diff options
| author | Ben Hutchings <bhutchings@solarflare.com> | 2008-09-01 12:49:37 +0100 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-09-24 18:54:37 -0400 |
| commit | 6bc5d3a9334401d788e1adf8b71add211265bc8b (patch) | |
| tree | 250f3de17f38b778ac8a109229c5b3687ab8d15d /drivers/net/sfc/net_driver.h | |
| parent | 92ade881b2fcfc2744d3de43d172d3ec8e13afd7 (diff) | |
sfc: Make queue flushes more reliable
Increase the potential retry count for RX flushes from 5 to 100.
Stop polling the RX_DESC_PTR_TBL to infer that a flush might have
happened. Instead absolutely rely on the flush events, unless bug 7803
applies (Falcon rev A only).
To keep things quick, request flushes for every TX and RX queue up
front, and match up the events to requests.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/net/sfc/net_driver.h')
| -rw-r--r-- | drivers/net/sfc/net_driver.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h index be3d2ba3b74..868ad1e703f 100644 --- a/drivers/net/sfc/net_driver.h +++ b/drivers/net/sfc/net_driver.h @@ -160,6 +160,7 @@ struct efx_tx_buffer { * @channel: The associated channel * @buffer: The software buffer ring * @txd: The hardware descriptor ring + * @flushed: Used when handling queue flushing * @read_count: Current read pointer. * This is the number of buffers that have been removed from both rings. * @stopped: Stopped count. @@ -192,6 +193,7 @@ struct efx_tx_queue { struct efx_nic *nic; struct efx_tx_buffer *buffer; struct efx_special_buffer txd; + bool flushed; /* Members used mainly on the completion path */ unsigned int read_count ____cacheline_aligned_in_smp; @@ -260,6 +262,7 @@ struct efx_rx_buffer { * the remaining space in the allocation. * @buf_dma_addr: Page's DMA address. * @buf_data: Page's host address. + * @flushed: Use when handling queue flushing */ struct efx_rx_queue { struct efx_nic *efx; @@ -285,6 +288,7 @@ struct efx_rx_queue { struct page *buf_page; dma_addr_t buf_dma_addr; char *buf_data; + bool flushed; }; /** |