diff options
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c')
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 487 |
1 files changed, 431 insertions, 56 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c index a83271c..4247356 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -1,7 +1,7 @@ /* * This file is part of the Chelsio T4 Ethernet driver for Linux. * - * Copyright (c) 2003-2010 Chelsio Communications, Inc. All rights reserved. + * Copyright (c) 2003-2014 Chelsio Communications, Inc. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU @@ -67,6 +67,7 @@ #include "t4_regs.h" #include "t4_msg.h" #include "t4fw_api.h" +#include "cxgb4_dcb.h" #include "l2t.h" #include <../drivers/net/bonding/bonding.h> @@ -223,6 +224,17 @@ static DEFINE_PCI_DEVICE_TABLE(cxgb4_pci_tbl) = { CH_DEVICE(0x4008, -1), CH_DEVICE(0x4009, -1), CH_DEVICE(0x400a, -1), + CH_DEVICE(0x400d, -1), + CH_DEVICE(0x400e, -1), + CH_DEVICE(0x4080, -1), + CH_DEVICE(0x4081, -1), + CH_DEVICE(0x4082, -1), + CH_DEVICE(0x4083, -1), + CH_DEVICE(0x4084, -1), + CH_DEVICE(0x4085, -1), + CH_DEVICE(0x4086, -1), + CH_DEVICE(0x4087, -1), + CH_DEVICE(0x4088, -1), CH_DEVICE(0x4401, 4), CH_DEVICE(0x4402, 4), CH_DEVICE(0x4403, 4), @@ -235,6 +247,15 @@ static DEFINE_PCI_DEVICE_TABLE(cxgb4_pci_tbl) = { CH_DEVICE(0x440a, 4), CH_DEVICE(0x440d, 4), CH_DEVICE(0x440e, 4), + CH_DEVICE(0x4480, 4), + CH_DEVICE(0x4481, 4), + CH_DEVICE(0x4482, 4), + CH_DEVICE(0x4483, 4), + CH_DEVICE(0x4484, 4), + CH_DEVICE(0x4485, 4), + CH_DEVICE(0x4486, 4), + CH_DEVICE(0x4487, 4), + CH_DEVICE(0x4488, 4), CH_DEVICE(0x5001, 4), CH_DEVICE(0x5002, 4), CH_DEVICE(0x5003, 4), @@ -391,6 +412,17 @@ module_param_array(num_vf, uint, NULL, 0644); MODULE_PARM_DESC(num_vf, "number of VFs for each of PFs 0-3"); #endif +/* TX Queue select used to determine what algorithm to use for selecting TX + * queue. Select between the kernel provided function (select_queue=0) or user + * cxgb_select_queue function (select_queue=1) + * + * Default: select_queue=0 + */ +static int select_queue; +module_param(select_queue, int, 0644); +MODULE_PARM_DESC(select_queue, + "Select between kernel provided method of selecting or driver method of selecting TX queue. Default is kernel method."); + /* * The filter TCAM has a fixed portion and a variable portion. The fixed * portion can match on source/destination IP IPv4/IPv6 addresses and TCP/UDP @@ -458,6 +490,42 @@ static void link_report(struct net_device *dev) } } +#ifdef CONFIG_CHELSIO_T4_DCB +/* Set up/tear down Data Center Bridging Priority mapping for a net device. */ +static void dcb_tx_queue_prio_enable(struct net_device *dev, int enable) +{ + struct port_info *pi = netdev_priv(dev); + struct adapter *adap = pi->adapter; + struct sge_eth_txq *txq = &adap->sge.ethtxq[pi->first_qset]; + int i; + + /* We use a simple mapping of Port TX Queue Index to DCB + * Priority when we're enabling DCB. + */ + for (i = 0; i < pi->nqsets; i++, txq++) { + u32 name, value; + int err; + + name = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DMAQ) | + FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DMAQ_EQ_DCBPRIO_ETH) | + FW_PARAMS_PARAM_YZ(txq->q.cntxt_id)); + value = enable ? i : 0xffffffff; + + /* Since we can be called while atomic (from "interrupt + * level") we need to issue the Set Parameters Commannd + * without sleeping (timeout < 0). + */ + err = t4_set_params_nosleep(adap, adap->mbox, adap->fn, 0, 1, + &name, &value); + + if (err) + dev_err(adap->pdev_dev, + "Can't %s DCB Priority on port %d, TX Queue %d: err=%d\n", + enable ? "set" : "unset", pi->port_id, i, -err); + } +} +#endif /* CONFIG_CHELSIO_T4_DCB */ + void t4_os_link_changed(struct adapter *adapter, int port_id, int link_stat) { struct net_device *dev = adapter->port[port_id]; @@ -466,8 +534,13 @@ void t4_os_link_changed(struct adapter *adapter, int port_id, int link_stat) if (netif_running(dev) && link_stat != netif_carrier_ok(dev)) { if (link_stat) netif_carrier_on(dev); - else + else { +#ifdef CONFIG_CHELSIO_T4_DCB + cxgb4_dcb_state_init(dev); + dcb_tx_queue_prio_enable(dev, false); +#endif /* CONFIG_CHELSIO_T4_DCB */ netif_carrier_off(dev); + } link_report(dev); } @@ -600,11 +673,49 @@ static int link_start(struct net_device *dev) if (ret == 0) ret = t4_link_start(pi->adapter, mb, pi->tx_chan, &pi->link_cfg); - if (ret == 0) - ret = t4_enable_vi(pi->adapter, mb, pi->viid, true, true); + if (ret == 0) { + local_bh_disable(); + ret = t4_enable_vi_params(pi->adapter, mb, pi->viid, true, + true, CXGB4_DCB_ENABLED); + local_bh_enable(); + } + return ret; } +int cxgb4_dcb_enabled(const struct net_device *dev) +{ +#ifdef CONFIG_CHELSIO_T4_DCB + struct port_info *pi = netdev_priv(dev); + + return pi->dcb.state == CXGB4_DCB_STATE_FW_ALLSYNCED; +#else + return 0; +#endif +} +EXPORT_SYMBOL(cxgb4_dcb_enabled); + +#ifdef CONFIG_CHELSIO_T4_DCB +/* Handle a Data Center Bridging update message from the firmware. */ +static void dcb_rpl(struct adapter *adap, const struct fw_port_cmd *pcmd) +{ + int port = FW_PORT_CMD_PORTID_GET(ntohl(pcmd->op_to_portid)); + struct net_device *dev = adap->port[port]; + int old_dcb_enabled = cxgb4_dcb_enabled(dev); + int new_dcb_enabled; + + cxgb4_dcb_handle_fw_update(adap, pcmd); + new_dcb_enabled = cxgb4_dcb_enabled(dev); + + /* If the DCB has become enabled or disabled on the port then we're + * going to need to set up/tear down DCB Priority parameters for the + * TX Queues associated with the port. + */ + if (new_dcb_enabled != old_dcb_enabled) + dcb_tx_queue_prio_enable(dev, new_dcb_enabled); +} +#endif /* CONFIG_CHELSIO_T4_DCB */ + /* Clear a filter and release any of its resources that we own. This also * clears the filter's "pending" status. */ @@ -709,8 +820,32 @@ static int fwevtq_handler(struct sge_rspq *q, const __be64 *rsp, } else if (opcode == CPL_FW6_MSG || opcode == CPL_FW4_MSG) { const struct cpl_fw6_msg *p = (void *)rsp; - if (p->type == 0) - t4_handle_fw_rpl(q->adap, p->data); +#ifdef CONFIG_CHELSIO_T4_DCB + const struct fw_port_cmd *pcmd = (const void *)p->data; + unsigned int cmd = FW_CMD_OP_GET(ntohl(pcmd->op_to_portid)); + unsigned int action = + FW_PORT_CMD_ACTION_GET(ntohl(pcmd->action_to_len16)); + + if (cmd == FW_PORT_CMD && + action == FW_PORT_ACTION_GET_PORT_INFO) { + int port = FW_PORT_CMD_PORTID_GET( + be32_to_cpu(pcmd->op_to_portid)); + struct net_device *dev = q->adap->port[port]; + int state_input = ((pcmd->u.info.dcbxdis_pkd & + FW_PORT_CMD_DCBXDIS) + ? CXGB4_DCB_INPUT_FW_DISABLED + : CXGB4_DCB_INPUT_FW_ENABLED); + + cxgb4_dcb_state_fsm(dev, state_input); + } + + if (cmd == FW_PORT_CMD && + action == FW_PORT_ACTION_L2_DCB_CFG) + dcb_rpl(q->adap, pcmd); + else +#endif + if (p->type == 0) + t4_handle_fw_rpl(q->adap, p->data); } else if (opcode == CPL_L2T_WRITE_RPL) { const struct cpl_l2t_write_rpl *p = (void *)rsp; @@ -1290,6 +1425,48 @@ static int del_filter_wr(struct adapter *adapter, int fidx) return 0; } +static u16 cxgb_select_queue(struct net_device *dev, struct sk_buff *skb, + void *accel_priv, select_queue_fallback_t fallback) +{ + int txq; + +#ifdef CONFIG_CHELSIO_T4_DCB + /* If a Data Center Bridging has been successfully negotiated on this + * link then we'll use the skb's priority to map it to a TX Queue. + * The skb's priority is determined via the VLAN Tag Priority Code + * Point field. + */ + if (cxgb4_dcb_enabled(dev)) { + u16 vlan_tci; + int err; + + err = vlan_get_tag(skb, &vlan_tci); + if (unlikely(err)) { + if (net_ratelimit()) + netdev_warn(dev, + "TX Packet without VLAN Tag on DCB Link\n"); + txq = 0; + } else { + txq = (vlan_tci & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT; + } + return txq; + } +#endif /* CONFIG_CHELSIO_T4_DCB */ + + if (select_queue) { + txq = (skb_rx_queue_recorded(skb) + ? skb_get_rx_queue(skb) + : smp_processor_id()); + + while (unlikely(txq >= dev->real_num_tx_queues)) + txq -= dev->real_num_tx_queues; + + return txq; + } + + return fallback(dev, skb) % dev->real_num_tx_queues; +} + static inline int is_offload(const struct adapter *adap) { return adap->params.offload; @@ -2912,6 +3089,8 @@ static ssize_t mem_read(struct file *file, char __user *buf, size_t count, loff_t avail = file_inode(file)->i_size; unsigned int mem = (uintptr_t)file->private_data & 3; struct adapter *adap = file->private_data - mem; + __be32 *data; + int ret; if (pos < 0) return -EINVAL; @@ -2920,29 +3099,24 @@ static ssize_t mem_read(struct file *file, char __user *buf, size_t count, if (count > avail - pos) count = avail - pos; - while (count) { - size_t len; - int ret, ofst; - __be32 data[16]; + data = t4_alloc_mem(count); + if (!data) + return -ENOMEM; - if ((mem == MEM_MC) || (mem == MEM_MC1)) - ret = t4_mc_read(adap, mem % MEM_MC, pos, data, NULL); - else - ret = t4_edc_read(adap, mem, pos, data, NULL); - if (ret) - return ret; + spin_lock(&adap->win0_lock); + ret = t4_memory_rw(adap, 0, mem, pos, count, data, T4_MEMORY_READ); + spin_unlock(&adap->win0_lock); + if (ret) { + t4_free_mem(data); + return ret; + } + ret = copy_to_user(buf, data, count); - ofst = pos % sizeof(data); - len = min(count, sizeof(data) - ofst); - if (copy_to_user(buf, (u8 *)data + ofst, len)) - return -EFAULT; + t4_free_mem(data); + if (ret) + return -EFAULT; - buf += len; - pos += len; - count -= len; - } - count = pos - *ppos; - *ppos = pos; + *ppos = pos + count; return count; } @@ -3274,8 +3448,8 @@ static int tid_init(struct tid_info *t) return 0; } -static int cxgb4_clip_get(const struct net_device *dev, - const struct in6_addr *lip) +int cxgb4_clip_get(const struct net_device *dev, + const struct in6_addr *lip) { struct adapter *adap; struct fw_clip_cmd c; @@ -3289,9 +3463,10 @@ static int cxgb4_clip_get(const struct net_device *dev, c.ip_lo = *(__be64 *)(lip->s6_addr + 8); return t4_wr_mbox_meat(adap, adap->mbox, &c, sizeof(c), &c, false); } +EXPORT_SYMBOL(cxgb4_clip_get); -static int cxgb4_clip_release(const struct net_device *dev, - const struct in6_addr *lip) +int cxgb4_clip_release(const struct net_device *dev, + const struct in6_addr *lip) { struct adapter *adap; struct fw_clip_cmd c; @@ -3305,6 +3480,7 @@ static int cxgb4_clip_release(const struct net_device *dev, c.ip_lo = *(__be64 *)(lip->s6_addr + 8); return t4_wr_mbox_meat(adap, adap->mbox, &c, sizeof(c), &c, false); } +EXPORT_SYMBOL(cxgb4_clip_release); /** * cxgb4_create_server - create an IP server @@ -3603,7 +3779,11 @@ static int read_eq_indices(struct adapter *adap, u16 qid, u16 *pidx, u16 *cidx) __be64 indices; int ret; - ret = t4_mem_win_read_len(adap, addr, (__be32 *)&indices, 8); + spin_lock(&adap->win0_lock); + ret = t4_memory_rw(adap, 0, MEM_EDC0, addr, + sizeof(indices), (__be32 *)&indices, + T4_MEMORY_READ); + spin_unlock(&adap->win0_lock); if (!ret) { *cidx = (be64_to_cpu(indices) >> 25) & 0xffff; *pidx = (be64_to_cpu(indices) >> 9) & 0xffff; @@ -3657,6 +3837,85 @@ void cxgb4_enable_db_coalescing(struct net_device *dev) } EXPORT_SYMBOL(cxgb4_enable_db_coalescing); +int cxgb4_read_tpte(struct net_device *dev, u32 stag, __be32 *tpte) +{ + struct adapter *adap; + u32 offset, memtype, memaddr; + u32 edc0_size, edc1_size, mc0_size, mc1_size; + u32 edc0_end, edc1_end, mc0_end, mc1_end; + int ret; + + adap = netdev2adap(dev); + + offset = ((stag >> 8) * 32) + adap->vres.stag.start; + + /* Figure out where the offset lands in the Memory Type/Address scheme. + * This code assumes that the memory is laid out starting at offset 0 + * with no breaks as: EDC0, EDC1, MC0, MC1. All cards have both EDC0 + * and EDC1. Some cards will have neither MC0 nor MC1, most cards have + * MC0, and some have both MC0 and MC1. + */ + edc0_size = EDRAM_SIZE_GET(t4_read_reg(adap, MA_EDRAM0_BAR)) << 20; + edc1_size = EDRAM_SIZE_GET(t4_read_reg(adap, MA_EDRAM1_BAR)) << 20; + mc0_size = EXT_MEM_SIZE_GET(t4_read_reg(adap, MA_EXT_MEMORY_BAR)) << 20; + + edc0_end = edc0_size; + edc1_end = edc0_end + edc1_size; + mc0_end = edc1_end + mc0_size; + + if (offset < edc0_end) { + memtype = MEM_EDC0; + memaddr = offset; + } else if (offset < edc1_end) { + memtype = MEM_EDC1; + memaddr = offset - edc0_end; + } else { + if (offset < mc0_end) { + memtype = MEM_MC0; + memaddr = offset - edc1_end; + } else if (is_t4(adap->params.chip)) { + /* T4 only has a single memory channel */ + goto err; + } else { + mc1_size = EXT_MEM_SIZE_GET( + t4_read_reg(adap, + MA_EXT_MEMORY1_BAR)) << 20; + mc1_end = mc0_end + mc1_size; + if (offset < mc1_end) { + memtype = MEM_MC1; + memaddr = offset - mc0_end; + } else { + /* offset beyond the end of any memory */ + goto err; + } + } + } + + spin_lock(&adap->win0_lock); + ret = t4_memory_rw(adap, 0, memtype, memaddr, 32, tpte, T4_MEMORY_READ); + spin_unlock(&adap->win0_lock); + return ret; + +err: + dev_err(adap->pdev_dev, "stag %#x, offset %#x out of range\n", + stag, offset); + return -EINVAL; +} +EXPORT_SYMBOL(cxgb4_read_tpte); + +u64 cxgb4_read_sge_timestamp(struct net_device *dev) +{ + u32 hi, lo; + struct adapter *adap; + + adap = netdev2adap(dev); + lo = t4_read_reg(adap, SGE_TIMESTAMP_LO); + hi = GET_TSVAL(t4_read_reg(adap, SGE_TIMESTAMP_HI)); + + return ((u64)hi << 32) | (u64)lo; +} +EXPORT_SYMBOL(cxgb4_read_sge_timestamp); + static struct pci_driver cxgb4_driver; static void check_neigh_update(struct neighbour *neigh) @@ -3899,6 +4158,7 @@ static void uld_attach(struct adapter *adap, unsigned int uld) unsigned short i; lli.pdev = adap->pdev; + lli.pf = adap->fn; lli.l2t = adap->l2t; lli.tids = &adap->tids; lli.ports = adap->port; @@ -3919,6 +4179,7 @@ static void uld_attach(struct adapter *adap, unsigned int uld) lli.wr_cred = adap->params.ofldq_wr_cred; lli.adapter_type = adap->params.chip; lli.iscsi_iolen = MAXRXDATA_GET(t4_read_reg(adap, TP_PARA_REG2)); + lli.cclk_ps = 1000000000 / adap->params.vpd.cclk; lli.udb_density = 1 << QUEUESPERPAGEPF0_GET( t4_read_reg(adap, SGE_EGRESS_QUEUES_PER_PAGE_PF) >> (adap->fn * 4)); @@ -3933,8 +4194,12 @@ static void uld_attach(struct adapter *adap, unsigned int uld) lli.db_reg = adap->regs + MYPF_REG(SGE_PF_KDOORBELL); lli.fw_vers = adap->params.fw_vers; lli.dbfifo_int_thresh = dbfifo_int_thresh; + lli.sge_ingpadboundary = adap->sge.fl_align; + lli.sge_egrstatuspagesize = adap->sge.stat_len; lli.sge_pktshift = adap->sge.pktshift; lli.enable_fw_ofld_conn = adap->flags & FW_OFLD_CONN; + lli.max_ordird_qp = adap->params.max_ordird_qp; + lli.max_ird_adapter = adap->params.max_ird_adapter; lli.ulptx_memwrite_dsgl = adap->params.ulptx_memwrite_dsgl; handle = ulds[uld].add(&lli); @@ -4598,6 +4863,7 @@ static const struct net_device_ops cxgb4_netdev_ops = { .ndo_open = cxgb_open, .ndo_stop = cxgb_close, .ndo_start_xmit = t4_eth_xmit, + .ndo_select_queue = cxgb_select_queue, .ndo_get_stats64 = cxgb_get_stats, .ndo_set_rx_mode = cxgb_set_rxmode, .ndo_set_mac_address = cxgb_set_mac_addr, @@ -4617,20 +4883,75 @@ void t4_fatal_err(struct adapter *adap) dev_alert(adap->pdev_dev, "encountered fatal error, adapter stopped\n"); } +/* Return the specified PCI-E Configuration Space register from our Physical + * Function. We try first via a Firmware LDST Command since we prefer to let + * the firmware own all of these registers, but if that fails we go for it + * directly ourselves. + */ +static u32 t4_read_pcie_cfg4(struct adapter *adap, int reg) +{ + struct fw_ldst_cmd ldst_cmd; + u32 val; + int ret; + + /* Construct and send the Firmware LDST Command to retrieve the + * specified PCI-E Configuration Space register. + */ + memset(&ldst_cmd, 0, sizeof(ldst_cmd)); + ldst_cmd.op_to_addrspace = + htonl(FW_CMD_OP(FW_LDST_CMD) | + FW_CMD_REQUEST | + FW_CMD_READ | + FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_FUNC_PCIE)); + ldst_cmd.cycles_to_len16 = htonl(FW_LEN16(ldst_cmd)); + ldst_cmd.u.pcie.select_naccess = FW_LDST_CMD_NACCESS(1); + ldst_cmd.u.pcie.ctrl_to_fn = + (FW_LDST_CMD_LC | FW_LDST_CMD_FN(adap->fn)); + ldst_cmd.u.pcie.r = reg; + ret = t4_wr_mbox(adap, adap->mbox, &ldst_cmd, sizeof(ldst_cmd), + &ldst_cmd); + + /* If the LDST Command suucceeded, exctract the returned register + * value. Otherwise read it directly ourself. + */ + if (ret == 0) + val = ntohl(ldst_cmd.u.pcie.data[0]); + else + t4_hw_pci_read_cfg4(adap, reg, &val); + + return val; +} + static void setup_memwin(struct adapter *adap) { - u32 bar0, mem_win0_base, mem_win1_base, mem_win2_base; + u32 mem_win0_base, mem_win1_base, mem_win2_base, mem_win2_aperture; - bar0 = pci_resource_start(adap->pdev, 0); /* truncation intentional */ if (is_t4(adap->params.chip)) { + u32 bar0; + + /* Truncation intentional: we only read the bottom 32-bits of + * the 64-bit BAR0/BAR1 ... We use the hardware backdoor + * mechanism to read BAR0 instead of using + * pci_resource_start() because we could be operating from + * within a Virtual Machine which is trapping our accesses to + * our Configuration Space and we need to set up the PCI-E + * Memory Window decoders with the actual addresses which will + * be coming across the PCI-E link. + */ + bar0 = t4_read_pcie_cfg4(adap, PCI_BASE_ADDRESS_0); + bar0 &= PCI_BASE_ADDRESS_MEM_MASK; + adap->t4_bar0 = bar0; + mem_win0_base = bar0 + MEMWIN0_BASE; mem_win1_base = bar0 + MEMWIN1_BASE; mem_win2_base = bar0 + MEMWIN2_BASE; + mem_win2_aperture = MEMWIN2_APERTURE; } else { /* For T5, only relative offset inside the PCIe BAR is passed */ mem_win0_base = MEMWIN0_BASE; - mem_win1_base = MEMWIN1_BASE_T5; + mem_win1_base = MEMWIN1_BASE; mem_win2_base = MEMWIN2_BASE_T5; + mem_win2_aperture = MEMWIN2_APERTURE_T5; } t4_write_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 0), mem_win0_base | BIR(0) | @@ -4640,16 +4961,19 @@ static void setup_memwin(struct adapter *adap) WINDOW(ilog2(MEMWIN1_APERTURE) - 10)); t4_write_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 2), mem_win2_base | BIR(0) | - WINDOW(ilog2(MEMWIN2_APERTURE) - 10)); + WINDOW(ilog2(mem_win2_aperture) - 10)); + t4_read_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 2)); } static void setup_memwin_rdma(struct adapter *adap) { if (adap->vres.ocq.size) { - unsigned int start, sz_kb; + u32 start; + unsigned int sz_kb; - start = pci_resource_start(adap->pdev, 2) + - OCQ_WIN_OFFSET(adap->pdev, &adap->vres); + start = t4_read_pcie_cfg4(adap, PCI_BASE_ADDRESS_2); + start &= PCI_BASE_ADDRESS_MEM_MASK; + start += OCQ_WIN_OFFSET(adap->pdev, &adap->vres); sz_kb = roundup_pow_of_two(adap->vres.ocq.size) >> 10; t4_write_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 3), @@ -4862,7 +5186,7 @@ static int adap_init0_config(struct adapter *adapter, int reset) adapter->fn, 0, 1, params, val); if (ret == 0) { /* - * For t4_memory_write() below addresses and + * For t4_memory_rw() below addresses and * sizes have to be in terms of multiples of 4 * bytes. So, if the Configuration File isn't * a multiple of 4 bytes in length we'll have @@ -4878,8 +5202,9 @@ static int adap_init0_config(struct adapter *adapter, int reset) mtype = FW_PARAMS_PARAM_Y_GET(val[0]); maddr = FW_PARAMS_PARAM_Z_GET(val[0]) << 16; - ret = t4_memory_write(adapter, mtype, maddr, - size, data); + spin_lock(&adapter->win0_lock); + ret = t4_memory_rw(adapter, 0, mtype, maddr, + size, data, T4_MEMORY_WRITE); if (ret == 0 && resid != 0) { union { __be32 word; @@ -4890,10 +5215,12 @@ static int adap_init0_config(struct adapter *adapter, int reset) last.word = data[size >> 2]; for (i = resid; i < 4; i++) last.buf[i] = 0; - ret = t4_memory_write(adapter, mtype, - maddr + size, - 4, &last.word); + ret = t4_memory_rw(adapter, 0, mtype, + maddr + size, + 4, &last.word, + T4_MEMORY_WRITE); } + spin_unlock(&adapter->win0_lock); } } @@ -5637,6 +5964,22 @@ static int adap_init0(struct adapter *adap) adap->vres.cq.size = val[3] - val[2] + 1; adap->vres.ocq.start = val[4]; adap->vres.ocq.size = val[5] - val[4] + 1; + + params[0] = FW_PARAM_DEV(MAXORDIRD_QP); + params[1] = FW_PARAM_DEV(MAXIRD_ADAPTER); + ret = t4_query_params(adap, 0, 0, 0, 2, params, val); + if (ret < 0) { + adap->params.max_ordird_qp = 8; + adap->params.max_ird_adapter = 32 * adap->tids.ntids; + ret = 0; + } else { + adap->params.max_ordird_qp = val[0]; + adap->params.max_ird_adapter = val[1]; + } + dev_info(adap->pdev_dev, + "max_ordird_qp %d max_ird_adapter %d\n", + adap->params.max_ordird_qp, + adap->params.max_ird_adapter); } if (caps_cmd.iscsicaps) { params[0] = FW_PARAM_PFVF(ISCSI_START); @@ -5838,12 +6181,33 @@ static inline void init_rspq(struct adapter *adap, struct sge_rspq *q, static void cfg_queues(struct adapter *adap) { struct sge *s = &adap->sge; - int i, q10g = 0, n10g = 0, qidx = 0; + int i, n10g = 0, qidx = 0; +#ifndef CONFIG_CHELSIO_T4_DCB + int q10g = 0; +#endif int ciq_size; for_each_port(adap, i) n10g += is_x_10g_port(&adap2pinfo(adap, i)->link_cfg); +#ifdef CONFIG_CHELSIO_T4_DCB + /* For Data Center Bridging support we need to be able to support up + * to 8 Traffic Priorities; each of which will be assigned to its + * own TX Queue in order to prevent Head-Of-Line Blocking. + */ + if (adap->params.nports * 8 > MAX_ETH_QSETS) { + dev_err(adap->pdev_dev, "MAX_ETH_QSETS=%d < %d!\n", + MAX_ETH_QSETS, adap->params.nports * 8); + BUG_ON(1); + } + for_each_port(adap, i) { + struct port_info *pi = adap2pinfo(adap, i); + + pi->first_qset = qidx; + pi->nqsets = 8; + qidx += pi->nqsets; + } +#else /* !CONFIG_CHELSIO_T4_DCB */ /* * We default to 1 queue per non-10G port and up to # of cores queues * per 10G port. @@ -5860,6 +6224,7 @@ static void cfg_queues(struct adapter *adap) pi->nqsets = is_x_10g_port(&pi->link_cfg) ? q10g : 1; qidx += pi->nqsets; } +#endif /* !CONFIG_CHELSIO_T4_DCB */ s->ethqsets = qidx; s->max_ethqsets = qidx; /* MSI-X may lower it later */ @@ -5978,8 +6343,14 @@ static int enable_msix(struct adapter *adap) /* need nchan for each possible ULD */ ofld_need = 3 * nchan; } +#ifdef CONFIG_CHELSIO_T4_DCB + /* For Data Center Bridging we need 8 Ethernet TX Priority Queues for + * each port. + */ + need = 8 * adap->params.nports + EXTRA_VECS + ofld_need; +#else need = adap->params.nports + EXTRA_VECS + ofld_need; - +#endif want = pci_enable_msix_range(adap->pdev, entries, need, want); if (want < 0) return want; @@ -6111,13 +6482,6 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent) return err; } - /* We control everything through one PF */ - func = PCI_FUNC(pdev->devfn); - if (func != ent->driver_data) { - pci_save_state(pdev); /* to restore SR-IOV later */ - goto sriov; - } - err = pci_enable_device(pdev); if (err) { dev_err(&pdev->dev, "cannot enable PCI device\n"); @@ -6161,6 +6525,15 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent) goto out_free_adapter; } + /* We control everything through one PF */ + func = SOURCEPF_GET(readl(adapter->regs + PL_WHOAMI)); + if ((pdev->device == 0xa000 && func != 0) || + func != ent->driver_data) { + pci_save_state(pdev); /* to restore SR-IOV later */ + err = 0; + goto out_unmap_bar0; + } + adapter->pdev = pdev; adapter->pdev_dev = &pdev->dev; adapter->mbox = func; @@ -6242,6 +6615,10 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent) netdev->priv_flags |= IFF_UNICAST_FLT; netdev->netdev_ops = &cxgb4_netdev_ops; +#ifdef CONFIG_CHELSIO_T4_DCB + netdev->dcbnl_ops = &cxgb4_dcb_ops; + cxgb4_dcb_state_init(netdev); +#endif netdev->ethtool_ops = &cxgb_ethtool_ops; } @@ -6320,7 +6697,6 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (is_offload(adapter)) attach_ulds(adapter); -sriov: #ifdef CONFIG_PCI_IOV if (func < ARRAY_SIZE(num_vf) && num_vf[func] > 0) if (pci_enable_sriov(pdev, num_vf[func]) == 0) @@ -6366,8 +6742,7 @@ static void remove_one(struct pci_dev *pdev) if (adapter->port[i]->reg_state == NETREG_REGISTERED) unregister_netdev(adapter->port[i]); - if (adapter->debugfs_root) - debugfs_remove_recursive(adapter->debugfs_root); + debugfs_remove_recursive(adapter->debugfs_root); /* If we allocated filters, free up state associated with any * valid filters ... |