5.15-stable review patch. If anyone has any objections, please let me know.
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From: Quinn Tran qutran@marvell.com
commit 5d3148d8e8b05f084e607ac3bd55a4c317a9f934 upstream.
Task management can retry up to 5 times when FW resource becomes bottle neck. Between the retries, there is a short sleep. Current code assumes the chip has not reset or session has not changed.
Check for chip reset or session change before sending Task management.
Cc: stable@vger.kernel.org Fixes: 9803fb5d2759 ("scsi: qla2xxx: Fix task management cmd failure") Signed-off-by: Quinn Tran qutran@marvell.com Signed-off-by: Nilesh Javali njavali@marvell.com Link: https://lore.kernel.org/r/20230714070104.40052-9-njavali@marvell.com Reviewed-by: Himanshu Madhani himanshu.madhani@oracle.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/scsi/qla2xxx/qla_init.c | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-)
--- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -2040,10 +2040,14 @@ static void qla_marker_sp_done(srb_t *sp complete(&tmf->u.tmf.comp); }
-#define START_SP_W_RETRIES(_sp, _rval) \ +#define START_SP_W_RETRIES(_sp, _rval, _chip_gen, _login_gen) \ {\ int cnt = 5; \ do { \ + if (_chip_gen != sp->vha->hw->chip_reset || _login_gen != sp->fcport->login_gen) {\ + _rval = EINVAL; \ + break; \ + } \ _rval = qla2x00_start_sp(_sp); \ if (_rval == EAGAIN) \ msleep(1); \ @@ -2066,6 +2070,7 @@ qla26xx_marker(struct tmf_arg *arg) srb_t *sp; int rval = QLA_FUNCTION_FAILED; fc_port_t *fcport = arg->fcport; + u32 chip_gen, login_gen;
if (TMF_NOT_READY(arg->fcport)) { ql_dbg(ql_dbg_taskm, vha, 0x8039, @@ -2075,6 +2080,9 @@ qla26xx_marker(struct tmf_arg *arg) return QLA_SUSPENDED; }
+ chip_gen = vha->hw->chip_reset; + login_gen = fcport->login_gen; + /* ref: INIT */ sp = qla2xxx_get_qpair_sp(vha, arg->qpair, fcport, GFP_KERNEL); if (!sp) @@ -2092,7 +2100,7 @@ qla26xx_marker(struct tmf_arg *arg) tm_iocb->u.tmf.loop_id = fcport->loop_id; tm_iocb->u.tmf.vp_index = vha->vp_idx;
- START_SP_W_RETRIES(sp, rval); + START_SP_W_RETRIES(sp, rval, chip_gen, login_gen);
ql_dbg(ql_dbg_taskm, vha, 0x8006, "Async-marker hdl=%x loop-id=%x portid=%06x modifier=%x lun=%lld qp=%d rval %d.\n", @@ -2161,6 +2169,9 @@ __qla2x00_async_tm_cmd(struct tmf_arg *a return QLA_SUSPENDED; }
+ chip_gen = vha->hw->chip_reset; + login_gen = fcport->login_gen; + /* ref: INIT */ sp = qla2xxx_get_qpair_sp(vha, arg->qpair, fcport, GFP_KERNEL); if (!sp) @@ -2178,7 +2189,7 @@ __qla2x00_async_tm_cmd(struct tmf_arg *a tm_iocb->u.tmf.flags = arg->flags; tm_iocb->u.tmf.lun = arg->lun;
- START_SP_W_RETRIES(sp, rval); + START_SP_W_RETRIES(sp, rval, chip_gen, login_gen);
ql_dbg(ql_dbg_taskm, vha, 0x802f, "Async-tmf hdl=%x loop-id=%x portid=%06x ctrl=%x lun=%lld qp=%d rval=%x.\n", @@ -2197,9 +2208,6 @@ __qla2x00_async_tm_cmd(struct tmf_arg *a }
if (!test_bit(UNLOADING, &vha->dpc_flags) && !IS_QLAFX00(vha->hw)) { - chip_gen = vha->hw->chip_reset; - login_gen = fcport->login_gen; - jif = jiffies; if (qla_tmf_wait(arg)) { ql_log(ql_log_info, vha, 0x803e,