diff options
Diffstat (limited to 'drivers')
58 files changed, 2782 insertions, 894 deletions
diff --git a/drivers/isdn/hardware/eicon/maintidi.c b/drivers/isdn/hardware/eicon/maintidi.c index 23960cb..41c26e7 100644 --- a/drivers/isdn/hardware/eicon/maintidi.c +++ b/drivers/isdn/hardware/eicon/maintidi.c @@ -959,8 +959,9 @@ static int process_idi_event (diva_strace_context_t* pLib, } if (!strncmp("State\\Layer2 No1", path, pVar->path_length)) { char* tmp = &pLib->lines[0].pInterface->Layer2[0]; - dword l2_state; - diva_strace_read_uint (pVar, &l2_state); + dword l2_state; + if (diva_strace_read_uint(pVar, &l2_state)) + return -1; switch (l2_state) { case 0: diff --git a/drivers/isdn/hardware/eicon/message.c b/drivers/isdn/hardware/eicon/message.c index 27d5dd6..ae89fb8 100644 --- a/drivers/isdn/hardware/eicon/message.c +++ b/drivers/isdn/hardware/eicon/message.c @@ -2692,7 +2692,7 @@ static byte connect_b3_req(dword Id, word Number, DIVA_CAPI_ADAPTER *a, if (!(fax_control_bits & T30_CONTROL_BIT_MORE_DOCUMENTS) || (fax_feature_bits & T30_FEATURE_BIT_MORE_DOCUMENTS)) { - len = (byte)(&(((T30_INFO *) 0)->universal_6)); + len = offsetof(T30_INFO, universal_6); fax_info_change = false; if (ncpi->length >= 4) { @@ -2754,7 +2754,7 @@ static byte connect_b3_req(dword Id, word Number, DIVA_CAPI_ADAPTER *a, for (i = 0; i < w; i++) ((T30_INFO *)(plci->fax_connect_info_buffer))->station_id[i] = fax_parms[4].info[1+i]; ((T30_INFO *)(plci->fax_connect_info_buffer))->head_line_len = 0; - len = (byte)(((T30_INFO *) 0)->station_id + 20); + len = offsetof(T30_INFO, station_id) + 20; w = fax_parms[5].length; if (w > 20) w = 20; @@ -2788,7 +2788,7 @@ static byte connect_b3_req(dword Id, word Number, DIVA_CAPI_ADAPTER *a, } else { - len = (byte)(&(((T30_INFO *) 0)->universal_6)); + len = offsetof(T30_INFO, universal_6); } fax_info_change = true; @@ -2892,7 +2892,7 @@ static byte connect_b3_res(dword Id, word Number, DIVA_CAPI_ADAPTER *a, && (plci->nsf_control_bits & T30_NSF_CONTROL_BIT_ENABLE_NSF) && (plci->nsf_control_bits & T30_NSF_CONTROL_BIT_NEGOTIATE_RESP)) { - len = ((byte)(((T30_INFO *) 0)->station_id + 20)); + len = offsetof(T30_INFO, station_id) + 20; if (plci->fax_connect_info_length < len) { ((T30_INFO *)(plci->fax_connect_info_buffer))->station_id_len = 0; @@ -3802,7 +3802,7 @@ static byte manufacturer_res(dword Id, word Number, DIVA_CAPI_ADAPTER *a, break; } ncpi = &m_parms[1]; - len = ((byte)(((T30_INFO *) 0)->station_id + 20)); + len = offsetof(T30_INFO, station_id) + 20; if (plci->fax_connect_info_length < len) { ((T30_INFO *)(plci->fax_connect_info_buffer))->station_id_len = 0; @@ -6844,7 +6844,7 @@ static void nl_ind(PLCI *plci) if ((plci->requested_options_conn | plci->requested_options | a->requested_options_table[plci->appl->Id-1]) & ((1L << PRIVATE_FAX_SUB_SEP_PWD) | (1L << PRIVATE_FAX_NONSTANDARD))) { - i = ((word)(((T30_INFO *) 0)->station_id + 20)) + ((T30_INFO *)plci->NL.RBuffer->P)->head_line_len; + i = offsetof(T30_INFO, station_id) + 20 + ((T30_INFO *)plci->NL.RBuffer->P)->head_line_len; while (i < plci->NL.RBuffer->length) plci->ncpi_buffer[++len] = plci->NL.RBuffer->P[i++]; } @@ -7236,7 +7236,7 @@ static void nl_ind(PLCI *plci) { plci->RData[1].P = plci->RData[0].P; plci->RData[1].PLength = plci->RData[0].PLength; - plci->RData[0].P = v120_header_buffer + (-((int) v120_header_buffer) & 3); + plci->RData[0].P = v120_header_buffer + (-((unsigned long)v120_header_buffer) & 3); if ((plci->NL.RBuffer->P[0] & V120_HEADER_EXTEND_BIT) || (plci->NL.RLength == 1)) plci->RData[0].PLength = 1; else @@ -8473,7 +8473,7 @@ static word add_b23(PLCI *plci, API_PARSE *bp) fax_control_bits |= T30_CONTROL_BIT_ACCEPT_SEL_POLLING; } len = nlc[0]; - pos = ((byte)(((T30_INFO *) 0)->station_id + 20)); + pos = offsetof(T30_INFO, station_id) + 20; if (pos < plci->fax_connect_info_length) { for (i = 1 + plci->fax_connect_info_buffer[pos]; i != 0; i--) @@ -8525,7 +8525,7 @@ static word add_b23(PLCI *plci, API_PARSE *bp) } PUT_WORD(&(((T30_INFO *)&nlc[1])->control_bits_low), fax_control_bits); - len = ((byte)(((T30_INFO *) 0)->station_id + 20)); + len = offsetof(T30_INFO, station_id) + 20; for (i = 0; i < len; i++) plci->fax_connect_info_buffer[i] = nlc[1+i]; ((T30_INFO *) plci->fax_connect_info_buffer)->head_line_len = 0; diff --git a/drivers/isdn/hisax/amd7930_fn.c b/drivers/isdn/hisax/amd7930_fn.c index bf526a7a..d6fdf1f 100644 --- a/drivers/isdn/hisax/amd7930_fn.c +++ b/drivers/isdn/hisax/amd7930_fn.c @@ -594,6 +594,7 @@ Amd7930_l1hw(struct PStack *st, int pr, void *arg) if (cs->debug & L1_DEB_WARN) debugl1(cs, "Amd7930: l1hw: l2l1 tx_skb exist this shouldn't happen"); skb_queue_tail(&cs->sq, skb); + spin_unlock_irqrestore(&cs->lock, flags); break; } if (cs->debug & DEB_DLOG_HEX) diff --git a/drivers/isdn/hisax/diva.c b/drivers/isdn/hisax/diva.c index 018bd29..0b0c2e5 100644 --- a/drivers/isdn/hisax/diva.c +++ b/drivers/isdn/hisax/diva.c @@ -382,7 +382,7 @@ MemwaitforXFW(struct IsdnCardState *cs, int hscx) { int to = 50; - while ((!(MemReadHSCX(cs, hscx, HSCX_STAR) & 0x44) == 0x40) && to) { + while (((MemReadHSCX(cs, hscx, HSCX_STAR) & 0x44) != 0x40) && to) { udelay(1); to--; } diff --git a/drivers/isdn/hisax/hfc_usb.c b/drivers/isdn/hisax/hfc_usb.c index 9de5420..a420b64 100644 --- a/drivers/isdn/hisax/hfc_usb.c +++ b/drivers/isdn/hisax/hfc_usb.c @@ -817,8 +817,8 @@ collect_rx_frame(usb_fifo * fifo, __u8 * data, int len, int finish) } /* we have a complete hdlc packet */ if (finish) { - if ((!fifo->skbuff->data[fifo->skbuff->len - 1]) - && (fifo->skbuff->len > 3)) { + if (fifo->skbuff->len > 3 && + !fifo->skbuff->data[fifo->skbuff->len - 1]) { if (fifon == HFCUSB_D_RX) { DBG(HFCUSB_DBG_DCHANNEL, diff --git a/drivers/isdn/hisax/hscx_irq.c b/drivers/isdn/hisax/hscx_irq.c index 7b1ad5e..2387d76 100644 --- a/drivers/isdn/hisax/hscx_irq.c +++ b/drivers/isdn/hisax/hscx_irq.c @@ -32,7 +32,7 @@ waitforXFW(struct IsdnCardState *cs, int hscx) { int to = 50; - while ((!(READHSCX(cs, hscx, HSCX_STAR) & 0x44) == 0x40) && to) { + while (((READHSCX(cs, hscx, HSCX_STAR) & 0x44) != 0x40) && to) { udelay(1); to--; } diff --git a/drivers/isdn/hisax/icc.c b/drivers/isdn/hisax/icc.c index 9aba646..c80cbb8 100644 --- a/drivers/isdn/hisax/icc.c +++ b/drivers/isdn/hisax/icc.c @@ -468,6 +468,7 @@ ICC_l1hw(struct PStack *st, int pr, void *arg) if (cs->debug & L1_DEB_WARN) debugl1(cs, " l2l1 tx_skb exist this shouldn't happen"); skb_queue_tail(&cs->sq, skb); + spin_unlock_irqrestore(&cs->lock, flags); break; } if (cs->debug & DEB_DLOG_HEX) diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c index 28182ed..fcfe17a 100644 --- a/drivers/isdn/mISDN/socket.c +++ b/drivers/isdn/mISDN/socket.c @@ -779,7 +779,7 @@ base_sock_create(struct net *net, struct socket *sock, int protocol) } static int -mISDN_sock_create(struct net *net, struct socket *sock, int proto) +mISDN_sock_create(struct net *net, struct socket *sock, int proto, int kern) { int err = -EPROTONOSUPPORT; diff --git a/drivers/isdn/mISDN/stack.c b/drivers/isdn/mISDN/stack.c index 3e1532a..0d05ec4 100644 --- a/drivers/isdn/mISDN/stack.c +++ b/drivers/isdn/mISDN/stack.c @@ -364,7 +364,7 @@ add_layer2(struct mISDNchannel *ch, struct mISDNstack *st) static int st_own_ctrl(struct mISDNchannel *ch, u_int cmd, void *arg) { - if (!ch->st || ch->st->layer1) + if (!ch->st || !ch->st->layer1) return -EINVAL; return ch->st->layer1->ctrl(ch->st->layer1, cmd, arg); } diff --git a/drivers/net/benet/be_cmds.h b/drivers/net/benet/be_cmds.h index 76410c1..69dc017 100644 --- a/drivers/net/benet/be_cmds.h +++ b/drivers/net/benet/be_cmds.h @@ -68,7 +68,7 @@ enum { #define CQE_STATUS_COMPL_MASK 0xFFFF #define CQE_STATUS_COMPL_SHIFT 0 /* bits 0 - 15 */ #define CQE_STATUS_EXTD_MASK 0xFFFF -#define CQE_STATUS_EXTD_SHIFT 0 /* bits 0 - 15 */ +#define CQE_STATUS_EXTD_SHIFT 16 /* bits 16 - 31 */ struct be_mcc_compl { u32 status; /* dword 0 */ diff --git a/drivers/net/bnx2x_hsi.h b/drivers/net/bnx2x_hsi.h index dc2f8ed5..5258533 100644 --- a/drivers/net/bnx2x_hsi.h +++ b/drivers/net/bnx2x_hsi.h @@ -264,6 +264,7 @@ struct port_hw_cfg { /* port 0: 0x12c port 1: 0x2bc */ #define PORT_HW_CFG_XGXS_EXT_PHY_TYPE_SFX7101 0x00000800 #define PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727 0x00000900 #define PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727_NOC 0x00000a00 +#define PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823 0x00000b00 #define PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE 0x0000fd00 #define PORT_HW_CFG_XGXS_EXT_PHY_TYPE_NOT_CONN 0x0000ff00 diff --git a/drivers/net/bnx2x_link.c b/drivers/net/bnx2x_link.c index e32d337..41b9b7bd 100644 --- a/drivers/net/bnx2x_link.c +++ b/drivers/net/bnx2x_link.c @@ -1107,18 +1107,21 @@ static void bnx2x_set_parallel_detection(struct link_params *params, MDIO_REG_BANK_SERDES_DIGITAL, MDIO_SERDES_DIGITAL_A_1000X_CONTROL2, &control2); - - - control2 |= MDIO_SERDES_DIGITAL_A_1000X_CONTROL2_PRL_DT_EN; - - + if (params->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_1G) + control2 |= MDIO_SERDES_DIGITAL_A_1000X_CONTROL2_PRL_DT_EN; + else + control2 &= ~MDIO_SERDES_DIGITAL_A_1000X_CONTROL2_PRL_DT_EN; + DP(NETIF_MSG_LINK, "params->speed_cap_mask = 0x%x, control2 = 0x%x\n", + params->speed_cap_mask, control2); CL45_WR_OVER_CL22(bp, params->port, params->phy_addr, MDIO_REG_BANK_SERDES_DIGITAL, MDIO_SERDES_DIGITAL_A_1000X_CONTROL2, control2); - if (phy_flags & PHY_XGXS_FLAG) { + if ((phy_flags & PHY_XGXS_FLAG) && + (params->speed_cap_mask & + PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)) { DP(NETIF_MSG_LINK, "XGXS\n"); CL45_WR_OVER_CL22(bp, params->port, @@ -1225,7 +1228,7 @@ static void bnx2x_set_autoneg(struct link_params *params, params->phy_addr, MDIO_REG_BANK_CL73_USERB0, MDIO_CL73_USERB0_CL73_UCTRL, - MDIO_CL73_USERB0_CL73_UCTRL_USTAT1_MUXSEL); + 0xe); /* Enable BAM Station Manager*/ CL45_WR_OVER_CL22(bp, params->port, @@ -1236,29 +1239,25 @@ static void bnx2x_set_autoneg(struct link_params *params, MDIO_CL73_USERB0_CL73_BAM_CTRL1_BAM_STATION_MNGR_EN | MDIO_CL73_USERB0_CL73_BAM_CTRL1_BAM_NP_AFTER_BP_EN); - /* Merge CL73 and CL37 aneg resolution */ - CL45_RD_OVER_CL22(bp, params->port, - params->phy_addr, - MDIO_REG_BANK_CL73_USERB0, - MDIO_CL73_USERB0_CL73_BAM_CTRL3, - ®_val); - - if (params->speed_cap_mask & - PORT_HW_CFG_SPEED_CAPABILITY_D0_10G) { - /* Set the CL73 AN speed */ + /* Advertise CL73 link speeds */ CL45_RD_OVER_CL22(bp, params->port, params->phy_addr, MDIO_REG_BANK_CL73_IEEEB1, MDIO_CL73_IEEEB1_AN_ADV2, ®_val); + if (params->speed_cap_mask & + PORT_HW_CFG_SPEED_CAPABILITY_D0_10G) + reg_val |= MDIO_CL73_IEEEB1_AN_ADV2_ADVR_10G_KX4; + if (params->speed_cap_mask & + PORT_HW_CFG_SPEED_CAPABILITY_D0_1G) + reg_val |= MDIO_CL73_IEEEB1_AN_ADV2_ADVR_1000M_KX; CL45_WR_OVER_CL22(bp, params->port, params->phy_addr, MDIO_REG_BANK_CL73_IEEEB1, MDIO_CL73_IEEEB1_AN_ADV2, - reg_val | MDIO_CL73_IEEEB1_AN_ADV2_ADVR_10G_KX4); + reg_val); - } /* CL73 Autoneg Enabled */ reg_val = MDIO_CL73_IEEEB0_CL73_AN_CONTROL_AN_EN; @@ -1351,6 +1350,7 @@ static void bnx2x_set_brcm_cl37_advertisment(struct link_params *params) static void bnx2x_calc_ieee_aneg_adv(struct link_params *params, u16 *ieee_fc) { + struct bnx2x *bp = params->bp; *ieee_fc = MDIO_COMBO_IEEE0_AUTO_NEG_ADV_FULL_DUPLEX; /* resolve pause mode and advertisement * Please refer to Table 28B-3 of the 802.3ab-1999 spec */ @@ -1380,18 +1380,30 @@ static void bnx2x_calc_ieee_aneg_adv(struct link_params *params, u16 *ieee_fc) *ieee_fc |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_NONE; break; } + DP(NETIF_MSG_LINK, "ieee_fc = 0x%x\n", *ieee_fc); } static void bnx2x_set_ieee_aneg_advertisment(struct link_params *params, u16 ieee_fc) { struct bnx2x *bp = params->bp; + u16 val; /* for AN, we are always publishing full duplex */ CL45_WR_OVER_CL22(bp, params->port, params->phy_addr, MDIO_REG_BANK_COMBO_IEEE0, MDIO_COMBO_IEEE0_AUTO_NEG_ADV, ieee_fc); + CL45_RD_OVER_CL22(bp, params->port, + params->phy_addr, + MDIO_REG_BANK_CL73_IEEEB1, + MDIO_CL73_IEEEB1_AN_ADV1, &val); + val &= ~MDIO_CL73_IEEEB1_AN_ADV1_PAUSE_BOTH; + val |= ((ieee_fc<<3) & MDIO_CL73_IEEEB1_AN_ADV1_PAUSE_MASK); + CL45_WR_OVER_CL22(bp, params->port, + params->phy_addr, + MDIO_REG_BANK_CL73_IEEEB1, + MDIO_CL73_IEEEB1_AN_ADV1, val); } static void bnx2x_restart_autoneg(struct link_params *params, u8 enable_cl73) @@ -1609,6 +1621,39 @@ static u8 bnx2x_ext_phy_resolve_fc(struct link_params *params, return ret; } +static u8 bnx2x_direct_parallel_detect_used(struct link_params *params) +{ + struct bnx2x *bp = params->bp; + u16 pd_10g, status2_1000x; + CL45_RD_OVER_CL22(bp, params->port, + params->phy_addr, + MDIO_REG_BANK_SERDES_DIGITAL, + MDIO_SERDES_DIGITAL_A_1000X_STATUS2, + &status2_1000x); + CL45_RD_OVER_CL22(bp, params->port, + params->phy_addr, + MDIO_REG_BANK_SERDES_DIGITAL, + MDIO_SERDES_DIGITAL_A_1000X_STATUS2, + &status2_1000x); + if (status2_1000x & MDIO_SERDES_DIGITAL_A_1000X_STATUS2_AN_DISABLED) { + DP(NETIF_MSG_LINK, "1G parallel detect link on port %d\n", + params->port); + return 1; + } + + CL45_RD_OVER_CL22(bp, params->port, + params->phy_addr, + MDIO_REG_BANK_10G_PARALLEL_DETECT, + MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_STATUS, + &pd_10g); + + if (pd_10g & MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_STATUS_PD_LINK) { + DP(NETIF_MSG_LINK, "10G parallel detect link on port %d\n", + params->port); + return 1; + } + return 0; +} static void bnx2x_flow_ctrl_resolve(struct link_params *params, struct link_vars *vars, @@ -1627,21 +1672,53 @@ static void bnx2x_flow_ctrl_resolve(struct link_params *params, (!(vars->phy_flags & PHY_SGMII_FLAG)) && (XGXS_EXT_PHY_TYPE(params->ext_phy_config) == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT)) { - CL45_RD_OVER_CL22(bp, params->port, - params->phy_addr, - MDIO_REG_BANK_COMBO_IEEE0, - MDIO_COMBO_IEEE0_AUTO_NEG_ADV, - &ld_pause); - CL45_RD_OVER_CL22(bp, params->port, - params->phy_addr, - MDIO_REG_BANK_COMBO_IEEE0, - MDIO_COMBO_IEEE0_AUTO_NEG_LINK_PARTNER_ABILITY1, - &lp_pause); - pause_result = (ld_pause & + if (bnx2x_direct_parallel_detect_used(params)) { + vars->flow_ctrl = params->req_fc_auto_adv; + return; + } + if ((gp_status & + (MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_AUTONEG_COMPLETE | + MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_MR_LP_NP_AN_ABLE)) == + (MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_AUTONEG_COMPLETE | + MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_MR_LP_NP_AN_ABLE)) { + + CL45_RD_OVER_CL22(bp, params->port, + params->phy_addr, + MDIO_REG_BANK_CL73_IEEEB1, + MDIO_CL73_IEEEB1_AN_ADV1, + &ld_pause); + CL45_RD_OVER_CL22(bp, params->port, + params->phy_addr, + MDIO_REG_BANK_CL73_IEEEB1, + MDIO_CL73_IEEEB1_AN_LP_ADV1, + &lp_pause); + pause_result = (ld_pause & + MDIO_CL73_IEEEB1_AN_ADV1_PAUSE_MASK) + >> 8; + pause_result |= (lp_pause & + MDIO_CL73_IEEEB1_AN_LP_ADV1_PAUSE_MASK) + >> 10; + DP(NETIF_MSG_LINK, "pause_result CL73 0x%x\n", + pause_result); + } else { + + CL45_RD_OVER_CL22(bp, params->port, + params->phy_addr, + MDIO_REG_BANK_COMBO_IEEE0, + MDIO_COMBO_IEEE0_AUTO_NEG_ADV, + &ld_pause); + CL45_RD_OVER_CL22(bp, params->port, + params->phy_addr, + MDIO_REG_BANK_COMBO_IEEE0, + MDIO_COMBO_IEEE0_AUTO_NEG_LINK_PARTNER_ABILITY1, + &lp_pause); + pause_result = (ld_pause & MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_MASK)>>5; - pause_result |= (lp_pause & + pause_result |= (lp_pause & MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_MASK)>>7; - DP(NETIF_MSG_LINK, "pause_result 0x%x\n", pause_result); + DP(NETIF_MSG_LINK, "pause_result CL37 0x%x\n", + pause_result); + } bnx2x_pause_resolve(vars, pause_result); } else if ((params->req_flow_ctrl == BNX2X_FLOW_CTRL_AUTO) && (bnx2x_ext_phy_resolve_fc(params, vars))) { @@ -1853,6 +1930,8 @@ static u8 bnx2x_link_settings_status(struct link_params *params, (XGXS_EXT_PHY_TYPE(params->ext_phy_config) == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8705) || (XGXS_EXT_PHY_TYPE(params->ext_phy_config) == + PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8706) || + (XGXS_EXT_PHY_TYPE(params->ext_phy_config) == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726))) { vars->autoneg = AUTO_NEG_ENABLED; @@ -1987,8 +2066,7 @@ static u8 bnx2x_emac_program(struct link_params *params, GRCBASE_EMAC0 + port*0x400 + EMAC_REG_EMAC_MODE, mode); - bnx2x_set_led(bp, params->port, LED_MODE_OPER, - line_speed, params->hw_led_mode, params->chip_id); + bnx2x_set_led(params, LED_MODE_OPER, line_speed); return 0; } @@ -2122,6 +2200,8 @@ static void bnx2x_ext_phy_reset(struct link_params *params, MDIO_PMA_REG_CTRL, 1<<15); break; + case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823: + break; case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE: DP(NETIF_MSG_LINK, "XGXS PHY Failure detected\n"); break; @@ -2512,16 +2592,11 @@ static void bnx2x_bcm8726_external_rom_boot(struct link_params *params) /* Need to wait 100ms after reset */ msleep(100); - /* Set serial boot control for external load */ - bnx2x_cl45_write(bp, port, ext_phy_type, ext_phy_addr, - MDIO_PMA_DEVAD, - MDIO_PMA_REG_MISC_CTRL1, 0x0001); - /* Micro controller re-boot */ bnx2x_cl45_write(bp, port, ext_phy_type, ext_phy_addr, MDIO_PMA_DEVAD, MDIO_PMA_REG_GEN_CTRL, - MDIO_PMA_REG_GEN_CTRL_ROM_RESET_INTERNAL_MP); + 0x018B); /* Set soft reset */ bnx2x_cl45_write(bp, port, ext_phy_type, ext_phy_addr, @@ -2529,14 +2604,10 @@ static void bnx2x_bcm8726_external_rom_boot(struct link_params *params) MDIO_PMA_REG_GEN_CTRL, MDIO_PMA_REG_GEN_CTRL_ROM_MICRO_RESET); - /* Set PLL register value to be same like in P13 ver */ bnx2x_cl45_write(bp, port, ext_phy_type, ext_phy_addr, MDIO_PMA_DEVAD, - MDIO_PMA_REG_PLL_CTRL, - 0x73A0); + MDIO_PMA_REG_MISC_CTRL1, 0x0001); - /* Clear soft reset. - Will automatically reset micro-controller re-boot */ bnx2x_cl45_write(bp, port, ext_phy_type, ext_phy_addr, MDIO_PMA_DEVAD, MDIO_PMA_REG_GEN_CTRL, @@ -3462,8 +3533,8 @@ static void bnx2x_8481_set_10G_led_mode(struct link_params *params, MDIO_PMA_REG_8481_LINK_SIGNAL, &val1); /* Set bit 2 to 0, and bits [1:0] to 10 */ - val1 &= ~((1<<0) | (1<<2)); /* Clear bits 0,2*/ - val1 |= (1<<1); /* Set bit 1 */ + val1 &= ~((1<<0) | (1<<2) | (1<<7)); /* Clear bits 0,2,7*/ + val1 |= ((1<<1) | (1<<6)); /* Set bit 1, 6 */ bnx2x_cl45_write(bp, params->port, ext_phy_type, @@ -3497,36 +3568,19 @@ static void bnx2x_8481_set_10G_led_mode(struct link_params *params, MDIO_PMA_REG_8481_LED2_MASK, 0); - /* LED3 (10G/1G/100/10G Activity) */ - bnx2x_cl45_read(bp, params->port, - ext_phy_type, - ext_phy_addr, - MDIO_PMA_DEVAD, - MDIO_PMA_REG_8481_LINK_SIGNAL, - &val1); - /* Enable blink based on source 4(Activity) */ - val1 &= ~((1<<7) | (1<<8)); /* Clear bits 7,8 */ - val1 |= (1<<6); /* Set only bit 6 */ + /* Unmask LED3 for 10G link */ bnx2x_cl45_write(bp, params->port, ext_phy_type, ext_phy_addr, MDIO_PMA_DEVAD, - MDIO_PMA_REG_8481_LINK_SIGNAL, - val1); - - bnx2x_cl45_read(bp, params->port, - ext_phy_type, - ext_phy_addr, - MDIO_PMA_DEVAD, MDIO_PMA_REG_8481_LED3_MASK, - &val1); - val1 |= (1<<4); /* Unmask LED3 for 10G link */ + 0x6); bnx2x_cl45_write(bp, params->port, ext_phy_type, ext_phy_addr, MDIO_PMA_DEVAD, - MDIO_PMA_REG_8481_LED3_MASK, - val1); + MDIO_PMA_REG_8481_LED3_BLINK, + 0); } @@ -3544,7 +3598,10 @@ static void bnx2x_init_internal_phy(struct link_params *params, bnx2x_set_preemphasis(params); /* forced speed requested? */ - if (vars->line_speed != SPEED_AUTO_NEG) { + if (vars->line_speed != SPEED_AUTO_NEG || + ((XGXS_EXT_PHY_TYPE(params->ext_phy_config) == + PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT) && + params->loopback_mode == LOOPBACK_EXT)) { DP(NETIF_MSG_LINK, "not SGMII, no AN\n"); /* disable autoneg */ @@ -3693,19 +3750,6 @@ static u8 bnx2x_ext_phy_init(struct link_params *params, struct link_vars *vars) } } /* Force speed */ - /* First enable LASI */ - bnx2x_cl45_write(bp, params->port, - ext_phy_type, - ext_phy_addr, - MDIO_PMA_DEVAD, - MDIO_PMA_REG_RX_ALARM_CTRL, - 0x0400); - bnx2x_cl45_write(bp, params->port, - ext_phy_type, - ext_phy_addr, - MDIO_PMA_DEVAD, - MDIO_PMA_REG_LASI_CTRL, 0x0004); - if (params->req_line_speed == SPEED_10000) { DP(NETIF_MSG_LINK, "XGXS 8706 force 10Gbps\n"); @@ -3715,6 +3759,9 @@ static u8 bnx2x_ext_phy_init(struct link_params *params, struct link_vars *vars) MDIO_PMA_DEVAD, MDIO_PMA_REG_DIGITAL_CTRL, 0x400); + bnx2x_cl45_write(bp, params->port, ext_phy_type, + ext_phy_addr, MDIO_PMA_DEVAD, + MDIO_PMA_REG_LASI_CTRL, 1); } else { /* Force 1Gbps using autoneg with 1G advertisment */ @@ -3756,6 +3803,17 @@ static u8 bnx2x_ext_phy_init(struct link_params *params, struct link_vars *vars) MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0x1200); + bnx2x_cl45_write(bp, params->port, + ext_phy_type, + ext_phy_addr, + MDIO_PMA_DEVAD, + MDIO_PMA_REG_RX_ALARM_CTRL, + 0x0400); + bnx2x_cl45_write(bp, params->port, + ext_phy_type, + ext_phy_addr, + MDIO_PMA_DEVAD, + MDIO_PMA_REG_LASI_CTRL, 0x0004); } bnx2x_save_bcm_spirom_ver(bp, params->port, @@ -4291,6 +4349,7 @@ static u8 bnx2x_ext_phy_init(struct link_params *params, struct link_vars *vars) break; } case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481: + case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823: /* This phy uses the NIG latch mechanism since link indication arrives through its LED4 and not via its LASI signal, so we get steady signal @@ -4298,6 +4357,12 @@ static u8 bnx2x_ext_phy_init(struct link_params *params, struct link_vars *vars) bnx2x_bits_en(bp, NIG_REG_LATCH_BC_0 + params->port*4, 1 << NIG_LATCH_BC_ENABLE_MI_INT); + bnx2x_cl45_write(bp, params->port, + PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481, + ext_phy_addr, + MDIO_PMA_DEVAD, + MDIO_PMA_REG_CTRL, 0x0000); + bnx2x_8481_set_led4(params, ext_phy_type, ext_phy_addr); if (params->req_line_speed == SPEED_AUTO_NEG) { @@ -4394,17 +4459,12 @@ static u8 bnx2x_ext_phy_init(struct link_params *params, struct link_vars *vars) PORT_HW_CFG_SPEED_CAPABILITY_D0_10G) { DP(NETIF_MSG_LINK, "Advertising 10G\n"); /* Restart autoneg for 10G*/ - bnx2x_cl45_read(bp, params->port, - ext_phy_type, - ext_phy_addr, - MDIO_AN_DEVAD, - MDIO_AN_REG_CTRL, &val); - val |= 0x200; + bnx2x_cl45_write(bp, params->port, ext_phy_type, ext_phy_addr, MDIO_AN_DEVAD, - MDIO_AN_REG_CTRL, val); + MDIO_AN_REG_CTRL, 0x3200); } } else { /* Force speed */ @@ -5148,6 +5208,7 @@ static u8 bnx2x_ext_phy_is_link_up(struct link_params *params, } break; case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481: + case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823: /* Check 10G-BaseT link status */ /* Check PMD signal ok */ bnx2x_cl45_read(bp, params->port, ext_phy_type, @@ -5363,8 +5424,10 @@ static void bnx2x_link_int_ack(struct link_params *params, (NIG_STATUS_XGXS0_LINK10G | NIG_STATUS_XGXS0_LINK_STATUS | NIG_STATUS_SERDES0_LINK_STATUS)); - if (XGXS_EXT_PHY_TYPE(params->ext_phy_config) - == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481) { + if ((XGXS_EXT_PHY_TYPE(params->ext_phy_config) + == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481) || + (XGXS_EXT_PHY_TYPE(params->ext_phy_config) + == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823)) { bnx2x_8481_rearm_latch_signal(bp, port, is_mi_int); } if (vars->phy_link_up) { @@ -5477,6 +5540,7 @@ u8 bnx2x_get_ext_phy_fw_version(struct link_params *params, u8 driver_loaded, status = bnx2x_format_ver(spirom_ver, version, len); break; case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481: + case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823: spirom_ver = ((spirom_ver & 0xF80) >> 7) << 16 | (spirom_ver & 0x7F); status = bnx2x_format_ver(spirom_ver, version, len); @@ -5728,13 +5792,15 @@ u8 bnx2x_override_led_value(struct bnx2x *bp, u8 port, } -u8 bnx2x_set_led(struct bnx2x *bp, u8 port, u8 mode, u32 speed, - u16 hw_led_mode, u32 chip_id) +u8 bnx2x_set_led(struct link_params *params, u8 mode, u32 speed) { + u8 port = params->port; + u16 hw_led_mode = params->hw_led_mode; u8 rc = 0; u32 tmp; u32 emac_base = port ? GRCBASE_EMAC1 : GRCBASE_EMAC0; - + u32 ext_phy_type = XGXS_EXT_PHY_TYPE(params->ext_phy_config); + struct bnx2x *bp = params->bp; DP(NETIF_MSG_LINK, "bnx2x_set_led: port %x, mode %d\n", port, mode); DP(NETIF_MSG_LINK, "speed 0x%x, hw_led_mode 0x%x\n", speed, hw_led_mode); @@ -5749,7 +5815,14 @@ u8 bnx2x_set_led(struct bnx2x *bp, u8 port, u8 mode, u32 speed, break; case LED_MODE_OPER: - REG_WR(bp, NIG_REG_LED_MODE_P0 + port*4, hw_led_mode); + if (ext_phy_type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT) { + REG_WR(bp, NIG_REG_LED_MODE_P0 + port*4, 0); + REG_WR(bp, NIG_REG_LED_10G_P0 + port*4, 1); + } else { + REG_WR(bp, NIG_REG_LED_MODE_P0 + port*4, + hw_led_mode); + } + REG_WR(bp, NIG_REG_LED_CONTROL_OVERRIDE_TRAFFIC_P0 + port*4, 0); /* Set blinking rate to ~15.9Hz */ @@ -5761,7 +5834,7 @@ u8 bnx2x_set_led(struct bnx2x *bp, u8 port, u8 mode, u32 speed, EMAC_WR(bp, EMAC_REG_EMAC_LED, (tmp & (~EMAC_LED_OVERRIDE))); - if (!CHIP_IS_E1H(bp) && + if (CHIP_IS_E1(bp) && ((speed == SPEED_2500) || (speed == SPEED_1000) || (speed == SPEED_100) || @@ -5864,6 +5937,7 @@ static u8 bnx2x_link_initialize(struct link_params *params, if (non_ext_phy || (ext_phy_type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8705) || + (ext_phy_type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8706) || (ext_phy_type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726) || (params->loopback_mode == LOOPBACK_EXT_PHY)) { if (params->req_line_speed == SPEED_AUTO_NEG) @@ -6030,10 +6104,7 @@ u8 bnx2x_phy_init(struct link_params *params, struct link_vars *vars) REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0); - bnx2x_set_led(bp, params->port, LED_MODE_OPER, - vars->line_speed, params->hw_led_mode, - params->chip_id); - + bnx2x_set_led(params, LED_MODE_OPER, vars->line_speed); } else /* No loopback */ { @@ -6091,15 +6162,13 @@ u8 bnx2x_link_reset(struct link_params *params, struct link_vars *vars, { struct bnx2x *bp = params->bp; u32 ext_phy_config = params->ext_phy_config; - u16 hw_led_mode = params->hw_led_mode; - u32 chip_id = params->chip_id; u8 port = params->port; u32 ext_phy_type = XGXS_EXT_PHY_TYPE(ext_phy_config); u32 val = REG_RD(bp, params->shmem_base + offsetof(struct shmem_region, dev_info. port_feature_config[params->port]. config)); - + DP(NETIF_MSG_LINK, "Resetting the link of port %d\n", port); /* disable attentions */ vars->link_status = 0; bnx2x_update_mng(params, vars->link_status); @@ -6127,7 +6196,7 @@ u8 bnx2x_link_reset(struct link_params *params, struct link_vars *vars, * Hold it as vars low */ /* clear link led */ - bnx2x_set_led(bp, port, LED_MODE_OFF, 0, hw_led_mode, chip_id); + bnx2x_set_led(params, LED_MODE_OFF, 0); if (reset_ext_phy) { switch (ext_phy_type) { case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT: @@ -6163,6 +6232,22 @@ u8 bnx2x_link_reset(struct link_params *params, struct link_vars *vars, bnx2x_8726_reset_phy(bp, params->port, ext_phy_addr); break; } + case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823: + { + u8 ext_phy_addr = + XGXS_EXT_PHY_ADDR(params->ext_phy_config); + bnx2x_cl45_write(bp, port, + PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481, + ext_phy_addr, + MDIO_AN_DEVAD, + MDIO_AN_REG_CTRL, 0x0000); + bnx2x_cl45_write(bp, port, + PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481, + ext_phy_addr, + MDIO_PMA_DEVAD, + MDIO_PMA_REG_CTRL, 1); + break; + } default: /* HW reset */ bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_1, @@ -6198,9 +6283,7 @@ static u8 bnx2x_update_link_down(struct link_params *params, u8 port = params->port; DP(NETIF_MSG_LINK, "Port %x: Link is down\n", port); - bnx2x_set_led(bp, port, LED_MODE_OFF, - 0, params->hw_led_mode, - params->chip_id); + bnx2x_set_led(params, LED_MODE_OFF, 0); /* indicate no mac active */ vars->mac_type = MAC_TYPE_NONE; @@ -6237,15 +6320,13 @@ static u8 bnx2x_update_link_up(struct link_params *params, vars->link_status |= LINK_STATUS_LINK_UP; if (link_10g) { bnx2x_bmac_enable(params, vars, 0); - bnx2x_set_led(bp, port, LED_MODE_OPER, - SPEED_10000, params->hw_led_mode, - params->chip_id); - + bnx2x_set_led(params, LED_MODE_OPER, SPEED_10000); } else { - bnx2x_emac_enable(params, vars, 0); rc = bnx2x_emac_program(params, vars->line_speed, vars->duplex); + bnx2x_emac_enable(params, vars, 0); + /* AN complete? */ if (gp_status & MDIO_AN_CL73_OR_37_COMPLETE) { if (!(vars->phy_flags & @@ -6343,6 +6424,7 @@ u8 bnx2x_link_update(struct link_params *params, struct link_vars *vars) if ((ext_phy_type != PORT_HW_CFG_SERDES_EXT_PHY_TYPE_DIRECT) && (ext_phy_type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8705) && + (ext_phy_type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8706) && (ext_phy_type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726) && (ext_phy_link_up && !vars->phy_link_up)) bnx2x_init_internal_phy(params, vars, 0); @@ -6578,6 +6660,13 @@ static u8 bnx2x_8726_common_init_phy(struct bnx2x *bp, u32 shmem_base) return 0; } + +static u8 bnx2x_84823_common_init_phy(struct bnx2x *bp, u32 shmem_base) +{ + /* HW reset */ + bnx2x_ext_phy_hw_reset(bp, 1); + return 0; +} u8 bnx2x_common_init_phy(struct bnx2x *bp, u32 shmem_base) { u8 rc = 0; @@ -6607,7 +6696,9 @@ u8 bnx2x_common_init_phy(struct bnx2x *bp, u32 shmem_base) /* GPIO1 affects both ports, so there's need to pull it for single port alone */ rc = bnx2x_8726_common_init_phy(bp, shmem_base); - + break; + case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823: + rc = bnx2x_84823_common_init_phy(bp, shmem_base); break; default: DP(NETIF_MSG_LINK, diff --git a/drivers/net/bnx2x_link.h b/drivers/net/bnx2x_link.h index f3e2522..40c2981 100644 --- a/drivers/net/bnx2x_link.h +++ b/drivers/net/bnx2x_link.h @@ -178,8 +178,7 @@ u8 bnx2x_get_ext_phy_fw_version(struct link_params *params, u8 driver_loaded, Basically, the CLC takes care of the led for the link, but in case one needs to set/unset the led unnaturally, set the "mode" to LED_MODE_OPER to blink the led, and LED_MODE_OFF to set the led off.*/ -u8 bnx2x_set_led(struct bnx2x *bp, u8 port, u8 mode, u32 speed, - u16 hw_led_mode, u32 chip_id); +u8 bnx2x_set_led(struct link_params *params, u8 mode, u32 speed); #define LED_MODE_OFF 0 #define LED_MODE_OPER 2 diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c index 59b58d8..61974b7 100644 --- a/drivers/net/bnx2x_main.c +++ b/drivers/net/bnx2x_main.c @@ -56,8 +56,8 @@ #include "bnx2x_init_ops.h" #include "bnx2x_dump.h" -#define DRV_MODULE_VERSION "1.52.1-1" -#define DRV_MODULE_RELDATE "2009/10/13" +#define DRV_MODULE_VERSION "1.52.1-3" +#define DRV_MODULE_RELDATE "2009/11/05" #define BNX2X_BC_VER 0x040200 #include <linux/firmware.h> @@ -10855,7 +10855,6 @@ static void bnx2x_get_ethtool_stats(struct net_device *dev, static int bnx2x_phys_id(struct net_device *dev, u32 data) { struct bnx2x *bp = netdev_priv(dev); - int port = BP_PORT(bp); int i; if (!netif_running(dev)) @@ -10869,13 +10868,10 @@ static int bnx2x_phys_id(struct net_device *dev, u32 data) for (i = 0; i < (data * 2); i++) { if ((i % 2) == 0) - bnx2x_set_led(bp, port, LED_MODE_OPER, SPEED_1000, - bp->link_params.hw_led_mode, - bp->link_params.chip_id); + bnx2x_set_led(&bp->link_params, LED_MODE_OPER, + SPEED_1000); else - bnx2x_set_led(bp, port, LED_MODE_OFF, 0, - bp->link_params.hw_led_mode, - bp->link_params.chip_id); + bnx2x_set_led(&bp->link_params, LED_MODE_OFF, 0); msleep_interruptible(500); if (signal_pending(current)) @@ -10883,10 +10879,8 @@ static int bnx2x_phys_id(struct net_device *dev, u32 data) } if (bp->link_vars.link_up) - bnx2x_set_led(bp, port, LED_MODE_OPER, - bp->link_vars.line_speed, - bp->link_params.hw_led_mode, - bp->link_params.chip_id); + bnx2x_set_led(&bp->link_params, LED_MODE_OPER, + bp->link_vars.line_speed); return 0; } diff --git a/drivers/net/bnx2x_reg.h b/drivers/net/bnx2x_reg.h index aa76cba..b668173 100644 --- a/drivers/net/bnx2x_reg.h +++ b/drivers/net/bnx2x_reg.h @@ -4772,18 +4772,28 @@ #define PCI_ID_VAL2 0x438 -#define MDIO_REG_BANK_CL73_IEEEB0 0x0 -#define MDIO_CL73_IEEEB0_CL73_AN_CONTROL 0x0 +#define MDIO_REG_BANK_CL73_IEEEB0 0x0 +#define MDIO_CL73_IEEEB0_CL73_AN_CONTROL 0x0 #define MDIO_CL73_IEEEB0_CL73_AN_CONTROL_RESTART_AN 0x0200 #define MDIO_CL73_IEEEB0_CL73_AN_CONTROL_AN_EN 0x1000 #define MDIO_CL73_IEEEB0_CL73_AN_CONTROL_MAIN_RST 0x8000 -#define MDIO_REG_BANK_CL73_IEEEB1 0x10 -#define MDIO_CL73_IEEEB1_AN_ADV2 0x01 +#define MDIO_REG_BANK_CL73_IEEEB1 0x10 +#define MDIO_CL73_IEEEB1_AN_ADV1 0x00 +#define MDIO_CL73_IEEEB1_AN_ADV1_PAUSE 0x0400 +#define MDIO_CL73_IEEEB1_AN_ADV1_ASYMMETRIC 0x0800 +#define MDIO_CL73_IEEEB1_AN_ADV1_PAUSE_BOTH 0x0C00 +#define MDIO_CL73_IEEEB1_AN_ADV1_PAUSE_MASK 0x0C00 +#define MDIO_CL73_IEEEB1_AN_ADV2 0x01 #define MDIO_CL73_IEEEB1_AN_ADV2_ADVR_1000M 0x0000 #define MDIO_CL73_IEEEB1_AN_ADV2_ADVR_1000M_KX 0x0020 #define MDIO_CL73_IEEEB1_AN_ADV2_ADVR_10G_KX4 0x0040 #define MDIO_CL73_IEEEB1_AN_ADV2_ADVR_10G_KR 0x0080 +#define MDIO_CL73_IEEEB1_AN_LP_ADV1 0x03 +#define MDIO_CL73_IEEEB1_AN_LP_ADV1_PAUSE 0x0400 +#define MDIO_CL73_IEEEB1_AN_LP_ADV1_ASYMMETRIC 0x0800 +#define MDIO_CL73_IEEEB1_AN_LP_ADV1_PAUSE_BOTH 0x0C00 +#define MDIO_CL73_IEEEB1_AN_LP_ADV1_PAUSE_MASK 0x0C00 #define MDIO_REG_BANK_RX0 0x80b0 #define MDIO_RX0_RX_STATUS 0x10 @@ -4910,6 +4920,8 @@ #define MDIO_REG_BANK_10G_PARALLEL_DETECT 0x8130 +#define MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_STATUS 0x10 +#define MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_STATUS_PD_LINK 0x8000 #define MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_CONTROL 0x11 #define MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_CONTROL_PARDET10G_EN 0x1 #define MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_LINK 0x13 @@ -4934,6 +4946,8 @@ #define MDIO_SERDES_DIGITAL_A_1000X_STATUS1_SPEED_1G 0x0010 #define MDIO_SERDES_DIGITAL_A_1000X_STATUS1_SPEED_100M 0x0008 #define MDIO_SERDES_DIGITAL_A_1000X_STATUS1_SPEED_10M 0x0000 +#define MDIO_SERDES_DIGITAL_A_1000X_STATUS2 0x15 +#define MDIO_SERDES_DIGITAL_A_1000X_STATUS2_AN_DISABLED 0x0002 #define MDIO_SERDES_DIGITAL_MISC1 0x18 #define MDIO_SERDES_DIGITAL_MISC1_REFCLK_SEL_MASK 0xE000 #define MDIO_SERDES_DIGITAL_MISC1_REFCLK_SEL_25M 0x0000 @@ -5115,6 +5129,7 @@ Theotherbitsarereservedandshouldbezero*/ #define MDIO_PMA_REG_8481_LED1_MASK 0xa82c #define MDIO_PMA_REG_8481_LED2_MASK 0xa82f #define MDIO_PMA_REG_8481_LED3_MASK 0xa832 +#define MDIO_PMA_REG_8481_LED3_BLINK 0xa834 #define MDIO_PMA_REG_8481_SIGNAL_MASK 0xa835 #define MDIO_PMA_REG_8481_LINK_SIGNAL 0xa83b diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c index f1b09c0..79ce8e8 100644 --- a/drivers/net/davinci_emac.c +++ b/drivers/net/davinci_emac.c @@ -2217,7 +2217,7 @@ void emac_poll_controller(struct net_device *ndev) struct emac_priv *priv = netdev_priv(ndev); emac_int_disable(priv); - emac_irq(ndev->irq, priv); + emac_irq(ndev->irq, ndev); emac_int_enable(priv); } #endif diff --git a/drivers/net/e100.c b/drivers/net/e100.c index f428c5f..7462fdf 100644 --- a/drivers/net/e100.c +++ b/drivers/net/e100.c @@ -1438,19 +1438,31 @@ static int e100_phy_init(struct nic *nic) } else DPRINTK(HW, DEBUG, "phy_addr = %d\n", nic->mii.phy_id); - /* Isolate all the PHY ids */ - for (addr = 0; addr < 32; addr++) - mdio_write(netdev, addr, MII_BMCR, BMCR_ISOLATE); - /* Select the discovered PHY */ - bmcr &= ~BMCR_ISOLATE; - mdio_write(netdev, nic->mii.phy_id, MII_BMCR, bmcr); - /* Get phy ID */ id_lo = mdio_read(netdev, nic->mii.phy_id, MII_PHYSID1); id_hi = mdio_read(netdev, nic->mii.phy_id, MII_PHYSID2); nic->phy = (u32)id_hi << 16 | (u32)id_lo; DPRINTK(HW, DEBUG, "phy ID = 0x%08X\n", nic->phy); + /* Select the phy and isolate the rest */ + for (addr = 0; addr < 32; addr++) { + if (addr != nic->mii.phy_id) { + mdio_write(netdev, addr, MII_BMCR, BMCR_ISOLATE); + } else if (nic->phy != phy_82552_v) { + bmcr = mdio_read(netdev, addr, MII_BMCR); + mdio_write(netdev, addr, MII_BMCR, + bmcr & ~BMCR_ISOLATE); + } + } + /* + * Workaround for 82552: + * Clear the ISOLATE bit on selected phy_id last (mirrored on all + * other phy_id's) using bmcr value from addr discovery loop above. + */ + if (nic->phy == phy_82552_v) + mdio_write(netdev, nic->mii.phy_id, MII_BMCR, + bmcr & ~BMCR_ISOLATE); + /* Handle National tx phys */ #define NCS_PHY_MODEL_MASK 0xFFF0FFFF if ((nic->phy & NCS_PHY_MODEL_MASK) == phy_nsc_tx) { diff --git a/drivers/net/e1000e/defines.h b/drivers/net/e1000e/defines.h index c0f185b..1190167 100644 --- a/drivers/net/e1000e/defines.h +++ b/drivers/net/e1000e/defines.h @@ -76,6 +76,7 @@ /* Extended Device Control */ #define E1000_CTRL_EXT_SDP7_DATA 0x00000080 /* Value of SW Definable Pin 7 */ #define E1000_CTRL_EXT_EE_RST 0x00002000 /* Reinitialize from EEPROM */ +#define E1000_CTRL_EXT_SPD_BYPS 0x00008000 /* Speed Select Bypass */ #define E1000_CTRL_EXT_RO_DIS 0x00020000 /* Relaxed Ordering disable */ #define E1000_CTRL_EXT_DMA_DYN_CLK_EN 0x00080000 /* DMA Dynamic Clock Gating */ #define E1000_CTRL_EXT_LINK_MODE_MASK 0x00C00000 @@ -347,6 +348,7 @@ /* Extended Configuration Control and Size */ #define E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP 0x00000020 #define E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE 0x00000001 +#define E1000_EXTCNF_CTRL_OEM_WRITE_ENABLE 0x00000008 #define E1000_EXTCNF_CTRL_SWFLAG 0x00000020 #define E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_MASK 0x00FF0000 #define E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_SHIFT 16 diff --git a/drivers/net/e1000e/e1000.h b/drivers/net/e1000e/e1000.h index 08a4f9d..00989c5 100644 --- a/drivers/net/e1000e/e1000.h +++ b/drivers/net/e1000e/e1000.h @@ -141,6 +141,20 @@ struct e1000_info; #define HV_TNCRS_UPPER PHY_REG(778, 29) /* Transmit with no CRS */ #define HV_TNCRS_LOWER PHY_REG(778, 30) +/* BM PHY Copper Specific Status */ +#define BM_CS_STATUS 17 +#define BM_CS_STATUS_LINK_UP 0x0400 +#define BM_CS_STATUS_RESOLVED 0x0800 +#define BM_CS_STATUS_SPEED_MASK 0xC000 +#define BM_CS_STATUS_SPEED_1000 0x8000 + +/* 82577 Mobile Phy Status Register */ +#define HV_M_STATUS 26 +#define HV_M_STATUS_AUTONEG_COMPLETE 0x1000 +#define HV_M_STATUS_SPEED_MASK 0x0300 +#define HV_M_STATUS_SPEED_1000 0x0200 +#define HV_M_STATUS_LINK_UP 0x0040 + enum e1000_boards { board_82571, board_82572, diff --git a/drivers/net/e1000e/hw.h b/drivers/net/e1000e/hw.h index 7b05cf4..aaea41e 100644 --- a/drivers/net/e1000e/hw.h +++ b/drivers/net/e1000e/hw.h @@ -903,6 +903,7 @@ struct e1000_shadow_ram { struct e1000_dev_spec_ich8lan { bool kmrn_lock_loss_workaround_enabled; struct e1000_shadow_ram shadow_ram[E1000_ICH8_SHADOW_RAM_WORDS]; + bool nvm_k1_enabled; }; struct e1000_hw { diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c index b6388b9..51ddb04 100644 --- a/drivers/net/e1000e/ich8lan.c +++ b/drivers/net/e1000e/ich8lan.c @@ -124,11 +124,25 @@ #define SW_FLAG_TIMEOUT 1000 /* SW Semaphore flag timeout in milliseconds */ +/* SMBus Address Phy Register */ +#define HV_SMB_ADDR PHY_REG(768, 26) +#define HV_SMB_ADDR_PEC_EN 0x0200 +#define HV_SMB_ADDR_VALID 0x0080 + +/* Strapping Option Register - RO */ +#define E1000_STRAP 0x0000C +#define E1000_STRAP_SMBUS_ADDRESS_MASK 0x00FE0000 +#define E1000_STRAP_SMBUS_ADDRESS_SHIFT 17 + /* OEM Bits Phy Register */ #define HV_OEM_BITS PHY_REG(768, 25) #define HV_OEM_BITS_LPLU 0x0004 /* Low Power Link Up */ +#define HV_OEM_BITS_GBE_DIS 0x0040 /* Gigabit Disable */ #define HV_OEM_BITS_RESTART_AN 0x0400 /* Restart Auto-negotiation */ +#define E1000_NVM_K1_CONFIG 0x1B /* NVM K1 Config Word */ +#define E1000_NVM_K1_ENABLE 0x1 /* NVM Enable K1 bit */ + /* ICH GbE Flash Hardware Sequencing Flash Status Register bit breakdown */ /* Offset 04h HSFSTS */ union ich8_hws_flash_status { @@ -208,6 +222,9 @@ static s32 e1000_cleanup_led_pchlan(struct e1000_hw *hw); static s32 e1000_led_on_pchlan(struct e1000_hw *hw); static s32 e1000_led_off_pchlan(struct e1000_hw *hw); static s32 e1000_set_lplu_state_pchlan(struct e1000_hw *hw, bool active); +static void e1000_lan_init_done_ich8lan(struct e1000_hw *hw); +static s32 e1000_k1_gig_workaround_hv(struct e1000_hw *hw, bool link); +static s32 e1000_configure_k1_ich8lan(struct e1000_hw *hw, bool k1_enable); static inline u16 __er16flash(struct e1000_hw *hw, unsigned long reg) { @@ -483,14 +500,6 @@ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw) goto out; } - if (hw->mac.type == e1000_pchlan) { - ret_val = e1000e_write_kmrn_reg(hw, - E1000_KMRNCTRLSTA_K1_CONFIG, - E1000_KMRNCTRLSTA_K1_ENABLE); - if (ret_val) - goto out; - } - /* * First we want to see if the MII Status Register reports * link. If so, then we want to get the current speed/duplex @@ -500,6 +509,12 @@ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw) if (ret_val) goto out; + if (hw->mac.type == e1000_pchlan) { + ret_val = e1000_k1_gig_workaround_hv(hw, link); + if (ret_val) + goto out; + } + if (!link) goto out; /* No link detected */ @@ -794,6 +809,326 @@ static s32 e1000_phy_force_speed_duplex_ich8lan(struct e1000_hw *hw) } /** + * e1000_sw_lcd_config_ich8lan - SW-based LCD Configuration + * @hw: pointer to the HW structure + * + * SW should configure the LCD from the NVM extended configuration region + * as a workaround for certain parts. + **/ +static s32 e1000_sw_lcd_config_ich8lan(struct e1000_hw *hw) +{ + struct e1000_phy_info *phy = &hw->phy; + u32 i, data, cnf_size, cnf_base_addr, sw_cfg_mask; + s32 ret_val; + u16 word_addr, reg_data, reg_addr, phy_page = 0; + + ret_val = hw->phy.ops.acquire_phy(hw); + if (ret_val) + return ret_val; + + /* + * Initialize the PHY from the NVM on ICH platforms. This + * is needed due to an issue where the NVM configuration is + * not properly autoloaded after power transitions. + * Therefore, after each PHY reset, we will load the + * configuration data out of the NVM manually. + */ + if ((hw->mac.type == e1000_ich8lan && phy->type == e1000_phy_igp_3) || + (hw->mac.type == e1000_pchlan)) { + struct e1000_adapter *adapter = hw->adapter; + + /* Check if SW needs to configure the PHY */ + if ((adapter->pdev->device == E1000_DEV_ID_ICH8_IGP_M_AMT) || + (adapter->pdev->device == E1000_DEV_ID_ICH8_IGP_M) || + (hw->mac.type == e1000_pchlan)) + sw_cfg_mask = E1000_FEXTNVM_SW_CONFIG_ICH8M; + else + sw_cfg_mask = E1000_FEXTNVM_SW_CONFIG; + + data = er32(FEXTNVM); + if (!(data & sw_cfg_mask)) + goto out; + + /* Wait for basic configuration completes before proceeding */ + e1000_lan_init_done_ich8lan(hw); + + /* + * Make sure HW does not configure LCD from PHY + * extended configuration before SW configuration + */ + data = er32(EXTCNF_CTRL); + if (data & E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE) + goto out; + + cnf_size = er32(EXTCNF_SIZE); + cnf_size &= E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_MASK; + cnf_size >>= E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_SHIFT; + if (!cnf_size) + goto out; + + cnf_base_addr = data & E1000_EXTCNF_CTRL_EXT_CNF_POINTER_MASK; + cnf_base_addr >>= E1000_EXTCNF_CTRL_EXT_CNF_POINTER_SHIFT; + + if (!(data & E1000_EXTCNF_CTRL_OEM_WRITE_ENABLE) && + (hw->mac.type == e1000_pchlan)) { + /* + * HW configures the SMBus address and LEDs when the + * OEM and LCD Write Enable bits are set in the NVM. + * When both NVM bits are cleared, SW will configure + * them instead. + */ + data = er32(STRAP); + data &= E1000_STRAP_SMBUS_ADDRESS_MASK; + reg_data = data >> E1000_STRAP_SMBUS_ADDRESS_SHIFT; + reg_data |= HV_SMB_ADDR_PEC_EN | HV_SMB_ADDR_VALID; + ret_val = e1000_write_phy_reg_hv_locked(hw, HV_SMB_ADDR, + reg_data); + if (ret_val) + goto out; + + data = er32(LEDCTL); + ret_val = e1000_write_phy_reg_hv_locked(hw, + HV_LED_CONFIG, + (u16)data); + if (ret_val) + goto out; + } + /* Configure LCD from extended configuration region. */ + + /* cnf_base_addr is in DWORD */ + word_addr = (u16)(cnf_base_addr << 1); + + for (i = 0; i < cnf_size; i++) { + ret_val = e1000_read_nvm(hw, (word_addr + i * 2), 1, + ®_data); + if (ret_val) + goto out; + + ret_val = e1000_read_nvm(hw, (word_addr + i * 2 + 1), + 1, ®_addr); + if (ret_val) + goto out; + + /* Save off the PHY page for future writes. */ + if (reg_addr == IGP01E1000_PHY_PAGE_SELECT) { + phy_page = reg_data; + continue; + } + + reg_addr &= PHY_REG_MASK; + reg_addr |= phy_page; + + ret_val = phy->ops.write_phy_reg_locked(hw, + (u32)reg_addr, + reg_data); + if (ret_val) + goto out; + } + } + +out: + hw->phy.ops.release_phy(hw); + return ret_val; +} + +/** + * e1000_k1_gig_workaround_hv - K1 Si workaround + * @hw: pointer to the HW structure + * @link: link up bool flag + * + * If K1 is enabled for 1Gbps, the MAC might stall when transitioning + * from a lower speed. This workaround disables K1 whenever link is at 1Gig + * If link is down, the function will restore the default K1 setting located + * in the NVM. + **/ +static s32 e1000_k1_gig_workaround_hv(struct e1000_hw *hw, bool link) +{ + s32 ret_val = 0; + u16 status_reg = 0; + bool k1_enable = hw->dev_spec.ich8lan.nvm_k1_enabled; + + if (hw->mac.type != e1000_pchlan) + goto out; + + /* Wrap the whole flow with the sw flag */ + ret_val = hw->phy.ops.acquire_phy(hw); + if (ret_val) + goto out; + + /* Disable K1 when link is 1Gbps, otherwise use the NVM setting */ + if (link) { + if (hw->phy.type == e1000_phy_82578) { + ret_val = hw->phy.ops.read_phy_reg_locked(hw, + BM_CS_STATUS, + &status_reg); + if (ret_val) + goto release; + + status_reg &= BM_CS_STATUS_LINK_UP | + BM_CS_STATUS_RESOLVED | + BM_CS_STATUS_SPEED_MASK; + + if (status_reg == (BM_CS_STATUS_LINK_UP | + BM_CS_STATUS_RESOLVED | + BM_CS_STATUS_SPEED_1000)) + k1_enable = false; + } + + if (hw->phy.type == e1000_phy_82577) { + ret_val = hw->phy.ops.read_phy_reg_locked(hw, + HV_M_STATUS, + &status_reg); + if (ret_val) + goto release; + + status_reg &= HV_M_STATUS_LINK_UP | + HV_M_STATUS_AUTONEG_COMPLETE | + HV_M_STATUS_SPEED_MASK; + + if (status_reg == (HV_M_STATUS_LINK_UP | + HV_M_STATUS_AUTONEG_COMPLETE | + HV_M_STATUS_SPEED_1000)) + k1_enable = false; + } + + /* Link stall fix for link up */ + ret_val = hw->phy.ops.write_phy_reg_locked(hw, PHY_REG(770, 19), + 0x0100); + if (ret_val) + goto release; + + } else { + /* Link stall fix for link down */ + ret_val = hw->phy.ops.write_phy_reg_locked(hw, PHY_REG(770, 19), + 0x4100); + if (ret_val) + goto release; + } + + ret_val = e1000_configure_k1_ich8lan(hw, k1_enable); + +release: + hw->phy.ops.release_phy(hw); +out: + return ret_val; +} + +/** + * e1000_configure_k1_ich8lan - Configure K1 power state + * @hw: pointer to the HW structure + * @enable: K1 state to configure + * + * Configure the K1 power state based on the provided parameter. + * Assumes semaphore already acquired. + * + * Success returns 0, Failure returns -E1000_ERR_PHY (-2) + **/ +static s32 e1000_configure_k1_ich8lan(struct e1000_hw *hw, bool k1_enable) +{ + s32 ret_val = 0; + u32 ctrl_reg = 0; + u32 ctrl_ext = 0; + u32 reg = 0; + u16 kmrn_reg = 0; + + ret_val = e1000e_read_kmrn_reg_locked(hw, + E1000_KMRNCTRLSTA_K1_CONFIG, + &kmrn_reg); + if (ret_val) + goto out; + + if (k1_enable) + kmrn_reg |= E1000_KMRNCTRLSTA_K1_ENABLE; + else + kmrn_reg &= ~E1000_KMRNCTRLSTA_K1_ENABLE; + + ret_val = e1000e_write_kmrn_reg_locked(hw, + E1000_KMRNCTRLSTA_K1_CONFIG, + kmrn_reg); + if (ret_val) + goto out; + + udelay(20); + ctrl_ext = er32(CTRL_EXT); + ctrl_reg = er32(CTRL); + + reg = ctrl_reg & ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100); + reg |= E1000_CTRL_FRCSPD; + ew32(CTRL, reg); + + ew32(CTRL_EXT, ctrl_ext | E1000_CTRL_EXT_SPD_BYPS); + udelay(20); + ew32(CTRL, ctrl_reg); + ew32(CTRL_EXT, ctrl_ext); + udelay(20); + +out: + return ret_val; +} + +/** + * e1000_oem_bits_config_ich8lan - SW-based LCD Configuration + * @hw: pointer to the HW structure + * @d0_state: boolean if entering d0 or d3 device state + * + * SW will configure Gbe Disable and LPLU based on the NVM. The four bits are + * collectively called OEM bits. The OEM Write Enable bit and SW Config bit + * in NVM determines whether HW should configure LPLU and Gbe Disable. + **/ +static s32 e1000_oem_bits_config_ich8lan(struct e1000_hw *hw, bool d0_state) +{ + s32 ret_val = 0; + u32 mac_reg; + u16 oem_reg; + + if (hw->mac.type != e1000_pchlan) + return ret_val; + + ret_val = hw->phy.ops.acquire_phy(hw); + if (ret_val) + return ret_val; + + mac_reg = er32(EXTCNF_CTRL); + if (mac_reg & E1000_EXTCNF_CTRL_OEM_WRITE_ENABLE) + goto out; + + mac_reg = er32(FEXTNVM); + if (!(mac_reg & E1000_FEXTNVM_SW_CONFIG_ICH8M)) + goto out; + + mac_reg = er32(PHY_CTRL); + + ret_val = hw->phy.ops.read_phy_reg_locked(hw, HV_OEM_BITS, &oem_reg); + if (ret_val) + goto out; + + oem_reg &= ~(HV_OEM_BITS_GBE_DIS | HV_OEM_BITS_LPLU); + + if (d0_state) { + if (mac_reg & E1000_PHY_CTRL_GBE_DISABLE) + oem_reg |= HV_OEM_BITS_GBE_DIS; + + if (mac_reg & E1000_PHY_CTRL_D0A_LPLU) + oem_reg |= HV_OEM_BITS_LPLU; + } else { + if (mac_reg & E1000_PHY_CTRL_NOND0A_GBE_DISABLE) + oem_reg |= HV_OEM_BITS_GBE_DIS; + + if (mac_reg & E1000_PHY_CTRL_NOND0A_LPLU) + oem_reg |= HV_OEM_BITS_LPLU; + } + /* Restart auto-neg to activate the bits */ + oem_reg |= HV_OEM_BITS_RESTART_AN; + ret_val = hw->phy.ops.write_phy_reg_locked(hw, HV_OEM_BITS, oem_reg); + +out: + hw->phy.ops.release_phy(hw); + + return ret_val; +} + + +/** * e1000_hv_phy_workarounds_ich8lan - A series of Phy workarounds to be * done after every PHY reset. **/ @@ -833,10 +1168,20 @@ static s32 e1000_hv_phy_workarounds_ich8lan(struct e1000_hw *hw) ret_val = hw->phy.ops.acquire_phy(hw); if (ret_val) return ret_val; + hw->phy.addr = 1; - e1000e_write_phy_reg_mdic(hw, IGP01E1000_PHY_PAGE_SELECT, 0); + ret_val = e1000e_write_phy_reg_mdic(hw, IGP01E1000_PHY_PAGE_SELECT, 0); + if (ret_val) + goto out; hw->phy.ops.release_phy(hw); + /* + * Configure the K1 Si workaround during phy reset assuming there is + * link so that it disables K1 if link is in 1Gbps. + */ + ret_val = e1000_k1_gig_workaround_hv(hw, true); + +out: return ret_val; } @@ -882,11 +1227,8 @@ static void e1000_lan_init_done_ich8lan(struct e1000_hw *hw) **/ static s32 e1000_phy_hw_reset_ich8lan(struct e1000_hw *hw) { - struct e1000_phy_info *phy = &hw->phy; - u32 i; - u32 data, cnf_size, cnf_base_addr, sw_cfg_mask; - s32 ret_val; - u16 reg, word_addr, reg_data, reg_addr, phy_page = 0; + s32 ret_val = 0; + u16 reg; ret_val = e1000e_phy_hw_reset_generic(hw); if (ret_val) @@ -905,81 +1247,16 @@ static s32 e1000_phy_hw_reset_ich8lan(struct e1000_hw *hw) if (hw->mac.type == e1000_pchlan) e1e_rphy(hw, BM_WUC, ®); - /* - * Initialize the PHY from the NVM on ICH platforms. This - * is needed due to an issue where the NVM configuration is - * not properly autoloaded after power transitions. - * Therefore, after each PHY reset, we will load the - * configuration data out of the NVM manually. - */ - if (hw->mac.type == e1000_ich8lan && phy->type == e1000_phy_igp_3) { - struct e1000_adapter *adapter = hw->adapter; - - /* Check if SW needs configure the PHY */ - if ((adapter->pdev->device == E1000_DEV_ID_ICH8_IGP_M_AMT) || - (adapter->pdev->device == E1000_DEV_ID_ICH8_IGP_M)) - sw_cfg_mask = E1000_FEXTNVM_SW_CONFIG_ICH8M; - else - sw_cfg_mask = E1000_FEXTNVM_SW_CONFIG; - - data = er32(FEXTNVM); - if (!(data & sw_cfg_mask)) - return 0; - - /* Wait for basic configuration completes before proceeding */ - e1000_lan_init_done_ich8lan(hw); - - /* - * Make sure HW does not configure LCD from PHY - * extended configuration before SW configuration - */ - data = er32(EXTCNF_CTRL); - if (data & E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE) - return 0; - - cnf_size = er32(EXTCNF_SIZE); - cnf_size &= E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_MASK; - cnf_size >>= E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_SHIFT; - if (!cnf_size) - return 0; - - cnf_base_addr = data & E1000_EXTCNF_CTRL_EXT_CNF_POINTER_MASK; - cnf_base_addr >>= E1000_EXTCNF_CTRL_EXT_CNF_POINTER_SHIFT; - - /* Configure LCD from extended configuration region. */ - - /* cnf_base_addr is in DWORD */ - word_addr = (u16)(cnf_base_addr << 1); - - for (i = 0; i < cnf_size; i++) { - ret_val = e1000_read_nvm(hw, - (word_addr + i * 2), - 1, - ®_data); - if (ret_val) - return ret_val; - - ret_val = e1000_read_nvm(hw, - (word_addr + i * 2 + 1), - 1, - ®_addr); - if (ret_val) - return ret_val; - - /* Save off the PHY page for future writes. */ - if (reg_addr == IGP01E1000_PHY_PAGE_SELECT) { - phy_page = reg_data; - continue; - } - - reg_addr |= phy_page; + /* Configure the LCD with the extended configuration region in NVM */ + ret_val = e1000_sw_lcd_config_ich8lan(hw); + if (ret_val) + goto out; - ret_val = e1e_wphy(hw, (u32)reg_addr, reg_data); - if (ret_val) - return ret_val; - } - } + /* Configure the LCD with the OEM bits in NVM */ + if (hw->mac.type == e1000_pchlan) + ret_val = e1000_oem_bits_config_ich8lan(hw, true); +out: return 0; } @@ -2306,6 +2583,7 @@ static s32 e1000_get_bus_info_ich8lan(struct e1000_hw *hw) **/ static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw) { + struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan; u16 reg; u32 ctrl, icr, kab; s32 ret_val; @@ -2341,6 +2619,18 @@ static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw) ew32(PBS, E1000_PBS_16K); } + if (hw->mac.type == e1000_pchlan) { + /* Save the NVM K1 bit setting*/ + ret_val = e1000_read_nvm(hw, E1000_NVM_K1_CONFIG, 1, ®); + if (ret_val) + return ret_val; + + if (reg & E1000_NVM_K1_ENABLE) + dev_spec->nvm_k1_enabled = true; + else + dev_spec->nvm_k1_enabled = false; + } + ctrl = er32(CTRL); if (!e1000_check_reset_block(hw)) { @@ -2386,6 +2676,15 @@ static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw) if (hw->mac.type == e1000_pchlan) e1e_rphy(hw, BM_WUC, ®); + ret_val = e1000_sw_lcd_config_ich8lan(hw); + if (ret_val) + goto out; + + if (hw->mac.type == e1000_pchlan) { + ret_val = e1000_oem_bits_config_ich8lan(hw, true); + if (ret_val) + goto out; + } /* * For PCH, this write will make sure that any noise * will be detected as a CRC error and be dropped rather than show up @@ -2404,6 +2703,7 @@ static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw) if (hw->mac.type == e1000_pchlan) ret_val = e1000_hv_phy_workarounds_ich8lan(hw); +out: return ret_val; } @@ -2708,14 +3008,6 @@ static s32 e1000_get_link_up_info_ich8lan(struct e1000_hw *hw, u16 *speed, if (ret_val) return ret_val; - if ((hw->mac.type == e1000_pchlan) && (*speed == SPEED_1000)) { - ret_val = e1000e_write_kmrn_reg(hw, - E1000_KMRNCTRLSTA_K1_CONFIG, - E1000_KMRNCTRLSTA_K1_DISABLE); - if (ret_val) - return ret_val; - } - if ((hw->mac.type == e1000_ich8lan) && (hw->phy.type == e1000_phy_igp_3) && (*speed == SPEED_1000)) { diff --git a/drivers/net/e1000e/phy.c b/drivers/net/e1000e/phy.c index f9d33ab..03175b3 100644 --- a/drivers/net/e1000e/phy.c +++ b/drivers/net/e1000e/phy.c @@ -95,13 +95,6 @@ static const u16 e1000_igp_2_cable_length_table[] = /* BM PHY Copper Specific Control 1 */ #define BM_CS_CTRL1 16 -/* BM PHY Copper Specific Status */ -#define BM_CS_STATUS 17 -#define BM_CS_STATUS_LINK_UP 0x0400 -#define BM_CS_STATUS_RESOLVED 0x0800 -#define BM_CS_STATUS_SPEED_MASK 0xC000 -#define BM_CS_STATUS_SPEED_1000 0x8000 - #define HV_MUX_DATA_CTRL PHY_REG(776, 16) #define HV_MUX_DATA_CTRL_GEN_TO_MAC 0x0400 #define HV_MUX_DATA_CTRL_FORCE_SPEED 0x0004 @@ -563,7 +556,7 @@ s32 e1000e_read_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 *data) } /** - * e1000_read_kmrn_reg_locked - Read kumeran register + * e1000e_read_kmrn_reg_locked - Read kumeran register * @hw: pointer to the HW structure * @offset: register offset to be read * @data: pointer to the read data @@ -572,7 +565,7 @@ s32 e1000e_read_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 *data) * information retrieved is stored in data. * Assumes semaphore already acquired. **/ -s32 e1000_read_kmrn_reg_locked(struct e1000_hw *hw, u32 offset, u16 *data) +s32 e1000e_read_kmrn_reg_locked(struct e1000_hw *hw, u32 offset, u16 *data) { return __e1000_read_kmrn_reg(hw, offset, data, true); } @@ -631,7 +624,7 @@ s32 e1000e_write_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 data) } /** - * e1000_write_kmrn_reg_locked - Write kumeran register + * e1000e_write_kmrn_reg_locked - Write kumeran register * @hw: pointer to the HW structure * @offset: register offset to write to * @data: data to write at register offset @@ -639,7 +632,7 @@ s32 e1000e_write_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 data) * Write the data to PHY register at the offset using the kumeran interface. * Assumes semaphore already acquired. **/ -s32 e1000_write_kmrn_reg_locked(struct e1000_hw *hw, u32 offset, u16 data) +s32 e1000e_write_kmrn_reg_locked(struct e1000_hw *hw, u32 offset, u16 data) { return __e1000_write_kmrn_reg(hw, offset, data, true); } diff --git a/drivers/net/pcmcia/pcnet_cs.c b/drivers/net/pcmcia/pcnet_cs.c index bd3447f..94c9ad2 100644 --- a/drivers/net/pcmcia/pcnet_cs.c +++ b/drivers/net/pcmcia/pcnet_cs.c @@ -1760,7 +1760,7 @@ static struct pcmcia_device_id pcnet_ids[] = { PCMCIA_DEVICE_CIS_MANF_CARD(0xc00f, 0x0002, "cis/LA-PCM.cis"), PCMCIA_DEVICE_CIS_PROD_ID12("KTI", "PE520 PLUS", 0xad180345, 0x9d58d392, "PE520.cis"), PCMCIA_DEVICE_CIS_PROD_ID12("NDC", "Ethernet", 0x01c43ae1, 0x00b2e941, "cis/NE2K.cis"), - PCMCIA_DEVICE_CIS_PROD_ID12("PMX ", "PE-200", 0x34f3f1c8, 0x10b59f8c, "PE-200.cis"), + PCMCIA_DEVICE_CIS_PROD_ID12("PMX ", "PE-200", 0x34f3f1c8, 0x10b59f8c, "cis/PE-200.cis"), PCMCIA_DEVICE_CIS_PROD_ID12("TAMARACK", "Ethernet", 0xcf434fba, 0x00b2e941, "cis/tamarack.cis"), PCMCIA_DEVICE_PROD_ID12("Ethernet", "CF Size PC Card", 0x00b2e941, 0x43ac239b), PCMCIA_DEVICE_PROD_ID123("Fast Ethernet", "CF Size PC Card", "1.0", diff --git a/drivers/net/pppox.c b/drivers/net/pppox.c index c14ee24..ac806b2 100644 --- a/drivers/net/pppox.c +++ b/drivers/net/pppox.c @@ -104,7 +104,8 @@ int pppox_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) EXPORT_SYMBOL(pppox_ioctl); -static int pppox_create(struct net *net, struct socket *sock, int protocol) +static int pppox_create(struct net *net, struct socket *sock, int protocol, + int kern) { int rc = -EPROTOTYPE; diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c index 1f7946c..1b0aa4c 100644 --- a/drivers/net/r8169.c +++ b/drivers/net/r8169.c @@ -3379,7 +3379,7 @@ static u16 rtl_rw_cpluscmd(void __iomem *ioaddr) static void rtl_set_rx_max_size(void __iomem *ioaddr, unsigned int rx_buf_sz) { /* Low hurts. Let's disable the filtering. */ - RTL_W16(RxMaxSize, rx_buf_sz); + RTL_W16(RxMaxSize, rx_buf_sz + 1); } static void rtl8169_set_magic_reg(void __iomem *ioaddr, unsigned mac_version) diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index 1729ebf..a3d9991 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -4651,6 +4651,8 @@ static int __devinit sky2_probe(struct pci_dev *pdev, goto err_out_free_netdev; } + netif_carrier_off(dev); + netif_napi_add(dev, &hw->napi, sky2_poll, NAPI_WEIGHT); err = request_irq(pdev->irq, sky2_intr, diff --git a/drivers/net/tokenring/ibmtr.c b/drivers/net/tokenring/ibmtr.c index 525bbc5..6a3c751 100644 --- a/drivers/net/tokenring/ibmtr.c +++ b/drivers/net/tokenring/ibmtr.c @@ -1143,9 +1143,16 @@ static void dir_open_adapter (struct net_device *dev) } else { char **prphase = printphase; char **prerror = printerror; + int pnr = err / 16 - 1; + int enr = err % 16 - 1; DPRINTK("TR Adapter misc open failure, error code = "); - printk("0x%x, Phase: %s, Error: %s\n", - err, prphase[err/16 -1], prerror[err%16 -1]); + if (pnr < 0 || pnr >= ARRAY_SIZE(printphase) || + enr < 0 || + enr >= ARRAY_SIZE(printerror)) + printk("0x%x, invalid Phase/Error.", err); + else + printk("0x%x, Phase: %s, Error: %s\n", err, + prphase[pnr], prerror[enr]); printk(" retrying after %ds delay...\n", TR_RETRY_INTERVAL/HZ); } diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig index c47237c..32d9356 100644 --- a/drivers/net/usb/Kconfig +++ b/drivers/net/usb/Kconfig @@ -174,7 +174,7 @@ config USB_NET_CDCETHER * Ericsson Mobile Broadband Module (all variants) * Motorola (DM100 and SB4100) * Broadcom Cable Modem (reference design) - * Toshiba (PCX1100U and F3507g) + * Toshiba (PCX1100U and F3507g/F3607gw) * ... This driver creates an interface named "ethX", where X depends on diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c index 71e65fc..71d7ff3 100644 --- a/drivers/net/usb/cdc_ether.c +++ b/drivers/net/usb/cdc_ether.c @@ -552,20 +552,60 @@ static const struct usb_device_id products [] = { USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), .driver_info = (unsigned long) &mbm_info, }, { - /* Ericsson F3307 */ + /* Ericsson F3607gw ver 2 */ + USB_DEVICE_AND_INTERFACE_INFO(0x0bdb, 0x1905, USB_CLASS_COMM, + USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), + .driver_info = (unsigned long) &mbm_info, +}, { + /* Ericsson F3607gw ver 3 */ USB_DEVICE_AND_INTERFACE_INFO(0x0bdb, 0x1906, USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), .driver_info = (unsigned long) &mbm_info, }, { + /* Ericsson F3307 */ + USB_DEVICE_AND_INTERFACE_INFO(0x0bdb, 0x190a, USB_CLASS_COMM, + USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), + .driver_info = (unsigned long) &mbm_info, +}, { + /* Ericsson F3307 ver 2 */ + USB_DEVICE_AND_INTERFACE_INFO(0x0bdb, 0x1909, USB_CLASS_COMM, + USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), + .driver_info = (unsigned long) &mbm_info, +}, { + /* Ericsson C3607w */ + USB_DEVICE_AND_INTERFACE_INFO(0x0bdb, 0x1049, USB_CLASS_COMM, + USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), + .driver_info = (unsigned long) &mbm_info, +}, { /* Toshiba F3507g */ USB_DEVICE_AND_INTERFACE_INFO(0x0930, 0x130b, USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), .driver_info = (unsigned long) &mbm_info, }, { + /* Toshiba F3607gw */ + USB_DEVICE_AND_INTERFACE_INFO(0x0930, 0x130c, USB_CLASS_COMM, + USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), + .driver_info = (unsigned long) &mbm_info, +}, { + /* Toshiba F3607gw ver 2 */ + USB_DEVICE_AND_INTERFACE_INFO(0x0930, 0x1311, USB_CLASS_COMM, + USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), + .driver_info = (unsigned long) &mbm_info, +}, { /* Dell F3507g */ USB_DEVICE_AND_INTERFACE_INFO(0x413c, 0x8147, USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), .driver_info = (unsigned long) &mbm_info, +}, { + /* Dell F3607gw */ + USB_DEVICE_AND_INTERFACE_INFO(0x413c, 0x8183, USB_CLASS_COMM, + USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), + .driver_info = (unsigned long) &mbm_info, +}, { + /* Dell F3607gw ver 2 */ + USB_DEVICE_AND_INTERFACE_INFO(0x413c, 0x8184, USB_CLASS_COMM, + USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), + .driver_info = (unsigned long) &mbm_info, }, { }, // END }; diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 9527467..22a8ca5 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -996,7 +996,7 @@ static unsigned int features[] = { VIRTIO_NET_F_CTRL_RX, VIRTIO_NET_F_CTRL_VLAN, }; -static struct virtio_driver virtio_net = { +static struct virtio_driver virtio_net_driver = { .feature_table = features, .feature_table_size = ARRAY_SIZE(features), .driver.name = KBUILD_MODNAME, @@ -1009,12 +1009,12 @@ static struct virtio_driver virtio_net = { static int __init init(void) { - return register_virtio_driver(&virtio_net); + return register_virtio_driver(&virtio_net_driver); } static void __exit fini(void) { - unregister_virtio_driver(&virtio_net); + unregister_virtio_driver(&virtio_net_driver); } module_init(init); module_exit(fini); diff --git a/drivers/net/wimax/i2400m/control.c b/drivers/net/wimax/i2400m/control.c index 0730868..9449455 100644 --- a/drivers/net/wimax/i2400m/control.c +++ b/drivers/net/wimax/i2400m/control.c @@ -54,7 +54,7 @@ * i2400m_set_init_config() * i2400m_cmd_get_state() * i2400m_dev_shutdown() Called by i2400m_dev_stop() - * i2400m->bus_reset() + * i2400m_reset() * * i2400m_{cmd,get,set}_*() * i2400m_msg_to_dev() @@ -82,6 +82,13 @@ #define D_SUBMODULE control #include "debug-levels.h" +int i2400m_passive_mode; /* 0 (passive mode disabled) by default */ +module_param_named(passive_mode, i2400m_passive_mode, int, 0644); +MODULE_PARM_DESC(passive_mode, + "If true, the driver will not do any device setup " + "and leave it up to user space, who must be properly " + "setup."); + /* * Return if a TLV is of a give type and size @@ -263,7 +270,7 @@ int i2400m_msg_check_status(const struct i2400m_l3l4_hdr *l3l4_hdr, if (status == 0) return 0; - if (status > ARRAY_SIZE(ms_to_errno)) { + if (status >= ARRAY_SIZE(ms_to_errno)) { str = "unknown status code"; result = -EBADR; } else { @@ -336,7 +343,7 @@ void i2400m_report_tlv_system_state(struct i2400m *i2400m, /* Huh? just in case, shut it down */ dev_err(dev, "HW BUG? unknown state %u: shutting down\n", i2400m_state); - i2400m->bus_reset(i2400m, I2400M_RT_WARM); + i2400m_reset(i2400m, I2400M_RT_WARM); break; }; d_fnend(3, dev, "(i2400m %p ss %p [%u]) = void\n", @@ -1335,6 +1342,8 @@ int i2400m_dev_initialize(struct i2400m *i2400m) unsigned argc = 0; d_fnstart(3, dev, "(i2400m %p)\n", i2400m); + if (i2400m_passive_mode) + goto out_passive; /* Disable idle mode? (enabled by default) */ if (i2400m_idle_mode_disabled) { if (i2400m_le_v1_3(i2400m)) { @@ -1377,6 +1386,7 @@ int i2400m_dev_initialize(struct i2400m *i2400m) result = i2400m_set_init_config(i2400m, args, argc); if (result < 0) goto error; +out_passive: /* * Update state: Here it just calls a get state; parsing the * result (System State TLV and RF Status TLV [done in the rx diff --git a/drivers/net/wimax/i2400m/debugfs.c b/drivers/net/wimax/i2400m/debugfs.c index 9b81af3..b1aec3e 100644 --- a/drivers/net/wimax/i2400m/debugfs.c +++ b/drivers/net/wimax/i2400m/debugfs.c @@ -214,7 +214,7 @@ int debugfs_i2400m_reset_set(void *data, u64 val) case I2400M_RT_WARM: case I2400M_RT_COLD: case I2400M_RT_BUS: - result = i2400m->bus_reset(i2400m, rt); + result = i2400m_reset(i2400m, rt); if (result >= 0) result = 0; default: diff --git a/drivers/net/wimax/i2400m/driver.c b/drivers/net/wimax/i2400m/driver.c index 304f044..96a615f 100644 --- a/drivers/net/wimax/i2400m/driver.c +++ b/drivers/net/wimax/i2400m/driver.c @@ -41,8 +41,10 @@ * __i2400m_dev_start() * * i2400m_setup() + * i2400m->bus_setup() * i2400m_bootrom_init() * register_netdev() + * wimax_dev_add() * i2400m_dev_start() * __i2400m_dev_start() * i2400m_dev_bootstrap() @@ -50,15 +52,15 @@ * i2400m->bus_dev_start() * i2400m_firmware_check() * i2400m_check_mac_addr() - * wimax_dev_add() * * i2400m_release() - * wimax_dev_rm() * i2400m_dev_stop() * __i2400m_dev_stop() * i2400m_dev_shutdown() * i2400m->bus_dev_stop() * i2400m_tx_release() + * i2400m->bus_release() + * wimax_dev_rm() * unregister_netdev() */ #include "i2400m.h" @@ -66,6 +68,7 @@ #include <linux/wimax/i2400m.h> #include <linux/module.h> #include <linux/moduleparam.h> +#include <linux/suspend.h> #define D_SUBMODULE driver #include "debug-levels.h" @@ -90,76 +93,39 @@ MODULE_PARM_DESC(power_save_disabled, "False by default (so the device is told to do power " "saving)."); -/** - * i2400m_queue_work - schedule work on a i2400m's queue - * - * @i2400m: device descriptor - * - * @fn: function to run to execute work. It gets passed a 'struct - * work_struct' that is wrapped in a 'struct i2400m_work'. Once - * done, you have to (1) i2400m_put(i2400m_work->i2400m) and then - * (2) kfree(i2400m_work). - * - * @gfp_flags: GFP flags for memory allocation. - * - * @pl: pointer to a payload buffer that you want to pass to the _work - * function. Use this to pack (for example) a struct with extra - * arguments. - * - * @pl_size: size of the payload buffer. - * - * We do this quite often, so this just saves typing; allocate a - * wrapper for a i2400m, get a ref to it, pack arguments and launch - * the work. - * - * A usual workflow is: - * - * struct my_work_args { - * void *something; - * int whatever; - * }; - * ... - * - * struct my_work_args my_args = { - * .something = FOO, - * .whaetever = BLAH - * }; - * i2400m_queue_work(i2400m, 1, my_work_function, GFP_KERNEL, - * &args, sizeof(args)) - * - * And now the work function can unpack the arguments and call the - * real function (or do the job itself): - * - * static - * void my_work_fn((struct work_struct *ws) - * { - * struct i2400m_work *iw = - * container_of(ws, struct i2400m_work, ws); - * struct my_work_args *my_args = (void *) iw->pl; - * - * my_work(iw->i2400m, my_args->something, my_args->whatevert); - * } - */ -int i2400m_queue_work(struct i2400m *i2400m, - void (*fn)(struct work_struct *), gfp_t gfp_flags, - const void *pl, size_t pl_size) +static char i2400m_debug_params[128]; +module_param_string(debug, i2400m_debug_params, sizeof(i2400m_debug_params), + 0644); +MODULE_PARM_DESC(debug, + "String of space-separated NAME:VALUE pairs, where NAMEs " + "are the different debug submodules and VALUE are the " + "initial debug value to set."); + +static char i2400m_barkers_params[128]; +module_param_string(barkers, i2400m_barkers_params, + sizeof(i2400m_barkers_params), 0644); +MODULE_PARM_DESC(barkers, + "String of comma-separated 32-bit values; each is " + "recognized as the value the device sends as a reboot " + "signal; values are appended to a list--setting one value " + "as zero cleans the existing list and starts a new one."); + +static +struct i2400m_work *__i2400m_work_setup( + struct i2400m *i2400m, void (*fn)(struct work_struct *), + gfp_t gfp_flags, const void *pl, size_t pl_size) { - int result; struct i2400m_work *iw; - BUG_ON(i2400m->work_queue == NULL); - result = -ENOMEM; iw = kzalloc(sizeof(*iw) + pl_size, gfp_flags); if (iw == NULL) - goto error_kzalloc; + return NULL; iw->i2400m = i2400m_get(i2400m); + iw->pl_size = pl_size; memcpy(iw->pl, pl, pl_size); INIT_WORK(&iw->ws, fn); - result = queue_work(i2400m->work_queue, &iw->ws); -error_kzalloc: - return result; + return iw; } -EXPORT_SYMBOL_GPL(i2400m_queue_work); /* @@ -175,21 +141,19 @@ EXPORT_SYMBOL_GPL(i2400m_queue_work); * it should not happen. */ int i2400m_schedule_work(struct i2400m *i2400m, - void (*fn)(struct work_struct *), gfp_t gfp_flags) + void (*fn)(struct work_struct *), gfp_t gfp_flags, + const void *pl, size_t pl_size) { int result; struct i2400m_work *iw; result = -ENOMEM; - iw = kzalloc(sizeof(*iw), gfp_flags); - if (iw == NULL) - goto error_kzalloc; - iw->i2400m = i2400m_get(i2400m); - INIT_WORK(&iw->ws, fn); - result = schedule_work(&iw->ws); - if (result == 0) - result = -ENXIO; -error_kzalloc: + iw = __i2400m_work_setup(i2400m, fn, gfp_flags, pl, pl_size); + if (iw != NULL) { + result = schedule_work(&iw->ws); + if (WARN_ON(result == 0)) + result = -ENXIO; + } return result; } @@ -291,7 +255,7 @@ int i2400m_op_reset(struct wimax_dev *wimax_dev) mutex_lock(&i2400m->init_mutex); i2400m->reset_ctx = &ctx; mutex_unlock(&i2400m->init_mutex); - result = i2400m->bus_reset(i2400m, I2400M_RT_WARM); + result = i2400m_reset(i2400m, I2400M_RT_WARM); if (result < 0) goto out; result = wait_for_completion_timeout(&ctx.completion, 4*HZ); @@ -420,9 +384,15 @@ retry: dev_err(dev, "cannot create workqueue\n"); goto error_create_workqueue; } - result = i2400m->bus_dev_start(i2400m); - if (result < 0) - goto error_bus_dev_start; + if (i2400m->bus_dev_start) { + result = i2400m->bus_dev_start(i2400m); + if (result < 0) + goto error_bus_dev_start; + } + i2400m->ready = 1; + wmb(); /* see i2400m->ready's documentation */ + /* process pending reports from the device */ + queue_work(i2400m->work_queue, &i2400m->rx_report_ws); result = i2400m_firmware_check(i2400m); /* fw versions ok? */ if (result < 0) goto error_fw_check; @@ -430,8 +400,6 @@ retry: result = i2400m_check_mac_addr(i2400m); if (result < 0) goto error_check_mac_addr; - i2400m->ready = 1; - wimax_state_change(wimax_dev, WIMAX_ST_UNINITIALIZED); result = i2400m_dev_initialize(i2400m); if (result < 0) goto error_dev_initialize; @@ -443,8 +411,12 @@ retry: error_dev_initialize: error_check_mac_addr: + i2400m->ready = 0; + wmb(); /* see i2400m->ready's documentation */ + flush_workqueue(i2400m->work_queue); error_fw_check: - i2400m->bus_dev_stop(i2400m); + if (i2400m->bus_dev_stop) + i2400m->bus_dev_stop(i2400m); error_bus_dev_start: destroy_workqueue(i2400m->work_queue); error_create_workqueue: @@ -466,11 +438,15 @@ error_bootstrap: static int i2400m_dev_start(struct i2400m *i2400m, enum i2400m_bri bm_flags) { - int result; + int result = 0; mutex_lock(&i2400m->init_mutex); /* Well, start the device */ - result = __i2400m_dev_start(i2400m, bm_flags); - if (result >= 0) - i2400m->updown = 1; + if (i2400m->updown == 0) { + result = __i2400m_dev_start(i2400m, bm_flags); + if (result >= 0) { + i2400m->updown = 1; + wmb(); /* see i2400m->updown's documentation */ + } + } mutex_unlock(&i2400m->init_mutex); return result; } @@ -495,9 +471,20 @@ void __i2400m_dev_stop(struct i2400m *i2400m) d_fnstart(3, dev, "(i2400m %p)\n", i2400m); wimax_state_change(wimax_dev, __WIMAX_ST_QUIESCING); + i2400m_msg_to_dev_cancel_wait(i2400m, -EL3RST); + complete(&i2400m->msg_completion); + i2400m_net_wake_stop(i2400m); i2400m_dev_shutdown(i2400m); - i2400m->ready = 0; - i2400m->bus_dev_stop(i2400m); + /* + * Make sure no report hooks are running *before* we stop the + * communication infrastructure with the device. + */ + i2400m->ready = 0; /* nobody can queue work anymore */ + wmb(); /* see i2400m->ready's documentation */ + flush_workqueue(i2400m->work_queue); + + if (i2400m->bus_dev_stop) + i2400m->bus_dev_stop(i2400m); destroy_workqueue(i2400m->work_queue); i2400m_rx_release(i2400m); i2400m_tx_release(i2400m); @@ -518,12 +505,139 @@ void i2400m_dev_stop(struct i2400m *i2400m) if (i2400m->updown) { __i2400m_dev_stop(i2400m); i2400m->updown = 0; + wmb(); /* see i2400m->updown's documentation */ } mutex_unlock(&i2400m->init_mutex); } /* + * Listen to PM events to cache the firmware before suspend/hibernation + * + * When the device comes out of suspend, it might go into reset and + * firmware has to be uploaded again. At resume, most of the times, we + * can't load firmware images from disk, so we need to cache it. + * + * i2400m_fw_cache() will allocate a kobject and attach the firmware + * to it; that way we don't have to worry too much about the fw loader + * hitting a race condition. + * + * Note: modus operandi stolen from the Orinoco driver; thx. + */ +static +int i2400m_pm_notifier(struct notifier_block *notifier, + unsigned long pm_event, + void *unused) +{ + struct i2400m *i2400m = + container_of(notifier, struct i2400m, pm_notifier); + struct device *dev = i2400m_dev(i2400m); + + d_fnstart(3, dev, "(i2400m %p pm_event %lx)\n", i2400m, pm_event); + switch (pm_event) { + case PM_HIBERNATION_PREPARE: + case PM_SUSPEND_PREPARE: + i2400m_fw_cache(i2400m); + break; + case PM_POST_RESTORE: + /* Restore from hibernation failed. We need to clean + * up in exactly the same way, so fall through. */ + case PM_POST_HIBERNATION: + case PM_POST_SUSPEND: + i2400m_fw_uncache(i2400m); + break; + + case PM_RESTORE_PREPARE: + default: + break; + } + d_fnend(3, dev, "(i2400m %p pm_event %lx) = void\n", i2400m, pm_event); + return NOTIFY_DONE; +} + + +/* + * pre-reset is called before a device is going on reset + * + * This has to be followed by a call to i2400m_post_reset(), otherwise + * bad things might happen. + */ +int i2400m_pre_reset(struct i2400m *i2400m) +{ + int result; + struct device *dev = i2400m_dev(i2400m); + + d_fnstart(3, dev, "(i2400m %p)\n", i2400m); + d_printf(1, dev, "pre-reset shut down\n"); + + result = 0; + mutex_lock(&i2400m->init_mutex); + if (i2400m->updown) { + netif_tx_disable(i2400m->wimax_dev.net_dev); + __i2400m_dev_stop(i2400m); + result = 0; + /* down't set updown to zero -- this way + * post_reset can restore properly */ + } + mutex_unlock(&i2400m->init_mutex); + if (i2400m->bus_release) + i2400m->bus_release(i2400m); + d_fnend(3, dev, "(i2400m %p) = %d\n", i2400m, result); + return result; +} +EXPORT_SYMBOL_GPL(i2400m_pre_reset); + + +/* + * Restore device state after a reset + * + * Do the work needed after a device reset to bring it up to the same + * state as it was before the reset. + * + * NOTE: this requires i2400m->init_mutex taken + */ +int i2400m_post_reset(struct i2400m *i2400m) +{ + int result = 0; + struct device *dev = i2400m_dev(i2400m); + + d_fnstart(3, dev, "(i2400m %p)\n", i2400m); + d_printf(1, dev, "post-reset start\n"); + if (i2400m->bus_setup) { + result = i2400m->bus_setup(i2400m); + if (result < 0) { + dev_err(dev, "bus-specific setup failed: %d\n", + result); + goto error_bus_setup; + } + } + mutex_lock(&i2400m->init_mutex); + if (i2400m->updown) { + result = __i2400m_dev_start( + i2400m, I2400M_BRI_SOFT | I2400M_BRI_MAC_REINIT); + if (result < 0) + goto error_dev_start; + } + mutex_unlock(&i2400m->init_mutex); + d_fnend(3, dev, "(i2400m %p) = %d\n", i2400m, result); + return result; + +error_dev_start: + if (i2400m->bus_release) + i2400m->bus_release(i2400m); +error_bus_setup: + /* even if the device was up, it could not be recovered, so we + * mark it as down. */ + i2400m->updown = 0; + wmb(); /* see i2400m->updown's documentation */ + mutex_unlock(&i2400m->init_mutex); + d_fnend(3, dev, "(i2400m %p) = %d\n", i2400m, result); + return result; +} +EXPORT_SYMBOL_GPL(i2400m_post_reset); + + +/* * The device has rebooted; fix up the device and the driver * * Tear down the driver communication with the device, reload the @@ -542,56 +656,69 @@ void i2400m_dev_stop(struct i2400m *i2400m) * _stop()], don't do anything, let it fail and handle it. * * This function is ran always in a thread context + * + * This function gets passed, as payload to i2400m_work() a 'const + * char *' ptr with a "reason" why the reset happened (for messages). */ static void __i2400m_dev_reset_handle(struct work_struct *ws) { int result; struct i2400m_work *iw = container_of(ws, struct i2400m_work, ws); + const char *reason; struct i2400m *i2400m = iw->i2400m; struct device *dev = i2400m_dev(i2400m); - enum wimax_st wimax_state; struct i2400m_reset_ctx *ctx = i2400m->reset_ctx; - d_fnstart(3, dev, "(ws %p i2400m %p)\n", ws, i2400m); + if (WARN_ON(iw->pl_size != sizeof(reason))) + reason = "SW BUG: reason n/a"; + else + memcpy(&reason, iw->pl, sizeof(reason)); + + d_fnstart(3, dev, "(ws %p i2400m %p reason %s)\n", ws, i2400m, reason); + result = 0; if (mutex_trylock(&i2400m->init_mutex) == 0) { /* We are still in i2400m_dev_start() [let it fail] or * i2400m_dev_stop() [we are shutting down anyway, so * ignore it] or we are resetting somewhere else. */ - dev_err(dev, "device rebooted\n"); + dev_err(dev, "device rebooted somewhere else?\n"); i2400m_msg_to_dev_cancel_wait(i2400m, -EL3RST); complete(&i2400m->msg_completion); goto out; } - wimax_state = wimax_state_get(&i2400m->wimax_dev); - if (wimax_state < WIMAX_ST_UNINITIALIZED) { - dev_info(dev, "device rebooted: it is down, ignoring\n"); - goto out_unlock; /* ifconfig up/down wasn't called */ + if (i2400m->updown == 0) { + dev_info(dev, "%s: device is down, doing nothing\n", reason); + goto out_unlock; } - dev_err(dev, "device rebooted: reinitializing driver\n"); + dev_err(dev, "%s: reinitializing driver\n", reason); __i2400m_dev_stop(i2400m); - i2400m->updown = 0; result = __i2400m_dev_start(i2400m, I2400M_BRI_SOFT | I2400M_BRI_MAC_REINIT); if (result < 0) { - dev_err(dev, "device reboot: cannot start the device: %d\n", - result); - result = i2400m->bus_reset(i2400m, I2400M_RT_BUS); - if (result >= 0) - result = -ENODEV; - } else - i2400m->updown = 1; + i2400m->updown = 0; + wmb(); /* see i2400m->updown's documentation */ + dev_err(dev, "%s: cannot start the device: %d\n", + reason, result); + result = -EUCLEAN; + } out_unlock: if (i2400m->reset_ctx) { ctx->result = result; complete(&ctx->completion); } mutex_unlock(&i2400m->init_mutex); + if (result == -EUCLEAN) { + /* ops, need to clean up [w/ init_mutex not held] */ + result = i2400m_reset(i2400m, I2400M_RT_BUS); + if (result >= 0) + result = -ENODEV; + } out: i2400m_put(i2400m); kfree(iw); - d_fnend(3, dev, "(ws %p i2400m %p) = void\n", ws, i2400m); + d_fnend(3, dev, "(ws %p i2400m %p reason %s) = void\n", + ws, i2400m, reason); return; } @@ -608,16 +735,104 @@ out: * reinitializing the driver to handle the reset, calling into the * bus-specific functions ops as needed. */ -int i2400m_dev_reset_handle(struct i2400m *i2400m) +int i2400m_dev_reset_handle(struct i2400m *i2400m, const char *reason) { i2400m->boot_mode = 1; wmb(); /* Make sure i2400m_msg_to_dev() sees boot_mode */ return i2400m_schedule_work(i2400m, __i2400m_dev_reset_handle, - GFP_ATOMIC); + GFP_ATOMIC, &reason, sizeof(reason)); } EXPORT_SYMBOL_GPL(i2400m_dev_reset_handle); +/* + * Alloc the command and ack buffers for boot mode + * + * Get the buffers needed to deal with boot mode messages. These + * buffers need to be allocated before the sdio recieve irq is setup. + */ +static +int i2400m_bm_buf_alloc(struct i2400m *i2400m) +{ + int result; + + result = -ENOMEM; + i2400m->bm_cmd_buf = kzalloc(I2400M_BM_CMD_BUF_SIZE, GFP_KERNEL); + if (i2400m->bm_cmd_buf == NULL) + goto error_bm_cmd_kzalloc; + i2400m->bm_ack_buf = kzalloc(I2400M_BM_ACK_BUF_SIZE, GFP_KERNEL); + if (i2400m->bm_ack_buf == NULL) + goto error_bm_ack_buf_kzalloc; + return 0; + +error_bm_ack_buf_kzalloc: + kfree(i2400m->bm_cmd_buf); +error_bm_cmd_kzalloc: + return result; +} + + +/* + * Free boot mode command and ack buffers. + */ +static +void i2400m_bm_buf_free(struct i2400m *i2400m) +{ + kfree(i2400m->bm_ack_buf); + kfree(i2400m->bm_cmd_buf); +} + + +/** + * i2400m_init - Initialize a 'struct i2400m' from all zeroes + * + * This is a bus-generic API call. + */ +void i2400m_init(struct i2400m *i2400m) +{ + wimax_dev_init(&i2400m->wimax_dev); + + i2400m->boot_mode = 1; + i2400m->rx_reorder = 1; + init_waitqueue_head(&i2400m->state_wq); + + spin_lock_init(&i2400m->tx_lock); + i2400m->tx_pl_min = UINT_MAX; + i2400m->tx_size_min = UINT_MAX; + + spin_lock_init(&i2400m->rx_lock); + i2400m->rx_pl_min = UINT_MAX; + i2400m->rx_size_min = UINT_MAX; + INIT_LIST_HEAD(&i2400m->rx_reports); + INIT_WORK(&i2400m->rx_report_ws, i2400m_report_hook_work); + + mutex_init(&i2400m->msg_mutex); + init_completion(&i2400m->msg_completion); + + mutex_init(&i2400m->init_mutex); + /* wake_tx_ws is initialized in i2400m_tx_setup() */ +} +EXPORT_SYMBOL_GPL(i2400m_init); + + +int i2400m_reset(struct i2400m *i2400m, enum i2400m_reset_type rt) +{ + struct net_device *net_dev = i2400m->wimax_dev.net_dev; + + /* + * Make sure we stop TXs and down the carrier before + * resetting; this is needed to avoid things like + * i2400m_wake_tx() scheduling stuff in parallel. + */ + if (net_dev->reg_state == NETREG_REGISTERED) { + netif_tx_disable(net_dev); + netif_carrier_off(net_dev); + } + return i2400m->bus_reset(i2400m, rt); +} +EXPORT_SYMBOL_GPL(i2400m_reset); + + /** * i2400m_setup - bus-generic setup function for the i2400m device * @@ -625,13 +840,9 @@ EXPORT_SYMBOL_GPL(i2400m_dev_reset_handle); * * Returns: 0 if ok, < 0 errno code on error. * - * Initializes the bus-generic parts of the i2400m driver; the - * bus-specific parts have been initialized, function pointers filled - * out by the bus-specific probe function. - * - * As well, this registers the WiMAX and net device nodes. Once this - * function returns, the device is operative and has to be ready to - * receive and send network traffic and WiMAX control operations. + * Sets up basic device comunication infrastructure, boots the ROM to + * read the MAC address, registers with the WiMAX and network stacks + * and then brings up the device. */ int i2400m_setup(struct i2400m *i2400m, enum i2400m_bri bm_flags) { @@ -645,16 +856,21 @@ int i2400m_setup(struct i2400m *i2400m, enum i2400m_bri bm_flags) snprintf(wimax_dev->name, sizeof(wimax_dev->name), "i2400m-%s:%s", dev->bus->name, dev_name(dev)); - i2400m->bm_cmd_buf = kzalloc(I2400M_BM_CMD_BUF_SIZE, GFP_KERNEL); - if (i2400m->bm_cmd_buf == NULL) { - dev_err(dev, "cannot allocate USB command buffer\n"); - goto error_bm_cmd_kzalloc; + result = i2400m_bm_buf_alloc(i2400m); + if (result < 0) { + dev_err(dev, "cannot allocate bootmode scratch buffers\n"); + goto error_bm_buf_alloc; } - i2400m->bm_ack_buf = kzalloc(I2400M_BM_ACK_BUF_SIZE, GFP_KERNEL); - if (i2400m->bm_ack_buf == NULL) { - dev_err(dev, "cannot allocate USB ack buffer\n"); - goto error_bm_ack_buf_kzalloc; + + if (i2400m->bus_setup) { + result = i2400m->bus_setup(i2400m); + if (result < 0) { + dev_err(dev, "bus-specific setup failed: %d\n", + result); + goto error_bus_setup; + } } + result = i2400m_bootrom_init(i2400m, bm_flags); if (result < 0) { dev_err(dev, "read mac addr: bootrom init " @@ -666,6 +882,9 @@ int i2400m_setup(struct i2400m *i2400m, enum i2400m_bri bm_flags) goto error_read_mac_addr; random_ether_addr(i2400m->src_mac_addr); + i2400m->pm_notifier.notifier_call = i2400m_pm_notifier; + register_pm_notifier(&i2400m->pm_notifier); + result = register_netdev(net_dev); /* Okey dokey, bring it up */ if (result < 0) { dev_err(dev, "cannot register i2400m network device: %d\n", @@ -674,18 +893,13 @@ int i2400m_setup(struct i2400m *i2400m, enum i2400m_bri bm_flags) } netif_carrier_off(net_dev); - result = i2400m_dev_start(i2400m, bm_flags); - if (result < 0) - goto error_dev_start; - i2400m->wimax_dev.op_msg_from_user = i2400m_op_msg_from_user; i2400m->wimax_dev.op_rfkill_sw_toggle = i2400m_op_rfkill_sw_toggle; i2400m->wimax_dev.op_reset = i2400m_op_reset; + result = wimax_dev_add(&i2400m->wimax_dev, net_dev); if (result < 0) goto error_wimax_dev_add; - /* User space needs to do some init stuff */ - wimax_state_change(wimax_dev, WIMAX_ST_UNINITIALIZED); /* Now setup all that requires a registered net and wimax device. */ result = sysfs_create_group(&net_dev->dev.kobj, &i2400m_dev_attr_group); @@ -693,30 +907,37 @@ int i2400m_setup(struct i2400m *i2400m, enum i2400m_bri bm_flags) dev_err(dev, "cannot setup i2400m's sysfs: %d\n", result); goto error_sysfs_setup; } + result = i2400m_debugfs_add(i2400m); if (result < 0) { dev_err(dev, "cannot setup i2400m's debugfs: %d\n", result); goto error_debugfs_setup; } + + result = i2400m_dev_start(i2400m, bm_flags); + if (result < 0) + goto error_dev_start; d_fnend(3, dev, "(i2400m %p) = %d\n", i2400m, result); return result; +error_dev_start: + i2400m_debugfs_rm(i2400m); error_debugfs_setup: sysfs_remove_group(&i2400m->wimax_dev.net_dev->dev.kobj, &i2400m_dev_attr_group); error_sysfs_setup: wimax_dev_rm(&i2400m->wimax_dev); error_wimax_dev_add: - i2400m_dev_stop(i2400m); -error_dev_start: unregister_netdev(net_dev); error_register_netdev: + unregister_pm_notifier(&i2400m->pm_notifier); error_read_mac_addr: error_bootrom_init: - kfree(i2400m->bm_ack_buf); -error_bm_ack_buf_kzalloc: - kfree(i2400m->bm_cmd_buf); -error_bm_cmd_kzalloc: + if (i2400m->bus_release) + i2400m->bus_release(i2400m); +error_bus_setup: + i2400m_bm_buf_free(i2400m); +error_bm_buf_alloc: d_fnend(3, dev, "(i2400m %p) = %d\n", i2400m, result); return result; } @@ -735,14 +956,17 @@ void i2400m_release(struct i2400m *i2400m) d_fnstart(3, dev, "(i2400m %p)\n", i2400m); netif_stop_queue(i2400m->wimax_dev.net_dev); + i2400m_dev_stop(i2400m); + i2400m_debugfs_rm(i2400m); sysfs_remove_group(&i2400m->wimax_dev.net_dev->dev.kobj, &i2400m_dev_attr_group); wimax_dev_rm(&i2400m->wimax_dev); - i2400m_dev_stop(i2400m); unregister_netdev(i2400m->wimax_dev.net_dev); - kfree(i2400m->bm_ack_buf); - kfree(i2400m->bm_cmd_buf); + unregister_pm_notifier(&i2400m->pm_notifier); + if (i2400m->bus_release) + i2400m->bus_release(i2400m); + i2400m_bm_buf_free(i2400m); d_fnend(3, dev, "(i2400m %p) = void\n", i2400m); } EXPORT_SYMBOL_GPL(i2400m_release); @@ -759,6 +983,7 @@ struct d_level D_LEVEL[] = { D_SUBMODULE_DEFINE(netdev), D_SUBMODULE_DEFINE(rfkill), D_SUBMODULE_DEFINE(rx), + D_SUBMODULE_DEFINE(sysfs), D_SUBMODULE_DEFINE(tx), }; size_t D_LEVEL_SIZE = ARRAY_SIZE(D_LEVEL); @@ -767,7 +992,9 @@ size_t D_LEVEL_SIZE = ARRAY_SIZE(D_LEVEL); static int __init i2400m_driver_init(void) { - return 0; + d_parse_params(D_LEVEL, D_LEVEL_SIZE, i2400m_debug_params, + "i2400m.debug"); + return i2400m_barker_db_init(i2400m_barkers_params); } module_init(i2400m_driver_init); @@ -776,6 +1003,7 @@ void __exit i2400m_driver_exit(void) { /* for scheds i2400m_dev_reset_handle() */ flush_scheduled_work(); + i2400m_barker_db_exit(); return; } module_exit(i2400m_driver_exit); diff --git a/drivers/net/wimax/i2400m/fw.c b/drivers/net/wimax/i2400m/fw.c index e81750e..64cdfeb 100644 --- a/drivers/net/wimax/i2400m/fw.c +++ b/drivers/net/wimax/i2400m/fw.c @@ -40,11 +40,9 @@ * * THE PROCEDURE * - * (this is decribed for USB, but for SDIO is similar) - * - * The 2400m works in two modes: boot-mode or normal mode. In boot - * mode we can execute only a handful of commands targeted at - * uploading the firmware and launching it. + * The 2400m and derived devices work in two modes: boot-mode or + * normal mode. In boot mode we can execute only a handful of commands + * targeted at uploading the firmware and launching it. * * The 2400m enters boot mode when it is first connected to the * system, when it crashes and when you ask it to reboot. There are @@ -52,18 +50,26 @@ * firmwares signed with a certain private key, non-signed takes any * firmware. Normal hardware takes only signed firmware. * - * Upon entrance to boot mode, the device sends a few zero length - * packets (ZLPs) on the notification endpoint, then a reboot barker - * (4 le32 words with value I2400M_{S,N}BOOT_BARKER). We ack it by - * sending the same barker on the bulk out endpoint. The device acks - * with a reboot ack barker (4 le32 words with value 0xfeedbabe) and - * then the device is fully rebooted. At this point we can upload the - * firmware. + * On boot mode, in USB, we write to the device using the bulk out + * endpoint and read from it in the notification endpoint. In SDIO we + * talk to it via the write address and read from the read address. + * + * Upon entrance to boot mode, the device sends (preceeded with a few + * zero length packets (ZLPs) on the notification endpoint in USB) a + * reboot barker (4 le32 words with the same value). We ack it by + * sending the same barker to the device. The device acks with a + * reboot ack barker (4 le32 words with value I2400M_ACK_BARKER) and + * then is fully booted. At this point we can upload the firmware. + * + * Note that different iterations of the device and EEPROM + * configurations will send different [re]boot barkers; these are + * collected in i2400m_barker_db along with the firmware + * characteristics they require. * * This process is accomplished by the i2400m_bootrom_init() * function. All the device interaction happens through the * i2400m_bm_cmd() [boot mode command]. Special return values will - * indicate if the device resets. + * indicate if the device did reset during the process. * * After this, we read the MAC address and then (if needed) * reinitialize the device. We need to read it ahead of time because @@ -72,11 +78,11 @@ * * We can then upload the firmware file. The file is composed of a BCF * header (basic data, keys and signatures) and a list of write - * commands and payloads. We first upload the header - * [i2400m_dnload_init()] and then pass the commands and payloads - * verbatim to the i2400m_bm_cmd() function - * [i2400m_dnload_bcf()]. Then we tell the device to jump to the new - * firmware [i2400m_dnload_finalize()]. + * commands and payloads. Optionally more BCF headers might follow the + * main payload. We first upload the header [i2400m_dnload_init()] and + * then pass the commands and payloads verbatim to the i2400m_bm_cmd() + * function [i2400m_dnload_bcf()]. Then we tell the device to jump to + * the new firmware [i2400m_dnload_finalize()]. * * Once firmware is uploaded, we are good to go :) * @@ -99,18 +105,32 @@ * read an acknolwedgement from it (or an asynchronous notification) * from it. * + * FIRMWARE LOADING + * + * Note that in some cases, we can't just load a firmware file (for + * example, when resuming). For that, we might cache the firmware + * file. Thus, when doing the bootstrap, if there is a cache firmware + * file, it is used; if not, loading from disk is attempted. + * * ROADMAP * + * i2400m_barker_db_init Called by i2400m_driver_init() + * i2400m_barker_db_add + * + * i2400m_barker_db_exit Called by i2400m_driver_exit() + * * i2400m_dev_bootstrap Called by __i2400m_dev_start() * request_firmware - * i2400m_fw_check - * i2400m_fw_dnload + * i2400m_fw_bootstrap + * i2400m_fw_check + * i2400m_fw_hdr_check + * i2400m_fw_dnload * release_firmware * * i2400m_fw_dnload * i2400m_bootrom_init * i2400m_bm_cmd - * i2400m->bus_reset + * i2400m_reset * i2400m_dnload_init * i2400m_dnload_init_signed * i2400m_dnload_init_nonsigned @@ -125,9 +145,14 @@ * i2400m->bus_bm_cmd_send() * i2400m->bus_bm_wait_for_ack * __i2400m_bm_ack_verify + * i2400m_is_boot_barker * * i2400m_bm_cmd_prepare Used by bus-drivers to prep * commands before sending + * + * i2400m_pm_notifier Called on Power Management events + * i2400m_fw_cache + * i2400m_fw_uncache */ #include <linux/firmware.h> #include <linux/sched.h> @@ -175,6 +200,240 @@ EXPORT_SYMBOL_GPL(i2400m_bm_cmd_prepare); /* + * Database of known barkers. + * + * A barker is what the device sends indicating he is ready to be + * bootloaded. Different versions of the device will send different + * barkers. Depending on the barker, it might mean the device wants + * some kind of firmware or the other. + */ +static struct i2400m_barker_db { + __le32 data[4]; +} *i2400m_barker_db; +static size_t i2400m_barker_db_used, i2400m_barker_db_size; + + +static +int i2400m_zrealloc_2x(void **ptr, size_t *_count, size_t el_size, + gfp_t gfp_flags) +{ + size_t old_count = *_count, + new_count = old_count ? 2 * old_count : 2, + old_size = el_size * old_count, + new_size = el_size * new_count; + void *nptr = krealloc(*ptr, new_size, gfp_flags); + if (nptr) { + /* zero the other half or the whole thing if old_count + * was zero */ + if (old_size == 0) + memset(nptr, 0, new_size); + else + memset(nptr + old_size, 0, old_size); + *_count = new_count; + *ptr = nptr; + return 0; + } else + return -ENOMEM; +} + + +/* + * Add a barker to the database + * + * This cannot used outside of this module and only at at module_init + * time. This is to avoid the need to do locking. + */ +static +int i2400m_barker_db_add(u32 barker_id) +{ + int result; + + struct i2400m_barker_db *barker; + if (i2400m_barker_db_used >= i2400m_barker_db_size) { + result = i2400m_zrealloc_2x( + (void **) &i2400m_barker_db, &i2400m_barker_db_size, + sizeof(i2400m_barker_db[0]), GFP_KERNEL); + if (result < 0) + return result; + } + barker = i2400m_barker_db + i2400m_barker_db_used++; + barker->data[0] = le32_to_cpu(barker_id); + barker->data[1] = le32_to_cpu(barker_id); + barker->data[2] = le32_to_cpu(barker_id); + barker->data[3] = le32_to_cpu(barker_id); + return 0; +} + + +void i2400m_barker_db_exit(void) +{ + kfree(i2400m_barker_db); + i2400m_barker_db = NULL; + i2400m_barker_db_size = 0; + i2400m_barker_db_used = 0; +} + + +/* + * Helper function to add all the known stable barkers to the barker + * database. + */ +static +int i2400m_barker_db_known_barkers(void) +{ + int result; + + result = i2400m_barker_db_add(I2400M_NBOOT_BARKER); + if (result < 0) + goto error_add; + result = i2400m_barker_db_add(I2400M_SBOOT_BARKER); + if (result < 0) + goto error_add; + result = i2400m_barker_db_add(I2400M_SBOOT_BARKER_6050); + if (result < 0) + goto error_add; +error_add: + return result; +} + + +/* + * Initialize the barker database + * + * This can only be used from the module_init function for this + * module; this is to avoid the need to do locking. + * + * @options: command line argument with extra barkers to + * recognize. This is a comma-separated list of 32-bit hex + * numbers. They are appended to the existing list. Setting 0 + * cleans the existing list and starts a new one. + */ +int i2400m_barker_db_init(const char *_options) +{ + int result; + char *options = NULL, *options_orig, *token; + + i2400m_barker_db = NULL; + i2400m_barker_db_size = 0; + i2400m_barker_db_used = 0; + + result = i2400m_barker_db_known_barkers(); + if (result < 0) + goto error_add; + /* parse command line options from i2400m.barkers */ + if (_options != NULL) { + unsigned barker; + + options_orig = kstrdup(_options, GFP_KERNEL); + if (options_orig == NULL) + goto error_parse; + options = options_orig; + + while ((token = strsep(&options, ",")) != NULL) { + if (*token == '\0') /* eat joint commas */ + continue; + if (sscanf(token, "%x", &barker) != 1 + || barker > 0xffffffff) { + printk(KERN_ERR "%s: can't recognize " + "i2400m.barkers value '%s' as " + "a 32-bit number\n", + __func__, token); + result = -EINVAL; + goto error_parse; + } + if (barker == 0) { + /* clean list and start new */ + i2400m_barker_db_exit(); + continue; + } + result = i2400m_barker_db_add(barker); + if (result < 0) + goto error_add; + } + kfree(options_orig); + } + return 0; + +error_parse: +error_add: + kfree(i2400m_barker_db); + return result; +} + + +/* + * Recognize a boot barker + * + * @buf: buffer where the boot barker. + * @buf_size: size of the buffer (has to be 16 bytes). It is passed + * here so the function can check it for the caller. + * + * Note that as a side effect, upon identifying the obtained boot + * barker, this function will set i2400m->barker to point to the right + * barker database entry. Subsequent calls to the function will result + * in verifying that the same type of boot barker is returned when the + * device [re]boots (as long as the same device instance is used). + * + * Return: 0 if @buf matches a known boot barker. -ENOENT if the + * buffer in @buf doesn't match any boot barker in the database or + * -EILSEQ if the buffer doesn't have the right size. + */ +int i2400m_is_boot_barker(struct i2400m *i2400m, + const void *buf, size_t buf_size) +{ + int result; + struct device *dev = i2400m_dev(i2400m); + struct i2400m_barker_db *barker; + int i; + + result = -ENOENT; + if (buf_size != sizeof(i2400m_barker_db[i].data)) + return result; + + /* Short circuit if we have already discovered the barker + * associated with the device. */ + if (i2400m->barker + && !memcmp(buf, i2400m->barker, sizeof(i2400m->barker->data))) { + unsigned index = (i2400m->barker - i2400m_barker_db) + / sizeof(*i2400m->barker); + d_printf(2, dev, "boot barker cache-confirmed #%u/%08x\n", + index, le32_to_cpu(i2400m->barker->data[0])); + return 0; + } + + for (i = 0; i < i2400m_barker_db_used; i++) { + barker = &i2400m_barker_db[i]; + BUILD_BUG_ON(sizeof(barker->data) != 16); + if (memcmp(buf, barker->data, sizeof(barker->data))) + continue; + + if (i2400m->barker == NULL) { + i2400m->barker = barker; + d_printf(1, dev, "boot barker set to #%u/%08x\n", + i, le32_to_cpu(barker->data[0])); + if (barker->data[0] == le32_to_cpu(I2400M_NBOOT_BARKER)) + i2400m->sboot = 0; + else + i2400m->sboot = 1; + } else if (i2400m->barker != barker) { + dev_err(dev, "HW inconsistency: device " + "reports a different boot barker " + "than set (from %08x to %08x)\n", + le32_to_cpu(i2400m->barker->data[0]), + le32_to_cpu(barker->data[0])); + result = -EIO; + } else + d_printf(2, dev, "boot barker confirmed #%u/%08x\n", + i, le32_to_cpu(barker->data[0])); + result = 0; + break; + } + return result; +} +EXPORT_SYMBOL_GPL(i2400m_is_boot_barker); + + +/* * Verify the ack data received * * Given a reply to a boot mode command, chew it and verify everything @@ -204,20 +463,10 @@ ssize_t __i2400m_bm_ack_verify(struct i2400m *i2400m, int opcode, opcode, ack_size, sizeof(*ack)); goto error_ack_short; } - if (ack_size == sizeof(i2400m_NBOOT_BARKER) - && memcmp(ack, i2400m_NBOOT_BARKER, sizeof(*ack)) == 0) { + result = i2400m_is_boot_barker(i2400m, ack, ack_size); + if (result >= 0) { result = -ERESTARTSYS; - i2400m->sboot = 0; - d_printf(6, dev, "boot-mode cmd %d: " - "HW non-signed boot barker\n", opcode); - goto error_reboot; - } - if (ack_size == sizeof(i2400m_SBOOT_BARKER) - && memcmp(ack, i2400m_SBOOT_BARKER, sizeof(*ack)) == 0) { - result = -ERESTARTSYS; - i2400m->sboot = 1; - d_printf(6, dev, "boot-mode cmd %d: HW signed reboot barker\n", - opcode); + d_printf(6, dev, "boot-mode cmd %d: HW boot barker\n", opcode); goto error_reboot; } if (ack_size == sizeof(i2400m_ACK_BARKER) @@ -343,7 +592,6 @@ ssize_t i2400m_bm_cmd(struct i2400m *i2400m, BUG_ON(i2400m->boot_mode == 0); if (cmd != NULL) { /* send the command */ - memcpy(i2400m->bm_cmd_buf, cmd, cmd_size); result = i2400m->bus_bm_cmd_send(i2400m, cmd, cmd_size, flags); if (result < 0) goto error_cmd_send; @@ -432,8 +680,8 @@ static int i2400m_download_chunk(struct i2400m *i2400m, const void *chunk, * Download a BCF file's sections to the device * * @i2400m: device descriptor - * @bcf: pointer to firmware data (followed by the payloads). Assumed - * verified and consistent. + * @bcf: pointer to firmware data (first header followed by the + * payloads). Assumed verified and consistent. * @bcf_len: length (in bytes) of the @bcf buffer. * * Returns: < 0 errno code on error or the offset to the jump instruction. @@ -472,14 +720,17 @@ ssize_t i2400m_dnload_bcf(struct i2400m *i2400m, "downloading section #%zu (@%zu %zu B) to 0x%08x\n", section, offset, sizeof(*bh) + data_size, le32_to_cpu(bh->target_addr)); - if (i2400m_brh_get_opcode(bh) == I2400M_BRH_SIGNED_JUMP) { - /* Secure boot needs to stop here */ - d_printf(5, dev, "signed jump found @%zu\n", offset); + /* + * We look for JUMP cmd from the bootmode header, + * either I2400M_BRH_SIGNED_JUMP for secure boot + * or I2400M_BRH_JUMP for unsecure boot, the last chunk + * should be the bootmode header with JUMP cmd. + */ + if (i2400m_brh_get_opcode(bh) == I2400M_BRH_SIGNED_JUMP || + i2400m_brh_get_opcode(bh) == I2400M_BRH_JUMP) { + d_printf(5, dev, "jump found @%zu\n", offset); break; } - if (offset + section_size == bcf_len) - /* Non-secure boot stops here */ - break; if (offset + section_size > bcf_len) { dev_err(dev, "fw %s: bad section #%zu, " "end (@%zu) beyond EOF (@%zu)\n", @@ -510,13 +761,30 @@ error_send: /* + * Indicate if the device emitted a reboot barker that indicates + * "signed boot" + */ +static +unsigned i2400m_boot_is_signed(struct i2400m *i2400m) +{ + return likely(i2400m->sboot); +} + + +/* * Do the final steps of uploading firmware * + * @bcf_hdr: BCF header we are actually using + * @bcf: pointer to the firmware image (which matches the first header + * that is followed by the actual payloads). + * @offset: [byte] offset into @bcf for the command we need to send. + * * Depending on the boot mode (signed vs non-signed), different * actions need to be taken. */ static int i2400m_dnload_finalize(struct i2400m *i2400m, + const struct i2400m_bcf_hdr *bcf_hdr, const struct i2400m_bcf_hdr *bcf, size_t offset) { int ret = 0; @@ -530,10 +798,14 @@ int i2400m_dnload_finalize(struct i2400m *i2400m, d_fnstart(3, dev, "offset %zu\n", offset); cmd = (void *) bcf + offset; - if (i2400m->sboot == 0) { + if (i2400m_boot_is_signed(i2400m) == 0) { struct i2400m_bootrom_header jump_ack; d_printf(1, dev, "unsecure boot, jumping to 0x%08x\n", le32_to_cpu(cmd->target_addr)); + cmd_buf = i2400m->bm_cmd_buf; + memcpy(&cmd_buf->cmd, cmd, sizeof(*cmd)); + cmd = &cmd_buf->cmd; + /* now cmd points to the actual bootrom_header in cmd_buf */ i2400m_brh_set_opcode(cmd, I2400M_BRH_JUMP); cmd->data_size = 0; ret = i2400m_bm_cmd(i2400m, cmd, sizeof(*cmd), @@ -544,12 +816,13 @@ int i2400m_dnload_finalize(struct i2400m *i2400m, cmd_buf = i2400m->bm_cmd_buf; memcpy(&cmd_buf->cmd, cmd, sizeof(*cmd)); signature_block_offset = - sizeof(*bcf) - + le32_to_cpu(bcf->key_size) * sizeof(u32) - + le32_to_cpu(bcf->exponent_size) * sizeof(u32); + sizeof(*bcf_hdr) + + le32_to_cpu(bcf_hdr->key_size) * sizeof(u32) + + le32_to_cpu(bcf_hdr->exponent_size) * sizeof(u32); signature_block_size = - le32_to_cpu(bcf->modulus_size) * sizeof(u32); - memcpy(cmd_buf->cmd_pl, (void *) bcf + signature_block_offset, + le32_to_cpu(bcf_hdr->modulus_size) * sizeof(u32); + memcpy(cmd_buf->cmd_pl, + (void *) bcf_hdr + signature_block_offset, signature_block_size); ret = i2400m_bm_cmd(i2400m, &cmd_buf->cmd, sizeof(cmd_buf->cmd) + signature_block_size, @@ -565,7 +838,7 @@ int i2400m_dnload_finalize(struct i2400m *i2400m, * * @i2400m: device descriptor * @flags: - * I2400M_BRI_SOFT: a reboot notification has been seen + * I2400M_BRI_SOFT: a reboot barker has been seen * already, so don't wait for it. * * I2400M_BRI_NO_REBOOT: Don't send a reboot command, but wait @@ -576,17 +849,15 @@ int i2400m_dnload_finalize(struct i2400m *i2400m, * * < 0 errno code on error, 0 if ok. * - * i2400m->sboot set to 0 for unsecure boot process, 1 for secure - * boot process. - * * Description: * * Tries hard enough to put the device in boot-mode. There are two * main phases to this: * * a. (1) send a reboot command and (2) get a reboot barker - * b. (1) ack the reboot sending a reboot barker and (2) getting an - * ack barker in return + * + * b. (1) echo/ack the reboot sending the reboot barker back and (2) + * getting an ack barker in return * * We want to skip (a) in some cases [soft]. The state machine is * horrible, but it is basically: on each phase, send what has to be @@ -594,6 +865,16 @@ int i2400m_dnload_finalize(struct i2400m *i2400m, * have to backtrack and retry, so we keep a max tries counter for * that. * + * It sucks because we don't know ahead of time which is going to be + * the reboot barker (the device might send different ones depending + * on its EEPROM config) and once the device reboots and waits for the + * echo/ack reboot barker being sent back, it doesn't understand + * anything else. So we can be left at the point where we don't know + * what to send to it -- cold reset and bus reset seem to have little + * effect. So the function iterates (in this case) through all the + * known barkers and tries them all until an ACK is + * received. Otherwise, it gives up. + * * If we get a timeout after sending a warm reset, we do it again. */ int i2400m_bootrom_init(struct i2400m *i2400m, enum i2400m_bri flags) @@ -602,10 +883,11 @@ int i2400m_bootrom_init(struct i2400m *i2400m, enum i2400m_bri flags) struct device *dev = i2400m_dev(i2400m); struct i2400m_bootrom_header *cmd; struct i2400m_bootrom_header ack; - int count = I2400M_BOOT_RETRIES; + int count = i2400m->bus_bm_retries; int ack_timeout_cnt = 1; + unsigned i; - BUILD_BUG_ON(sizeof(*cmd) != sizeof(i2400m_NBOOT_BARKER)); + BUILD_BUG_ON(sizeof(*cmd) != sizeof(i2400m_barker_db[0].data)); BUILD_BUG_ON(sizeof(ack) != sizeof(i2400m_ACK_BARKER)); d_fnstart(4, dev, "(i2400m %p flags 0x%08x)\n", i2400m, flags); @@ -614,27 +896,59 @@ int i2400m_bootrom_init(struct i2400m *i2400m, enum i2400m_bri flags) if (flags & I2400M_BRI_SOFT) goto do_reboot_ack; do_reboot: + ack_timeout_cnt = 1; if (--count < 0) goto error_timeout; d_printf(4, dev, "device reboot: reboot command [%d # left]\n", count); if ((flags & I2400M_BRI_NO_REBOOT) == 0) - i2400m->bus_reset(i2400m, I2400M_RT_WARM); + i2400m_reset(i2400m, I2400M_RT_WARM); result = i2400m_bm_cmd(i2400m, NULL, 0, &ack, sizeof(ack), I2400M_BM_CMD_RAW); flags &= ~I2400M_BRI_NO_REBOOT; switch (result) { case -ERESTARTSYS: + /* + * at this point, i2400m_bm_cmd(), through + * __i2400m_bm_ack_process(), has updated + * i2400m->barker and we are good to go. + */ d_printf(4, dev, "device reboot: got reboot barker\n"); break; case -EISCONN: /* we don't know how it got here...but we follow it */ d_printf(4, dev, "device reboot: got ack barker - whatever\n"); goto do_reboot; - case -ETIMEDOUT: /* device has timed out, we might be in boot - * mode already and expecting an ack, let's try - * that */ - dev_info(dev, "warm reset timed out, trying an ack\n"); - goto do_reboot_ack; + case -ETIMEDOUT: + /* + * Device has timed out, we might be in boot mode + * already and expecting an ack; if we don't know what + * the barker is, we just send them all. Cold reset + * and bus reset don't work. Beats me. + */ + if (i2400m->barker != NULL) { + dev_err(dev, "device boot: reboot barker timed out, " + "trying (set) %08x echo/ack\n", + le32_to_cpu(i2400m->barker->data[0])); + goto do_reboot_ack; + } + for (i = 0; i < i2400m_barker_db_used; i++) { + struct i2400m_barker_db *barker = &i2400m_barker_db[i]; + memcpy(cmd, barker->data, sizeof(barker->data)); + result = i2400m_bm_cmd(i2400m, cmd, sizeof(*cmd), + &ack, sizeof(ack), + I2400M_BM_CMD_RAW); + if (result == -EISCONN) { + dev_warn(dev, "device boot: got ack barker " + "after sending echo/ack barker " + "#%d/%08x; rebooting j.i.c.\n", + i, le32_to_cpu(barker->data[0])); + flags &= ~I2400M_BRI_NO_REBOOT; + goto do_reboot; + } + } + dev_err(dev, "device boot: tried all the echo/acks, could " + "not get device to respond; giving up"); + result = -ESHUTDOWN; case -EPROTO: case -ESHUTDOWN: /* dev is gone */ case -EINTR: /* user cancelled */ @@ -642,6 +956,7 @@ do_reboot: default: dev_err(dev, "device reboot: error %d while waiting " "for reboot barker - rebooting\n", result); + d_dump(1, dev, &ack, result); goto do_reboot; } /* At this point we ack back with 4 REBOOT barkers and expect @@ -650,12 +965,7 @@ do_reboot: * notification and report it as -EISCONN. */ do_reboot_ack: d_printf(4, dev, "device reboot ack: sending ack [%d # left]\n", count); - if (i2400m->sboot == 0) - memcpy(cmd, i2400m_NBOOT_BARKER, - sizeof(i2400m_NBOOT_BARKER)); - else - memcpy(cmd, i2400m_SBOOT_BARKER, - sizeof(i2400m_SBOOT_BARKER)); + memcpy(cmd, i2400m->barker->data, sizeof(i2400m->barker->data)); result = i2400m_bm_cmd(i2400m, cmd, sizeof(*cmd), &ack, sizeof(ack), I2400M_BM_CMD_RAW); switch (result) { @@ -668,10 +978,8 @@ do_reboot_ack: d_printf(4, dev, "reboot ack: got ack barker - good\n"); break; case -ETIMEDOUT: /* no response, maybe it is the other type? */ - if (ack_timeout_cnt-- >= 0) { - d_printf(4, dev, "reboot ack timedout: " - "trying the other type?\n"); - i2400m->sboot = !i2400m->sboot; + if (ack_timeout_cnt-- < 0) { + d_printf(4, dev, "reboot ack timedout: retrying\n"); goto do_reboot_ack; } else { dev_err(dev, "reboot ack timedout too long: " @@ -839,32 +1147,29 @@ int i2400m_dnload_init_signed(struct i2400m *i2400m, * (signed or non-signed). */ static -int i2400m_dnload_init(struct i2400m *i2400m, const struct i2400m_bcf_hdr *bcf) +int i2400m_dnload_init(struct i2400m *i2400m, + const struct i2400m_bcf_hdr *bcf_hdr) { int result; struct device *dev = i2400m_dev(i2400m); - u32 module_id = le32_to_cpu(bcf->module_id); - if (i2400m->sboot == 0 - && (module_id & I2400M_BCF_MOD_ID_POKES) == 0) { - /* non-signed boot process without pokes */ - result = i2400m_dnload_init_nonsigned(i2400m); + if (i2400m_boot_is_signed(i2400m)) { + d_printf(1, dev, "signed boot\n"); + result = i2400m_dnload_init_signed(i2400m, bcf_hdr); if (result == -ERESTARTSYS) return result; if (result < 0) - dev_err(dev, "fw %s: non-signed download " + dev_err(dev, "firmware %s: signed boot download " "initialization failed: %d\n", i2400m->fw_name, result); - } else if (i2400m->sboot == 0 - && (module_id & I2400M_BCF_MOD_ID_POKES)) { - /* non-signed boot process with pokes, nothing to do */ - result = 0; - } else { /* signed boot process */ - result = i2400m_dnload_init_signed(i2400m, bcf); + } else { + /* non-signed boot process without pokes */ + d_printf(1, dev, "non-signed boot\n"); + result = i2400m_dnload_init_nonsigned(i2400m); if (result == -ERESTARTSYS) return result; if (result < 0) - dev_err(dev, "fw %s: signed boot download " + dev_err(dev, "firmware %s: non-signed download " "initialization failed: %d\n", i2400m->fw_name, result); } @@ -873,74 +1178,201 @@ int i2400m_dnload_init(struct i2400m *i2400m, const struct i2400m_bcf_hdr *bcf) /* - * Run quick consistency tests on the firmware file + * Run consistency tests on the firmware file and load up headers * * Check for the firmware being made for the i2400m device, * etc...These checks are mostly informative, as the device will make * them too; but the driver's response is more informative on what * went wrong. + * + * This will also look at all the headers present on the firmware + * file, and update i2400m->fw_bcf_hdr to point to them. */ static -int i2400m_fw_check(struct i2400m *i2400m, - const struct i2400m_bcf_hdr *bcf, - size_t bcf_size) +int i2400m_fw_hdr_check(struct i2400m *i2400m, + const struct i2400m_bcf_hdr *bcf_hdr, + size_t index, size_t offset) { - int result; struct device *dev = i2400m_dev(i2400m); + unsigned module_type, header_len, major_version, minor_version, module_id, module_vendor, date, size; - /* Check hard errors */ - result = -EINVAL; - if (bcf_size < sizeof(*bcf)) { /* big enough header? */ - dev_err(dev, "firmware %s too short: " - "%zu B vs %zu (at least) expected\n", - i2400m->fw_name, bcf_size, sizeof(*bcf)); - goto error; - } + module_type = bcf_hdr->module_type; + header_len = sizeof(u32) * le32_to_cpu(bcf_hdr->header_len); + major_version = (le32_to_cpu(bcf_hdr->header_version) & 0xffff0000) + >> 16; + minor_version = le32_to_cpu(bcf_hdr->header_version) & 0x0000ffff; + module_id = le32_to_cpu(bcf_hdr->module_id); + module_vendor = le32_to_cpu(bcf_hdr->module_vendor); + date = le32_to_cpu(bcf_hdr->date); + size = sizeof(u32) * le32_to_cpu(bcf_hdr->size); - module_type = bcf->module_type; - header_len = sizeof(u32) * le32_to_cpu(bcf->header_len); - major_version = le32_to_cpu(bcf->header_version) & 0xffff0000 >> 16; - minor_version = le32_to_cpu(bcf->header_version) & 0x0000ffff; - module_id = le32_to_cpu(bcf->module_id); - module_vendor = le32_to_cpu(bcf->module_vendor); - date = le32_to_cpu(bcf->date); - size = sizeof(u32) * le32_to_cpu(bcf->size); - - if (bcf_size != size) { /* annoyingly paranoid */ - dev_err(dev, "firmware %s: bad size, got " - "%zu B vs %u expected\n", - i2400m->fw_name, bcf_size, size); - goto error; - } + d_printf(1, dev, "firmware %s #%zd@%08zx: BCF header " + "type:vendor:id 0x%x:%x:%x v%u.%u (%u/%u B) built %08x\n", + i2400m->fw_name, index, offset, + module_type, module_vendor, module_id, + major_version, minor_version, header_len, size, date); - d_printf(2, dev, "type 0x%x id 0x%x vendor 0x%x; header v%u.%u (%zu B) " - "date %08x (%zu B)\n", - module_type, module_id, module_vendor, - major_version, minor_version, (size_t) header_len, - date, (size_t) size); + /* Hard errors */ + if (major_version != 1) { + dev_err(dev, "firmware %s #%zd@%08zx: major header version " + "v%u.%u not supported\n", + i2400m->fw_name, index, offset, + major_version, minor_version); + return -EBADF; + } if (module_type != 6) { /* built for the right hardware? */ - dev_err(dev, "bad fw %s: unexpected module type 0x%x; " - "aborting\n", i2400m->fw_name, module_type); - goto error; + dev_err(dev, "firmware %s #%zd@%08zx: unexpected module " + "type 0x%x; aborting\n", + i2400m->fw_name, index, offset, + module_type); + return -EBADF; + } + + if (module_vendor != 0x8086) { + dev_err(dev, "firmware %s #%zd@%08zx: unexpected module " + "vendor 0x%x; aborting\n", + i2400m->fw_name, index, offset, module_vendor); + return -EBADF; } - /* Check soft-er errors */ - result = 0; - if (module_vendor != 0x8086) - dev_err(dev, "bad fw %s? unexpected vendor 0x%04x\n", - i2400m->fw_name, module_vendor); if (date < 0x20080300) - dev_err(dev, "bad fw %s? build date too old %08x\n", - i2400m->fw_name, date); -error: + dev_warn(dev, "firmware %s #%zd@%08zx: build date %08x " + "too old; unsupported\n", + i2400m->fw_name, index, offset, date); + return 0; +} + + +/* + * Run consistency tests on the firmware file and load up headers + * + * Check for the firmware being made for the i2400m device, + * etc...These checks are mostly informative, as the device will make + * them too; but the driver's response is more informative on what + * went wrong. + * + * This will also look at all the headers present on the firmware + * file, and update i2400m->fw_hdrs to point to them. + */ +static +int i2400m_fw_check(struct i2400m *i2400m, const void *bcf, size_t bcf_size) +{ + int result; + struct device *dev = i2400m_dev(i2400m); + size_t headers = 0; + const struct i2400m_bcf_hdr *bcf_hdr; + const void *itr, *next, *top; + size_t slots = 0, used_slots = 0; + + for (itr = bcf, top = itr + bcf_size; + itr < top; + headers++, itr = next) { + size_t leftover, offset, header_len, size; + + leftover = top - itr; + offset = itr - (const void *) bcf; + if (leftover <= sizeof(*bcf_hdr)) { + dev_err(dev, "firmware %s: %zu B left at @%zx, " + "not enough for BCF header\n", + i2400m->fw_name, leftover, offset); + break; + } + bcf_hdr = itr; + /* Only the first header is supposed to be followed by + * payload */ + header_len = sizeof(u32) * le32_to_cpu(bcf_hdr->header_len); + size = sizeof(u32) * le32_to_cpu(bcf_hdr->size); + if (headers == 0) + next = itr + size; + else + next = itr + header_len; + + result = i2400m_fw_hdr_check(i2400m, bcf_hdr, headers, offset); + if (result < 0) + continue; + if (used_slots + 1 >= slots) { + /* +1 -> we need to account for the one we'll + * occupy and at least an extra one for + * always being NULL */ + result = i2400m_zrealloc_2x( + (void **) &i2400m->fw_hdrs, &slots, + sizeof(i2400m->fw_hdrs[0]), + GFP_KERNEL); + if (result < 0) + goto error_zrealloc; + } + i2400m->fw_hdrs[used_slots] = bcf_hdr; + used_slots++; + } + if (headers == 0) { + dev_err(dev, "firmware %s: no usable headers found\n", + i2400m->fw_name); + result = -EBADF; + } else + result = 0; +error_zrealloc: return result; } /* + * Match a barker to a BCF header module ID + * + * The device sends a barker which tells the firmware loader which + * header in the BCF file has to be used. This does the matching. + */ +static +unsigned i2400m_bcf_hdr_match(struct i2400m *i2400m, + const struct i2400m_bcf_hdr *bcf_hdr) +{ + u32 barker = le32_to_cpu(i2400m->barker->data[0]) + & 0x7fffffff; + u32 module_id = le32_to_cpu(bcf_hdr->module_id) + & 0x7fffffff; /* high bit used for something else */ + + /* special case for 5x50 */ + if (barker == I2400M_SBOOT_BARKER && module_id == 0) + return 1; + if (module_id == barker) + return 1; + return 0; +} + +static +const struct i2400m_bcf_hdr *i2400m_bcf_hdr_find(struct i2400m *i2400m) +{ + struct device *dev = i2400m_dev(i2400m); + const struct i2400m_bcf_hdr **bcf_itr, *bcf_hdr; + unsigned i = 0; + u32 barker = le32_to_cpu(i2400m->barker->data[0]); + + d_printf(2, dev, "finding BCF header for barker %08x\n", barker); + if (barker == I2400M_NBOOT_BARKER) { + bcf_hdr = i2400m->fw_hdrs[0]; + d_printf(1, dev, "using BCF header #%u/%08x for non-signed " + "barker\n", 0, le32_to_cpu(bcf_hdr->module_id)); + return bcf_hdr; + } + for (bcf_itr = i2400m->fw_hdrs; *bcf_itr != NULL; bcf_itr++, i++) { + bcf_hdr = *bcf_itr; + if (i2400m_bcf_hdr_match(i2400m, bcf_hdr)) { + d_printf(1, dev, "hit on BCF hdr #%u/%08x\n", + i, le32_to_cpu(bcf_hdr->module_id)); + return bcf_hdr; + } else + d_printf(1, dev, "miss on BCF hdr #%u/%08x\n", + i, le32_to_cpu(bcf_hdr->module_id)); + } + dev_err(dev, "cannot find a matching BCF header for barker %08x\n", + barker); + return NULL; +} + + +/* * Download the firmware to the device * * @i2400m: device descriptor @@ -956,14 +1388,16 @@ error: */ static int i2400m_fw_dnload(struct i2400m *i2400m, const struct i2400m_bcf_hdr *bcf, - size_t bcf_size, enum i2400m_bri flags) + size_t fw_size, enum i2400m_bri flags) { int ret = 0; struct device *dev = i2400m_dev(i2400m); int count = i2400m->bus_bm_retries; + const struct i2400m_bcf_hdr *bcf_hdr; + size_t bcf_size; - d_fnstart(5, dev, "(i2400m %p bcf %p size %zu)\n", - i2400m, bcf, bcf_size); + d_fnstart(5, dev, "(i2400m %p bcf %p fw size %zu)\n", + i2400m, bcf, fw_size); i2400m->boot_mode = 1; wmb(); /* Make sure other readers see it */ hw_reboot: @@ -985,13 +1419,28 @@ hw_reboot: * Initialize the download, push the bytes to the device and * then jump to the new firmware. Note @ret is passed with the * offset of the jump instruction to _dnload_finalize() + * + * Note we need to use the BCF header in the firmware image + * that matches the barker that the device sent when it + * rebooted, so it has to be passed along. */ - ret = i2400m_dnload_init(i2400m, bcf); /* Init device's dnload */ + ret = -EBADF; + bcf_hdr = i2400m_bcf_hdr_find(i2400m); + if (bcf_hdr == NULL) + goto error_bcf_hdr_find; + + ret = i2400m_dnload_init(i2400m, bcf_hdr); if (ret == -ERESTARTSYS) goto error_dev_rebooted; if (ret < 0) goto error_dnload_init; + /* + * bcf_size refers to one header size plus the fw sections size + * indicated by the header,ie. if there are other extended headers + * at the tail, they are not counted + */ + bcf_size = sizeof(u32) * le32_to_cpu(bcf_hdr->size); ret = i2400m_dnload_bcf(i2400m, bcf, bcf_size); if (ret == -ERESTARTSYS) goto error_dev_rebooted; @@ -1001,7 +1450,7 @@ hw_reboot: goto error_dnload_bcf; } - ret = i2400m_dnload_finalize(i2400m, bcf, ret); + ret = i2400m_dnload_finalize(i2400m, bcf_hdr, bcf, ret); if (ret == -ERESTARTSYS) goto error_dev_rebooted; if (ret < 0) { @@ -1018,10 +1467,11 @@ hw_reboot: error_dnload_finalize: error_dnload_bcf: error_dnload_init: +error_bcf_hdr_find: error_bootrom_init: error_too_many_reboots: d_fnend(5, dev, "(i2400m %p bcf %p size %zu) = %d\n", - i2400m, bcf, bcf_size, ret); + i2400m, bcf, fw_size, ret); return ret; error_dev_rebooted: @@ -1031,6 +1481,61 @@ error_dev_rebooted: goto hw_reboot; } +static +int i2400m_fw_bootstrap(struct i2400m *i2400m, const struct firmware *fw, + enum i2400m_bri flags) +{ + int ret; + struct device *dev = i2400m_dev(i2400m); + const struct i2400m_bcf_hdr *bcf; /* Firmware data */ + + d_fnstart(5, dev, "(i2400m %p)\n", i2400m); + bcf = (void *) fw->data; + ret = i2400m_fw_check(i2400m, bcf, fw->size); + if (ret >= 0) + ret = i2400m_fw_dnload(i2400m, bcf, fw->size, flags); + if (ret < 0) + dev_err(dev, "%s: cannot use: %d, skipping\n", + i2400m->fw_name, ret); + kfree(i2400m->fw_hdrs); + i2400m->fw_hdrs = NULL; + d_fnend(5, dev, "(i2400m %p) = %d\n", i2400m, ret); + return ret; +} + + +/* Refcounted container for firmware data */ +struct i2400m_fw { + struct kref kref; + const struct firmware *fw; +}; + + +static +void i2400m_fw_destroy(struct kref *kref) +{ + struct i2400m_fw *i2400m_fw = + container_of(kref, struct i2400m_fw, kref); + release_firmware(i2400m_fw->fw); + kfree(i2400m_fw); +} + + +static +struct i2400m_fw *i2400m_fw_get(struct i2400m_fw *i2400m_fw) +{ + if (i2400m_fw != NULL && i2400m_fw != (void *) ~0) + kref_get(&i2400m_fw->kref); + return i2400m_fw; +} + + +static +void i2400m_fw_put(struct i2400m_fw *i2400m_fw) +{ + kref_put(&i2400m_fw->kref, i2400m_fw_destroy); +} + /** * i2400m_dev_bootstrap - Bring the device to a known state and upload firmware @@ -1049,42 +1554,109 @@ error_dev_rebooted: */ int i2400m_dev_bootstrap(struct i2400m *i2400m, enum i2400m_bri flags) { - int ret = 0, itr = 0; + int ret, itr; struct device *dev = i2400m_dev(i2400m); - const struct firmware *fw; + struct i2400m_fw *i2400m_fw; const struct i2400m_bcf_hdr *bcf; /* Firmware data */ + const struct firmware *fw; const char *fw_name; d_fnstart(5, dev, "(i2400m %p)\n", i2400m); + ret = -ENODEV; + spin_lock(&i2400m->rx_lock); + i2400m_fw = i2400m_fw_get(i2400m->fw_cached); + spin_unlock(&i2400m->rx_lock); + if (i2400m_fw == (void *) ~0) { + dev_err(dev, "can't load firmware now!"); + goto out; + } else if (i2400m_fw != NULL) { + dev_info(dev, "firmware %s: loading from cache\n", + i2400m->fw_name); + ret = i2400m_fw_bootstrap(i2400m, i2400m_fw->fw, flags); + i2400m_fw_put(i2400m_fw); + goto out; + } + /* Load firmware files to memory. */ - itr = 0; - while(1) { + for (itr = 0, bcf = NULL, ret = -ENOENT; ; itr++) { fw_name = i2400m->bus_fw_names[itr]; if (fw_name == NULL) { dev_err(dev, "Could not find a usable firmware image\n"); - ret = -ENOENT; - goto error_no_fw; + break; } + d_printf(1, dev, "trying firmware %s (%d)\n", fw_name, itr); ret = request_firmware(&fw, fw_name, dev); - if (ret == 0) - break; /* got it */ - if (ret < 0) + if (ret < 0) { dev_err(dev, "fw %s: cannot load file: %d\n", fw_name, ret); - itr++; + continue; + } + i2400m->fw_name = fw_name; + ret = i2400m_fw_bootstrap(i2400m, fw, flags); + release_firmware(fw); + if (ret >= 0) /* firmware loaded succesfully */ + break; + i2400m->fw_name = NULL; } - - bcf = (void *) fw->data; - i2400m->fw_name = fw_name; - ret = i2400m_fw_check(i2400m, bcf, fw->size); - if (ret < 0) - goto error_fw_bad; - ret = i2400m_fw_dnload(i2400m, bcf, fw->size, flags); -error_fw_bad: - release_firmware(fw); -error_no_fw: +out: d_fnend(5, dev, "(i2400m %p) = %d\n", i2400m, ret); return ret; } EXPORT_SYMBOL_GPL(i2400m_dev_bootstrap); + + +void i2400m_fw_cache(struct i2400m *i2400m) +{ + int result; + struct i2400m_fw *i2400m_fw; + struct device *dev = i2400m_dev(i2400m); + + /* if there is anything there, free it -- now, this'd be weird */ + spin_lock(&i2400m->rx_lock); + i2400m_fw = i2400m->fw_cached; + spin_unlock(&i2400m->rx_lock); + if (i2400m_fw != NULL && i2400m_fw != (void *) ~0) { + i2400m_fw_put(i2400m_fw); + WARN(1, "%s:%u: still cached fw still present?\n", + __func__, __LINE__); + } + + if (i2400m->fw_name == NULL) { + dev_err(dev, "firmware n/a: can't cache\n"); + i2400m_fw = (void *) ~0; + goto out; + } + + i2400m_fw = kzalloc(sizeof(*i2400m_fw), GFP_ATOMIC); + if (i2400m_fw == NULL) + goto out; + kref_init(&i2400m_fw->kref); + result = request_firmware(&i2400m_fw->fw, i2400m->fw_name, dev); + if (result < 0) { + dev_err(dev, "firmware %s: failed to cache: %d\n", + i2400m->fw_name, result); + kfree(i2400m_fw); + i2400m_fw = (void *) ~0; + } else + dev_info(dev, "firmware %s: cached\n", i2400m->fw_name); +out: + spin_lock(&i2400m->rx_lock); + i2400m->fw_cached = i2400m_fw; + spin_unlock(&i2400m->rx_lock); +} + + +void i2400m_fw_uncache(struct i2400m *i2400m) +{ + struct i2400m_fw *i2400m_fw; + + spin_lock(&i2400m->rx_lock); + i2400m_fw = i2400m->fw_cached; + i2400m->fw_cached = NULL; + spin_unlock(&i2400m->rx_lock); + + if (i2400m_fw != NULL && i2400m_fw != (void *) ~0) + i2400m_fw_put(i2400m_fw); +} + diff --git a/drivers/net/wimax/i2400m/i2400m-sdio.h b/drivers/net/wimax/i2400m/i2400m-sdio.h index 9c4e318..b9c4bed 100644 --- a/drivers/net/wimax/i2400m/i2400m-sdio.h +++ b/drivers/net/wimax/i2400m/i2400m-sdio.h @@ -67,6 +67,7 @@ /* Host-Device interface for SDIO */ enum { + I2400M_SDIO_BOOT_RETRIES = 3, I2400MS_BLK_SIZE = 256, I2400MS_PL_SIZE_MAX = 0x3E00, @@ -77,9 +78,11 @@ enum { I2400MS_INTR_GET_SIZE_ADDR = 0x2C, /* The number of ticks to wait for the device to signal that * it is ready */ - I2400MS_INIT_SLEEP_INTERVAL = 10, + I2400MS_INIT_SLEEP_INTERVAL = 100, /* How long to wait for the device to settle after reset */ I2400MS_SETTLE_TIME = 40, + /* The number of msec to wait for IOR after sending IOE */ + IWMC3200_IOR_TIMEOUT = 10, }; @@ -97,6 +100,14 @@ enum { * @tx_workqueue: workqeueue used for data TX; we don't use the * system's workqueue as that might cause deadlocks with code in * the bus-generic driver. + * + * @debugfs_dentry: dentry for the SDIO specific debugfs files + * + * Note this value is set to NULL upon destruction; this is + * because some routinges use it to determine if we are inside the + * probe() path or some other path. When debugfs is disabled, + * creation sets the dentry to '(void*) -ENODEV', which is valid + * for the test. */ struct i2400ms { struct i2400m i2400m; /* FIRST! See doc */ @@ -111,6 +122,9 @@ struct i2400ms { wait_queue_head_t bm_wfa_wq; int bm_wait_result; size_t bm_ack_size; + + /* Device is any of the iwmc3200 SKUs */ + unsigned iwmc3200:1; }; diff --git a/drivers/net/wimax/i2400m/i2400m-usb.h b/drivers/net/wimax/i2400m/i2400m-usb.h index 6f76558..5cc0f27 100644 --- a/drivers/net/wimax/i2400m/i2400m-usb.h +++ b/drivers/net/wimax/i2400m/i2400m-usb.h @@ -88,6 +88,13 @@ struct edc { u16 errorcount; }; +struct i2400m_endpoint_cfg { + unsigned char bulk_out; + unsigned char notification; + unsigned char reset_cold; + unsigned char bulk_in; +}; + static inline void edc_init(struct edc *edc) { edc->timestart = jiffies; @@ -137,15 +144,13 @@ static inline int edc_inc(struct edc *edc, u16 max_err, u16 timeframe) /* Host-Device interface for USB */ enum { + I2400M_USB_BOOT_RETRIES = 3, I2400MU_MAX_NOTIFICATION_LEN = 256, I2400MU_BLK_SIZE = 16, I2400MU_PL_SIZE_MAX = 0x3EFF, - /* Endpoints */ - I2400MU_EP_BULK_OUT = 0, - I2400MU_EP_NOTIFICATION, - I2400MU_EP_RESET_COLD, - I2400MU_EP_BULK_IN, + /* Device IDs */ + USB_DEVICE_ID_I6050 = 0x0186, }; @@ -215,6 +220,7 @@ struct i2400mu { struct usb_device *usb_dev; struct usb_interface *usb_iface; struct edc urb_edc; /* Error density counter */ + struct i2400m_endpoint_cfg endpoint_cfg; struct urb *notif_urb; struct task_struct *tx_kthread; diff --git a/drivers/net/wimax/i2400m/i2400m.h b/drivers/net/wimax/i2400m/i2400m.h index 60330f3..04df9bb 100644 --- a/drivers/net/wimax/i2400m/i2400m.h +++ b/drivers/net/wimax/i2400m/i2400m.h @@ -117,16 +117,30 @@ * well as i2400m->wimax_dev.net_dev and call i2400m_setup(). The * i2400m driver will only register with the WiMAX and network stacks; * the only access done to the device is to read the MAC address so we - * can register a network device. This calls i2400m_dev_start() to - * load firmware, setup communication with the device and configure it - * for operation. + * can register a network device. * - * At this point, control and data communications are possible. + * The high-level call flow is: + * + * bus_probe() + * i2400m_setup() + * i2400m->bus_setup() + * boot rom initialization / read mac addr + * network / WiMAX stacks registration + * i2400m_dev_start() + * i2400m->bus_dev_start() + * i2400m_dev_initialize() * - * On disconnect/driver unload, the bus-specific disconnect function - * calls i2400m_release() to undo i2400m_setup(). i2400m_dev_stop() - * shuts the firmware down and releases resources uses to communicate - * with the device. + * The reverse applies for a disconnect() call: + * + * bus_disconnect() + * i2400m_release() + * i2400m_dev_stop() + * i2400m_dev_shutdown() + * i2400m->bus_dev_stop() + * network / WiMAX stack unregistration + * i2400m->bus_release() + * + * At this point, control and data communications are possible. * * While the device is up, it might reset. The bus-specific driver has * to catch that situation and call i2400m_dev_reset_handle() to deal @@ -148,9 +162,6 @@ /* Misc constants */ enum { - /* Firmware uploading */ - I2400M_BOOT_RETRIES = 3, - I3200_BOOT_RETRIES = 3, /* Size of the Boot Mode Command buffer */ I2400M_BM_CMD_BUF_SIZE = 16 * 1024, I2400M_BM_ACK_BUF_SIZE = 256, @@ -197,6 +208,7 @@ enum i2400m_reset_type { struct i2400m_reset_ctx; struct i2400m_roq; +struct i2400m_barker_db; /** * struct i2400m - descriptor for an Intel 2400m @@ -204,27 +216,50 @@ struct i2400m_roq; * Members marked with [fill] must be filled out/initialized before * calling i2400m_setup(). * + * Note the @bus_setup/@bus_release, @bus_dev_start/@bus_dev_release + * call pairs are very much doing almost the same, and depending on + * the underlying bus, some stuff has to be put in one or the + * other. The idea of setup/release is that they setup the minimal + * amount needed for loading firmware, where us dev_start/stop setup + * the rest needed to do full data/control traffic. + * * @bus_tx_block_size: [fill] SDIO imposes a 256 block size, USB 16, * so we have a tx_blk_size variable that the bus layer sets to * tell the engine how much of that we need. * * @bus_pl_size_max: [fill] Maximum payload size. * - * @bus_dev_start: [fill] Function called by the bus-generic code - * [i2400m_dev_start()] to setup the bus-specific communications - * to the the device. See LIFE CYCLE above. + * @bus_setup: [optional fill] Function called by the bus-generic code + * [i2400m_setup()] to setup the basic bus-specific communications + * to the the device needed to load firmware. See LIFE CYCLE above. * * NOTE: Doesn't need to upload the firmware, as that is taken * care of by the bus-generic code. * - * @bus_dev_stop: [fill] Function called by the bus-generic code - * [i2400m_dev_stop()] to shutdown the bus-specific communications - * to the the device. See LIFE CYCLE above. + * @bus_release: [optional fill] Function called by the bus-generic + * code [i2400m_release()] to shutdown the basic bus-specific + * communications to the the device needed to load firmware. See + * LIFE CYCLE above. * * This function does not need to reset the device, just tear down * all the host resources created to handle communication with * the device. * + * @bus_dev_start: [optional fill] Function called by the bus-generic + * code [i2400m_dev_start()] to do things needed to start the + * device. See LIFE CYCLE above. + * + * NOTE: Doesn't need to upload the firmware, as that is taken + * care of by the bus-generic code. + * + * @bus_dev_stop: [optional fill] Function called by the bus-generic + * code [i2400m_dev_stop()] to do things needed for stopping the + * device. See LIFE CYCLE above. + * + * This function does not need to reset the device, just tear down + * all the host resources created to handle communication with + * the device. + * * @bus_tx_kick: [fill] Function called by the bus-generic code to let * the bus-specific code know that there is data available in the * TX FIFO for transmission to the device. @@ -246,6 +281,9 @@ struct i2400m_roq; * process, so it cannot rely on common infrastructure being laid * out. * + * IMPORTANT: don't call reset on RT_BUS with i2400m->init_mutex + * held, as the .pre/.post reset handlers will deadlock. + * * @bus_bm_retries: [fill] How many times shall a firmware upload / * device initialization be retried? Different models of the same * device might need different values, hence it is set by the @@ -297,6 +335,27 @@ struct i2400m_roq; * force this to be the first field so that we can get from * netdev_priv() the right pointer. * + * @updown: the device is up and ready for transmitting control and + * data packets. This implies @ready (communication infrastructure + * with the device is ready) and the device's firmware has been + * loaded and the device initialized. + * + * Write to it only inside a i2400m->init_mutex protected area + * followed with a wmb(); rmb() before accesing (unless locked + * inside i2400m->init_mutex). Read access can be loose like that + * [just using rmb()] because the paths that use this also do + * other error checks later on. + * + * @ready: Communication infrastructure with the device is ready, data + * frames can start to be passed around (this is lighter than + * using the WiMAX state for certain hot paths). + * + * Write to it only inside a i2400m->init_mutex protected area + * followed with a wmb(); rmb() before accesing (unless locked + * inside i2400m->init_mutex). Read access can be loose like that + * [just using rmb()] because the paths that use this also do + * other error checks later on. + * * @rx_reorder: 1 if RX reordering is enabled; this can only be * set at probe time. * @@ -362,6 +421,13 @@ struct i2400m_roq; * delivered. Then the driver can release them to the host. See * drivers/net/i2400m/rx.c for details. * + * @rx_reports: reports received from the device that couldn't be + * processed because the driver wasn't still ready; when ready, + * they are pulled from here and chewed. + * + * @rx_reports_ws: Work struct used to kick a scan of the RX reports + * list and to process each. + * * @src_mac_addr: MAC address used to make ethernet packets be coming * from. This is generated at i2400m_setup() time and used during * the life cycle of the instance. See i2400m_fake_eth_header(). @@ -422,6 +488,25 @@ struct i2400m_roq; * * @fw_version: version of the firmware interface, Major.minor, * encoded in the high word and low word (major << 16 | minor). + * + * @fw_hdrs: NULL terminated array of pointers to the firmware + * headers. This is only available during firmware load time. + * + * @fw_cached: Used to cache firmware when the system goes to + * suspend/standby/hibernation (as on resume we can't read it). If + * NULL, no firmware was cached, read it. If ~0, you can't read + * any firmware files (the system still didn't come out of suspend + * and failed to cache one), so abort; otherwise, a valid cached + * firmware to be used. Access to this variable is protected by + * the spinlock i2400m->rx_lock. + * + * @barker: barker type that the device uses; this is initialized by + * i2400m_is_boot_barker() the first time it is called. Then it + * won't change during the life cycle of the device and everytime + * a boot barker is received, it is just verified for it being the + * same. + * + * @pm_notifier: used to register for PM events */ struct i2400m { struct wimax_dev wimax_dev; /* FIRST! See doc */ @@ -429,7 +514,7 @@ struct i2400m { unsigned updown:1; /* Network device is up or down */ unsigned boot_mode:1; /* is the device in boot mode? */ unsigned sboot:1; /* signed or unsigned fw boot */ - unsigned ready:1; /* all probing steps done */ + unsigned ready:1; /* Device comm infrastructure ready */ unsigned rx_reorder:1; /* RX reorder is enabled */ u8 trace_msg_from_user; /* echo rx msgs to 'trace' pipe */ /* typed u8 so /sys/kernel/debug/u8 can tweak */ @@ -440,8 +525,10 @@ struct i2400m { size_t bus_pl_size_max; unsigned bus_bm_retries; + int (*bus_setup)(struct i2400m *); int (*bus_dev_start)(struct i2400m *); void (*bus_dev_stop)(struct i2400m *); + void (*bus_release)(struct i2400m *); void (*bus_tx_kick)(struct i2400m *); int (*bus_reset)(struct i2400m *, enum i2400m_reset_type); ssize_t (*bus_bm_cmd_send)(struct i2400m *, @@ -468,6 +555,8 @@ struct i2400m { rx_num, rx_size_acc, rx_size_min, rx_size_max; struct i2400m_roq *rx_roq; /* not under rx_lock! */ u8 src_mac_addr[ETH_HLEN]; + struct list_head rx_reports; /* under rx_lock! */ + struct work_struct rx_report_ws; struct mutex msg_mutex; /* serialize command execution */ struct completion msg_completion; @@ -487,37 +576,12 @@ struct i2400m { struct dentry *debugfs_dentry; const char *fw_name; /* name of the current firmware image */ unsigned long fw_version; /* version of the firmware interface */ -}; - + const struct i2400m_bcf_hdr **fw_hdrs; + struct i2400m_fw *fw_cached; /* protected by rx_lock */ + struct i2400m_barker_db *barker; -/* - * Initialize a 'struct i2400m' from all zeroes - * - * This is a bus-generic API call. - */ -static inline -void i2400m_init(struct i2400m *i2400m) -{ - wimax_dev_init(&i2400m->wimax_dev); - - i2400m->boot_mode = 1; - i2400m->rx_reorder = 1; - init_waitqueue_head(&i2400m->state_wq); - - spin_lock_init(&i2400m->tx_lock); - i2400m->tx_pl_min = UINT_MAX; - i2400m->tx_size_min = UINT_MAX; - - spin_lock_init(&i2400m->rx_lock); - i2400m->rx_pl_min = UINT_MAX; - i2400m->rx_size_min = UINT_MAX; - - mutex_init(&i2400m->msg_mutex); - init_completion(&i2400m->msg_completion); - - mutex_init(&i2400m->init_mutex); - /* wake_tx_ws is initialized in i2400m_tx_setup() */ -} + struct notifier_block pm_notifier; +}; /* @@ -577,6 +641,14 @@ extern void i2400m_bm_cmd_prepare(struct i2400m_bootrom_header *); extern int i2400m_dev_bootstrap(struct i2400m *, enum i2400m_bri); extern int i2400m_read_mac_addr(struct i2400m *); extern int i2400m_bootrom_init(struct i2400m *, enum i2400m_bri); +extern int i2400m_is_boot_barker(struct i2400m *, const void *, size_t); +static inline +int i2400m_is_d2h_barker(const void *buf) +{ + const __le32 *barker = buf; + return le32_to_cpu(*barker) == I2400M_D2H_MSG_BARKER; +} +extern void i2400m_unknown_barker(struct i2400m *, const void *, size_t); /* Make/grok boot-rom header commands */ @@ -644,6 +716,8 @@ unsigned i2400m_brh_get_signature(const struct i2400m_bootrom_header *hdr) /* * Driver / device setup and internal functions */ +extern void i2400m_init(struct i2400m *); +extern int i2400m_reset(struct i2400m *, enum i2400m_reset_type); extern void i2400m_netdev_setup(struct net_device *net_dev); extern int i2400m_sysfs_setup(struct device_driver *); extern void i2400m_sysfs_release(struct device_driver *); @@ -654,10 +728,14 @@ extern void i2400m_tx_release(struct i2400m *); extern int i2400m_rx_setup(struct i2400m *); extern void i2400m_rx_release(struct i2400m *); +extern void i2400m_fw_cache(struct i2400m *); +extern void i2400m_fw_uncache(struct i2400m *); + extern void i2400m_net_rx(struct i2400m *, struct sk_buff *, unsigned, const void *, int); extern void i2400m_net_erx(struct i2400m *, struct sk_buff *, enum i2400m_cs); +extern void i2400m_net_wake_stop(struct i2400m *); enum i2400m_pt; extern int i2400m_tx(struct i2400m *, const void *, size_t, enum i2400m_pt); @@ -672,14 +750,12 @@ static inline int i2400m_debugfs_add(struct i2400m *i2400m) static inline void i2400m_debugfs_rm(struct i2400m *i2400m) {} #endif -/* Called by _dev_start()/_dev_stop() to initialize the device itself */ +/* Initialize/shutdown the device */ extern int i2400m_dev_initialize(struct i2400m *); extern void i2400m_dev_shutdown(struct i2400m *); extern struct attribute_group i2400m_dev_attr_group; -extern int i2400m_schedule_work(struct i2400m *, - void (*)(struct work_struct *), gfp_t); /* HDI message's payload description handling */ @@ -724,7 +800,9 @@ void i2400m_put(struct i2400m *i2400m) dev_put(i2400m->wimax_dev.net_dev); } -extern int i2400m_dev_reset_handle(struct i2400m *); +extern int i2400m_dev_reset_handle(struct i2400m *, const char *); +extern int i2400m_pre_reset(struct i2400m *); +extern int i2400m_post_reset(struct i2400m *); /* * _setup()/_release() are called by the probe/disconnect functions of @@ -737,20 +815,6 @@ extern int i2400m_rx(struct i2400m *, struct sk_buff *); extern struct i2400m_msg_hdr *i2400m_tx_msg_get(struct i2400m *, size_t *); extern void i2400m_tx_msg_sent(struct i2400m *); -static const __le32 i2400m_NBOOT_BARKER[4] = { - cpu_to_le32(I2400M_NBOOT_BARKER), - cpu_to_le32(I2400M_NBOOT_BARKER), - cpu_to_le32(I2400M_NBOOT_BARKER), - cpu_to_le32(I2400M_NBOOT_BARKER) -}; - -static const __le32 i2400m_SBOOT_BARKER[4] = { - cpu_to_le32(I2400M_SBOOT_BARKER), - cpu_to_le32(I2400M_SBOOT_BARKER), - cpu_to_le32(I2400M_SBOOT_BARKER), - cpu_to_le32(I2400M_SBOOT_BARKER) -}; - extern int i2400m_power_save_disabled; /* @@ -773,10 +837,12 @@ struct device *i2400m_dev(struct i2400m *i2400m) struct i2400m_work { struct work_struct ws; struct i2400m *i2400m; + size_t pl_size; u8 pl[0]; }; -extern int i2400m_queue_work(struct i2400m *, - void (*)(struct work_struct *), gfp_t, + +extern int i2400m_schedule_work(struct i2400m *, + void (*)(struct work_struct *), gfp_t, const void *, size_t); extern int i2400m_msg_check_status(const struct i2400m_l3l4_hdr *, @@ -789,6 +855,7 @@ extern void i2400m_msg_ack_hook(struct i2400m *, const struct i2400m_l3l4_hdr *, size_t); extern void i2400m_report_hook(struct i2400m *, const struct i2400m_l3l4_hdr *, size_t); +extern void i2400m_report_hook_work(struct work_struct *); extern int i2400m_cmd_enter_powersave(struct i2400m *); extern int i2400m_cmd_get_state(struct i2400m *); extern int i2400m_cmd_exit_idle(struct i2400m *); @@ -849,6 +916,12 @@ void __i2400m_msleep(unsigned ms) #endif } + +/* module initialization helpers */ +extern int i2400m_barker_db_init(const char *); +extern void i2400m_barker_db_exit(void); + + /* Module parameters */ extern int i2400m_idle_mode_disabled; diff --git a/drivers/net/wimax/i2400m/netdev.c b/drivers/net/wimax/i2400m/netdev.c index 796396c..599aa4e 100644 --- a/drivers/net/wimax/i2400m/netdev.c +++ b/drivers/net/wimax/i2400m/netdev.c @@ -74,6 +74,7 @@ */ #include <linux/if_arp.h> #include <linux/netdevice.h> +#include <linux/ethtool.h> #include "i2400m.h" @@ -88,7 +89,10 @@ enum { * The MTU is 1400 or less */ I2400M_MAX_MTU = 1400, - I2400M_TX_TIMEOUT = HZ, + /* 20 secs? yep, this is the maximum timeout that the device + * might take to get out of IDLE / negotiate it with the base + * station. We add 1sec for good measure. */ + I2400M_TX_TIMEOUT = 21 * HZ, I2400M_TX_QLEN = 5, }; @@ -101,22 +105,19 @@ int i2400m_open(struct net_device *net_dev) struct device *dev = i2400m_dev(i2400m); d_fnstart(3, dev, "(net_dev %p [i2400m %p])\n", net_dev, i2400m); - if (i2400m->ready == 0) { - dev_err(dev, "Device is still initializing\n"); - result = -EBUSY; - } else + /* Make sure we wait until init is complete... */ + mutex_lock(&i2400m->init_mutex); + if (i2400m->updown) result = 0; + else + result = -EBUSY; + mutex_unlock(&i2400m->init_mutex); d_fnend(3, dev, "(net_dev %p [i2400m %p]) = %d\n", net_dev, i2400m, result); return result; } -/* - * - * On kernel versions where cancel_work_sync() didn't return anything, - * we rely on wake_tx_skb() being non-NULL. - */ static int i2400m_stop(struct net_device *net_dev) { @@ -124,21 +125,7 @@ int i2400m_stop(struct net_device *net_dev) struct device *dev = i2400m_dev(i2400m); d_fnstart(3, dev, "(net_dev %p [i2400m %p])\n", net_dev, i2400m); - /* See i2400m_hard_start_xmit(), references are taken there - * and here we release them if the work was still - * pending. Note we can't differentiate work not pending vs - * never scheduled, so the NULL check does that. */ - if (cancel_work_sync(&i2400m->wake_tx_ws) == 0 - && i2400m->wake_tx_skb != NULL) { - unsigned long flags; - struct sk_buff *wake_tx_skb; - spin_lock_irqsave(&i2400m->tx_lock, flags); - wake_tx_skb = i2400m->wake_tx_skb; /* compat help */ - i2400m->wake_tx_skb = NULL; /* compat help */ - spin_unlock_irqrestore(&i2400m->tx_lock, flags); - i2400m_put(i2400m); - kfree_skb(wake_tx_skb); - } + i2400m_net_wake_stop(i2400m); d_fnend(3, dev, "(net_dev %p [i2400m %p]) = 0\n", net_dev, i2400m); return 0; } @@ -167,6 +154,7 @@ void i2400m_wake_tx_work(struct work_struct *ws) { int result; struct i2400m *i2400m = container_of(ws, struct i2400m, wake_tx_ws); + struct net_device *net_dev = i2400m->wimax_dev.net_dev; struct device *dev = i2400m_dev(i2400m); struct sk_buff *skb = i2400m->wake_tx_skb; unsigned long flags; @@ -182,27 +170,36 @@ void i2400m_wake_tx_work(struct work_struct *ws) dev_err(dev, "WAKE&TX: skb dissapeared!\n"); goto out_put; } + /* If we have, somehow, lost the connection after this was + * queued, don't do anything; this might be the device got + * reset or just disconnected. */ + if (unlikely(!netif_carrier_ok(net_dev))) + goto out_kfree; result = i2400m_cmd_exit_idle(i2400m); if (result == -EILSEQ) result = 0; if (result < 0) { dev_err(dev, "WAKE&TX: device didn't get out of idle: " - "%d\n", result); - goto error; + "%d - resetting\n", result); + i2400m_reset(i2400m, I2400M_RT_BUS); + goto error; } result = wait_event_timeout(i2400m->state_wq, - i2400m->state != I2400M_SS_IDLE, 5 * HZ); + i2400m->state != I2400M_SS_IDLE, + net_dev->watchdog_timeo - HZ/2); if (result == 0) result = -ETIMEDOUT; if (result < 0) { dev_err(dev, "WAKE&TX: error waiting for device to exit IDLE: " - "%d\n", result); + "%d - resetting\n", result); + i2400m_reset(i2400m, I2400M_RT_BUS); goto error; } msleep(20); /* device still needs some time or it drops it */ result = i2400m_tx(i2400m, skb->data, skb->len, I2400M_PT_DATA); - netif_wake_queue(i2400m->wimax_dev.net_dev); error: + netif_wake_queue(net_dev); +out_kfree: kfree_skb(skb); /* refcount transferred by _hard_start_xmit() */ out_put: i2400m_put(i2400m); @@ -229,6 +226,38 @@ void i2400m_tx_prep_header(struct sk_buff *skb) } + +/* + * Cleanup resources acquired during i2400m_net_wake_tx() + * + * This is called by __i2400m_dev_stop and means we have to make sure + * the workqueue is flushed from any pending work. + */ +void i2400m_net_wake_stop(struct i2400m *i2400m) +{ + struct device *dev = i2400m_dev(i2400m); + + d_fnstart(3, dev, "(i2400m %p)\n", i2400m); + /* See i2400m_hard_start_xmit(), references are taken there + * and here we release them if the work was still + * pending. Note we can't differentiate work not pending vs + * never scheduled, so the NULL check does that. */ + if (cancel_work_sync(&i2400m->wake_tx_ws) == 0 + && i2400m->wake_tx_skb != NULL) { + unsigned long flags; + struct sk_buff *wake_tx_skb; + spin_lock_irqsave(&i2400m->tx_lock, flags); + wake_tx_skb = i2400m->wake_tx_skb; /* compat help */ + i2400m->wake_tx_skb = NULL; /* compat help */ + spin_unlock_irqrestore(&i2400m->tx_lock, flags); + i2400m_put(i2400m); + kfree_skb(wake_tx_skb); + } + d_fnend(3, dev, "(i2400m %p) = void\n", i2400m); + return; +} + + /* * TX an skb to an idle device * @@ -342,6 +371,20 @@ netdev_tx_t i2400m_hard_start_xmit(struct sk_buff *skb, int result; d_fnstart(3, dev, "(skb %p net_dev %p)\n", skb, net_dev); + if (skb_header_cloned(skb)) { + /* + * Make tcpdump/wireshark happy -- if they are + * running, the skb is cloned and we will overwrite + * the mac fields in i2400m_tx_prep_header. Expand + * seems to fix this... + */ + result = pskb_expand_head(skb, 0, 0, GFP_ATOMIC); + if (result) { + result = NETDEV_TX_BUSY; + goto error_expand; + } + } + if (i2400m->state == I2400M_SS_IDLE) result = i2400m_net_wake_tx(i2400m, net_dev, skb); else @@ -352,10 +395,11 @@ netdev_tx_t i2400m_hard_start_xmit(struct sk_buff *skb, net_dev->stats.tx_packets++; net_dev->stats.tx_bytes += skb->len; } + result = NETDEV_TX_OK; +error_expand: kfree_skb(skb); - - d_fnend(3, dev, "(skb %p net_dev %p)\n", skb, net_dev); - return NETDEV_TX_OK; + d_fnend(3, dev, "(skb %p net_dev %p) = %d\n", skb, net_dev, result); + return result; } @@ -559,6 +603,22 @@ static const struct net_device_ops i2400m_netdev_ops = { .ndo_change_mtu = i2400m_change_mtu, }; +static void i2400m_get_drvinfo(struct net_device *net_dev, + struct ethtool_drvinfo *info) +{ + struct i2400m *i2400m = net_dev_to_i2400m(net_dev); + + strncpy(info->driver, KBUILD_MODNAME, sizeof(info->driver) - 1); + strncpy(info->fw_version, i2400m->fw_name, sizeof(info->fw_version) - 1); + if (net_dev->dev.parent) + strncpy(info->bus_info, dev_name(net_dev->dev.parent), + sizeof(info->bus_info) - 1); +} + +static const struct ethtool_ops i2400m_ethtool_ops = { + .get_drvinfo = i2400m_get_drvinfo, + .get_link = ethtool_op_get_link, +}; /** * i2400m_netdev_setup - Setup setup @net_dev's i2400m private data @@ -580,6 +640,7 @@ void i2400m_netdev_setup(struct net_device *net_dev) & ~IFF_MULTICAST); net_dev->watchdog_timeo = I2400M_TX_TIMEOUT; net_dev->netdev_ops = &i2400m_netdev_ops; + net_dev->ethtool_ops = &i2400m_ethtool_ops; d_fnend(3, NULL, "(net_dev %p) = void\n", net_dev); } EXPORT_SYMBOL_GPL(i2400m_netdev_setup); diff --git a/drivers/net/wimax/i2400m/rx.c b/drivers/net/wimax/i2400m/rx.c index 07c32e6..e3d2a9d 100644 --- a/drivers/net/wimax/i2400m/rx.c +++ b/drivers/net/wimax/i2400m/rx.c @@ -158,30 +158,104 @@ struct i2400m_report_hook_args { struct sk_buff *skb_rx; const struct i2400m_l3l4_hdr *l3l4_hdr; size_t size; + struct list_head list_node; }; /* * Execute i2400m_report_hook in a workqueue * - * Unpacks arguments from the deferred call, executes it and then - * drops the references. + * Goes over the list of queued reports in i2400m->rx_reports and + * processes them. * - * Obvious NOTE: References are needed because we are a separate - * thread; otherwise the buffer changes under us because it is - * released by the original caller. + * NOTE: refcounts on i2400m are not needed because we flush the + * workqueue this runs on (i2400m->work_queue) before destroying + * i2400m. */ -static void i2400m_report_hook_work(struct work_struct *ws) { - struct i2400m_work *iw = - container_of(ws, struct i2400m_work, ws); - struct i2400m_report_hook_args *args = (void *) iw->pl; - if (iw->i2400m->ready) - i2400m_report_hook(iw->i2400m, args->l3l4_hdr, args->size); - kfree_skb(args->skb_rx); - i2400m_put(iw->i2400m); - kfree(iw); + struct i2400m *i2400m = container_of(ws, struct i2400m, rx_report_ws); + struct device *dev = i2400m_dev(i2400m); + struct i2400m_report_hook_args *args, *args_next; + LIST_HEAD(list); + unsigned long flags; + + while (1) { + spin_lock_irqsave(&i2400m->rx_lock, flags); + list_splice_init(&i2400m->rx_reports, &list); + spin_unlock_irqrestore(&i2400m->rx_lock, flags); + if (list_empty(&list)) + break; + else + d_printf(1, dev, "processing queued reports\n"); + list_for_each_entry_safe(args, args_next, &list, list_node) { + d_printf(2, dev, "processing queued report %p\n", args); + i2400m_report_hook(i2400m, args->l3l4_hdr, args->size); + kfree_skb(args->skb_rx); + list_del(&args->list_node); + kfree(args); + } + } +} + + +/* + * Flush the list of queued reports + */ +static +void i2400m_report_hook_flush(struct i2400m *i2400m) +{ + struct device *dev = i2400m_dev(i2400m); + struct i2400m_report_hook_args *args, *args_next; + LIST_HEAD(list); + unsigned long flags; + + d_printf(1, dev, "flushing queued reports\n"); + spin_lock_irqsave(&i2400m->rx_lock, flags); + list_splice_init(&i2400m->rx_reports, &list); + spin_unlock_irqrestore(&i2400m->rx_lock, flags); + list_for_each_entry_safe(args, args_next, &list, list_node) { + d_printf(2, dev, "flushing queued report %p\n", args); + kfree_skb(args->skb_rx); + list_del(&args->list_node); + kfree(args); + } +} + + +/* + * Queue a report for later processing + * + * @i2400m: device descriptor + * @skb_rx: skb that contains the payload (for reference counting) + * @l3l4_hdr: pointer to the control + * @size: size of the message + */ +static +void i2400m_report_hook_queue(struct i2400m *i2400m, struct sk_buff *skb_rx, + const void *l3l4_hdr, size_t size) +{ + struct device *dev = i2400m_dev(i2400m); + unsigned long flags; + struct i2400m_report_hook_args *args; + + args = kzalloc(sizeof(*args), GFP_NOIO); + if (args) { + args->skb_rx = skb_get(skb_rx); + args->l3l4_hdr = l3l4_hdr; + args->size = size; + spin_lock_irqsave(&i2400m->rx_lock, flags); + list_add_tail(&args->list_node, &i2400m->rx_reports); + spin_unlock_irqrestore(&i2400m->rx_lock, flags); + d_printf(2, dev, "queued report %p\n", args); + rmb(); /* see i2400m->ready's documentation */ + if (likely(i2400m->ready)) /* only send if up */ + queue_work(i2400m->work_queue, &i2400m->rx_report_ws); + } else { + if (printk_ratelimit()) + dev_err(dev, "%s:%u: Can't allocate %zu B\n", + __func__, __LINE__, sizeof(*args)); + } } @@ -295,21 +369,29 @@ void i2400m_rx_ctl(struct i2400m *i2400m, struct sk_buff *skb_rx, msg_type, size); d_dump(2, dev, l3l4_hdr, size); if (msg_type & I2400M_MT_REPORT_MASK) { - /* These hooks have to be ran serialized; as well, the - * handling might force the execution of commands, and - * that might cause reentrancy issues with - * bus-specific subdrivers and workqueues. So we run - * it in a separate workqueue. */ - struct i2400m_report_hook_args args = { - .skb_rx = skb_rx, - .l3l4_hdr = l3l4_hdr, - .size = size - }; - if (unlikely(i2400m->ready == 0)) /* only send if up */ - return; - skb_get(skb_rx); - i2400m_queue_work(i2400m, i2400m_report_hook_work, - GFP_KERNEL, &args, sizeof(args)); + /* + * Process each report + * + * - has to be ran serialized as well + * + * - the handling might force the execution of + * commands. That might cause reentrancy issues with + * bus-specific subdrivers and workqueues, so the we + * run it in a separate workqueue. + * + * - when the driver is not yet ready to handle them, + * they are queued and at some point the queue is + * restarted [NOTE: we can't queue SKBs directly, as + * this might be a piece of a SKB, not the whole + * thing, and this is cheaper than cloning the + * SKB]. + * + * Note we don't do refcounting for the device + * structure; this is because before destroying + * 'i2400m', we make sure to flush the + * i2400m->work_queue, so there are no issues. + */ + i2400m_report_hook_queue(i2400m, skb_rx, l3l4_hdr, size); if (unlikely(i2400m->trace_msg_from_user)) wimax_msg(&i2400m->wimax_dev, "echo", l3l4_hdr, size, GFP_KERNEL); @@ -363,8 +445,6 @@ void i2400m_rx_trace(struct i2400m *i2400m, msg_type & I2400M_MT_REPORT_MASK ? "REPORT" : "CMD/SET/GET", msg_type, size); d_dump(2, dev, l3l4_hdr, size); - if (unlikely(i2400m->ready == 0)) /* only send if up */ - return; result = wimax_msg(wimax_dev, "trace", l3l4_hdr, size, GFP_KERNEL); if (result < 0) dev_err(dev, "error sending trace to userspace: %d\n", @@ -748,7 +828,7 @@ void i2400m_roq_queue(struct i2400m *i2400m, struct i2400m_roq *roq, dev_err(dev, "SW BUG? queue nsn %d (lbn %u ws %u)\n", nsn, lbn, roq->ws); i2400m_roq_log_dump(i2400m, roq); - i2400m->bus_reset(i2400m, I2400M_RT_WARM); + i2400m_reset(i2400m, I2400M_RT_WARM); } else { __i2400m_roq_queue(i2400m, roq, skb, lbn, nsn); i2400m_roq_log_add(i2400m, roq, I2400M_RO_TYPE_PACKET, @@ -814,7 +894,7 @@ void i2400m_roq_queue_update_ws(struct i2400m *i2400m, struct i2400m_roq *roq, dev_err(dev, "SW BUG? queue_update_ws nsn %u (sn %u ws %u)\n", nsn, sn, roq->ws); i2400m_roq_log_dump(i2400m, roq); - i2400m->bus_reset(i2400m, I2400M_RT_WARM); + i2400m_reset(i2400m, I2400M_RT_WARM); } else { /* if the queue is empty, don't bother as we'd queue * it and inmediately unqueue it -- just deliver it */ @@ -1194,6 +1274,28 @@ error_msg_hdr_check: EXPORT_SYMBOL_GPL(i2400m_rx); +void i2400m_unknown_barker(struct i2400m *i2400m, + const void *buf, size_t size) +{ + struct device *dev = i2400m_dev(i2400m); + char prefix[64]; + const __le32 *barker = buf; + dev_err(dev, "RX: HW BUG? unknown barker %08x, " + "dropping %zu bytes\n", le32_to_cpu(*barker), size); + snprintf(prefix, sizeof(prefix), "%s %s: ", + dev_driver_string(dev), dev_name(dev)); + if (size > 64) { + print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET, + 8, 4, buf, 64, 0); + printk(KERN_ERR "%s... (only first 64 bytes " + "dumped)\n", prefix); + } else + print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET, + 8, 4, buf, size, 0); +} +EXPORT_SYMBOL(i2400m_unknown_barker); + + /* * Initialize the RX queue and infrastructure * @@ -1261,4 +1363,6 @@ void i2400m_rx_release(struct i2400m *i2400m) kfree(i2400m->rx_roq[0].log); kfree(i2400m->rx_roq); } + /* at this point, nothing can be received... */ + i2400m_report_hook_flush(i2400m); } diff --git a/drivers/net/wimax/i2400m/sdio-fw.c b/drivers/net/wimax/i2400m/sdio-fw.c index 7d6ec0f..8e02541 100644 --- a/drivers/net/wimax/i2400m/sdio-fw.c +++ b/drivers/net/wimax/i2400m/sdio-fw.c @@ -118,7 +118,8 @@ ssize_t i2400ms_bus_bm_cmd_send(struct i2400m *i2400m, if (cmd_size > I2400M_BM_CMD_BUF_SIZE) goto error_too_big; - memcpy(i2400m->bm_cmd_buf, _cmd, cmd_size); /* Prep command */ + if (_cmd != i2400m->bm_cmd_buf) + memmove(i2400m->bm_cmd_buf, _cmd, cmd_size); cmd = i2400m->bm_cmd_buf; if (cmd_size_a > cmd_size) /* Zero pad space */ memset(i2400m->bm_cmd_buf + cmd_size, 0, cmd_size_a - cmd_size); @@ -177,10 +178,6 @@ ssize_t i2400ms_bus_bm_wait_for_ack(struct i2400m *i2400m, d_fnstart(5, dev, "(i2400m %p ack %p size %zu)\n", i2400m, ack, ack_size); - spin_lock(&i2400m->rx_lock); - i2400ms->bm_ack_size = -EINPROGRESS; - spin_unlock(&i2400m->rx_lock); - result = wait_event_timeout(i2400ms->bm_wfa_wq, i2400ms->bm_ack_size != -EINPROGRESS, 2 * HZ); @@ -199,6 +196,10 @@ ssize_t i2400ms_bus_bm_wait_for_ack(struct i2400m *i2400m, size = min(ack_size, i2400ms->bm_ack_size); memcpy(ack, i2400m->bm_ack_buf, size); } + /* + * Remember always to clear the bm_ack_size to -EINPROGRESS + * after the RX data is processed + */ i2400ms->bm_ack_size = -EINPROGRESS; spin_unlock(&i2400m->rx_lock); diff --git a/drivers/net/wimax/i2400m/sdio-rx.c b/drivers/net/wimax/i2400m/sdio-rx.c index 321bead..8adf6c9 100644 --- a/drivers/net/wimax/i2400m/sdio-rx.c +++ b/drivers/net/wimax/i2400m/sdio-rx.c @@ -53,6 +53,7 @@ * i2400ms_irq() * i2400ms_rx() * __i2400ms_rx_get_size() + * i2400m_is_boot_barker() * i2400m_rx() * * i2400ms_rx_setup() @@ -138,6 +139,11 @@ void i2400ms_rx(struct i2400ms *i2400ms) ret = rx_size; goto error_get_size; } + /* + * Hardware quirk: make sure to clear the INTR status register + * AFTER getting the data transfer size. + */ + sdio_writeb(func, 1, I2400MS_INTR_CLEAR_ADDR, &ret); ret = -ENOMEM; skb = alloc_skb(rx_size, GFP_ATOMIC); @@ -153,25 +159,34 @@ void i2400ms_rx(struct i2400ms *i2400ms) } rmb(); /* make sure we get boot_mode from dev_reset_handle */ - if (i2400m->boot_mode == 1) { + if (unlikely(i2400m->boot_mode == 1)) { spin_lock(&i2400m->rx_lock); i2400ms->bm_ack_size = rx_size; spin_unlock(&i2400m->rx_lock); memcpy(i2400m->bm_ack_buf, skb->data, rx_size); wake_up(&i2400ms->bm_wfa_wq); - dev_err(dev, "RX: SDIO boot mode message\n"); + d_printf(5, dev, "RX: SDIO boot mode message\n"); kfree_skb(skb); - } else if (unlikely(!memcmp(skb->data, i2400m_NBOOT_BARKER, - sizeof(i2400m_NBOOT_BARKER)) - || !memcmp(skb->data, i2400m_SBOOT_BARKER, - sizeof(i2400m_SBOOT_BARKER)))) { - ret = i2400m_dev_reset_handle(i2400m); + goto out; + } + ret = -EIO; + if (unlikely(rx_size < sizeof(__le32))) { + dev_err(dev, "HW BUG? only %zu bytes received\n", rx_size); + goto error_bad_size; + } + if (likely(i2400m_is_d2h_barker(skb->data))) { + skb_put(skb, rx_size); + i2400m_rx(i2400m, skb); + } else if (unlikely(i2400m_is_boot_barker(i2400m, + skb->data, rx_size))) { + ret = i2400m_dev_reset_handle(i2400m, "device rebooted"); dev_err(dev, "RX: SDIO reboot barker\n"); kfree_skb(skb); } else { - skb_put(skb, rx_size); - i2400m_rx(i2400m, skb); + i2400m_unknown_barker(i2400m, skb->data, rx_size); + kfree_skb(skb); } +out: d_fnend(7, dev, "(i2400ms %p) = void\n", i2400ms); return; @@ -179,6 +194,7 @@ error_memcpy_fromio: kfree_skb(skb); error_alloc_skb: error_get_size: +error_bad_size: d_fnend(7, dev, "(i2400ms %p) = %d\n", i2400ms, ret); return; } @@ -209,7 +225,6 @@ void i2400ms_irq(struct sdio_func *func) dev_err(dev, "RX: BUG? got IRQ but no interrupt ready?\n"); goto error_no_irq; } - sdio_writeb(func, 1, I2400MS_INTR_CLEAR_ADDR, &ret); i2400ms_rx(i2400ms); error_no_irq: d_fnend(6, dev, "(i2400ms %p) = void\n", i2400ms); @@ -234,6 +249,13 @@ int i2400ms_rx_setup(struct i2400ms *i2400ms) init_waitqueue_head(&i2400ms->bm_wfa_wq); spin_lock(&i2400m->rx_lock); i2400ms->bm_wait_result = -EINPROGRESS; + /* + * Before we are about to enable the RX interrupt, make sure + * bm_ack_size is cleared to -EINPROGRESS which indicates + * no RX interrupt happened yet or the previous interrupt + * has been handled, we are ready to take the new interrupt + */ + i2400ms->bm_ack_size = -EINPROGRESS; spin_unlock(&i2400m->rx_lock); sdio_claim_host(func); diff --git a/drivers/net/wimax/i2400m/sdio-tx.c b/drivers/net/wimax/i2400m/sdio-tx.c index 5105a5e..de66d06 100644 --- a/drivers/net/wimax/i2400m/sdio-tx.c +++ b/drivers/net/wimax/i2400m/sdio-tx.c @@ -149,5 +149,8 @@ int i2400ms_tx_setup(struct i2400ms *i2400ms) void i2400ms_tx_release(struct i2400ms *i2400ms) { - destroy_workqueue(i2400ms->tx_workqueue); + if (i2400ms->tx_workqueue) { + destroy_workqueue(i2400ms->tx_workqueue); + i2400ms->tx_workqueue = NULL; + } } diff --git a/drivers/net/wimax/i2400m/sdio.c b/drivers/net/wimax/i2400m/sdio.c index 2981e21..76a50ac 100644 --- a/drivers/net/wimax/i2400m/sdio.c +++ b/drivers/net/wimax/i2400m/sdio.c @@ -43,18 +43,9 @@ * i2400m_release() * free_netdev(net_dev) * - * i2400ms_bus_reset() Called by i2400m->bus_reset + * i2400ms_bus_reset() Called by i2400m_reset * __i2400ms_reset() * __i2400ms_send_barker() - * - * i2400ms_bus_dev_start() Called by i2400m_dev_start() [who is - * i2400ms_tx_setup() called by i2400m_setup()] - * i2400ms_rx_setup() - * - * i2400ms_bus_dev_stop() Called by i2400m_dev_stop() [who is - * i2400ms_rx_release() is called by i2400m_release()] - * i2400ms_tx_release() - * */ #include <linux/debugfs.h> @@ -71,6 +62,14 @@ static int ioe_timeout = 2; module_param(ioe_timeout, int, 0); +static char i2400ms_debug_params[128]; +module_param_string(debug, i2400ms_debug_params, sizeof(i2400ms_debug_params), + 0644); +MODULE_PARM_DESC(debug, + "String of space-separated NAME:VALUE pairs, where NAMEs " + "are the different debug submodules and VALUE are the " + "initial debug value to set."); + /* Our firmware file name list */ static const char *i2400ms_bus_fw_names[] = { #define I2400MS_FW_FILE_NAME "i2400m-fw-sdio-1.3.sbcf" @@ -95,17 +94,24 @@ static const struct i2400m_poke_table i2400ms_pokes[] = { * when we ask it to explicitly doing). Tries until a timeout is * reached. * + * The @maxtries argument indicates how many times (at most) it should + * be tried to enable the function. 0 means forever. This acts along + * with the timeout (ie: it'll stop trying as soon as the maximum + * number of tries is reached _or_ as soon as the timeout is reached). + * * The reverse of this is...sdio_disable_function() * * Returns: 0 if the SDIO function was enabled, < 0 errno code on * error (-ENODEV when it was unable to enable the function). */ static -int i2400ms_enable_function(struct sdio_func *func) +int i2400ms_enable_function(struct i2400ms *i2400ms, unsigned maxtries) { + struct sdio_func *func = i2400ms->func; u64 timeout; int err; struct device *dev = &func->dev; + unsigned tries = 0; d_fnstart(3, dev, "(func %p)\n", func); /* Setup timeout (FIXME: This needs to read the CIS table to @@ -115,6 +121,14 @@ int i2400ms_enable_function(struct sdio_func *func) err = -ENODEV; while (err != 0 && time_before64(get_jiffies_64(), timeout)) { sdio_claim_host(func); + /* + * There is a sillicon bug on the IWMC3200, where the + * IOE timeout will cause problems on Moorestown + * platforms (system hang). We explicitly overwrite + * func->enable_timeout here to work around the issue. + */ + if (i2400ms->iwmc3200) + func->enable_timeout = IWMC3200_IOR_TIMEOUT; err = sdio_enable_func(func); if (0 == err) { sdio_release_host(func); @@ -122,8 +136,11 @@ int i2400ms_enable_function(struct sdio_func *func) goto function_enabled; } d_printf(2, dev, "SDIO function failed to enable: %d\n", err); - sdio_disable_func(func); sdio_release_host(func); + if (maxtries > 0 && ++tries >= maxtries) { + err = -ETIME; + break; + } msleep(I2400MS_INIT_SLEEP_INTERVAL); } /* If timed out, device is not there yet -- get -ENODEV so @@ -140,46 +157,99 @@ function_enabled: /* - * Setup driver resources needed to communicate with the device + * Setup minimal device communication infrastructure needed to at + * least be able to update the firmware. * - * The fw needs some time to settle, and it was just uploaded, - * so give it a break first. I'd prefer to just wait for the device to - * send something, but seems the poking we do to enable SDIO stuff - * interferes with it, so just give it a break before starting... + * Note the ugly trick: if we are in the probe path + * (i2400ms->debugfs_dentry == NULL), we only retry function + * enablement one, to avoid racing with the iwmc3200 top controller. */ static -int i2400ms_bus_dev_start(struct i2400m *i2400m) +int i2400ms_bus_setup(struct i2400m *i2400m) { int result; - struct i2400ms *i2400ms = container_of(i2400m, struct i2400ms, i2400m); + struct i2400ms *i2400ms = + container_of(i2400m, struct i2400ms, i2400m); + struct device *dev = i2400m_dev(i2400m); struct sdio_func *func = i2400ms->func; - struct device *dev = &func->dev; + int retries; + + sdio_claim_host(func); + result = sdio_set_block_size(func, I2400MS_BLK_SIZE); + sdio_release_host(func); + if (result < 0) { + dev_err(dev, "Failed to set block size: %d\n", result); + goto error_set_blk_size; + } + + if (i2400ms->iwmc3200 && i2400ms->debugfs_dentry == NULL) + retries = 1; + else + retries = 0; + result = i2400ms_enable_function(i2400ms, retries); + if (result < 0) { + dev_err(dev, "Cannot enable SDIO function: %d\n", result); + goto error_func_enable; + } - d_fnstart(3, dev, "(i2400m %p)\n", i2400m); - msleep(200); result = i2400ms_tx_setup(i2400ms); if (result < 0) goto error_tx_setup; - d_fnend(3, dev, "(i2400m %p) = %d\n", i2400m, result); - return result; + result = i2400ms_rx_setup(i2400ms); + if (result < 0) + goto error_rx_setup; + return 0; -error_tx_setup: +error_rx_setup: i2400ms_tx_release(i2400ms); - d_fnend(3, dev, "(i2400m %p) = void\n", i2400m); +error_tx_setup: + sdio_claim_host(func); + sdio_disable_func(func); + sdio_release_host(func); +error_func_enable: +error_set_blk_size: return result; } +/* + * Tear down minimal device communication infrastructure needed to at + * least be able to update the firmware. + */ +static +void i2400ms_bus_release(struct i2400m *i2400m) +{ + struct i2400ms *i2400ms = + container_of(i2400m, struct i2400ms, i2400m); + struct sdio_func *func = i2400ms->func; + + i2400ms_rx_release(i2400ms); + i2400ms_tx_release(i2400ms); + sdio_claim_host(func); + sdio_disable_func(func); + sdio_release_host(func); +} + + +/* + * Setup driver resources needed to communicate with the device + * + * The fw needs some time to settle, and it was just uploaded, + * so give it a break first. I'd prefer to just wait for the device to + * send something, but seems the poking we do to enable SDIO stuff + * interferes with it, so just give it a break before starting... + */ static -void i2400ms_bus_dev_stop(struct i2400m *i2400m) +int i2400ms_bus_dev_start(struct i2400m *i2400m) { struct i2400ms *i2400ms = container_of(i2400m, struct i2400ms, i2400m); struct sdio_func *func = i2400ms->func; struct device *dev = &func->dev; d_fnstart(3, dev, "(i2400m %p)\n", i2400m); - i2400ms_tx_release(i2400ms); - d_fnend(3, dev, "(i2400m %p) = void\n", i2400m); + msleep(200); + d_fnend(3, dev, "(i2400m %p) = %d\n", i2400m, 0); + return 0; } @@ -233,18 +303,17 @@ error_kzalloc: * Warm reset: * * The device will be fully reset internally, but won't be - * disconnected from the USB bus (so no reenumeration will + * disconnected from the bus (so no reenumeration will * happen). Firmware upload will be neccessary. * - * The device will send a reboot barker in the notification endpoint - * that will trigger the driver to reinitialize the state - * automatically from notif.c:i2400m_notification_grok() into - * i2400m_dev_bootstrap_delayed(). + * The device will send a reboot barker that will trigger the driver + * to reinitialize the state via __i2400m_dev_reset_handle. * - * Cold and bus (USB) reset: + * + * Cold and bus reset: * * The device will be fully reset internally, disconnected from the - * USB bus an a reenumeration will happen. Firmware upload will be + * bus an a reenumeration will happen. Firmware upload will be * neccessary. Thus, we don't do any locking or struct * reinitialization, as we are going to be fully disconnected and * reenumerated. @@ -283,25 +352,13 @@ int i2400ms_bus_reset(struct i2400m *i2400m, enum i2400m_reset_type rt) sizeof(i2400m_COLD_BOOT_BARKER)); else if (rt == I2400M_RT_BUS) { do_bus_reset: - /* call netif_tx_disable() before sending IOE disable, - * so that all the tx from network layer are stopped - * while IOE is being reset. Make sure it is called - * only after register_netdev() was issued. - */ - if (i2400m->wimax_dev.net_dev->reg_state == NETREG_REGISTERED) - netif_tx_disable(i2400m->wimax_dev.net_dev); - i2400ms_rx_release(i2400ms); - sdio_claim_host(i2400ms->func); - sdio_disable_func(i2400ms->func); - sdio_release_host(i2400ms->func); + i2400ms_bus_release(i2400m); /* Wait for the device to settle */ msleep(40); - result = i2400ms_enable_function(i2400ms->func); - if (result >= 0) - i2400ms_rx_setup(i2400ms); + result = i2400ms_bus_setup(i2400m); } else BUG(); if (result < 0 && rt != I2400M_RT_BUS) { @@ -350,7 +407,7 @@ int i2400ms_debugfs_add(struct i2400ms *i2400ms) int result; struct dentry *dentry = i2400ms->i2400m.wimax_dev.debugfs_dentry; - dentry = debugfs_create_dir("i2400m-usb", dentry); + dentry = debugfs_create_dir("i2400m-sdio", dentry); result = PTR_ERR(dentry); if (IS_ERR(dentry)) { if (result == -ENODEV) @@ -367,6 +424,7 @@ int i2400ms_debugfs_add(struct i2400ms *i2400ms) error: debugfs_remove_recursive(i2400ms->debugfs_dentry); + i2400ms->debugfs_dentry = NULL; return result; } @@ -425,37 +483,30 @@ int i2400ms_probe(struct sdio_func *func, i2400m->bus_tx_block_size = I2400MS_BLK_SIZE; i2400m->bus_pl_size_max = I2400MS_PL_SIZE_MAX; + i2400m->bus_setup = i2400ms_bus_setup; i2400m->bus_dev_start = i2400ms_bus_dev_start; - i2400m->bus_dev_stop = i2400ms_bus_dev_stop; + i2400m->bus_dev_stop = NULL; + i2400m->bus_release = i2400ms_bus_release; i2400m->bus_tx_kick = i2400ms_bus_tx_kick; i2400m->bus_reset = i2400ms_bus_reset; /* The iwmc3200-wimax sometimes requires the driver to try * hard when we paint it into a corner. */ - i2400m->bus_bm_retries = I3200_BOOT_RETRIES; + i2400m->bus_bm_retries = I2400M_SDIO_BOOT_RETRIES; i2400m->bus_bm_cmd_send = i2400ms_bus_bm_cmd_send; i2400m->bus_bm_wait_for_ack = i2400ms_bus_bm_wait_for_ack; i2400m->bus_fw_names = i2400ms_bus_fw_names; i2400m->bus_bm_mac_addr_impaired = 1; i2400m->bus_bm_pokes_table = &i2400ms_pokes[0]; - sdio_claim_host(func); - result = sdio_set_block_size(func, I2400MS_BLK_SIZE); - sdio_release_host(func); - if (result < 0) { - dev_err(dev, "Failed to set block size: %d\n", result); - goto error_set_blk_size; - } - - result = i2400ms_enable_function(i2400ms->func); - if (result < 0) { - dev_err(dev, "Cannot enable SDIO function: %d\n", result); - goto error_func_enable; + switch (func->device) { + case SDIO_DEVICE_ID_INTEL_IWMC3200WIMAX: + case SDIO_DEVICE_ID_INTEL_IWMC3200WIMAX_2G5: + i2400ms->iwmc3200 = 1; + break; + default: + i2400ms->iwmc3200 = 0; } - result = i2400ms_rx_setup(i2400ms); - if (result < 0) - goto error_rx_setup; - result = i2400m_setup(i2400m, I2400M_BRI_NO_REBOOT); if (result < 0) { dev_err(dev, "cannot setup device: %d\n", result); @@ -473,13 +524,6 @@ int i2400ms_probe(struct sdio_func *func, error_debugfs_add: i2400m_release(i2400m); error_setup: - i2400ms_rx_release(i2400ms); -error_rx_setup: - sdio_claim_host(func); - sdio_disable_func(func); - sdio_release_host(func); -error_func_enable: -error_set_blk_size: sdio_set_drvdata(func, NULL); free_netdev(net_dev); error_alloc_netdev: @@ -497,12 +541,9 @@ void i2400ms_remove(struct sdio_func *func) d_fnstart(3, dev, "SDIO func %p\n", func); debugfs_remove_recursive(i2400ms->debugfs_dentry); - i2400ms_rx_release(i2400ms); + i2400ms->debugfs_dentry = NULL; i2400m_release(i2400m); sdio_set_drvdata(func, NULL); - sdio_claim_host(func); - sdio_disable_func(func); - sdio_release_host(func); free_netdev(net_dev); d_fnend(3, dev, "SDIO func %p\n", func); } @@ -512,6 +553,8 @@ const struct sdio_device_id i2400ms_sdio_ids[] = { /* Intel: i2400m WiMAX (iwmc3200) over SDIO */ { SDIO_DEVICE(SDIO_VENDOR_ID_INTEL, SDIO_DEVICE_ID_INTEL_IWMC3200WIMAX) }, + { SDIO_DEVICE(SDIO_VENDOR_ID_INTEL, + SDIO_DEVICE_ID_INTEL_IWMC3200WIMAX_2G5) }, { /* end: all zeroes */ }, }; MODULE_DEVICE_TABLE(sdio, i2400ms_sdio_ids); @@ -529,6 +572,8 @@ struct sdio_driver i2400m_sdio_driver = { static int __init i2400ms_driver_init(void) { + d_parse_params(D_LEVEL, D_LEVEL_SIZE, i2400ms_debug_params, + "i2400m_sdio.debug"); return sdio_register_driver(&i2400m_sdio_driver); } module_init(i2400ms_driver_init); diff --git a/drivers/net/wimax/i2400m/tx.c b/drivers/net/wimax/i2400m/tx.c index fa16ccf..54480e8 100644 --- a/drivers/net/wimax/i2400m/tx.c +++ b/drivers/net/wimax/i2400m/tx.c @@ -310,7 +310,7 @@ size_t __i2400m_tx_tail_room(struct i2400m *i2400m) size_t tail_room; size_t tx_in; - if (unlikely(i2400m->tx_in) == 0) + if (unlikely(i2400m->tx_in == 0)) return I2400M_TX_BUF_SIZE; tx_in = i2400m->tx_in % I2400M_TX_BUF_SIZE; tail_room = I2400M_TX_BUF_SIZE - tx_in; @@ -642,6 +642,9 @@ int i2400m_tx(struct i2400m *i2400m, const void *buf, size_t buf_len, * current one is out of payload slots or we have a singleton, * close it and start a new one */ spin_lock_irqsave(&i2400m->tx_lock, flags); + result = -ESHUTDOWN; + if (i2400m->tx_buf == NULL) + goto error_tx_new; try_new: if (unlikely(i2400m->tx_msg == NULL)) i2400m_tx_new(i2400m); @@ -697,7 +700,10 @@ try_new: } error_tx_new: spin_unlock_irqrestore(&i2400m->tx_lock, flags); - i2400m->bus_tx_kick(i2400m); /* always kick, might free up space */ + /* kick in most cases, except when the TX subsys is down, as + * it might free space */ + if (likely(result != -ESHUTDOWN)) + i2400m->bus_tx_kick(i2400m); d_fnend(3, dev, "(i2400m %p skb %p [%zu bytes] pt %u) = %d\n", i2400m, buf, buf_len, pl_type, result); return result; @@ -740,6 +746,9 @@ struct i2400m_msg_hdr *i2400m_tx_msg_get(struct i2400m *i2400m, d_fnstart(3, dev, "(i2400m %p bus_size %p)\n", i2400m, bus_size); spin_lock_irqsave(&i2400m->tx_lock, flags); + tx_msg_moved = NULL; + if (i2400m->tx_buf == NULL) + goto out_unlock; skip: tx_msg_moved = NULL; if (i2400m->tx_in == i2400m->tx_out) { /* Empty FIFO? */ @@ -829,6 +838,8 @@ void i2400m_tx_msg_sent(struct i2400m *i2400m) d_fnstart(3, dev, "(i2400m %p)\n", i2400m); spin_lock_irqsave(&i2400m->tx_lock, flags); + if (i2400m->tx_buf == NULL) + goto out_unlock; i2400m->tx_out += i2400m->tx_msg_size; d_printf(2, dev, "TX: sent %zu b\n", (size_t) i2400m->tx_msg_size); i2400m->tx_msg_size = 0; @@ -837,6 +848,7 @@ void i2400m_tx_msg_sent(struct i2400m *i2400m) n = i2400m->tx_out / I2400M_TX_BUF_SIZE; i2400m->tx_out %= I2400M_TX_BUF_SIZE; i2400m->tx_in -= n * I2400M_TX_BUF_SIZE; +out_unlock: spin_unlock_irqrestore(&i2400m->tx_lock, flags); d_fnend(3, dev, "(i2400m %p) = void\n", i2400m); } @@ -876,5 +888,9 @@ int i2400m_tx_setup(struct i2400m *i2400m) */ void i2400m_tx_release(struct i2400m *i2400m) { + unsigned long flags; + spin_lock_irqsave(&i2400m->tx_lock, flags); kfree(i2400m->tx_buf); + i2400m->tx_buf = NULL; + spin_unlock_irqrestore(&i2400m->tx_lock, flags); } diff --git a/drivers/net/wimax/i2400m/usb-fw.c b/drivers/net/wimax/i2400m/usb-fw.c index 5ad287c..ce6b993 100644 --- a/drivers/net/wimax/i2400m/usb-fw.c +++ b/drivers/net/wimax/i2400m/usb-fw.c @@ -99,10 +99,10 @@ ssize_t i2400mu_tx_bulk_out(struct i2400mu *i2400mu, void *buf, size_t buf_size) dev_err(dev, "BM-CMD: can't get autopm: %d\n", result); do_autopm = 0; } - epd = usb_get_epd(i2400mu->usb_iface, I2400MU_EP_BULK_OUT); + epd = usb_get_epd(i2400mu->usb_iface, i2400mu->endpoint_cfg.bulk_out); pipe = usb_sndbulkpipe(i2400mu->usb_dev, epd->bEndpointAddress); retry: - result = usb_bulk_msg(i2400mu->usb_dev, pipe, buf, buf_size, &len, HZ); + result = usb_bulk_msg(i2400mu->usb_dev, pipe, buf, buf_size, &len, 200); switch (result) { case 0: if (len != buf_size) { @@ -113,6 +113,28 @@ retry: } result = len; break; + case -EPIPE: + /* + * Stall -- maybe the device is choking with our + * requests. Clear it and give it some time. If they + * happen to often, it might be another symptom, so we + * reset. + * + * No error handling for usb_clear_halt(0; if it + * works, the retry works; if it fails, this switch + * does the error handling for us. + */ + if (edc_inc(&i2400mu->urb_edc, + 10 * EDC_MAX_ERRORS, EDC_ERROR_TIMEFRAME)) { + dev_err(dev, "BM-CMD: too many stalls in " + "URB; resetting device\n"); + usb_queue_reset_device(i2400mu->usb_iface); + /* fallthrough */ + } else { + usb_clear_halt(i2400mu->usb_dev, pipe); + msleep(10); /* give the device some time */ + goto retry; + } case -EINVAL: /* while removing driver */ case -ENODEV: /* dev disconnect ... */ case -ENOENT: /* just ignore it */ @@ -135,7 +157,6 @@ retry: result); goto retry; } - result = len; if (do_autopm) usb_autopm_put_interface(i2400mu->usb_iface); return result; @@ -172,7 +193,8 @@ ssize_t i2400mu_bus_bm_cmd_send(struct i2400m *i2400m, result = -E2BIG; if (cmd_size > I2400M_BM_CMD_BUF_SIZE) goto error_too_big; - memcpy(i2400m->bm_cmd_buf, _cmd, cmd_size); + if (_cmd != i2400m->bm_cmd_buf) + memmove(i2400m->bm_cmd_buf, _cmd, cmd_size); cmd = i2400m->bm_cmd_buf; if (cmd_size_a > cmd_size) /* Zero pad space */ memset(i2400m->bm_cmd_buf + cmd_size, 0, cmd_size_a - cmd_size); @@ -226,7 +248,8 @@ int i2400mu_notif_submit(struct i2400mu *i2400mu, struct urb *urb, struct usb_endpoint_descriptor *epd; int pipe; - epd = usb_get_epd(i2400mu->usb_iface, I2400MU_EP_NOTIFICATION); + epd = usb_get_epd(i2400mu->usb_iface, + i2400mu->endpoint_cfg.notification); pipe = usb_rcvintpipe(i2400mu->usb_dev, epd->bEndpointAddress); usb_fill_int_urb(urb, i2400mu->usb_dev, pipe, i2400m->bm_ack_buf, I2400M_BM_ACK_BUF_SIZE, @@ -328,8 +351,8 @@ error_dev_gone: out: if (do_autopm) usb_autopm_put_interface(i2400mu->usb_iface); - d_fnend(8, dev, "(i2400m %p ack %p size %zu) = %zd\n", - i2400m, ack, ack_size, result); + d_fnend(8, dev, "(i2400m %p ack %p size %zu) = %ld\n", + i2400m, ack, ack_size, (long) result); return result; error_exceeded: diff --git a/drivers/net/wimax/i2400m/usb-notif.c b/drivers/net/wimax/i2400m/usb-notif.c index 6add27c..f88d1c6 100644 --- a/drivers/net/wimax/i2400m/usb-notif.c +++ b/drivers/net/wimax/i2400m/usb-notif.c @@ -51,6 +51,7 @@ * * i2400mu_usb_notification_cb() Called when a URB is ready * i2400mu_notif_grok() + * i2400m_is_boot_barker() * i2400m_dev_reset_handle() * i2400mu_rx_kick() */ @@ -87,32 +88,21 @@ int i2400mu_notification_grok(struct i2400mu *i2400mu, const void *buf, d_fnstart(4, dev, "(i2400m %p buf %p buf_len %zu)\n", i2400mu, buf, buf_len); ret = -EIO; - if (buf_len < sizeof(i2400m_NBOOT_BARKER)) + if (buf_len < sizeof(i2400m_ZERO_BARKER)) /* Not a bug, just ignore */ goto error_bad_size; - if (!memcmp(i2400m_NBOOT_BARKER, buf, sizeof(i2400m_NBOOT_BARKER)) - || !memcmp(i2400m_SBOOT_BARKER, buf, sizeof(i2400m_SBOOT_BARKER))) - ret = i2400m_dev_reset_handle(i2400m); - else if (!memcmp(i2400m_ZERO_BARKER, buf, sizeof(i2400m_ZERO_BARKER))) { + ret = 0; + if (!memcmp(i2400m_ZERO_BARKER, buf, sizeof(i2400m_ZERO_BARKER))) { i2400mu_rx_kick(i2400mu); - ret = 0; - } else { /* Unknown or unexpected data in the notif message */ - char prefix[64]; - ret = -EIO; - dev_err(dev, "HW BUG? Unknown/unexpected data in notification " - "message (%zu bytes)\n", buf_len); - snprintf(prefix, sizeof(prefix), "%s %s: ", - dev_driver_string(dev), dev_name(dev)); - if (buf_len > 64) { - print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET, - 8, 4, buf, 64, 0); - printk(KERN_ERR "%s... (only first 64 bytes " - "dumped)\n", prefix); - } else - print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET, - 8, 4, buf, buf_len, 0); + goto out; } + ret = i2400m_is_boot_barker(i2400m, buf, buf_len); + if (unlikely(ret >= 0)) + ret = i2400m_dev_reset_handle(i2400m, "device rebooted"); + else /* Unknown or unexpected data in the notif message */ + i2400m_unknown_barker(i2400m, buf, buf_len); error_bad_size: +out: d_fnend(4, dev, "(i2400m %p buf %p buf_len %zu) = %d\n", i2400mu, buf, buf_len, ret); return ret; @@ -220,7 +210,8 @@ int i2400mu_notification_setup(struct i2400mu *i2400mu) dev_err(dev, "notification: cannot allocate URB\n"); goto error_alloc_urb; } - epd = usb_get_epd(i2400mu->usb_iface, I2400MU_EP_NOTIFICATION); + epd = usb_get_epd(i2400mu->usb_iface, + i2400mu->endpoint_cfg.notification); usb_pipe = usb_rcvintpipe(i2400mu->usb_dev, epd->bEndpointAddress); usb_fill_int_urb(i2400mu->notif_urb, i2400mu->usb_dev, usb_pipe, buf, I2400MU_MAX_NOTIFICATION_LEN, diff --git a/drivers/net/wimax/i2400m/usb-rx.c b/drivers/net/wimax/i2400m/usb-rx.c index a314799..ba1b023 100644 --- a/drivers/net/wimax/i2400m/usb-rx.c +++ b/drivers/net/wimax/i2400m/usb-rx.c @@ -204,7 +204,7 @@ struct sk_buff *i2400mu_rx(struct i2400mu *i2400mu, struct sk_buff *rx_skb) dev_err(dev, "RX: can't get autopm: %d\n", result); do_autopm = 0; } - epd = usb_get_epd(i2400mu->usb_iface, I2400MU_EP_BULK_IN); + epd = usb_get_epd(i2400mu->usb_iface, i2400mu->endpoint_cfg.bulk_in); usb_pipe = usb_rcvbulkpipe(i2400mu->usb_dev, epd->bEndpointAddress); retry: rx_size = skb_end_pointer(rx_skb) - rx_skb->data - rx_skb->len; @@ -214,7 +214,7 @@ retry: } result = usb_bulk_msg( i2400mu->usb_dev, usb_pipe, rx_skb->data + rx_skb->len, - rx_size, &read_size, HZ); + rx_size, &read_size, 200); usb_mark_last_busy(i2400mu->usb_dev); switch (result) { case 0: @@ -222,6 +222,26 @@ retry: goto retry; /* ZLP, just resubmit */ skb_put(rx_skb, read_size); break; + case -EPIPE: + /* + * Stall -- maybe the device is choking with our + * requests. Clear it and give it some time. If they + * happen to often, it might be another symptom, so we + * reset. + * + * No error handling for usb_clear_halt(0; if it + * works, the retry works; if it fails, this switch + * does the error handling for us. + */ + if (edc_inc(&i2400mu->urb_edc, + 10 * EDC_MAX_ERRORS, EDC_ERROR_TIMEFRAME)) { + dev_err(dev, "BM-CMD: too many stalls in " + "URB; resetting device\n"); + goto do_reset; + } + usb_clear_halt(i2400mu->usb_dev, usb_pipe); + msleep(10); /* give the device some time */ + goto retry; case -EINVAL: /* while removing driver */ case -ENODEV: /* dev disconnect ... */ case -ENOENT: /* just ignore it */ @@ -283,6 +303,7 @@ out: error_reset: dev_err(dev, "RX: maximum errors in URB exceeded; " "resetting device\n"); +do_reset: usb_queue_reset_device(i2400mu->usb_iface); rx_skb = ERR_PTR(result); goto out; @@ -316,10 +337,15 @@ int i2400mu_rxd(void *_i2400mu) size_t pending; int rx_size; struct sk_buff *rx_skb; + unsigned long flags; d_fnstart(4, dev, "(i2400mu %p)\n", i2400mu); + spin_lock_irqsave(&i2400m->rx_lock, flags); + BUG_ON(i2400mu->rx_kthread != NULL); + i2400mu->rx_kthread = current; + spin_unlock_irqrestore(&i2400m->rx_lock, flags); while (1) { - d_printf(2, dev, "TX: waiting for messages\n"); + d_printf(2, dev, "RX: waiting for messages\n"); pending = 0; wait_event_interruptible( i2400mu->rx_wq, @@ -367,6 +393,9 @@ int i2400mu_rxd(void *_i2400mu) } result = 0; out: + spin_lock_irqsave(&i2400m->rx_lock, flags); + i2400mu->rx_kthread = NULL; + spin_unlock_irqrestore(&i2400m->rx_lock, flags); d_fnend(4, dev, "(i2400mu %p) = %d\n", i2400mu, result); return result; @@ -403,18 +432,33 @@ int i2400mu_rx_setup(struct i2400mu *i2400mu) struct i2400m *i2400m = &i2400mu->i2400m; struct device *dev = &i2400mu->usb_iface->dev; struct wimax_dev *wimax_dev = &i2400m->wimax_dev; + struct task_struct *kthread; - i2400mu->rx_kthread = kthread_run(i2400mu_rxd, i2400mu, "%s-rx", - wimax_dev->name); - if (IS_ERR(i2400mu->rx_kthread)) { - result = PTR_ERR(i2400mu->rx_kthread); + kthread = kthread_run(i2400mu_rxd, i2400mu, "%s-rx", + wimax_dev->name); + /* the kthread function sets i2400mu->rx_thread */ + if (IS_ERR(kthread)) { + result = PTR_ERR(kthread); dev_err(dev, "RX: cannot start thread: %d\n", result); } return result; } + void i2400mu_rx_release(struct i2400mu *i2400mu) { - kthread_stop(i2400mu->rx_kthread); + unsigned long flags; + struct i2400m *i2400m = &i2400mu->i2400m; + struct device *dev = i2400m_dev(i2400m); + struct task_struct *kthread; + + spin_lock_irqsave(&i2400m->rx_lock, flags); + kthread = i2400mu->rx_kthread; + i2400mu->rx_kthread = NULL; + spin_unlock_irqrestore(&i2400m->rx_lock, flags); + if (kthread) + kthread_stop(kthread); + else + d_printf(1, dev, "RX: kthread had already exited\n"); } diff --git a/drivers/net/wimax/i2400m/usb-tx.c b/drivers/net/wimax/i2400m/usb-tx.c index dfd8933..c65b997 100644 --- a/drivers/net/wimax/i2400m/usb-tx.c +++ b/drivers/net/wimax/i2400m/usb-tx.c @@ -101,11 +101,11 @@ int i2400mu_tx(struct i2400mu *i2400mu, struct i2400m_msg_hdr *tx_msg, dev_err(dev, "TX: can't get autopm: %d\n", result); do_autopm = 0; } - epd = usb_get_epd(i2400mu->usb_iface, I2400MU_EP_BULK_OUT); + epd = usb_get_epd(i2400mu->usb_iface, i2400mu->endpoint_cfg.bulk_out); usb_pipe = usb_sndbulkpipe(i2400mu->usb_dev, epd->bEndpointAddress); retry: result = usb_bulk_msg(i2400mu->usb_dev, usb_pipe, - tx_msg, tx_msg_size, &sent_size, HZ); + tx_msg, tx_msg_size, &sent_size, 200); usb_mark_last_busy(i2400mu->usb_dev); switch (result) { case 0: @@ -115,6 +115,28 @@ retry: result = -EIO; } break; + case -EPIPE: + /* + * Stall -- maybe the device is choking with our + * requests. Clear it and give it some time. If they + * happen to often, it might be another symptom, so we + * reset. + * + * No error handling for usb_clear_halt(0; if it + * works, the retry works; if it fails, this switch + * does the error handling for us. + */ + if (edc_inc(&i2400mu->urb_edc, + 10 * EDC_MAX_ERRORS, EDC_ERROR_TIMEFRAME)) { + dev_err(dev, "BM-CMD: too many stalls in " + "URB; resetting device\n"); + usb_queue_reset_device(i2400mu->usb_iface); + /* fallthrough */ + } else { + usb_clear_halt(i2400mu->usb_dev, usb_pipe); + msleep(10); /* give the device some time */ + goto retry; + } case -EINVAL: /* while removing driver */ case -ENODEV: /* dev disconnect ... */ case -ENOENT: /* just ignore it */ @@ -161,9 +183,15 @@ int i2400mu_txd(void *_i2400mu) struct device *dev = &i2400mu->usb_iface->dev; struct i2400m_msg_hdr *tx_msg; size_t tx_msg_size; + unsigned long flags; d_fnstart(4, dev, "(i2400mu %p)\n", i2400mu); + spin_lock_irqsave(&i2400m->tx_lock, flags); + BUG_ON(i2400mu->tx_kthread != NULL); + i2400mu->tx_kthread = current; + spin_unlock_irqrestore(&i2400m->tx_lock, flags); + while (1) { d_printf(2, dev, "TX: waiting for messages\n"); tx_msg = NULL; @@ -183,6 +211,11 @@ int i2400mu_txd(void *_i2400mu) if (result < 0) break; } + + spin_lock_irqsave(&i2400m->tx_lock, flags); + i2400mu->tx_kthread = NULL; + spin_unlock_irqrestore(&i2400m->tx_lock, flags); + d_fnend(4, dev, "(i2400mu %p) = %d\n", i2400mu, result); return result; } @@ -213,11 +246,13 @@ int i2400mu_tx_setup(struct i2400mu *i2400mu) struct i2400m *i2400m = &i2400mu->i2400m; struct device *dev = &i2400mu->usb_iface->dev; struct wimax_dev *wimax_dev = &i2400m->wimax_dev; + struct task_struct *kthread; - i2400mu->tx_kthread = kthread_run(i2400mu_txd, i2400mu, "%s-tx", - wimax_dev->name); - if (IS_ERR(i2400mu->tx_kthread)) { - result = PTR_ERR(i2400mu->tx_kthread); + kthread = kthread_run(i2400mu_txd, i2400mu, "%s-tx", + wimax_dev->name); + /* the kthread function sets i2400mu->tx_thread */ + if (IS_ERR(kthread)) { + result = PTR_ERR(kthread); dev_err(dev, "TX: cannot start thread: %d\n", result); } return result; @@ -225,5 +260,17 @@ int i2400mu_tx_setup(struct i2400mu *i2400mu) void i2400mu_tx_release(struct i2400mu *i2400mu) { - kthread_stop(i2400mu->tx_kthread); + unsigned long flags; + struct i2400m *i2400m = &i2400mu->i2400m; + struct device *dev = i2400m_dev(i2400m); + struct task_struct *kthread; + + spin_lock_irqsave(&i2400m->tx_lock, flags); + kthread = i2400mu->tx_kthread; + i2400mu->tx_kthread = NULL; + spin_unlock_irqrestore(&i2400m->tx_lock, flags); + if (kthread) + kthread_stop(kthread); + else + d_printf(1, dev, "TX: kthread had already exited\n"); } diff --git a/drivers/net/wimax/i2400m/usb.c b/drivers/net/wimax/i2400m/usb.c index 7eadd11..47e84ef 100644 --- a/drivers/net/wimax/i2400m/usb.c +++ b/drivers/net/wimax/i2400m/usb.c @@ -58,7 +58,7 @@ * i2400mu_rx_release() * i2400mu_tx_release() * - * i2400mu_bus_reset() Called by i2400m->bus_reset + * i2400mu_bus_reset() Called by i2400m_reset * __i2400mu_reset() * __i2400mu_send_barker() * usb_reset_device() @@ -71,13 +71,25 @@ #define D_SUBMODULE usb #include "usb-debug-levels.h" +static char i2400mu_debug_params[128]; +module_param_string(debug, i2400mu_debug_params, sizeof(i2400mu_debug_params), + 0644); +MODULE_PARM_DESC(debug, + "String of space-separated NAME:VALUE pairs, where NAMEs " + "are the different debug submodules and VALUE are the " + "initial debug value to set."); /* Our firmware file name */ -static const char *i2400mu_bus_fw_names[] = { +static const char *i2400mu_bus_fw_names_5x50[] = { #define I2400MU_FW_FILE_NAME_v1_4 "i2400m-fw-usb-1.4.sbcf" I2400MU_FW_FILE_NAME_v1_4, -#define I2400MU_FW_FILE_NAME_v1_3 "i2400m-fw-usb-1.3.sbcf" - I2400MU_FW_FILE_NAME_v1_3, + NULL, +}; + + +static const char *i2400mu_bus_fw_names_6050[] = { +#define I6050U_FW_FILE_NAME_v1_5 "i6050-fw-usb-1.5.sbcf" + I6050U_FW_FILE_NAME_v1_5, NULL, }; @@ -160,14 +172,59 @@ int __i2400mu_send_barker(struct i2400mu *i2400mu, epd = usb_get_epd(i2400mu->usb_iface, endpoint); pipe = usb_sndbulkpipe(i2400mu->usb_dev, epd->bEndpointAddress); memcpy(buffer, barker, barker_size); +retry: ret = usb_bulk_msg(i2400mu->usb_dev, pipe, buffer, barker_size, - &actual_len, HZ); - if (ret < 0) { - if (ret != -EINVAL) - dev_err(dev, "E: barker error: %d\n", ret); - } else if (actual_len != barker_size) { - dev_err(dev, "E: only %d bytes transmitted\n", actual_len); - ret = -EIO; + &actual_len, 200); + switch (ret) { + case 0: + if (actual_len != barker_size) { /* Too short? drop it */ + dev_err(dev, "E: %s: short write (%d B vs %zu " + "expected)\n", + __func__, actual_len, barker_size); + ret = -EIO; + } + break; + case -EPIPE: + /* + * Stall -- maybe the device is choking with our + * requests. Clear it and give it some time. If they + * happen to often, it might be another symptom, so we + * reset. + * + * No error handling for usb_clear_halt(0; if it + * works, the retry works; if it fails, this switch + * does the error handling for us. + */ + if (edc_inc(&i2400mu->urb_edc, + 10 * EDC_MAX_ERRORS, EDC_ERROR_TIMEFRAME)) { + dev_err(dev, "E: %s: too many stalls in " + "URB; resetting device\n", __func__); + usb_queue_reset_device(i2400mu->usb_iface); + /* fallthrough */ + } else { + usb_clear_halt(i2400mu->usb_dev, pipe); + msleep(10); /* give the device some time */ + goto retry; + } + case -EINVAL: /* while removing driver */ + case -ENODEV: /* dev disconnect ... */ + case -ENOENT: /* just ignore it */ + case -ESHUTDOWN: /* and exit */ + case -ECONNRESET: + ret = -ESHUTDOWN; + break; + default: /* Some error? */ + if (edc_inc(&i2400mu->urb_edc, + EDC_MAX_ERRORS, EDC_ERROR_TIMEFRAME)) { + dev_err(dev, "E: %s: maximum errors in URB " + "exceeded; resetting device\n", + __func__); + usb_queue_reset_device(i2400mu->usb_iface); + } else { + dev_warn(dev, "W: %s: cannot send URB: %d\n", + __func__, ret); + goto retry; + } } kfree(buffer); error_kzalloc: @@ -232,15 +289,16 @@ int i2400mu_bus_reset(struct i2400m *i2400m, enum i2400m_reset_type rt) d_fnstart(3, dev, "(i2400m %p rt %u)\n", i2400m, rt); if (rt == I2400M_RT_WARM) - result = __i2400mu_send_barker(i2400mu, i2400m_WARM_BOOT_BARKER, - sizeof(i2400m_WARM_BOOT_BARKER), - I2400MU_EP_BULK_OUT); + result = __i2400mu_send_barker( + i2400mu, i2400m_WARM_BOOT_BARKER, + sizeof(i2400m_WARM_BOOT_BARKER), + i2400mu->endpoint_cfg.bulk_out); else if (rt == I2400M_RT_COLD) - result = __i2400mu_send_barker(i2400mu, i2400m_COLD_BOOT_BARKER, - sizeof(i2400m_COLD_BOOT_BARKER), - I2400MU_EP_RESET_COLD); + result = __i2400mu_send_barker( + i2400mu, i2400m_COLD_BOOT_BARKER, + sizeof(i2400m_COLD_BOOT_BARKER), + i2400mu->endpoint_cfg.reset_cold); else if (rt == I2400M_RT_BUS) { -do_bus_reset: result = usb_reset_device(i2400mu->usb_dev); switch (result) { case 0: @@ -248,7 +306,7 @@ do_bus_reset: case -ENODEV: case -ENOENT: case -ESHUTDOWN: - result = rt == I2400M_RT_WARM ? -ENODEV : 0; + result = 0; break; /* We assume the device is disconnected */ default: dev_err(dev, "USB reset failed (%d), giving up!\n", @@ -261,10 +319,17 @@ do_bus_reset: if (result < 0 && result != -EINVAL /* device is gone */ && rt != I2400M_RT_BUS) { + /* + * Things failed -- resort to lower level reset, that + * we queue in another context; the reason for this is + * that the pre and post reset functionality requires + * the i2400m->init_mutex; RT_WARM and RT_COLD can + * come from areas where i2400m->init_mutex is taken. + */ dev_err(dev, "%s reset failed (%d); trying USB reset\n", rt == I2400M_RT_WARM ? "warm" : "cold", result); - rt = I2400M_RT_BUS; - goto do_bus_reset; + usb_queue_reset_device(i2400mu->usb_iface); + result = -ENODEV; } d_fnend(3, dev, "(i2400m %p rt %u) = %d\n", i2400m, rt, result); return result; @@ -402,20 +467,33 @@ int i2400mu_probe(struct usb_interface *iface, i2400m->bus_tx_block_size = I2400MU_BLK_SIZE; i2400m->bus_pl_size_max = I2400MU_PL_SIZE_MAX; + i2400m->bus_setup = NULL; i2400m->bus_dev_start = i2400mu_bus_dev_start; i2400m->bus_dev_stop = i2400mu_bus_dev_stop; + i2400m->bus_release = NULL; i2400m->bus_tx_kick = i2400mu_bus_tx_kick; i2400m->bus_reset = i2400mu_bus_reset; - i2400m->bus_bm_retries = I2400M_BOOT_RETRIES; + i2400m->bus_bm_retries = I2400M_USB_BOOT_RETRIES; i2400m->bus_bm_cmd_send = i2400mu_bus_bm_cmd_send; i2400m->bus_bm_wait_for_ack = i2400mu_bus_bm_wait_for_ack; - i2400m->bus_fw_names = i2400mu_bus_fw_names; i2400m->bus_bm_mac_addr_impaired = 0; + if (id->idProduct == USB_DEVICE_ID_I6050) { + i2400m->bus_fw_names = i2400mu_bus_fw_names_6050; + i2400mu->endpoint_cfg.bulk_out = 0; + i2400mu->endpoint_cfg.notification = 3; + i2400mu->endpoint_cfg.reset_cold = 2; + i2400mu->endpoint_cfg.bulk_in = 1; + } else { + i2400m->bus_fw_names = i2400mu_bus_fw_names_5x50; + i2400mu->endpoint_cfg.bulk_out = 0; + i2400mu->endpoint_cfg.notification = 1; + i2400mu->endpoint_cfg.reset_cold = 2; + i2400mu->endpoint_cfg.bulk_in = 3; + } #ifdef CONFIG_PM iface->needs_remote_wakeup = 1; /* autosuspend (15s delay) */ device_init_wakeup(dev, 1); - usb_autopm_enable(i2400mu->usb_iface); usb_dev->autosuspend_delay = 15 * HZ; usb_dev->autosuspend_disabled = 0; #endif @@ -483,7 +561,10 @@ void i2400mu_disconnect(struct usb_interface *iface) * So at the end, the three cases require common handling. * * If at the time of this call the device's firmware is not loaded, - * nothing has to be done. + * nothing has to be done. Note we can be "loose" about not reading + * i2400m->updown under i2400m->init_mutex. If it happens to change + * inmediately, other parts of the call flow will fail and effectively + * catch it. * * If the firmware is loaded, we need to: * @@ -522,6 +603,7 @@ int i2400mu_suspend(struct usb_interface *iface, pm_message_t pm_msg) #endif d_fnstart(3, dev, "(iface %p pm_msg %u)\n", iface, pm_msg.event); + rmb(); /* see i2400m->updown's documentation */ if (i2400m->updown == 0) goto no_firmware; if (i2400m->state == I2400M_SS_DATA_PATH_CONNECTED && is_autosuspend) { @@ -575,6 +657,7 @@ int i2400mu_resume(struct usb_interface *iface) struct i2400m *i2400m = &i2400mu->i2400m; d_fnstart(3, dev, "(iface %p)\n", iface); + rmb(); /* see i2400m->updown's documentation */ if (i2400m->updown == 0) { d_printf(1, dev, "fw was down, no resume neeed\n"); goto out; @@ -591,7 +674,54 @@ out: static +int i2400mu_reset_resume(struct usb_interface *iface) +{ + int result; + struct device *dev = &iface->dev; + struct i2400mu *i2400mu = usb_get_intfdata(iface); + struct i2400m *i2400m = &i2400mu->i2400m; + + d_fnstart(3, dev, "(iface %p)\n", iface); + result = i2400m_dev_reset_handle(i2400m, "device reset on resume"); + d_fnend(3, dev, "(iface %p) = %d\n", iface, result); + return result < 0 ? result : 0; +} + + +/* + * Another driver or user space is triggering a reset on the device + * which contains the interface passed as an argument. Cease IO and + * save any device state you need to restore. + * + * If you need to allocate memory here, use GFP_NOIO or GFP_ATOMIC, if + * you are in atomic context. + */ +static +int i2400mu_pre_reset(struct usb_interface *iface) +{ + struct i2400mu *i2400mu = usb_get_intfdata(iface); + return i2400m_pre_reset(&i2400mu->i2400m); +} + + +/* + * The reset has completed. Restore any saved device state and begin + * using the device again. + * + * If you need to allocate memory here, use GFP_NOIO or GFP_ATOMIC, if + * you are in atomic context. + */ +static +int i2400mu_post_reset(struct usb_interface *iface) +{ + struct i2400mu *i2400mu = usb_get_intfdata(iface); + return i2400m_post_reset(&i2400mu->i2400m); +} + + +static struct usb_device_id i2400mu_id_table[] = { + { USB_DEVICE(0x8086, USB_DEVICE_ID_I6050) }, { USB_DEVICE(0x8086, 0x0181) }, { USB_DEVICE(0x8086, 0x1403) }, { USB_DEVICE(0x8086, 0x1405) }, @@ -609,8 +739,11 @@ struct usb_driver i2400mu_driver = { .name = KBUILD_MODNAME, .suspend = i2400mu_suspend, .resume = i2400mu_resume, + .reset_resume = i2400mu_reset_resume, .probe = i2400mu_probe, .disconnect = i2400mu_disconnect, + .pre_reset = i2400mu_pre_reset, + .post_reset = i2400mu_post_reset, .id_table = i2400mu_id_table, .supports_autosuspend = 1, }; @@ -618,6 +751,8 @@ struct usb_driver i2400mu_driver = { static int __init i2400mu_driver_init(void) { + d_parse_params(D_LEVEL, D_LEVEL_SIZE, i2400mu_debug_params, + "i2400m_usb.debug"); return usb_register(&i2400mu_driver); } module_init(i2400mu_driver_init); @@ -632,7 +767,7 @@ void __exit i2400mu_driver_exit(void) module_exit(i2400mu_driver_exit); MODULE_AUTHOR("Intel Corporation <linux-wimax@intel.com>"); -MODULE_DESCRIPTION("Intel 2400M WiMAX networking for USB"); +MODULE_DESCRIPTION("Driver for USB based Intel Wireless WiMAX Connection 2400M " + "(5x50 & 6050)"); MODULE_LICENSE("GPL"); MODULE_FIRMWARE(I2400MU_FW_FILE_NAME_v1_4); -MODULE_FIRMWARE(I2400MU_FW_FILE_NAME_v1_3); diff --git a/drivers/net/wireless/ath/ath9k/rc.c b/drivers/net/wireless/ath/ath9k/rc.c index 0639364..bb72b46 100644 --- a/drivers/net/wireless/ath/ath9k/rc.c +++ b/drivers/net/wireless/ath/ath9k/rc.c @@ -679,7 +679,7 @@ static u8 ath_rc_get_highest_rix(struct ath_softc *sc, return rate; if (rate_table->info[rate].valid_single_stream && - !(ath_rc_priv->ht_cap & WLAN_RC_DS_FLAG)); + !(ath_rc_priv->ht_cap & WLAN_RC_DS_FLAG)) return rate; /* This should not happen */ diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c index 8701034..de4e804 100644 --- a/drivers/net/wireless/b43/dma.c +++ b/drivers/net/wireless/b43/dma.c @@ -1157,8 +1157,9 @@ struct b43_dmaring *parse_cookie(struct b43_wldev *dev, u16 cookie, int *slot) } static int dma_tx_fragment(struct b43_dmaring *ring, - struct sk_buff *skb) + struct sk_buff **in_skb) { + struct sk_buff *skb = *in_skb; const struct b43_dma_ops *ops = ring->ops; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); u8 *header; @@ -1224,8 +1225,14 @@ static int dma_tx_fragment(struct b43_dmaring *ring, } memcpy(skb_put(bounce_skb, skb->len), skb->data, skb->len); + memcpy(bounce_skb->cb, skb->cb, sizeof(skb->cb)); + bounce_skb->dev = skb->dev; + skb_set_queue_mapping(bounce_skb, skb_get_queue_mapping(skb)); + info = IEEE80211_SKB_CB(bounce_skb); + dev_kfree_skb_any(skb); skb = bounce_skb; + *in_skb = bounce_skb; meta->skb = skb; meta->dmaaddr = map_descbuffer(ring, skb->data, skb->len, 1); if (b43_dma_mapping_error(ring, meta->dmaaddr, skb->len, 1)) { @@ -1355,7 +1362,11 @@ int b43_dma_tx(struct b43_wldev *dev, struct sk_buff *skb) * static, so we don't need to store it per frame. */ ring->queue_prio = skb_get_queue_mapping(skb); - err = dma_tx_fragment(ring, skb); + /* dma_tx_fragment might reallocate the skb, so invalidate pointers pointing + * into the skb data or cb now. */ + hdr = NULL; + info = NULL; + err = dma_tx_fragment(ring, &skb); if (unlikely(err == -ENOKEY)) { /* Drop this packet, as we don't have the encryption key * anymore and must not transmit it unencrypted. */ diff --git a/drivers/net/wireless/ipw2x00/ipw2100.c b/drivers/net/wireless/ipw2x00/ipw2100.c index 240cff1..a741d37 100644 --- a/drivers/net/wireless/ipw2x00/ipw2100.c +++ b/drivers/net/wireless/ipw2x00/ipw2100.c @@ -6325,8 +6325,10 @@ static int ipw2100_pci_init_one(struct pci_dev *pci_dev, fail: if (dev) { - if (registered) + if (registered) { + unregister_ieee80211(priv->ieee); unregister_netdev(dev); + } ipw2100_hw_stop_adapter(priv); @@ -6383,6 +6385,7 @@ static void __devexit ipw2100_pci_remove_one(struct pci_dev *pci_dev) /* Unregister the device first - this results in close() * being called if the device is open. If we free storage * first, then close() will crash. */ + unregister_ieee80211(priv->ieee); unregister_netdev(dev); /* ipw2100_down will ensure that there is no more pending work diff --git a/drivers/net/wireless/ipw2x00/ipw2200.c b/drivers/net/wireless/ipw2x00/ipw2200.c index 61ef890..4539e63 100644 --- a/drivers/net/wireless/ipw2x00/ipw2200.c +++ b/drivers/net/wireless/ipw2x00/ipw2200.c @@ -11822,6 +11822,7 @@ static int __devinit ipw_pci_probe(struct pci_dev *pdev, if (err) { IPW_ERROR("Failed to register promiscuous network " "device (error %d).\n", err); + unregister_ieee80211(priv->ieee); unregister_netdev(priv->net_dev); goto out_remove_sysfs; } @@ -11872,6 +11873,7 @@ static void __devexit ipw_pci_remove(struct pci_dev *pdev) mutex_unlock(&priv->mutex); + unregister_ieee80211(priv->ieee); unregister_netdev(priv->net_dev); if (priv->rxq) { diff --git a/drivers/net/wireless/ipw2x00/libipw.h b/drivers/net/wireless/ipw2x00/libipw.h index bf45391..f42ade6 100644 --- a/drivers/net/wireless/ipw2x00/libipw.h +++ b/drivers/net/wireless/ipw2x00/libipw.h @@ -1020,6 +1020,7 @@ static inline int libipw_is_cck_rate(u8 rate) /* ieee80211.c */ extern void free_ieee80211(struct net_device *dev, int monitor); extern struct net_device *alloc_ieee80211(int sizeof_priv, int monitor); +extern void unregister_ieee80211(struct libipw_device *ieee); extern int libipw_change_mtu(struct net_device *dev, int new_mtu); extern void libipw_networks_age(struct libipw_device *ieee, diff --git a/drivers/net/wireless/ipw2x00/libipw_module.c b/drivers/net/wireless/ipw2x00/libipw_module.c index a0e9f6a..be5b809 100644 --- a/drivers/net/wireless/ipw2x00/libipw_module.c +++ b/drivers/net/wireless/ipw2x00/libipw_module.c @@ -235,16 +235,19 @@ void free_ieee80211(struct net_device *dev, int monitor) libipw_networks_free(ieee); /* free cfg80211 resources */ - if (!monitor) { - wiphy_unregister(ieee->wdev.wiphy); - kfree(ieee->a_band.channels); - kfree(ieee->bg_band.channels); + if (!monitor) wiphy_free(ieee->wdev.wiphy); - } free_netdev(dev); } +void unregister_ieee80211(struct libipw_device *ieee) +{ + wiphy_unregister(ieee->wdev.wiphy); + kfree(ieee->a_band.channels); + kfree(ieee->bg_band.channels); +} + #ifdef CONFIG_LIBIPW_DEBUG static int debug = 0; @@ -330,3 +333,4 @@ module_init(libipw_init); EXPORT_SYMBOL(alloc_ieee80211); EXPORT_SYMBOL(free_ieee80211); +EXPORT_SYMBOL(unregister_ieee80211); diff --git a/drivers/net/wireless/libertas/if_usb.c b/drivers/net/wireless/libertas/if_usb.c index a8262de..f12d667 100644 --- a/drivers/net/wireless/libertas/if_usb.c +++ b/drivers/net/wireless/libertas/if_usb.c @@ -511,7 +511,7 @@ static int __if_usb_submit_rx_urb(struct if_usb_card *cardp, /* Fill the receive configuration URB and initialise the Rx call back */ usb_fill_bulk_urb(cardp->rx_urb, cardp->udev, usb_rcvbulkpipe(cardp->udev, cardp->ep_in), - (void *) (skb->tail + (size_t) IPFIELD_ALIGN_OFFSET), + skb->data + IPFIELD_ALIGN_OFFSET, MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn, cardp); diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c index b8f5ee3..14e7bb21 100644 --- a/drivers/net/wireless/rt2x00/rt73usb.c +++ b/drivers/net/wireless/rt2x00/rt73usb.c @@ -2389,10 +2389,13 @@ static struct usb_device_id rt73usb_device_table[] = { { USB_DEVICE(0x13b1, 0x0023), USB_DEVICE_DATA(&rt73usb_ops) }, { USB_DEVICE(0x13b1, 0x0028), USB_DEVICE_DATA(&rt73usb_ops) }, /* MSI */ + { USB_DEVICE(0x0db0, 0x4600), USB_DEVICE_DATA(&rt73usb_ops) }, { USB_DEVICE(0x0db0, 0x6877), USB_DEVICE_DATA(&rt73usb_ops) }, { USB_DEVICE(0x0db0, 0x6874), USB_DEVICE_DATA(&rt73usb_ops) }, { USB_DEVICE(0x0db0, 0xa861), USB_DEVICE_DATA(&rt73usb_ops) }, { USB_DEVICE(0x0db0, 0xa874), USB_DEVICE_DATA(&rt73usb_ops) }, + /* Ovislink */ + { USB_DEVICE(0x1b75, 0x7318), USB_DEVICE_DATA(&rt73usb_ops) }, /* Ralink */ { USB_DEVICE(0x04bb, 0x093d), USB_DEVICE_DATA(&rt73usb_ops) }, { USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt73usb_ops) }, @@ -2420,6 +2423,8 @@ static struct usb_device_id rt73usb_device_table[] = { /* Planex */ { USB_DEVICE(0x2019, 0xab01), USB_DEVICE_DATA(&rt73usb_ops) }, { USB_DEVICE(0x2019, 0xab50), USB_DEVICE_DATA(&rt73usb_ops) }, + /* WideTell */ + { USB_DEVICE(0x7167, 0x3840), USB_DEVICE_DATA(&rt73usb_ops) }, /* Zcom */ { USB_DEVICE(0x0cde, 0x001c), USB_DEVICE_DATA(&rt73usb_ops) }, /* ZyXEL */ diff --git a/drivers/serial/serial_cs.c b/drivers/serial/serial_cs.c index ff4617e..7c7914f 100644 --- a/drivers/serial/serial_cs.c +++ b/drivers/serial/serial_cs.c @@ -879,10 +879,10 @@ static struct pcmcia_device_id serial_ids[] = { PCMCIA_MFC_DEVICE_CIS_MANF_CARD(1, 0x0175, 0x0000, "cis/DP83903.cis"), PCMCIA_MFC_DEVICE_CIS_MANF_CARD(1, 0x0101, 0x0035, "cis/3CXEM556.cis"), PCMCIA_MFC_DEVICE_CIS_MANF_CARD(1, 0x0101, 0x003d, "cis/3CXEM556.cis"), - PCMCIA_DEVICE_CIS_PROD_ID12("Sierra Wireless", "AC850", 0xd85f6206, 0x42a2c018, "SW_8xx_SER.cis"), /* Sierra Wireless AC850 3G Network Adapter R1 */ - PCMCIA_DEVICE_CIS_MANF_CARD(0x0192, 0x0710, "SW_7xx_SER.cis"), /* Sierra Wireless AC710/AC750 GPRS Network Adapter R1 */ - PCMCIA_DEVICE_CIS_MANF_CARD(0x0192, 0xa555, "SW_555_SER.cis"), /* Sierra Aircard 555 CDMA 1xrtt Modem -- pre update */ - PCMCIA_DEVICE_CIS_MANF_CARD(0x013f, 0xa555, "SW_555_SER.cis"), /* Sierra Aircard 555 CDMA 1xrtt Modem -- post update */ + PCMCIA_DEVICE_CIS_PROD_ID12("Sierra Wireless", "AC850", 0xd85f6206, 0x42a2c018, "cis/SW_8xx_SER.cis"), /* Sierra Wireless AC850 3G Network Adapter R1 */ + PCMCIA_DEVICE_CIS_PROD_ID12("Sierra Wireless", "AC710/AC750", 0xd85f6206, 0x761b11e0, "cis/SW_7xx_SER.cis"), /* Sierra Wireless AC710/AC750 GPRS Network Adapter R1 */ + PCMCIA_DEVICE_CIS_MANF_CARD(0x0192, 0xa555, "cis/SW_555_SER.cis"), /* Sierra Aircard 555 CDMA 1xrtt Modem -- pre update */ + PCMCIA_DEVICE_CIS_MANF_CARD(0x013f, 0xa555, "cis/SW_555_SER.cis"), /* Sierra Aircard 555 CDMA 1xrtt Modem -- post update */ PCMCIA_DEVICE_CIS_PROD_ID12("MultiTech", "PCMCIA 56K DataFax", 0x842047ee, 0xc2efcf03, "cis/MT5634ZLX.cis"), PCMCIA_DEVICE_CIS_PROD_ID12("ADVANTECH", "COMpad-32/85B-2", 0x96913a85, 0x27ab5437, "cis/COMpad2.cis"), PCMCIA_DEVICE_CIS_PROD_ID12("ADVANTECH", "COMpad-32/85B-4", 0x96913a85, 0xcec8f102, "cis/COMpad4.cis"), |
