diff options
Diffstat (limited to 'drivers/net/myri10ge/myri10ge.c')
| -rw-r--r-- | drivers/net/myri10ge/myri10ge.c | 49 |
1 files changed, 38 insertions, 11 deletions
diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c index fb2c0927d3cc..8524cc40ec57 100644 --- a/drivers/net/myri10ge/myri10ge.c +++ b/drivers/net/myri10ge/myri10ge.c @@ -225,6 +225,7 @@ struct myri10ge_priv { struct msix_entry *msix_vectors; #ifdef CONFIG_MYRI10GE_DCA int dca_enabled; + int relaxed_order; #endif u32 link_state; unsigned int rdma_tags_available; @@ -990,7 +991,7 @@ static int myri10ge_reset(struct myri10ge_priv *mgp) * RX queues, so if we get an error, first retry using a * single TX queue before giving up */ if (status != 0 && mgp->dev->real_num_tx_queues > 1) { - mgp->dev->real_num_tx_queues = 1; + netif_set_real_num_tx_queues(mgp->dev, 1); cmd.data0 = mgp->num_slices; cmd.data1 = MXGEFW_SLICE_INTR_MODE_ONE_PER_SLICE; status = myri10ge_send_cmd(mgp, @@ -1074,10 +1075,28 @@ static int myri10ge_reset(struct myri10ge_priv *mgp) } #ifdef CONFIG_MYRI10GE_DCA +static int myri10ge_toggle_relaxed(struct pci_dev *pdev, int on) +{ + int ret, cap, err; + u16 ctl; + + cap = pci_find_capability(pdev, PCI_CAP_ID_EXP); + if (!cap) + return 0; + + err = pci_read_config_word(pdev, cap + PCI_EXP_DEVCTL, &ctl); + ret = (ctl & PCI_EXP_DEVCTL_RELAX_EN) >> 4; + if (ret != on) { + ctl &= ~PCI_EXP_DEVCTL_RELAX_EN; + ctl |= (on << 4); + pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL, ctl); + } + return ret; +} + static void myri10ge_write_dca(struct myri10ge_slice_state *ss, int cpu, int tag) { - ss->cpu = cpu; ss->cached_dca_tag = tag; put_be32(htonl(tag), ss->dca_tag); } @@ -1088,9 +1107,10 @@ static inline void myri10ge_update_dca(struct myri10ge_slice_state *ss) int tag; if (cpu != ss->cpu) { - tag = dca_get_tag(cpu); + tag = dca3_get_tag(&ss->mgp->pdev->dev, cpu); if (ss->cached_dca_tag != tag) myri10ge_write_dca(ss, cpu, tag); + ss->cpu = cpu; } put_cpu(); } @@ -1113,9 +1133,13 @@ static void myri10ge_setup_dca(struct myri10ge_priv *mgp) "dca_add_requester() failed, err=%d\n", err); return; } + mgp->relaxed_order = myri10ge_toggle_relaxed(pdev, 0); mgp->dca_enabled = 1; - for (i = 0; i < mgp->num_slices; i++) - myri10ge_write_dca(&mgp->ss[i], -1, 0); + for (i = 0; i < mgp->num_slices; i++) { + mgp->ss[i].cpu = -1; + mgp->ss[i].cached_dca_tag = -1; + myri10ge_update_dca(&mgp->ss[i]); + } } static void myri10ge_teardown_dca(struct myri10ge_priv *mgp) @@ -1126,6 +1150,8 @@ static void myri10ge_teardown_dca(struct myri10ge_priv *mgp) if (!mgp->dca_enabled) return; mgp->dca_enabled = 0; + if (mgp->relaxed_order) + myri10ge_toggle_relaxed(pdev, 1); err = dca_remove_requester(&pdev->dev); } @@ -1555,12 +1581,12 @@ static irqreturn_t myri10ge_intr(int irq, void *arg) * valid since MSI-X irqs are not shared */ if ((mgp->dev->real_num_tx_queues == 1) && (ss != mgp->ss)) { napi_schedule(&ss->napi); - return (IRQ_HANDLED); + return IRQ_HANDLED; } /* make sure it is our IRQ, and that the DMA has finished */ if (unlikely(!stats->valid)) - return (IRQ_NONE); + return IRQ_NONE; /* low bit indicates receives are present, so schedule * napi poll handler */ @@ -1599,7 +1625,7 @@ static irqreturn_t myri10ge_intr(int irq, void *arg) myri10ge_check_statblock(mgp); put_be32(htonl(3), ss->irq_claim + 1); - return (IRQ_HANDLED); + return IRQ_HANDLED; } static int @@ -3753,8 +3779,8 @@ static void myri10ge_probe_slices(struct myri10ge_priv *mgp) * slices. We give up on MSI-X if we can only get a single * vector. */ - mgp->msix_vectors = kzalloc(mgp->num_slices * - sizeof(*mgp->msix_vectors), GFP_KERNEL); + mgp->msix_vectors = kcalloc(mgp->num_slices, sizeof(*mgp->msix_vectors), + GFP_KERNEL); if (mgp->msix_vectors == NULL) goto disable_msix; for (i = 0; i < mgp->num_slices; i++) { @@ -3923,7 +3949,8 @@ static int myri10ge_probe(struct pci_dev *pdev, const struct pci_device_id *ent) dev_err(&pdev->dev, "failed to alloc slice state\n"); goto abort_with_firmware; } - netdev->real_num_tx_queues = mgp->num_slices; + netif_set_real_num_tx_queues(netdev, mgp->num_slices); + netif_set_real_num_rx_queues(netdev, mgp->num_slices); status = myri10ge_reset(mgp); if (status != 0) { dev_err(&pdev->dev, "failed reset\n"); |