diff options
Diffstat (limited to 'drivers/net/via-velocity.c')
| -rw-r--r-- | drivers/net/via-velocity.c | 405 |
1 files changed, 277 insertions, 128 deletions
diff --git a/drivers/net/via-velocity.c b/drivers/net/via-velocity.c index e04e5be..4ceb441 100644 --- a/drivers/net/via-velocity.c +++ b/drivers/net/via-velocity.c @@ -9,7 +9,6 @@ * * TODO * rx_copybreak/alignment - * Scatter gather * More testing * * The changes are (c) Copyright 2004, Red Hat Inc. <alan@lxorguk.ukuu.org.uk> @@ -275,7 +274,7 @@ VELOCITY_PARAM(rx_thresh, "Receive fifo threshold"); #define DMA_LENGTH_MIN 0 #define DMA_LENGTH_MAX 7 -#define DMA_LENGTH_DEF 0 +#define DMA_LENGTH_DEF 6 /* DMA_length[] is used for controlling the DMA length 0: 8 DWORDs @@ -298,14 +297,6 @@ VELOCITY_PARAM(DMA_length, "DMA length"); */ VELOCITY_PARAM(IP_byte_align, "Enable IP header dword aligned"); -#define TX_CSUM_DEF 1 -/* txcsum_offload[] is used for setting the checksum offload ability of NIC. - (We only support RX checksum offload now) - 0: disable csum_offload[checksum offload - 1: enable checksum offload. (Default) -*/ -VELOCITY_PARAM(txcsum_offload, "Enable transmit packet checksum offload"); - #define FLOW_CNTL_DEF 1 #define FLOW_CNTL_MIN 1 #define FLOW_CNTL_MAX 5 @@ -354,21 +345,10 @@ VELOCITY_PARAM(ValPktLen, "Receiving or Drop invalid 802.3 frame"); */ VELOCITY_PARAM(wol_opts, "Wake On Lan options"); -#define INT_WORKS_DEF 20 -#define INT_WORKS_MIN 10 -#define INT_WORKS_MAX 64 - -VELOCITY_PARAM(int_works, "Number of packets per interrupt services"); - static int rx_copybreak = 200; module_param(rx_copybreak, int, 0644); MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames"); -#ifdef CONFIG_PM -static DEFINE_SPINLOCK(velocity_dev_list_lock); -static LIST_HEAD(velocity_dev_list); -#endif - /* * Internal board variants. At the moment we have only one */ @@ -417,14 +397,6 @@ static void __devexit velocity_remove1(struct pci_dev *pdev) struct net_device *dev = pci_get_drvdata(pdev); struct velocity_info *vptr = netdev_priv(dev); -#ifdef CONFIG_PM - unsigned long flags; - - spin_lock_irqsave(&velocity_dev_list_lock, flags); - if (!list_empty(&velocity_dev_list)) - list_del(&vptr->list); - spin_unlock_irqrestore(&velocity_dev_list_lock, flags); -#endif unregister_netdev(dev); iounmap(vptr->mac_regs); pci_release_regions(pdev); @@ -510,13 +482,11 @@ static void __devinit velocity_get_options(struct velocity_opt *opts, int index, velocity_set_int_opt(&opts->numrx, RxDescriptors[index], RX_DESC_MIN, RX_DESC_MAX, RX_DESC_DEF, "RxDescriptors", devname); velocity_set_int_opt(&opts->numtx, TxDescriptors[index], TX_DESC_MIN, TX_DESC_MAX, TX_DESC_DEF, "TxDescriptors", devname); - velocity_set_bool_opt(&opts->flags, txcsum_offload[index], TX_CSUM_DEF, VELOCITY_FLAGS_TX_CSUM, "txcsum_offload", devname); velocity_set_int_opt(&opts->flow_cntl, flow_control[index], FLOW_CNTL_MIN, FLOW_CNTL_MAX, FLOW_CNTL_DEF, "flow_control", devname); velocity_set_bool_opt(&opts->flags, IP_byte_align[index], IP_ALIG_DEF, VELOCITY_FLAGS_IP_ALIGN, "IP_byte_align", devname); velocity_set_bool_opt(&opts->flags, ValPktLen[index], VAL_PKT_LEN_DEF, VELOCITY_FLAGS_VAL_PKT_LEN, "ValPktLen", devname); velocity_set_int_opt((int *) &opts->spd_dpx, speed_duplex[index], MED_LNK_MIN, MED_LNK_MAX, MED_LNK_DEF, "Media link mode", devname); velocity_set_int_opt((int *) &opts->wol_opts, wol_opts[index], WOL_OPT_MIN, WOL_OPT_MAX, WOL_OPT_DEF, "Wake On Lan options", devname); - velocity_set_int_opt((int *) &opts->int_works, int_works[index], INT_WORKS_MIN, INT_WORKS_MAX, INT_WORKS_DEF, "Interrupt service works", devname); opts->numrx = (opts->numrx & ~3); } @@ -925,8 +895,8 @@ static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status) /* Check if new status is consisent with current status - if (((mii_status & curr_status) & VELOCITY_AUTONEG_ENABLE) - || (mii_status==curr_status)) { + if (((mii_status & curr_status) & VELOCITY_AUTONEG_ENABLE) || + (mii_status==curr_status)) { vptr->mii_status=mii_check_media_mode(vptr->mac_regs); vptr->mii_status=check_connection_type(vptr->mac_regs); VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity link no change\n"); @@ -1162,8 +1132,8 @@ static void velocity_set_multi(struct net_device *dev) writel(0xffffffff, ®s->MARCAM[0]); writel(0xffffffff, ®s->MARCAM[4]); rx_mode = (RCR_AM | RCR_AB | RCR_PROM); - } else if ((dev->mc_count > vptr->multicast_limit) - || (dev->flags & IFF_ALLMULTI)) { + } else if ((dev->mc_count > vptr->multicast_limit) || + (dev->flags & IFF_ALLMULTI)) { writel(0xffffffff, ®s->MARCAM[0]); writel(0xffffffff, ®s->MARCAM[4]); rx_mode = (RCR_AM | RCR_AB); @@ -1259,6 +1229,66 @@ static void mii_init(struct velocity_info *vptr, u32 mii_status) } } +/** + * setup_queue_timers - Setup interrupt timers + * + * Setup interrupt frequency during suppression (timeout if the frame + * count isn't filled). + */ +static void setup_queue_timers(struct velocity_info *vptr) +{ + /* Only for newer revisions */ + if (vptr->rev_id >= REV_ID_VT3216_A0) { + u8 txqueue_timer = 0; + u8 rxqueue_timer = 0; + + if (vptr->mii_status & (VELOCITY_SPEED_1000 | + VELOCITY_SPEED_100)) { + txqueue_timer = vptr->options.txqueue_timer; + rxqueue_timer = vptr->options.rxqueue_timer; + } + + writeb(txqueue_timer, &vptr->mac_regs->TQETMR); + writeb(rxqueue_timer, &vptr->mac_regs->RQETMR); + } +} +/** + * setup_adaptive_interrupts - Setup interrupt suppression + * + * @vptr velocity adapter + * + * The velocity is able to suppress interrupt during high interrupt load. + * This function turns on that feature. + */ +static void setup_adaptive_interrupts(struct velocity_info *vptr) +{ + struct mac_regs __iomem *regs = vptr->mac_regs; + u16 tx_intsup = vptr->options.tx_intsup; + u16 rx_intsup = vptr->options.rx_intsup; + + /* Setup default interrupt mask (will be changed below) */ + vptr->int_mask = INT_MASK_DEF; + + /* Set Tx Interrupt Suppression Threshold */ + writeb(CAMCR_PS0, ®s->CAMCR); + if (tx_intsup != 0) { + vptr->int_mask &= ~(ISR_PTXI | ISR_PTX0I | ISR_PTX1I | + ISR_PTX2I | ISR_PTX3I); + writew(tx_intsup, ®s->ISRCTL); + } else + writew(ISRCTL_TSUPDIS, ®s->ISRCTL); + + /* Set Rx Interrupt Suppression Threshold */ + writeb(CAMCR_PS1, ®s->CAMCR); + if (rx_intsup != 0) { + vptr->int_mask &= ~ISR_PRXI; + writew(rx_intsup, ®s->ISRCTL); + } else + writew(ISRCTL_RSUPDIS, ®s->ISRCTL); + + /* Select page to interrupt hold timer */ + writeb(0, ®s->CAMCR); +} /** * velocity_init_registers - initialise MAC registers @@ -1345,7 +1375,7 @@ static void velocity_init_registers(struct velocity_info *vptr, */ enable_mii_autopoll(regs); - vptr->int_mask = INT_MASK_DEF; + setup_adaptive_interrupts(vptr); writel(vptr->rx.pool_dma, ®s->RDBaseLo); writew(vptr->options.numrx - 1, ®s->RDCSize); @@ -1483,7 +1513,8 @@ static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx) * Do the gymnastics to get the buffer head for data at * 64byte alignment. */ - skb_reserve(rd_info->skb, (unsigned long) rd_info->skb->data & 63); + skb_reserve(rd_info->skb, + 64 - ((unsigned long) rd_info->skb->data & 63)); rd_info->skb_dma = pci_map_single(vptr->pdev, rd_info->skb->data, vptr->rx.buf_sz, PCI_DMA_FROMDEVICE); @@ -1602,12 +1633,10 @@ out: */ static int velocity_init_td_ring(struct velocity_info *vptr) { - dma_addr_t curr; int j; /* Init the TD ring entries */ for (j = 0; j < vptr->tx.numq; j++) { - curr = vptr->tx.pool_dma[j]; vptr->tx.infos[j] = kcalloc(vptr->options.numtx, sizeof(struct velocity_td_info), @@ -1673,21 +1702,27 @@ err_free_dma_rings_0: * Release an transmit buffer. If the buffer was preallocated then * recycle it, if not then unmap the buffer. */ -static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *tdinfo) +static void velocity_free_tx_buf(struct velocity_info *vptr, + struct velocity_td_info *tdinfo, struct tx_desc *td) { struct sk_buff *skb = tdinfo->skb; - int i; - int pktlen; /* * Don't unmap the pre-allocated tx_bufs */ if (tdinfo->skb_dma) { + int i; - pktlen = max_t(unsigned int, skb->len, ETH_ZLEN); for (i = 0; i < tdinfo->nskb_dma; i++) { - pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], pktlen, PCI_DMA_TODEVICE); - tdinfo->skb_dma[i] = 0; + size_t pktlen = max_t(size_t, skb->len, ETH_ZLEN); + + /* For scatter-gather */ + if (skb_shinfo(skb)->nr_frags > 0) + pktlen = max_t(size_t, pktlen, + td->td_buf[i].size & ~TD_QUEUE); + + pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], + le16_to_cpu(pktlen), PCI_DMA_TODEVICE); } } dev_kfree_skb_irq(skb); @@ -1801,6 +1836,8 @@ static void velocity_error(struct velocity_info *vptr, int status) BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG); else BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG); + + setup_queue_timers(vptr); } /* * Get link status from PHYSR0 @@ -1887,7 +1924,7 @@ static int velocity_tx_srv(struct velocity_info *vptr, u32 status) stats->tx_packets++; stats->tx_bytes += tdinfo->skb->len; } - velocity_free_tx_buf(vptr, tdinfo); + velocity_free_tx_buf(vptr, tdinfo, td); vptr->tx.used[qnum]--; } vptr->tx.tail[qnum] = idx; @@ -1899,8 +1936,8 @@ static int velocity_tx_srv(struct velocity_info *vptr, u32 status) * Look to see if we should kick the transmit network * layer for more work. */ - if (netif_queue_stopped(vptr->dev) && (full == 0) - && (!(vptr->mii_status & VELOCITY_LINK_FAIL))) { + if (netif_queue_stopped(vptr->dev) && (full == 0) && + (!(vptr->mii_status & VELOCITY_LINK_FAIL))) { netif_wake_queue(vptr->dev); } return works; @@ -1949,10 +1986,9 @@ static int velocity_rx_copy(struct sk_buff **rx_skb, int pkt_size, if (pkt_size < rx_copybreak) { struct sk_buff *new_skb; - new_skb = netdev_alloc_skb(vptr->dev, pkt_size + 2); + new_skb = netdev_alloc_skb_ip_align(vptr->dev, pkt_size); if (new_skb) { new_skb->ip_summed = rx_skb[0]->ip_summed; - skb_reserve(new_skb, 2); skb_copy_from_linear_data(*rx_skb, new_skb->data, pkt_size); *rx_skb = new_skb; ret = 0; @@ -2060,13 +2096,14 @@ static int velocity_receive_frame(struct velocity_info *vptr, int idx) * any received packets from the receive queue. Hand the ring * slots back to the adapter for reuse. */ -static int velocity_rx_srv(struct velocity_info *vptr, int status) +static int velocity_rx_srv(struct velocity_info *vptr, int status, + int budget_left) { struct net_device_stats *stats = &vptr->dev->stats; int rd_curr = vptr->rx.curr; int works = 0; - do { + while (works < budget_left) { struct rx_desc *rd = vptr->rx.ring + rd_curr; if (!vptr->rx.info[rd_curr].skb) @@ -2097,7 +2134,8 @@ static int velocity_rx_srv(struct velocity_info *vptr, int status) rd_curr++; if (rd_curr >= vptr->options.numrx) rd_curr = 0; - } while (++works <= 15); + works++; + } vptr->rx.curr = rd_curr; @@ -2108,6 +2146,40 @@ static int velocity_rx_srv(struct velocity_info *vptr, int status) return works; } +static int velocity_poll(struct napi_struct *napi, int budget) +{ + struct velocity_info *vptr = container_of(napi, + struct velocity_info, napi); + unsigned int rx_done; + u32 isr_status; + + spin_lock(&vptr->lock); + isr_status = mac_read_isr(vptr->mac_regs); + + /* Ack the interrupt */ + mac_write_isr(vptr->mac_regs, isr_status); + if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI))) + velocity_error(vptr, isr_status); + + /* + * Do rx and tx twice for performance (taken from the VIA + * out-of-tree driver). + */ + rx_done = velocity_rx_srv(vptr, isr_status, budget / 2); + velocity_tx_srv(vptr, isr_status); + rx_done += velocity_rx_srv(vptr, isr_status, budget - rx_done); + velocity_tx_srv(vptr, isr_status); + + spin_unlock(&vptr->lock); + + /* If budget not fully consumed, exit the polling mode */ + if (rx_done < budget) { + napi_complete(napi); + mac_enable_int(vptr->mac_regs); + } + + return rx_done; +} /** * velocity_intr - interrupt callback @@ -2124,8 +2196,6 @@ static irqreturn_t velocity_intr(int irq, void *dev_instance) struct net_device *dev = dev_instance; struct velocity_info *vptr = netdev_priv(dev); u32 isr_status; - int max_count = 0; - spin_lock(&vptr->lock); isr_status = mac_read_isr(vptr->mac_regs); @@ -2136,32 +2206,13 @@ static irqreturn_t velocity_intr(int irq, void *dev_instance) return IRQ_NONE; } - mac_disable_int(vptr->mac_regs); - - /* - * Keep processing the ISR until we have completed - * processing and the isr_status becomes zero - */ - - while (isr_status != 0) { - mac_write_isr(vptr->mac_regs, isr_status); - if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI))) - velocity_error(vptr, isr_status); - if (isr_status & (ISR_PRXI | ISR_PPRXI)) - max_count += velocity_rx_srv(vptr, isr_status); - if (isr_status & (ISR_PTXI | ISR_PPTXI)) - max_count += velocity_tx_srv(vptr, isr_status); - isr_status = mac_read_isr(vptr->mac_regs); - if (max_count > vptr->options.int_works) { - printk(KERN_WARNING "%s: excessive work at interrupt.\n", - dev->name); - max_count = 0; - } + if (likely(napi_schedule_prep(&vptr->napi))) { + mac_disable_int(vptr->mac_regs); + __napi_schedule(&vptr->napi); } spin_unlock(&vptr->lock); - mac_enable_int(vptr->mac_regs); - return IRQ_HANDLED; + return IRQ_HANDLED; } /** @@ -2190,7 +2241,7 @@ static int velocity_open(struct net_device *dev) velocity_init_registers(vptr, VELOCITY_INIT_COLD); - ret = request_irq(vptr->pdev->irq, &velocity_intr, IRQF_SHARED, + ret = request_irq(vptr->pdev->irq, velocity_intr, IRQF_SHARED, dev->name, dev); if (ret < 0) { /* Power down the chip */ @@ -2201,6 +2252,7 @@ static int velocity_open(struct net_device *dev) mac_enable_int(vptr->mac_regs); netif_start_queue(dev); + napi_enable(&vptr->napi); vptr->flags |= VELOCITY_FLAGS_OPENED; out: return ret; @@ -2436,6 +2488,7 @@ static int velocity_close(struct net_device *dev) { struct velocity_info *vptr = netdev_priv(dev); + napi_disable(&vptr->napi); netif_stop_queue(dev); velocity_shutdown(vptr); @@ -2470,14 +2523,22 @@ static netdev_tx_t velocity_xmit(struct sk_buff *skb, struct velocity_td_info *tdinfo; unsigned long flags; int pktlen; - __le16 len; - int index; + int index, prev; + int i = 0; if (skb_padto(skb, ETH_ZLEN)) goto out; - pktlen = max_t(unsigned int, skb->len, ETH_ZLEN); - len = cpu_to_le16(pktlen); + /* The hardware can handle at most 7 memory segments, so merge + * the skb if there are more */ + if (skb_shinfo(skb)->nr_frags > 6 && __skb_linearize(skb)) { + kfree_skb(skb); + return NETDEV_TX_OK; + } + + pktlen = skb_shinfo(skb)->nr_frags == 0 ? + max_t(unsigned int, skb->len, ETH_ZLEN) : + skb_headlen(skb); spin_lock_irqsave(&vptr->lock, flags); @@ -2494,11 +2555,24 @@ static netdev_tx_t velocity_xmit(struct sk_buff *skb, */ tdinfo->skb = skb; tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE); - td_ptr->tdesc0.len = len; + td_ptr->tdesc0.len = cpu_to_le16(pktlen); td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]); td_ptr->td_buf[0].pa_high = 0; - td_ptr->td_buf[0].size = len; - tdinfo->nskb_dma = 1; + td_ptr->td_buf[0].size = cpu_to_le16(pktlen); + + /* Handle fragments */ + for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { + skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; + + tdinfo->skb_dma[i + 1] = pci_map_page(vptr->pdev, frag->page, + frag->page_offset, frag->size, + PCI_DMA_TODEVICE); + + td_ptr->td_buf[i + 1].pa_low = cpu_to_le32(tdinfo->skb_dma[i + 1]); + td_ptr->td_buf[i + 1].pa_high = 0; + td_ptr->td_buf[i + 1].size = cpu_to_le16(frag->size); + } + tdinfo->nskb_dma = i + 1; td_ptr->tdesc1.cmd = TCPLS_NORMAL + (tdinfo->nskb_dma + 1) * 16; @@ -2510,8 +2584,8 @@ static netdev_tx_t velocity_xmit(struct sk_buff *skb, /* * Handle hardware checksum */ - if ((vptr->flags & VELOCITY_FLAGS_TX_CSUM) - && (skb->ip_summed == CHECKSUM_PARTIAL)) { + if ((dev->features & NETIF_F_IP_CSUM) && + (skb->ip_summed == CHECKSUM_PARTIAL)) { const struct iphdr *ip = ip_hdr(skb); if (ip->protocol == IPPROTO_TCP) td_ptr->tdesc1.TCR |= TCR0_TCPCK; @@ -2519,23 +2593,21 @@ static netdev_tx_t velocity_xmit(struct sk_buff *skb, td_ptr->tdesc1.TCR |= (TCR0_UDPCK); td_ptr->tdesc1.TCR |= TCR0_IPCK; } - { - int prev = index - 1; + prev = index - 1; + if (prev < 0) + prev = vptr->options.numtx - 1; + td_ptr->tdesc0.len |= OWNED_BY_NIC; + vptr->tx.used[qnum]++; + vptr->tx.curr[qnum] = (index + 1) % vptr->options.numtx; - if (prev < 0) - prev = vptr->options.numtx - 1; - td_ptr->tdesc0.len |= OWNED_BY_NIC; - vptr->tx.used[qnum]++; - vptr->tx.curr[qnum] = (index + 1) % vptr->options.numtx; + if (AVAIL_TD(vptr, qnum) < 1) + netif_stop_queue(dev); - if (AVAIL_TD(vptr, qnum) < 1) - netif_stop_queue(dev); + td_ptr = &(vptr->tx.rings[qnum][prev]); + td_ptr->td_buf[0].size |= TD_QUEUE; + mac_tx_queue_wake(vptr->mac_regs, qnum); - td_ptr = &(vptr->tx.rings[qnum][prev]); - td_ptr->td_buf[0].size |= TD_QUEUE; - mac_tx_queue_wake(vptr->mac_regs, qnum); - } dev->trans_start = jiffies; spin_unlock_irqrestore(&vptr->lock, flags); out: @@ -2578,7 +2650,6 @@ static void __devinit velocity_init_info(struct pci_dev *pdev, vptr->tx.numq = info->txqueue; vptr->multicast_limit = MCAM_SIZE; spin_lock_init(&vptr->lock); - INIT_LIST_HEAD(&vptr->list); } /** @@ -2755,12 +2826,10 @@ static int __devinit velocity_found1(struct pci_dev *pdev, const struct pci_devi dev->irq = pdev->irq; dev->netdev_ops = &velocity_netdev_ops; dev->ethtool_ops = &velocity_ethtool_ops; + netif_napi_add(dev, &vptr->napi, velocity_poll, VELOCITY_NAPI_WEIGHT); dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER | - NETIF_F_HW_VLAN_RX; - - if (vptr->flags & VELOCITY_FLAGS_TX_CSUM) - dev->features |= NETIF_F_IP_CSUM; + NETIF_F_HW_VLAN_RX | NETIF_F_IP_CSUM; ret = register_netdev(dev); if (ret < 0) @@ -2777,15 +2846,6 @@ static int __devinit velocity_found1(struct pci_dev *pdev, const struct pci_devi /* and leave the chip powered down */ pci_set_power_state(pdev, PCI_D3hot); -#ifdef CONFIG_PM - { - unsigned long flags; - - spin_lock_irqsave(&velocity_dev_list_lock, flags); - list_add(&vptr->list, &velocity_dev_list); - spin_unlock_irqrestore(&velocity_dev_list_lock, flags); - } -#endif velocity_nics++; out: return ret; @@ -3222,15 +3282,114 @@ static void velocity_set_msglevel(struct net_device *dev, u32 value) msglevel = value; } +static int get_pending_timer_val(int val) +{ + int mult_bits = val >> 6; + int mult = 1; + + switch (mult_bits) + { + case 1: + mult = 4; break; + case 2: + mult = 16; break; + case 3: + mult = 64; break; + case 0: + default: + break; + } + + return (val & 0x3f) * mult; +} + +static void set_pending_timer_val(int *val, u32 us) +{ + u8 mult = 0; + u8 shift = 0; + + if (us >= 0x3f) { + mult = 1; /* mult with 4 */ + shift = 2; + } + if (us >= 0x3f * 4) { + mult = 2; /* mult with 16 */ + shift = 4; + } + if (us >= 0x3f * 16) { + mult = 3; /* mult with 64 */ + shift = 6; + } + + *val = (mult << 6) | ((us >> shift) & 0x3f); +} + + +static int velocity_get_coalesce(struct net_device *dev, + struct ethtool_coalesce *ecmd) +{ + struct velocity_info *vptr = netdev_priv(dev); + + ecmd->tx_max_coalesced_frames = vptr->options.tx_intsup; + ecmd->rx_max_coalesced_frames = vptr->options.rx_intsup; + + ecmd->rx_coalesce_usecs = get_pending_timer_val(vptr->options.rxqueue_timer); + ecmd->tx_coalesce_usecs = get_pending_timer_val(vptr->options.txqueue_timer); + + return 0; +} + +static int velocity_set_coalesce(struct net_device *dev, + struct ethtool_coalesce *ecmd) +{ + struct velocity_info *vptr = netdev_priv(dev); + int max_us = 0x3f * 64; + + /* 6 bits of */ + if (ecmd->tx_coalesce_usecs > max_us) + return -EINVAL; + if (ecmd->rx_coalesce_usecs > max_us) + return -EINVAL; + + if (ecmd->tx_max_coalesced_frames > 0xff) + return -EINVAL; + if (ecmd->rx_max_coalesced_frames > 0xff) + return -EINVAL; + + vptr->options.rx_intsup = ecmd->rx_max_coalesced_frames; + vptr->options.tx_intsup = ecmd->tx_max_coalesced_frames; + + set_pending_timer_val(&vptr->options.rxqueue_timer, + ecmd->rx_coalesce_usecs); + set_pending_timer_val(&vptr->options.txqueue_timer, + ecmd->tx_coalesce_usecs); + + /* Setup the interrupt suppression and queue timers */ + mac_disable_int(vptr->mac_regs); + setup_adaptive_interrupts(vptr); + setup_queue_timers(vptr); + + mac_write_int_mask(vptr->int_mask, vptr->mac_regs); + mac_clear_isr(vptr->mac_regs); + mac_enable_int(vptr->mac_regs); + + return 0; +} + static const struct ethtool_ops velocity_ethtool_ops = { .get_settings = velocity_get_settings, .set_settings = velocity_set_settings, .get_drvinfo = velocity_get_drvinfo, + .set_tx_csum = ethtool_op_set_tx_csum, + .get_tx_csum = ethtool_op_get_tx_csum, .get_wol = velocity_ethtool_get_wol, .set_wol = velocity_ethtool_set_wol, .get_msglevel = velocity_get_msglevel, .set_msglevel = velocity_set_msglevel, + .set_sg = ethtool_op_set_sg, .get_link = velocity_get_link, + .get_coalesce = velocity_get_coalesce, + .set_coalesce = velocity_set_coalesce, .begin = velocity_ethtool_up, .complete = velocity_ethtool_down }; @@ -3241,20 +3400,10 @@ static int velocity_netdev_event(struct notifier_block *nb, unsigned long notifi { struct in_ifaddr *ifa = (struct in_ifaddr *) ptr; struct net_device *dev = ifa->ifa_dev->dev; - struct velocity_info *vptr; - unsigned long flags; - if (dev_net(dev) != &init_net) - return NOTIFY_DONE; - - spin_lock_irqsave(&velocity_dev_list_lock, flags); - list_for_each_entry(vptr, &velocity_dev_list, list) { - if (vptr->dev == dev) { - velocity_get_ip(vptr); - break; - } - } - spin_unlock_irqrestore(&velocity_dev_list_lock, flags); + if (dev_net(dev) == &init_net && + dev->netdev_ops == &velocity_netdev_ops) + velocity_get_ip(netdev_priv(dev)); return NOTIFY_DONE; } |
