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qed: Update TCP silly-window-syndrome timeout for iwarp, scsi

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Update TCP silly-window-syndrome timeout, for the cases where
initiator's small TCP window size prevents FW from transmitting
packets on the connection. Timeout causes FW to retransmit
window probes if needed, preventing I/O stall if initiator ignores
first window probe.

Reviewed-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Nikolay Assa <nassa@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nikolay Assa 2021-10-04 09:58:49 +03:00 • committed by David S. Miller
parent 6c95dd8f0a
commit 3a6f5d0cbd
3 changed files with 4 additions and 0 deletions
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1
drivers/net/ethernet/qlogic/qed/qed_iwarp.c
View file

@ -114,6 +114,7 @@ qed_iwarp_init_fw_ramrod(struct qed_hwfn *p_hwfn,
RESC_START(p_hwfn, QED_LL2_RAM_QUEUE) +
p_hwfn->p_rdma_info->iwarp.ll2_ooo_handle;
p_ramrod->tcp.tx_sws_timer = cpu_to_le16(QED_TX_SWS_TIMER_DFLT);
p_ramrod->tcp.max_fin_rt = QED_IWARP_MAX_FIN_RT_DEFAULT;
return;

1
drivers/scsi/qedi/qedi_main.c
View file

@ -866,6 +866,7 @@ static int qedi_set_iscsi_pf_param(struct qedi_ctx *qedi)
qedi->pf_params.iscsi_pf_params.num_queues = qedi->num_queues;
qedi->pf_params.iscsi_pf_params.debug_mode = qedi_fw_debug;
qedi->pf_params.iscsi_pf_params.two_msl_timer = 4000;
qedi->pf_params.iscsi_pf_params.tx_sws_timer = QED_TX_SWS_TIMER_DFLT;
qedi->pf_params.iscsi_pf_params.max_fin_rt = 2;
for (log_page_size = 0 ; log_page_size < 32 ; log_page_size++) {

2
include/linux/qed/qed_if.h
View file

@ -24,6 +24,8 @@
#include <linux/io-64-nonatomic-lo-hi.h>
#include <net/devlink.h>
#define QED_TX_SWS_TIMER_DFLT 500
enum dcbx_protocol_type {
DCBX_PROTOCOL_ISCSI,
DCBX_PROTOCOL_FCOE,