diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/tg3.c | 31 |
1 files changed, 25 insertions, 6 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 26e9db8c1b95..5782511c9459 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -4804,7 +4804,8 @@ static irqreturn_t tg3_msi_1shot(int irq, void *dev_id) struct tg3 *tp = tnapi->tp; prefetch(tnapi->hw_status); - prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]); + if (tnapi->rx_rcb) + prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]); if (likely(!tg3_irq_sync(tp))) napi_schedule(&tnapi->napi); @@ -4822,7 +4823,8 @@ static irqreturn_t tg3_msi(int irq, void *dev_id) struct tg3 *tp = tnapi->tp; prefetch(tnapi->hw_status); - prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]); + if (tnapi->rx_rcb) + prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]); /* * Writing any value to intr-mbox-0 clears PCI INTA# and * chip-internal interrupt pending events. @@ -5765,6 +5767,9 @@ static void tg3_free_rings(struct tg3 *tp) for (j = 0; j < tp->irq_cnt; j++) { struct tg3_napi *tnapi = &tp->napi[j]; + if (!tnapi->tx_buffers) + continue; + for (i = 0; i < TG3_TX_RING_SIZE; ) { struct tx_ring_info *txp; struct sk_buff *skb; @@ -5815,10 +5820,12 @@ static int tg3_init_rings(struct tg3 *tp) tnapi->tx_prod = 0; tnapi->tx_cons = 0; - memset(tnapi->tx_ring, 0, TG3_TX_RING_BYTES); + if (tnapi->tx_ring) + memset(tnapi->tx_ring, 0, TG3_TX_RING_BYTES); tnapi->rx_rcb_ptr = 0; - memset(tnapi->rx_rcb, 0, TG3_RX_RCB_RING_BYTES(tp)); + if (tnapi->rx_rcb) + memset(tnapi->rx_rcb, 0, TG3_RX_RCB_RING_BYTES(tp)); } return tg3_rx_prodring_alloc(tp, &tp->prodring[0]); @@ -5898,6 +5905,13 @@ static int tg3_alloc_consistent(struct tg3 *tp) memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE); + /* + * If multivector RSS is enabled, vector 0 does not handle + * rx or tx interrupts. Don't allocate any resources for it. + */ + if (!i && (tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS)) + continue; + tnapi->rx_rcb = pci_alloc_consistent(tp->pdev, TG3_RX_RCB_RING_BYTES(tp), &tnapi->rx_rcb_mapping); @@ -10166,8 +10180,13 @@ static int tg3_run_loopback(struct tg3 *tp, int loopback_mode) struct tg3_napi *tnapi, *rnapi; struct tg3_rx_prodring_set *tpr = &tp->prodring[0]; - tnapi = &tp->napi[0]; - rnapi = &tp->napi[0]; + if (tp->irq_cnt > 1) { + tnapi = &tp->napi[1]; + rnapi = &tp->napi[1]; + } else { + tnapi = &tp->napi[0]; + rnapi = &tp->napi[0]; + } coal_now = tnapi->coal_now | rnapi->coal_now; if (loopback_mode == TG3_MAC_LOOPBACK) { |