From 3ffeabdd2bc62e0ebcb1a51a5d959a86a7a915fc Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Fri, 23 Oct 2009 08:30:58 +0000 Subject: sfc: Eliminate indirect lookups of queue size constants Move size and mask definitions into efx.h; calculate page orders in falcon.c. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- drivers/net/sfc/efx.c | 14 ++------- drivers/net/sfc/efx.h | 6 ++++ drivers/net/sfc/falcon.c | 70 ++++++++++++++++---------------------------- drivers/net/sfc/net_driver.h | 6 ---- drivers/net/sfc/rx.c | 16 ++++------ drivers/net/sfc/selftest.c | 2 +- drivers/net/sfc/tx.c | 46 +++++++++++++---------------- 7 files changed, 62 insertions(+), 98 deletions(-) diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c index cc4b2f99989..8b67553046e 100644 --- a/drivers/net/sfc/efx.c +++ b/drivers/net/sfc/efx.c @@ -290,7 +290,7 @@ void efx_process_channel_now(struct efx_channel *channel) napi_disable(&channel->napi_str); /* Poll the channel */ - efx_process_channel(channel, efx->type->evq_size); + efx_process_channel(channel, EFX_EVQ_SIZE); /* Ack the eventq. This may cause an interrupt to be generated * when they are reenabled */ @@ -1981,17 +1981,9 @@ static int efx_init_struct(struct efx_nic *efx, struct efx_nic_type *type, efx->type = type; - /* Sanity-check NIC type */ - EFX_BUG_ON_PARANOID(efx->type->txd_ring_mask & - (efx->type->txd_ring_mask + 1)); - EFX_BUG_ON_PARANOID(efx->type->rxd_ring_mask & - (efx->type->rxd_ring_mask + 1)); - EFX_BUG_ON_PARANOID(efx->type->evq_size & - (efx->type->evq_size - 1)); /* As close as we can get to guaranteeing that we don't overflow */ - EFX_BUG_ON_PARANOID(efx->type->evq_size < - (efx->type->txd_ring_mask + 1 + - efx->type->rxd_ring_mask + 1)); + BUILD_BUG_ON(EFX_EVQ_SIZE < EFX_TXQ_SIZE + EFX_RXQ_SIZE); + EFX_BUG_ON_PARANOID(efx->type->phys_addr_channels > EFX_MAX_CHANNELS); /* Higher numbered interrupt modes are less capable! */ diff --git a/drivers/net/sfc/efx.h b/drivers/net/sfc/efx.h index aecaf62f492..20c8d62fd6e 100644 --- a/drivers/net/sfc/efx.h +++ b/drivers/net/sfc/efx.h @@ -25,16 +25,22 @@ extern netdev_tx_t efx_xmit(struct efx_nic *efx, struct sk_buff *skb); extern void efx_stop_queue(struct efx_nic *efx); extern void efx_wake_queue(struct efx_nic *efx); +#define EFX_TXQ_SIZE 1024 +#define EFX_TXQ_MASK (EFX_TXQ_SIZE - 1) /* RX */ extern void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index); extern void efx_rx_packet(struct efx_rx_queue *rx_queue, unsigned int index, unsigned int len, bool checksummed, bool discard); extern void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue, int delay); +#define EFX_RXQ_SIZE 1024 +#define EFX_RXQ_MASK (EFX_RXQ_SIZE - 1) /* Channels */ extern void efx_process_channel_now(struct efx_channel *channel); extern void efx_flush_queues(struct efx_nic *efx); +#define EFX_EVQ_SIZE 4096 +#define EFX_EVQ_MASK (EFX_EVQ_SIZE - 1) /* Ports */ extern void efx_stats_disable(struct efx_nic *efx); diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c index 759f55ae4b8..3cb7e613ab3 100644 --- a/drivers/net/sfc/falcon.c +++ b/drivers/net/sfc/falcon.c @@ -108,21 +108,6 @@ static int rx_xon_thresh_bytes = -1; module_param(rx_xon_thresh_bytes, int, 0644); MODULE_PARM_DESC(rx_xon_thresh_bytes, "RX fifo XON threshold"); -/* TX descriptor ring size - min 512 max 4k */ -#define FALCON_TXD_RING_ORDER FFE_AZ_TX_DESCQ_SIZE_1K -#define FALCON_TXD_RING_SIZE 1024 -#define FALCON_TXD_RING_MASK (FALCON_TXD_RING_SIZE - 1) - -/* RX descriptor ring size - min 512 max 4k */ -#define FALCON_RXD_RING_ORDER FFE_AZ_RX_DESCQ_SIZE_1K -#define FALCON_RXD_RING_SIZE 1024 -#define FALCON_RXD_RING_MASK (FALCON_RXD_RING_SIZE - 1) - -/* Event queue size - max 32k */ -#define FALCON_EVQ_ORDER FFE_AZ_EVQ_SIZE_4K -#define FALCON_EVQ_SIZE 4096 -#define FALCON_EVQ_MASK (FALCON_EVQ_SIZE - 1) - /* If FALCON_MAX_INT_ERRORS internal errors occur within * FALCON_INT_ERROR_EXPIRE seconds, we consider the NIC broken and * disable it. @@ -420,7 +405,7 @@ static inline void falcon_notify_tx_desc(struct efx_tx_queue *tx_queue) unsigned write_ptr; efx_dword_t reg; - write_ptr = tx_queue->write_count & FALCON_TXD_RING_MASK; + write_ptr = tx_queue->write_count & EFX_TXQ_MASK; EFX_POPULATE_DWORD_1(reg, FRF_AZ_TX_DESC_WPTR_DWORD, write_ptr); efx_writed_page(tx_queue->efx, ®, FR_AZ_TX_DESC_UPD_DWORD_P0, tx_queue->queue); @@ -441,7 +426,7 @@ void falcon_push_buffers(struct efx_tx_queue *tx_queue) BUG_ON(tx_queue->write_count == tx_queue->insert_count); do { - write_ptr = tx_queue->write_count & FALCON_TXD_RING_MASK; + write_ptr = tx_queue->write_count & EFX_TXQ_MASK; buffer = &tx_queue->buffer[write_ptr]; txd = falcon_tx_desc(tx_queue, write_ptr); ++tx_queue->write_count; @@ -462,9 +447,10 @@ void falcon_push_buffers(struct efx_tx_queue *tx_queue) int falcon_probe_tx(struct efx_tx_queue *tx_queue) { struct efx_nic *efx = tx_queue->efx; + BUILD_BUG_ON(EFX_TXQ_SIZE < 512 || EFX_TXQ_SIZE > 4096 || + EFX_TXQ_SIZE & EFX_TXQ_MASK); return falcon_alloc_special_buffer(efx, &tx_queue->txd, - FALCON_TXD_RING_SIZE * - sizeof(efx_qword_t)); + EFX_TXQ_SIZE * sizeof(efx_qword_t)); } void falcon_init_tx(struct efx_tx_queue *tx_queue) @@ -487,7 +473,8 @@ void falcon_init_tx(struct efx_tx_queue *tx_queue) tx_queue->channel->channel, FRF_AZ_TX_DESCQ_OWNER_ID, 0, FRF_AZ_TX_DESCQ_LABEL, tx_queue->queue, - FRF_AZ_TX_DESCQ_SIZE, FALCON_TXD_RING_ORDER, + FRF_AZ_TX_DESCQ_SIZE, + __ffs(tx_queue->txd.entries), FRF_AZ_TX_DESCQ_TYPE, 0, FRF_BZ_TX_NON_IP_DROP_DIS, 1); @@ -592,12 +579,12 @@ void falcon_notify_rx_desc(struct efx_rx_queue *rx_queue) while (rx_queue->notified_count != rx_queue->added_count) { falcon_build_rx_desc(rx_queue, rx_queue->notified_count & - FALCON_RXD_RING_MASK); + EFX_RXQ_MASK); ++rx_queue->notified_count; } wmb(); - write_ptr = rx_queue->added_count & FALCON_RXD_RING_MASK; + write_ptr = rx_queue->added_count & EFX_RXQ_MASK; EFX_POPULATE_DWORD_1(reg, FRF_AZ_RX_DESC_WPTR_DWORD, write_ptr); efx_writed_page(rx_queue->efx, ®, FR_AZ_RX_DESC_UPD_DWORD_P0, rx_queue->queue); @@ -606,9 +593,10 @@ void falcon_notify_rx_desc(struct efx_rx_queue *rx_queue) int falcon_probe_rx(struct efx_rx_queue *rx_queue) { struct efx_nic *efx = rx_queue->efx; + BUILD_BUG_ON(EFX_RXQ_SIZE < 512 || EFX_RXQ_SIZE > 4096 || + EFX_RXQ_SIZE & EFX_RXQ_MASK); return falcon_alloc_special_buffer(efx, &rx_queue->rxd, - FALCON_RXD_RING_SIZE * - sizeof(efx_qword_t)); + EFX_RXQ_SIZE * sizeof(efx_qword_t)); } void falcon_init_rx(struct efx_rx_queue *rx_queue) @@ -636,7 +624,8 @@ void falcon_init_rx(struct efx_rx_queue *rx_queue) rx_queue->channel->channel, FRF_AZ_RX_DESCQ_OWNER_ID, 0, FRF_AZ_RX_DESCQ_LABEL, rx_queue->queue, - FRF_AZ_RX_DESCQ_SIZE, FALCON_RXD_RING_ORDER, + FRF_AZ_RX_DESCQ_SIZE, + __ffs(rx_queue->rxd.entries), FRF_AZ_RX_DESCQ_TYPE, 0 /* kernel queue */ , /* For >=B0 this is scatter so disable */ FRF_AZ_RX_DESCQ_JUMBO, !is_b0, @@ -741,7 +730,7 @@ static void falcon_handle_tx_event(struct efx_channel *channel, tx_queue = &efx->tx_queue[tx_ev_q_label]; channel->irq_mod_score += (tx_ev_desc_ptr - tx_queue->read_count) & - efx->type->txd_ring_mask; + EFX_TXQ_MASK; efx_xmit_done(tx_queue, tx_ev_desc_ptr); } else if (EFX_QWORD_FIELD(*event, FSF_AZ_TX_EV_WQ_FF_FULL)) { /* Rewrite the FIFO write pointer */ @@ -848,9 +837,8 @@ static void falcon_handle_rx_bad_index(struct efx_rx_queue *rx_queue, struct efx_nic *efx = rx_queue->efx; unsigned expected, dropped; - expected = rx_queue->removed_count & FALCON_RXD_RING_MASK; - dropped = ((index + FALCON_RXD_RING_SIZE - expected) & - FALCON_RXD_RING_MASK); + expected = rx_queue->removed_count & EFX_RXQ_MASK; + dropped = (index - expected) & EFX_RXQ_MASK; EFX_INFO(efx, "dropped %d events (index=%d expected=%d)\n", dropped, index, expected); @@ -887,7 +875,7 @@ static void falcon_handle_rx_event(struct efx_channel *channel, rx_queue = &efx->rx_queue[channel->channel]; rx_ev_desc_ptr = EFX_QWORD_FIELD(*event, FSF_AZ_RX_EV_DESC_PTR); - expected_ptr = rx_queue->removed_count & FALCON_RXD_RING_MASK; + expected_ptr = rx_queue->removed_count & EFX_RXQ_MASK; if (unlikely(rx_ev_desc_ptr != expected_ptr)) falcon_handle_rx_bad_index(rx_queue, rx_ev_desc_ptr); @@ -1075,7 +1063,7 @@ int falcon_process_eventq(struct efx_channel *channel, int rx_quota) } /* Increment read pointer */ - read_ptr = (read_ptr + 1) & FALCON_EVQ_MASK; + read_ptr = (read_ptr + 1) & EFX_EVQ_MASK; } while (rx_packets < rx_quota); @@ -1120,10 +1108,10 @@ void falcon_set_int_moderation(struct efx_channel *channel) int falcon_probe_eventq(struct efx_channel *channel) { struct efx_nic *efx = channel->efx; - unsigned int evq_size; - - evq_size = FALCON_EVQ_SIZE * sizeof(efx_qword_t); - return falcon_alloc_special_buffer(efx, &channel->eventq, evq_size); + BUILD_BUG_ON(EFX_EVQ_SIZE < 512 || EFX_EVQ_SIZE > 32768 || + EFX_EVQ_SIZE & EFX_EVQ_MASK); + return falcon_alloc_special_buffer(efx, &channel->eventq, + EFX_EVQ_SIZE * sizeof(efx_qword_t)); } void falcon_init_eventq(struct efx_channel *channel) @@ -1144,7 +1132,7 @@ void falcon_init_eventq(struct efx_channel *channel) /* Push event queue to card */ EFX_POPULATE_OWORD_3(evq_ptr, FRF_AZ_EVQ_EN, 1, - FRF_AZ_EVQ_SIZE, FALCON_EVQ_ORDER, + FRF_AZ_EVQ_SIZE, __ffs(channel->eventq.entries), FRF_AZ_EVQ_BUF_BASE_ID, channel->eventq.index); efx_writeo_table(efx, &evq_ptr, efx->type->evq_ptr_tbl_base, channel->channel); @@ -1214,7 +1202,7 @@ static void falcon_poll_flush_events(struct efx_nic *efx) struct efx_tx_queue *tx_queue; struct efx_rx_queue *rx_queue; unsigned int read_ptr = channel->eventq_read_ptr; - unsigned int end_ptr = (read_ptr - 1) & FALCON_EVQ_MASK; + unsigned int end_ptr = (read_ptr - 1) & EFX_EVQ_MASK; do { efx_qword_t *event = falcon_event(channel, read_ptr); @@ -1252,7 +1240,7 @@ static void falcon_poll_flush_events(struct efx_nic *efx) } } - read_ptr = (read_ptr + 1) & FALCON_EVQ_MASK; + read_ptr = (read_ptr + 1) & EFX_EVQ_MASK; } while (read_ptr != end_ptr); } @@ -3160,9 +3148,6 @@ struct efx_nic_type falcon_a_nic_type = { .buf_tbl_base = FR_AA_BUF_FULL_TBL_KER, .evq_ptr_tbl_base = FR_AA_EVQ_PTR_TBL_KER, .evq_rptr_tbl_base = FR_AA_EVQ_RPTR_KER, - .txd_ring_mask = FALCON_TXD_RING_MASK, - .rxd_ring_mask = FALCON_RXD_RING_MASK, - .evq_size = FALCON_EVQ_SIZE, .max_dma_mask = FALCON_DMA_MASK, .tx_dma_mask = FALCON_TX_DMA_MASK, .bug5391_mask = 0xf, @@ -3184,9 +3169,6 @@ struct efx_nic_type falcon_b_nic_type = { .buf_tbl_base = FR_BZ_BUF_FULL_TBL, .evq_ptr_tbl_base = FR_BZ_EVQ_PTR_TBL, .evq_rptr_tbl_base = FR_BZ_EVQ_RPTR, - .txd_ring_mask = FALCON_TXD_RING_MASK, - .rxd_ring_mask = FALCON_RXD_RING_MASK, - .evq_size = FALCON_EVQ_SIZE, .max_dma_mask = FALCON_DMA_MASK, .tx_dma_mask = FALCON_TX_DMA_MASK, .bug5391_mask = 0, diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h index 479a6fe3831..3afadc621a8 100644 --- a/drivers/net/sfc/net_driver.h +++ b/drivers/net/sfc/net_driver.h @@ -869,9 +869,6 @@ static inline const char *efx_dev_name(struct efx_nic *efx) * @buf_tbl_base: Buffer table base address * @evq_ptr_tbl_base: Event queue pointer table base address * @evq_rptr_tbl_base: Event queue read-pointer table base address - * @txd_ring_mask: TX descriptor ring size - 1 (must be a power of two - 1) - * @rxd_ring_mask: RX descriptor ring size - 1 (must be a power of two - 1) - * @evq_size: Event queue size (must be a power of two) * @max_dma_mask: Maximum possible DMA mask * @tx_dma_mask: TX DMA mask * @bug5391_mask: Address mask for bug 5391 workaround @@ -890,9 +887,6 @@ struct efx_nic_type { unsigned int evq_ptr_tbl_base; unsigned int evq_rptr_tbl_base; - unsigned int txd_ring_mask; - unsigned int rxd_ring_mask; - unsigned int evq_size; u64 max_dma_mask; unsigned int tx_dma_mask; unsigned bug5391_mask; diff --git a/drivers/net/sfc/rx.c b/drivers/net/sfc/rx.c index 01f9432c31e..ea59ed25b0d 100644 --- a/drivers/net/sfc/rx.c +++ b/drivers/net/sfc/rx.c @@ -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)) @@ -629,7 +626,7 @@ 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; @@ -644,7 +641,6 @@ 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); @@ -657,7 +653,7 @@ 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; @@ -680,7 +676,7 @@ 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); } diff --git a/drivers/net/sfc/selftest.c b/drivers/net/sfc/selftest.c index e5c4c9cd452..7a9386f97c4 100644 --- a/drivers/net/sfc/selftest.c +++ b/drivers/net/sfc/selftest.c @@ -526,7 +526,7 @@ efx_test_loopback(struct efx_tx_queue *tx_queue, for (i = 0; i < 3; i++) { /* Determine how many packets to send */ - state->packet_count = (efx->type->txd_ring_mask + 1) / 3; + state->packet_count = EFX_TXQ_SIZE / 3; state->packet_count = min(1 << (i << 2), state->packet_count); state->skbs = kzalloc(sizeof(state->skbs[0]) * state->packet_count, GFP_KERNEL); diff --git a/drivers/net/sfc/tx.c b/drivers/net/sfc/tx.c index 489c4de3144..ae554eec056 100644 --- a/drivers/net/sfc/tx.c +++ b/drivers/net/sfc/tx.c @@ -26,8 +26,7 @@ * The tx_queue descriptor ring fill-level must fall below this value * before we restart the netif queue */ -#define EFX_NETDEV_TX_THRESHOLD(_tx_queue) \ - (_tx_queue->efx->type->txd_ring_mask / 2u) +#define EFX_TXQ_THRESHOLD (EFX_TXQ_MASK / 2u) /* We want to be able to nest calls to netif_stop_queue(), since each * channel can have an individual stop on the queue. @@ -171,7 +170,7 @@ static netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, } fill_level = tx_queue->insert_count - tx_queue->old_read_count; - q_space = efx->type->txd_ring_mask - 1 - fill_level; + q_space = EFX_TXQ_MASK - 1 - fill_level; /* Map for DMA. Use pci_map_single rather than pci_map_page * since this is more efficient on machines with sparse @@ -208,16 +207,14 @@ static netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, &tx_queue->read_count; fill_level = (tx_queue->insert_count - tx_queue->old_read_count); - q_space = (efx->type->txd_ring_mask - 1 - - fill_level); + q_space = EFX_TXQ_MASK - 1 - fill_level; if (unlikely(q_space-- <= 0)) goto stop; smp_mb(); --tx_queue->stopped; } - insert_ptr = (tx_queue->insert_count & - efx->type->txd_ring_mask); + insert_ptr = tx_queue->insert_count & EFX_TXQ_MASK; buffer = &tx_queue->buffer[insert_ptr]; efx_tsoh_free(tx_queue, buffer); EFX_BUG_ON_PARANOID(buffer->tsoh); @@ -289,7 +286,7 @@ static netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, /* Work backwards until we hit the original insert pointer value */ while (tx_queue->insert_count != tx_queue->write_count) { --tx_queue->insert_count; - insert_ptr = tx_queue->insert_count & efx->type->txd_ring_mask; + insert_ptr = tx_queue->insert_count & EFX_TXQ_MASK; buffer = &tx_queue->buffer[insert_ptr]; efx_dequeue_buffer(tx_queue, buffer); buffer->len = 0; @@ -318,10 +315,9 @@ static void efx_dequeue_buffers(struct efx_tx_queue *tx_queue, { struct efx_nic *efx = tx_queue->efx; unsigned int stop_index, read_ptr; - unsigned int mask = tx_queue->efx->type->txd_ring_mask; - stop_index = (index + 1) & mask; - read_ptr = tx_queue->read_count & mask; + stop_index = (index + 1) & EFX_TXQ_MASK; + read_ptr = tx_queue->read_count & EFX_TXQ_MASK; while (read_ptr != stop_index) { struct efx_tx_buffer *buffer = &tx_queue->buffer[read_ptr]; @@ -338,7 +334,7 @@ static void efx_dequeue_buffers(struct efx_tx_queue *tx_queue, buffer->len = 0; ++tx_queue->read_count; - read_ptr = tx_queue->read_count & mask; + read_ptr = tx_queue->read_count & EFX_TXQ_MASK; } } @@ -391,7 +387,7 @@ void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index) unsigned fill_level; struct efx_nic *efx = tx_queue->efx; - EFX_BUG_ON_PARANOID(index > efx->type->txd_ring_mask); + EFX_BUG_ON_PARANOID(index > EFX_TXQ_MASK); efx_dequeue_buffers(tx_queue, index); @@ -401,7 +397,7 @@ void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index) smp_mb(); if (unlikely(tx_queue->stopped) && likely(efx->port_enabled)) { fill_level = tx_queue->insert_count - tx_queue->read_count; - if (fill_level < EFX_NETDEV_TX_THRESHOLD(tx_queue)) { + if (fill_level < EFX_TXQ_THRESHOLD) { EFX_BUG_ON_PARANOID(!efx_dev_registered(efx)); /* Do this under netif_tx_lock(), to avoid racing @@ -425,11 +421,11 @@ int efx_probe_tx_queue(struct efx_tx_queue *tx_queue) EFX_LOG(efx, "creating TX queue %d\n", tx_queue->queue); /* Allocate software ring */ - txq_size = (efx->type->txd_ring_mask + 1) * sizeof(*tx_queue->buffer); + txq_size = EFX_TXQ_SIZE * sizeof(*tx_queue->buffer); tx_queue->buffer = kzalloc(txq_size, GFP_KERNEL); if (!tx_queue->buffer) return -ENOMEM; - for (i = 0; i <= efx->type->txd_ring_mask; ++i) + for (i = 0; i <= EFX_TXQ_MASK; ++i) tx_queue->buffer[i].continuation = true; /* Allocate hardware ring */ @@ -468,8 +464,7 @@ void efx_release_tx_buffers(struct efx_tx_queue *tx_queue) /* Free any buffers left in the ring */ while (tx_queue->read_count != tx_queue->write_count) { - buffer = &tx_queue->buffer[tx_queue->read_count & - tx_queue->efx->type->txd_ring_mask]; + buffer = &tx_queue->buffer[tx_queue->read_count & EFX_TXQ_MASK]; efx_dequeue_buffer(tx_queue, buffer); buffer->continuation = true; buffer->len = 0; @@ -715,7 +710,7 @@ static int efx_tx_queue_insert(struct efx_tx_queue *tx_queue, fill_level = tx_queue->insert_count - tx_queue->old_read_count; /* -1 as there is no way to represent all descriptors used */ - q_space = efx->type->txd_ring_mask - 1 - fill_level; + q_space = EFX_TXQ_MASK - 1 - fill_level; while (1) { if (unlikely(q_space-- <= 0)) { @@ -731,7 +726,7 @@ static int efx_tx_queue_insert(struct efx_tx_queue *tx_queue, *(volatile unsigned *)&tx_queue->read_count; fill_level = (tx_queue->insert_count - tx_queue->old_read_count); - q_space = efx->type->txd_ring_mask - 1 - fill_level; + q_space = EFX_TXQ_MASK - 1 - fill_level; if (unlikely(q_space-- <= 0)) { *final_buffer = NULL; return 1; @@ -740,13 +735,13 @@ static int efx_tx_queue_insert(struct efx_tx_queue *tx_queue, --tx_queue->stopped; } - insert_ptr = tx_queue->insert_count & efx->type->txd_ring_mask; + insert_ptr = tx_queue->insert_count & EFX_TXQ_MASK; buffer = &tx_queue->buffer[insert_ptr]; ++tx_queue->insert_count; EFX_BUG_ON_PARANOID(tx_queue->insert_count - tx_queue->read_count > - efx->type->txd_ring_mask); + EFX_TXQ_MASK); efx_tsoh_free(tx_queue, buffer); EFX_BUG_ON_PARANOID(buffer->len); @@ -792,8 +787,7 @@ static void efx_tso_put_header(struct efx_tx_queue *tx_queue, { struct efx_tx_buffer *buffer; - buffer = &tx_queue->buffer[tx_queue->insert_count & - tx_queue->efx->type->txd_ring_mask]; + buffer = &tx_queue->buffer[tx_queue->insert_count & EFX_TXQ_MASK]; efx_tsoh_free(tx_queue, buffer); EFX_BUG_ON_PARANOID(buffer->len); EFX_BUG_ON_PARANOID(buffer->unmap_len); @@ -818,7 +812,7 @@ static void efx_enqueue_unwind(struct efx_tx_queue *tx_queue) while (tx_queue->insert_count != tx_queue->write_count) { --tx_queue->insert_count; buffer = &tx_queue->buffer[tx_queue->insert_count & - tx_queue->efx->type->txd_ring_mask]; + EFX_TXQ_MASK]; efx_tsoh_free(tx_queue, buffer); EFX_BUG_ON_PARANOID(buffer->skb); buffer->len = 0; @@ -1135,7 +1129,7 @@ static void efx_fini_tso(struct efx_tx_queue *tx_queue) unsigned i; if (tx_queue->buffer) { - for (i = 0; i <= tx_queue->efx->type->txd_ring_mask; ++i) + for (i = 0; i <= EFX_TXQ_MASK; ++i) efx_tsoh_free(tx_queue, &tx_queue->buffer[i]); } -- cgit v1.2.3