[PATCH v2 11/13] qed: Update TCP silly-window-syndrome timeout for iwarp, scsi
STALE1825d
REVIEWED: 3 (3M)
From: Prabhakar Kushwaha <hidden>
Date: 2021-10-04 07:00:50
Also in:
linux-rdma, linux-scsi
Subsystem:
networking drivers, qlogic ql41xxx iscsi driver, qlogic ql4xxx ethernet driver, scsi subsystem, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Nilesh Javali, Manish Rangankar, "James E.J. Bottomley", "Martin K. Petersen", Linus Torvalds
Revision v2 of 2 in this series; 1 review trailer (1 from subsystem maintainers).
Revisions (2)
- v1 [diff vs current]
- v2 current
From: Nikolay Assa <redacted> 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 <redacted> Signed-off-by: Ariel Elior <redacted> Signed-off-by: Shai Malin <redacted> Signed-off-by: Omkar Kulkarni <redacted> Signed-off-by: Prabhakar Kushwaha <redacted> --- drivers/net/ethernet/qlogic/qed/qed_iwarp.c | 1 + drivers/scsi/qedi/qedi_main.c | 1 + include/linux/qed/qed_if.h | 2 ++ 3 files changed, 4 insertions(+)
diff --git a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
index 186d0048a9d1..b2c0e522e51f 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c@@ -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;
diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c
index fe36ddb82aef..8c2f32655424 100644
--- a/drivers/scsi/qedi/qedi_main.c
+++ b/drivers/scsi/qedi/qedi_main.c@@ -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++) {
diff --git a/include/linux/qed/qed_if.h b/include/linux/qed/qed_if.h
index 4dcd0d37a521..07f8d19421ab 100644
--- a/include/linux/qed/qed_if.h
+++ b/include/linux/qed/qed_if.h@@ -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,
--
2.24.1