diff options
Diffstat (limited to 'drivers/net/ethernet/sfc/tx.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/tx.c | 35 |
1 files changed, 14 insertions, 21 deletions
diff --git a/drivers/net/ethernet/sfc/tx.c b/drivers/net/ethernet/sfc/tx.c index 5e090e54298..2ac91c5b5ee 100644 --- a/drivers/net/ethernet/sfc/tx.c +++ b/drivers/net/ethernet/sfc/tx.c @@ -1,7 +1,7 @@ /**************************************************************************** - * Driver for Solarflare Solarstorm network controllers and boards + * Driver for Solarflare network controllers and boards * Copyright 2005-2006 Fen Systems Ltd. - * Copyright 2005-2010 Solarflare Communications Inc. + * Copyright 2005-2013 Solarflare Communications Inc. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published @@ -306,7 +306,9 @@ static void efx_dequeue_buffers(struct efx_tx_queue *tx_queue, while (read_ptr != stop_index) { struct efx_tx_buffer *buffer = &tx_queue->buffer[read_ptr]; - if (unlikely(buffer->len == 0)) { + + if (!(buffer->flags & EFX_TX_BUF_OPTION) && + unlikely(buffer->len == 0)) { netif_err(efx, tx_err, efx->net_dev, "TX queue %d spurious TX completion id %x\n", tx_queue->queue, read_ptr); @@ -437,6 +439,9 @@ void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index) efx_dequeue_buffers(tx_queue, index, &pkts_compl, &bytes_compl); netdev_tx_completed_queue(tx_queue->core_txq, pkts_compl, bytes_compl); + if (pkts_compl > 1) + ++tx_queue->merge_events; + /* See if we need to restart the netif queue. This memory * barrier ensures that we write read_count (inside * efx_dequeue_buffers()) before reading the queue status. @@ -543,10 +548,13 @@ void efx_init_tx_queue(struct efx_tx_queue *tx_queue) tx_queue->initialised = true; } -void efx_release_tx_buffers(struct efx_tx_queue *tx_queue) +void efx_fini_tx_queue(struct efx_tx_queue *tx_queue) { struct efx_tx_buffer *buffer; + netif_dbg(tx_queue->efx, drv, tx_queue->efx->net_dev, + "shutting down TX queue %d\n", tx_queue->queue); + if (!tx_queue->buffer) return; @@ -561,22 +569,6 @@ void efx_release_tx_buffers(struct efx_tx_queue *tx_queue) netdev_tx_reset_queue(tx_queue->core_txq); } -void efx_fini_tx_queue(struct efx_tx_queue *tx_queue) -{ - if (!tx_queue->initialised) - return; - - netif_dbg(tx_queue->efx, drv, tx_queue->efx->net_dev, - "shutting down TX queue %d\n", tx_queue->queue); - - tx_queue->initialised = false; - - /* Flush TX queue, remove descriptor ring */ - efx_nic_fini_tx(tx_queue); - - efx_release_tx_buffers(tx_queue); -} - void efx_remove_tx_queue(struct efx_tx_queue *tx_queue) { int i; @@ -708,7 +700,8 @@ static u8 *efx_tsoh_get_buffer(struct efx_tx_queue *tx_queue, TSOH_STD_SIZE * (index % TSOH_PER_PAGE) + TSOH_OFFSET; if (unlikely(!page_buf->addr) && - efx_nic_alloc_buffer(tx_queue->efx, page_buf, PAGE_SIZE)) + efx_nic_alloc_buffer(tx_queue->efx, page_buf, PAGE_SIZE, + GFP_ATOMIC)) return NULL; result = (u8 *)page_buf->addr + offset; |