scsi: qla2xxx: Add Unsolicited LS Request and Response Support for NVMe
Introduce infrastructure in the driver to support the processing of
unsolicited LS (Link Service) requests. This will involve the utilization
of a new pass-up of unsolicited FC-NVMe request IOCB interface. Unsolicited
requests will be submitted to the NVMe transport layer through
nvme_fc_rcv_ls_req(). Any received LS responses, which are sent using
xmt_ls_rsp(), will be forwarded to the firmware through the existing
Pass-Through IOCB interface, responsible for sending FC-NVMe Link Service
requests and responses.
Signed-off-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20230821130045.34850-2-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index f31d0ea..aa49248 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -4457,8 +4457,9 @@ qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
ha->elsrej.size = sizeof(struct fc_els_ls_rjt) + 16;
ha->elsrej.c = dma_alloc_coherent(&ha->pdev->dev,
- ha->elsrej.size, &ha->elsrej.cdma, GFP_KERNEL);
-
+ ha->elsrej.size,
+ &ha->elsrej.cdma,
+ GFP_KERNEL);
if (!ha->elsrej.c) {
ql_dbg_pci(ql_dbg_init, ha->pdev, 0xffff,
"Alloc failed for els reject cmd.\n");
@@ -4467,8 +4468,21 @@ qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
ha->elsrej.c->er_cmd = ELS_LS_RJT;
ha->elsrej.c->er_reason = ELS_RJT_LOGIC;
ha->elsrej.c->er_explan = ELS_EXPL_UNAB_DATA;
+
+ ha->lsrjt.size = sizeof(struct fcnvme_ls_rjt);
+ ha->lsrjt.c = dma_alloc_coherent(&ha->pdev->dev, ha->lsrjt.size,
+ &ha->lsrjt.cdma, GFP_KERNEL);
+ if (!ha->lsrjt.c) {
+ ql_dbg_pci(ql_dbg_init, ha->pdev, 0xffff,
+ "Alloc failed for nvme fc reject cmd.\n");
+ goto fail_lsrjt;
+ }
+
return 0;
+fail_lsrjt:
+ dma_free_coherent(&ha->pdev->dev, ha->elsrej.size,
+ ha->elsrej.c, ha->elsrej.cdma);
fail_elsrej:
dma_pool_destroy(ha->purex_dma_pool);
fail_flt:
@@ -4998,6 +5012,12 @@ qla2x00_mem_free(struct qla_hw_data *ha)
ha->elsrej.c = NULL;
}
+ if (ha->lsrjt.c) {
+ dma_free_coherent(&ha->pdev->dev, ha->lsrjt.size, ha->lsrjt.c,
+ ha->lsrjt.cdma);
+ ha->lsrjt.c = NULL;
+ }
+
ha->init_cb = NULL;
ha->init_cb_dma = 0;
