Commit 3a6f5d0c authored by Nikolay Assa's avatar Nikolay Assa Committed by David S. Miller
Browse files

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



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: default avatarManish Rangankar <mrangankar@marvell.com>
Signed-off-by: default avatarNikolay Assa <nassa@marvell.com>
Signed-off-by: default avatarAriel Elior <aelior@marvell.com>
Signed-off-by: default avatarShai Malin <smalin@marvell.com>
Signed-off-by: default avatarOmkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: default avatarPrabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6c95dd8f

drivers/net/ethernet/qlogic/qed/qed_iwarp.c

+1 −0
Original line number Diff line number Diff line
@@ -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;

drivers/scsi/qedi/qedi_main.c

+1 −0
Original line number Diff line number Diff line
@@ -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++) {

include/linux/qed/qed_if.h

+2 −0
Original line number Diff line number Diff line
@@ -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,