diff options
Diffstat (limited to 'drivers/net/sfc/rx.c')
| -rw-r--r-- | drivers/net/sfc/rx.c | 31 |
1 files changed, 18 insertions, 13 deletions
diff --git a/drivers/net/sfc/rx.c b/drivers/net/sfc/rx.c index 98bff5ada09a..a60c7188fdad 100644 --- a/drivers/net/sfc/rx.c +++ b/drivers/net/sfc/rx.c @@ -61,7 +61,7 @@ * rx_alloc_method = (rx_alloc_level > RX_ALLOC_LEVEL_LRO ? * RX_ALLOC_METHOD_PAGE : RX_ALLOC_METHOD_SKB) */ -static int rx_alloc_method = RX_ALLOC_METHOD_PAGE; +static int rx_alloc_method = RX_ALLOC_METHOD_AUTO; #define RX_ALLOC_LEVEL_LRO 0x2000 #define RX_ALLOC_LEVEL_MAX 0x3000 @@ -293,8 +293,7 @@ static int __efx_fast_push_rx_descriptors(struct efx_rx_queue *rx_queue, * fill anyway. */ fill_level = (rx_queue->added_count - rx_queue->removed_count); - EFX_BUG_ON_PARANOID(fill_level > - rx_queue->efx->type->rxd_ring_mask + 1); + EFX_BUG_ON_PARANOID(fill_level > EFX_RXQ_SIZE); /* Don't fill if we don't need to */ if (fill_level >= rx_queue->fast_fill_trigger) @@ -316,8 +315,7 @@ static int __efx_fast_push_rx_descriptors(struct efx_rx_queue *rx_queue, retry: /* Recalculate current fill level now that we have the lock */ fill_level = (rx_queue->added_count - rx_queue->removed_count); - EFX_BUG_ON_PARANOID(fill_level > - rx_queue->efx->type->rxd_ring_mask + 1); + EFX_BUG_ON_PARANOID(fill_level > EFX_RXQ_SIZE); space = rx_queue->fast_fill_limit - fill_level; if (space < EFX_RX_BATCH) goto out_unlock; @@ -329,8 +327,7 @@ static int __efx_fast_push_rx_descriptors(struct efx_rx_queue *rx_queue, do { for (i = 0; i < EFX_RX_BATCH; ++i) { - index = (rx_queue->added_count & - rx_queue->efx->type->rxd_ring_mask); + index = rx_queue->added_count & EFX_RXQ_MASK; rx_buf = efx_rx_buffer(rx_queue, index); rc = efx_init_rx_buffer(rx_queue, rx_buf); if (unlikely(rc)) @@ -448,6 +445,7 @@ static void efx_rx_packet_lro(struct efx_channel *channel, bool checksummed) { struct napi_struct *napi = &channel->napi_str; + gro_result_t gro_result; /* Pass the skb/page into the LRO engine */ if (rx_buf->page) { @@ -455,6 +453,7 @@ static void efx_rx_packet_lro(struct efx_channel *channel, if (!skb) { put_page(rx_buf->page); + gro_result = GRO_DROP; goto out; } @@ -470,7 +469,7 @@ static void efx_rx_packet_lro(struct efx_channel *channel, skb->ip_summed = checksummed ? CHECKSUM_UNNECESSARY : CHECKSUM_NONE; - napi_gro_frags(napi); + gro_result = napi_gro_frags(napi); out: EFX_BUG_ON_PARANOID(rx_buf->skb); @@ -479,9 +478,16 @@ out: EFX_BUG_ON_PARANOID(!rx_buf->skb); EFX_BUG_ON_PARANOID(!checksummed); - napi_gro_receive(napi, rx_buf->skb); + gro_result = napi_gro_receive(napi, rx_buf->skb); rx_buf->skb = NULL; } + + if (gro_result == GRO_NORMAL) { + channel->rx_alloc_level += RX_ALLOC_FACTOR_SKB; + } else if (gro_result != GRO_DROP) { + channel->rx_alloc_level += RX_ALLOC_FACTOR_LRO; + channel->irq_mod_score += 2; + } } void efx_rx_packet(struct efx_rx_queue *rx_queue, unsigned int index, @@ -632,7 +638,7 @@ int efx_probe_rx_queue(struct efx_rx_queue *rx_queue) EFX_LOG(efx, "creating RX queue %d\n", rx_queue->queue); /* Allocate RX buffers */ - rxq_size = (efx->type->rxd_ring_mask + 1) * sizeof(*rx_queue->buffer); + rxq_size = EFX_RXQ_SIZE * sizeof(*rx_queue->buffer); rx_queue->buffer = kzalloc(rxq_size, GFP_KERNEL); if (!rx_queue->buffer) return -ENOMEM; @@ -647,7 +653,6 @@ int efx_probe_rx_queue(struct efx_rx_queue *rx_queue) void efx_init_rx_queue(struct efx_rx_queue *rx_queue) { - struct efx_nic *efx = rx_queue->efx; unsigned int max_fill, trigger, limit; EFX_LOG(rx_queue->efx, "initialising RX queue %d\n", rx_queue->queue); @@ -660,7 +665,7 @@ void efx_init_rx_queue(struct efx_rx_queue *rx_queue) rx_queue->min_overfill = -1U; /* Initialise limit fields */ - max_fill = efx->type->rxd_ring_mask + 1 - EFX_RXD_HEAD_ROOM; + max_fill = EFX_RXQ_SIZE - EFX_RXD_HEAD_ROOM; trigger = max_fill * min(rx_refill_threshold, 100U) / 100U; limit = max_fill * min(rx_refill_limit, 100U) / 100U; @@ -683,7 +688,7 @@ void efx_fini_rx_queue(struct efx_rx_queue *rx_queue) /* Release RX buffers NB start at index 0 not current HW ptr */ if (rx_queue->buffer) { - for (i = 0; i <= rx_queue->efx->type->rxd_ring_mask; i++) { + for (i = 0; i <= EFX_RXQ_MASK; i++) { rx_buf = efx_rx_buffer(rx_queue, i); efx_fini_rx_buffer(rx_queue, rx_buf); } |