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authorQuinn Tran <quinn.tran@cavium.com>2017-12-28 21:33:20 +0100
committerMartin K. Petersen <martin.petersen@oracle.com>2018-01-04 05:41:05 +0100
commit11aea16ab3f5404895146e7aa722e2e9b5bc3b76 (patch)
tree02b0c5cdb27c8958886944162915c402e8213a83 /drivers/scsi/qla2xxx/qla_iocb.c
parentscsi: qla2xxx: Add option for use reserve exch for ELS (diff)
downloadlinux-11aea16ab3f5404895146e7aa722e2e9b5bc3b76.tar.xz
linux-11aea16ab3f5404895146e7aa722e2e9b5bc3b76.zip
scsi: qla2xxx: Add ability to send PRLO
Add ability to send Implicit PRLO to flush IOs from FW back to driver. Signed-off-by: Quinn Tran <quinn.tran@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_iocb.c')
-rw-r--r--drivers/scsi/qla2xxx/qla_iocb.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index d1dfa784d895..14a3f6932c9c 100644
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -3390,6 +3390,20 @@ qla25xx_ctrlvp_iocb(srb_t *sp, struct vp_ctrl_entry_24xx *vce)
vce->vp_idx_map[map] |= 1 << pos;
}
+static void
+qla24xx_prlo_iocb(srb_t *sp, struct logio_entry_24xx *logio)
+{
+ logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
+ logio->control_flags =
+ cpu_to_le16(LCF_COMMAND_PRLO|LCF_IMPL_PRLO);
+
+ logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
+ logio->port_id[0] = sp->fcport->d_id.b.al_pa;
+ logio->port_id[1] = sp->fcport->d_id.b.area;
+ logio->port_id[2] = sp->fcport->d_id.b.domain;
+ logio->vp_index = sp->fcport->vha->vp_idx;
+}
+
int
qla2x00_start_sp(srb_t *sp)
{
@@ -3471,6 +3485,9 @@ qla2x00_start_sp(srb_t *sp)
case SRB_CTRL_VP:
qla25xx_ctrlvp_iocb(sp, pkt);
break;
+ case SRB_PRLO_CMD:
+ qla24xx_prlo_iocb(sp, pkt);
+ break;
default:
break;
}