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| author | Ben Hutchings <bhutchings@solarflare.com> | 2012-05-22 01:27:58 +0100 |
|---|---|---|
| committer | Ben Hutchings <bhutchings@solarflare.com> | 2012-08-24 19:00:27 +0100 |
| commit | 14bf718fb97efe9ff649c317e7d87a3617b13e7c (patch) | |
| tree | 421f6e0546d8d04ccad78292178c0fc560773a12 /drivers/net/ethernet/sfc/net_driver.h | |
| parent | 7668ff9c2ad7d354655e23afa836a92d54d2ea63 (diff) | |
| download | talos-op-linux-14bf718fb97efe9ff649c317e7d87a3617b13e7c.tar.gz talos-op-linux-14bf718fb97efe9ff649c317e7d87a3617b13e7c.zip | |
sfc: Stop TX queues before they fill up
We now have a definite upper bound on the number of descriptors per
skb; use that to stop the queue when the next packet might not fit.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Diffstat (limited to 'drivers/net/ethernet/sfc/net_driver.h')
| -rw-r--r-- | drivers/net/ethernet/sfc/net_driver.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h index 0ac01fa6e63c..28a6d6258692 100644 --- a/drivers/net/ethernet/sfc/net_driver.h +++ b/drivers/net/ethernet/sfc/net_driver.h @@ -665,6 +665,8 @@ struct vfdi_status; * should be allocated for this NIC * @rxq_entries: Size of receive queues requested by user. * @txq_entries: Size of transmit queues requested by user. + * @txq_stop_thresh: TX queue fill level at or above which we stop it. + * @txq_wake_thresh: TX queue fill level at or below which we wake it. * @tx_dc_base: Base qword address in SRAM of TX queue descriptor caches * @rx_dc_base: Base qword address in SRAM of RX queue descriptor caches * @sram_lim_qw: Qword address limit of SRAM @@ -775,6 +777,9 @@ struct efx_nic { unsigned rxq_entries; unsigned txq_entries; + unsigned int txq_stop_thresh; + unsigned int txq_wake_thresh; + unsigned tx_dc_base; unsigned rx_dc_base; unsigned sram_lim_qw; |
