diff options
Diffstat (limited to 'drivers/net/sfc')
| -rw-r--r-- | drivers/net/sfc/efx.c | 28 | ||||
| -rw-r--r-- | drivers/net/sfc/ethtool.c | 15 | ||||
| -rw-r--r-- | drivers/net/sfc/net_driver.h | 43 | ||||
| -rw-r--r-- | drivers/net/sfc/nic.c | 85 | ||||
| -rw-r--r-- | drivers/net/sfc/rx.c | 2 | ||||
| -rw-r--r-- | drivers/net/sfc/selftest.c | 5 | ||||
| -rw-r--r-- | drivers/net/sfc/tx.c | 22 |
7 files changed, 125 insertions, 75 deletions
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c index a57604527a4..3dd71aa310c 100644 --- a/drivers/net/sfc/efx.c +++ b/drivers/net/sfc/efx.c @@ -248,7 +248,7 @@ static int efx_process_channel(struct efx_channel *channel, int budget) efx_rx_strategy(channel); - efx_fast_push_rx_descriptors(&efx->rx_queue[channel->channel]); + efx_fast_push_rx_descriptors(efx_channel_get_rx_queue(channel)); return spent; } @@ -1050,7 +1050,8 @@ static void efx_probe_interrupts(struct efx_nic *efx) efx->n_rx_channels = efx->n_channels; } for (i = 0; i < n_channels; i++) - efx->channel[i].irq = xentries[i].vector; + efx_get_channel(efx, i)->irq = + xentries[i].vector; } else { /* Fall back to single channel MSI */ efx->interrupt_mode = EFX_INT_MODE_MSI; @@ -1066,7 +1067,7 @@ static void efx_probe_interrupts(struct efx_nic *efx) efx->n_tx_channels = 1; rc = pci_enable_msi(efx->pci_dev); if (rc == 0) { - efx->channel[0].irq = efx->pci_dev->irq; + efx_get_channel(efx, 0)->irq = efx->pci_dev->irq; } else { netif_err(efx, drv, efx->net_dev, "could not enable MSI\n"); @@ -1355,20 +1356,20 @@ static unsigned irq_mod_ticks(int usecs, int resolution) void efx_init_irq_moderation(struct efx_nic *efx, int tx_usecs, int rx_usecs, bool rx_adaptive) { - struct efx_tx_queue *tx_queue; - struct efx_rx_queue *rx_queue; + struct efx_channel *channel; unsigned tx_ticks = irq_mod_ticks(tx_usecs, EFX_IRQ_MOD_RESOLUTION); unsigned rx_ticks = irq_mod_ticks(rx_usecs, EFX_IRQ_MOD_RESOLUTION); EFX_ASSERT_RESET_SERIALISED(efx); - efx_for_each_tx_queue(tx_queue, efx) - tx_queue->channel->irq_moderation = tx_ticks; - efx->irq_rx_adaptive = rx_adaptive; efx->irq_rx_moderation = rx_ticks; - efx_for_each_rx_queue(rx_queue, efx) - rx_queue->channel->irq_moderation = rx_ticks; + efx_for_each_channel(channel, efx) { + if (efx_channel_get_rx_queue(channel)) + channel->irq_moderation = rx_ticks; + else if (efx_channel_get_tx_queue(channel, 0)) + channel->irq_moderation = tx_ticks; + } } /************************************************************************** @@ -1767,6 +1768,7 @@ fail_registered: static void efx_unregister_netdev(struct efx_nic *efx) { + struct efx_channel *channel; struct efx_tx_queue *tx_queue; if (!efx->net_dev) @@ -1777,8 +1779,10 @@ static void efx_unregister_netdev(struct efx_nic *efx) /* Free up any skbs still remaining. This has to happen before * we try to unregister the netdev as running their destructors * may be needed to get the device ref. count to 0. */ - efx_for_each_tx_queue(tx_queue, efx) - efx_release_tx_buffers(tx_queue); + efx_for_each_channel(channel, efx) { + efx_for_each_channel_tx_queue(tx_queue, channel) + efx_release_tx_buffers(tx_queue); + } if (efx_dev_registered(efx)) { strlcpy(efx->name, pci_name(efx->pci_dev), sizeof(efx->name)); diff --git a/drivers/net/sfc/ethtool.c b/drivers/net/sfc/ethtool.c index fd19d6ab97a..b9291db023b 100644 --- a/drivers/net/sfc/ethtool.c +++ b/drivers/net/sfc/ethtool.c @@ -328,9 +328,10 @@ static int efx_fill_loopback_test(struct efx_nic *efx, unsigned int test_index, struct ethtool_string *strings, u64 *data) { + struct efx_channel *channel = efx_get_channel(efx, 0); struct efx_tx_queue *tx_queue; - efx_for_each_channel_tx_queue(tx_queue, &efx->channel[0]) { + efx_for_each_channel_tx_queue(tx_queue, channel) { efx_fill_test(test_index++, strings, data, &lb_tests->tx_sent[tx_queue->queue], EFX_TX_QUEUE_NAME(tx_queue), @@ -673,15 +674,15 @@ static int efx_ethtool_get_coalesce(struct net_device *net_dev, struct ethtool_coalesce *coalesce) { struct efx_nic *efx = netdev_priv(net_dev); - struct efx_tx_queue *tx_queue; struct efx_channel *channel; memset(coalesce, 0, sizeof(*coalesce)); /* Find lowest IRQ moderation across all used TX queues */ coalesce->tx_coalesce_usecs_irq = ~((u32) 0); - efx_for_each_tx_queue(tx_queue, efx) { - channel = tx_queue->channel; + efx_for_each_channel(channel, efx) { + if (!efx_channel_get_tx_queue(channel, 0)) + continue; if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) { if (channel->channel < efx->n_rx_channels) coalesce->tx_coalesce_usecs_irq = @@ -708,7 +709,6 @@ static int efx_ethtool_set_coalesce(struct net_device *net_dev, { struct efx_nic *efx = netdev_priv(net_dev); struct efx_channel *channel; - struct efx_tx_queue *tx_queue; unsigned tx_usecs, rx_usecs, adaptive; if (coalesce->use_adaptive_tx_coalesce) @@ -725,8 +725,9 @@ static int efx_ethtool_set_coalesce(struct net_device *net_dev, adaptive = coalesce->use_adaptive_rx_coalesce; /* If the channel is shared only allow RX parameters to be set */ - efx_for_each_tx_queue(tx_queue, efx) { - if ((tx_queue->channel->channel < efx->n_rx_channels) && + efx_for_each_channel(channel, efx) { + if (efx_channel_get_rx_queue(channel) && + efx_channel_get_tx_queue(channel, 0) && tx_usecs) { netif_err(efx, drv, efx->net_dev, "Channel is shared. " "Only RX coalescing may be set\n"); diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h index 89c6e02c57d..eb3537529c9 100644 --- a/drivers/net/sfc/net_driver.h +++ b/drivers/net/sfc/net_driver.h @@ -909,18 +909,34 @@ struct efx_nic_type { * *************************************************************************/ +static inline struct efx_channel * +efx_get_channel(struct efx_nic *efx, unsigned index) +{ + EFX_BUG_ON_PARANOID(index >= efx->n_channels); + return &efx->channel[index]; +} + /* Iterate over all used channels */ #define efx_for_each_channel(_channel, _efx) \ for (_channel = &((_efx)->channel[0]); \ _channel < &((_efx)->channel[(efx)->n_channels]); \ _channel++) -/* Iterate over all used TX queues */ -#define efx_for_each_tx_queue(_tx_queue, _efx) \ - for (_tx_queue = &((_efx)->tx_queue[0]); \ - _tx_queue < &((_efx)->tx_queue[EFX_TXQ_TYPES * \ - (_efx)->n_tx_channels]); \ - _tx_queue++) +static inline struct efx_tx_queue * +efx_get_tx_queue(struct efx_nic *efx, unsigned index, unsigned type) +{ + EFX_BUG_ON_PARANOID(index >= efx->n_tx_channels || + type >= EFX_TXQ_TYPES); + return &efx->tx_queue[index * EFX_TXQ_TYPES + type]; +} + +static inline struct efx_tx_queue * +efx_channel_get_tx_queue(struct efx_channel *channel, unsigned type) +{ + struct efx_tx_queue *tx_queue = channel->tx_queue; + EFX_BUG_ON_PARANOID(type >= EFX_TXQ_TYPES); + return tx_queue ? tx_queue + type : NULL; +} /* Iterate over all TX queues belonging to a channel */ #define efx_for_each_channel_tx_queue(_tx_queue, _channel) \ @@ -928,12 +944,27 @@ struct efx_nic_type { _tx_queue && _tx_queue < (_channel)->tx_queue + EFX_TXQ_TYPES; \ _tx_queue++) +static inline struct efx_rx_queue * +efx_get_rx_queue(struct efx_nic *efx, unsigned index) +{ + EFX_BUG_ON_PARANOID(index >= efx->n_rx_channels); + return &efx->rx_queue[index]; +} + /* Iterate over all used RX queues */ #define efx_for_each_rx_queue(_rx_queue, _efx) \ for (_rx_queue = &((_efx)->rx_queue[0]); \ _rx_queue < &((_efx)->rx_queue[(_efx)->n_rx_channels]); \ _rx_queue++) +static inline struct efx_rx_queue * +efx_channel_get_rx_queue(struct efx_channel *channel) +{ + struct efx_rx_queue *rx_queue = + &channel->efx->rx_queue[channel->channel]; + return rx_queue->channel == channel ? rx_queue : NULL; +} + /* Iterate over all RX queues belonging to a channel */ #define efx_for_each_channel_rx_queue(_rx_queue, _channel) \ for (_rx_queue = &((_channel)->efx->rx_queue[(_channel)->channel]); \ diff --git a/drivers/net/sfc/nic.c b/drivers/net/sfc/nic.c index be4d5524054..9e3563348eb 100644 --- a/drivers/net/sfc/nic.c +++ b/drivers/net/sfc/nic.c @@ -682,7 +682,8 @@ efx_handle_tx_event(struct efx_channel *channel, efx_qword_t *event) /* Transmit completion */ tx_ev_desc_ptr = EFX_QWORD_FIELD(*event, FSF_AZ_TX_EV_DESC_PTR); tx_ev_q_label = EFX_QWORD_FIELD(*event, FSF_AZ_TX_EV_Q_LABEL); - tx_queue = &efx->tx_queue[tx_ev_q_label]; + tx_queue = efx_channel_get_tx_queue( + channel, tx_ev_q_label % EFX_TXQ_TYPES); tx_packets = ((tx_ev_desc_ptr - tx_queue->read_count) & EFX_TXQ_MASK); channel->irq_mod_score += tx_packets; @@ -690,7 +691,8 @@ efx_handle_tx_event(struct efx_channel *channel, efx_qword_t *event) } else if (EFX_QWORD_FIELD(*event, FSF_AZ_TX_EV_WQ_FF_FULL)) { /* Rewrite the FIFO write pointer */ tx_ev_q_label = EFX_QWORD_FIELD(*event, FSF_AZ_TX_EV_Q_LABEL); - tx_queue = &efx->tx_queue[tx_ev_q_label]; + tx_queue = efx_channel_get_tx_queue( + channel, tx_ev_q_label % EFX_TXQ_TYPES); if (efx_dev_registered(efx)) netif_tx_lock(efx->net_dev); @@ -830,7 +832,7 @@ efx_handle_rx_event(struct efx_channel *channel, const efx_qword_t *event) WARN_ON(EFX_QWORD_FIELD(*event, FSF_AZ_RX_EV_Q_LABEL) != channel->channel); - rx_queue = &efx->rx_queue[channel->channel]; + rx_queue = efx_channel_get_rx_queue(channel); rx_ev_desc_ptr = EFX_QWORD_FIELD(*event, FSF_AZ_RX_EV_DESC_PTR); expected_ptr = rx_queue->removed_count & EFX_RXQ_MASK; @@ -882,7 +884,7 @@ efx_handle_generated_event(struct efx_channel *channel, efx_qword_t *event) /* The queue must be empty, so we won't receive any rx * events, so efx_process_channel() won't refill the * queue. Refill it here */ - efx_fast_push_rx_descriptors(&efx->rx_queue[channel->channel]); + efx_fast_push_rx_descriptors(efx_channel_get_rx_queue(channel)); else netif_dbg(efx, hw, efx->net_dev, "channel %d received " "generated event "EFX_QWORD_FMT"\n", @@ -1166,7 +1168,7 @@ void efx_nic_generate_fill_event(struct efx_channel *channel) static void efx_poll_flush_events(struct efx_nic *efx) { - struct efx_channel *channel = &efx->channel[0]; + struct efx_channel *channel = efx_get_channel(efx, 0); struct efx_tx_queue *tx_queue; struct efx_rx_queue *rx_queue; unsigned int read_ptr = channel->eventq_read_ptr; @@ -1188,7 +1190,9 @@ static void efx_poll_flush_events(struct efx_nic *efx) ev_queue = EFX_QWORD_FIELD(*event, FSF_AZ_DRIVER_EV_SUBDATA); if (ev_queue < EFX_TXQ_TYPES * efx->n_tx_channels) { - tx_queue = efx->tx_queue + ev_queue; + tx_queue = efx_get_tx_queue( + efx, ev_queue / EFX_TXQ_TYPES, + ev_queue % EFX_TXQ_TYPES); tx_queue->flushed = FLUSH_DONE; } } else if (ev_code == FSE_AZ_EV_CODE_DRIVER_EV && @@ -1198,7 +1202,7 @@ static void efx_poll_flush_events(struct efx_nic *efx) ev_failed = EFX_QWORD_FIELD( *event, FSF_AZ_DRIVER_EV_RX_FLUSH_FAIL); if (ev_queue < efx->n_rx_channels) { - rx_queue = efx->rx_queue + ev_queue; + rx_queue = efx_get_rx_queue(efx, ev_queue); rx_queue->flushed = ev_failed ? FLUSH_FAILED : FLUSH_DONE; } @@ -1219,6 +1223,7 @@ static void efx_poll_flush_events(struct efx_nic *efx) * serialise them */ int efx_nic_flush_queues(struct efx_nic *efx) { + struct efx_channel *channel; struct efx_rx_queue *rx_queue; struct efx_tx_queue *tx_queue; int i, tx_pending, rx_pending; @@ -1227,29 +1232,35 @@ int efx_nic_flush_queues(struct efx_nic *efx) efx->type->prepare_flush(efx); /* Flush all tx queues in parallel */ - efx_for_each_tx_queue(tx_queue, efx) - efx_flush_tx_queue(tx_queue); + efx_for_each_channel(channel, efx) { + efx_for_each_channel_tx_queue(tx_queue, channel) + efx_flush_tx_queue(tx_queue); + } /* The hardware supports four concurrent rx flushes, each of which may * need to be retried if there is an outstanding descriptor fetch */ for (i = 0; i < EFX_FLUSH_POLL_COUNT; ++i) { rx_pending = tx_pending = 0; - efx_for_each_rx_queue(rx_queue, efx) { - if (rx_queue->flushed == FLUSH_PENDING) - ++rx_pending; - } - efx_for_each_rx_queue(rx_queue, efx) { - if (rx_pending == EFX_RX_FLUSH_COUNT) - break; - if (rx_queue->flushed == FLUSH_FAILED || - rx_queue->flushed == FLUSH_NONE) { - efx_flush_rx_queue(rx_queue); - ++rx_pending; + efx_for_each_channel(channel, efx) { + efx_for_each_channel_rx_queue(rx_queue, channel) { + if (rx_queue->flushed == FLUSH_PENDING) + ++rx_pending; } } - efx_for_each_tx_queue(tx_queue, efx) { - if (tx_queue->flushed != FLUSH_DONE) - ++tx_pending; + efx_for_each_channel(channel, efx) { + efx_for_each_channel_rx_queue(rx_queue, channel) { + if (rx_pending == EFX_RX_FLUSH_COUNT) + break; + if (rx_queue->flushed == FLUSH_FAILED || + rx_queue->flushed == FLUSH_NONE) { + efx_flush_rx_queue(rx_queue); + ++rx_pending; + } + } + efx_for_each_channel_tx_queue(tx_queue, channel) { + if (tx_queue->flushed != FLUSH_DONE) + ++tx_pending; + } } if (rx_pending == 0 && tx_pending == 0) @@ -1261,19 +1272,21 @@ int efx_nic_flush_queues(struct efx_nic *efx) /* Mark the queues as all flushed. We're going to return failure * leading to a reset, or fake up success anyway */ - efx_for_each_tx_queue(tx_queue, efx) { - if (tx_queue->flushed != FLUSH_DONE) - netif_err(efx, hw, efx->net_dev, - "tx queue %d flush command timed out\n", - tx_queue->queue); - tx_queue->flushed = FLUSH_DONE; - } - efx_for_each_rx_queue(rx_queue, efx) { - if (rx_queue->flushed != FLUSH_DONE) - netif_err(efx, hw, efx->net_dev, - "rx queue %d flush command timed out\n", - efx_rx_queue_index(rx_queue)); - rx_queue->flushed = FLUSH_DONE; + efx_for_each_channel(channel, efx) { + efx_for_each_channel_tx_queue(tx_queue, channel) { + if (tx_queue->flushed != FLUSH_DONE) + netif_err(efx, hw, efx->net_dev, + "tx queue %d flush command timed out\n", + tx_queue->queue); + tx_queue->flushed = FLUSH_DONE; + } + efx_for_each_channel_rx_queue(rx_queue, channel) { + if (rx_queue->flushed != FLUSH_DONE) + netif_err(efx, hw, efx->net_dev, + "rx queue %d flush command timed out\n", + efx_rx_queue_index(rx_queue)); + rx_queue->flushed = FLUSH_DONE; + } } return -ETIMEDOUT; diff --git a/drivers/net/sfc/rx.c b/drivers/net/sfc/rx.c index 1e6c8cfa6c0..6651d9364e8 100644 --- a/drivers/net/sfc/rx.c +++ b/drivers/net/sfc/rx.c @@ -311,7 +311,7 @@ static void efx_recycle_rx_buffer(struct efx_channel *channel, struct efx_rx_buffer *rx_buf) { struct efx_nic *efx = channel->efx; - struct efx_rx_queue *rx_queue = &efx->rx_queue[channel->channel]; + struct efx_rx_queue *rx_queue = efx_channel_get_rx_queue(channel); struct efx_rx_buffer *new_buf; unsigned index; diff --git a/drivers/net/sfc/selftest.c b/drivers/net/sfc/selftest.c index 85f015f005d..11153d99bc2 100644 --- a/drivers/net/sfc/selftest.c +++ b/drivers/net/sfc/selftest.c @@ -567,7 +567,7 @@ static int efx_wait_for_link(struct efx_nic *efx) efx->type->monitor(efx); mutex_unlock(&efx->mac_lock); } else { - struct efx_channel *channel = &efx->channel[0]; + struct efx_channel *channel = efx_get_channel(efx, 0); if (channel->work_pending) efx_process_channel_now(channel); } @@ -594,6 +594,7 @@ static int efx_test_loopbacks(struct efx_nic *efx, struct efx_self_tests *tests, { enum efx_loopback_mode mode; struct efx_loopback_state *state; + struct efx_channel *channel = efx_get_channel(efx, 0); struct efx_tx_queue *tx_queue; int rc = 0; @@ -634,7 +635,7 @@ static int efx_test_loopbacks(struct efx_nic *efx, struct efx_self_tests *tests, } /* Test both types of TX queue */ - efx_for_each_channel_tx_queue(tx_queue, &efx->channel[0]) { + efx_for_each_channel_tx_queue(tx_queue, channel) { state->offload_csum = (tx_queue->queue & EFX_TXQ_TYPE_OFFLOAD); rc = efx_test_loopback(tx_queue, diff --git a/drivers/net/sfc/tx.c b/drivers/net/sfc/tx.c index c6942da2c99..6a6acc47285 100644 --- a/drivers/net/sfc/tx.c +++ b/drivers/net/sfc/tx.c @@ -37,8 +37,9 @@ void efx_stop_queue(struct efx_channel *channel) { struct efx_nic *efx = channel->efx; + struct efx_tx_queue *tx_queue = efx_channel_get_tx_queue(channel, 0); - if (!channel->tx_queue) + if (!tx_queue) return; spin_lock_bh(&channel->tx_stop_lock); @@ -46,9 +47,8 @@ void efx_stop_queue(struct efx_channel *channel) atomic_inc(&channel->tx_stop_count); netif_tx_stop_queue( - netdev_get_tx_queue( - efx->net_dev, - channel->tx_queue->queue / EFX_TXQ_TYPES)); + netdev_get_tx_queue(efx->net_dev, + tx_queue->queue / EFX_TXQ_TYPES)); spin_unlock_bh(&channel->tx_stop_lock); } @@ -57,8 +57,9 @@ void efx_stop_queue(struct efx_channel *channel) void efx_wake_queue(struct efx_channel *channel) { struct efx_nic *efx = channel->efx; + struct efx_tx_queue *tx_queue = efx_channel_get_tx_queue(channel, 0); - if (!channel->tx_queue) + if (!tx_queue) return; local_bh_disable(); @@ -66,9 +67,8 @@ void efx_wake_queue(struct efx_channel *channel) &channel->tx_stop_lock)) { netif_vdbg(efx, tx_queued, efx->net_dev, "waking TX queue\n"); netif_tx_wake_queue( - netdev_get_tx_queue( - efx->net_dev, - channel->tx_queue->queue / EFX_TXQ_TYPES)); + netdev_get_tx_queue(efx->net_dev, + tx_queue->queue / EFX_TXQ_TYPES)); spin_unlock(&channel->tx_stop_lock); } local_bh_enable(); @@ -390,9 +390,9 @@ netdev_tx_t efx_hard_start_xmit(struct sk_buff *skb, if (unlikely(efx->port_inhibited)) return NETDEV_TX_BUSY; - tx_queue = &efx->tx_queue[EFX_TXQ_TYPES * skb_get_queue_mapping(skb)]; - if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) - tx_queue += EFX_TXQ_TYPE_OFFLOAD; + tx_queue = efx_get_tx_queue(efx, skb_get_queue_mapping(skb), + skb->ip_summed == CHECKSUM_PARTIAL ? + EFX_TXQ_TYPE_OFFLOAD : 0); return efx_enqueue_skb(tx_queue, skb); } |