From 650ce64c9eada94bd40c6a71c77b19d6f38a03a1 Mon Sep 17 00:00:00 2001 From: Chad Dupuis Date: Tue, 26 Mar 2019 00:38:34 -0700 Subject: [PATCH] scsi: qedf: Correct xid range overlap between offloaded requests and libfc requests There is currently an overlap where exchange IDs between what is used for offloaded commands and by libfc for ELS commands. Correct this so that exchange ID range is: Offloaded requests: 0 to 0xfff libfc requests: 0x1000 to 0xfffe Signed-off-by: Chad Dupuis Signed-off-by: Saurav Kashyap Signed-off-by: Martin K. Petersen --- drivers/scsi/qedf/qedf.h | 5 ----- drivers/scsi/qedf/qedf_io.c | 6 +++--- drivers/scsi/qedf/qedf_main.c | 13 ++++--------- 3 files changed, 7 insertions(+), 17 deletions(-) diff --git a/drivers/scsi/qedf/qedf.h b/drivers/scsi/qedf/qedf.h index 2c78d8f..8e75c21 100644 --- a/drivers/scsi/qedf/qedf.h +++ b/drivers/scsi/qedf/qedf.h @@ -35,9 +35,6 @@ #define QEDF_DESCR "QLogic FCoE Offload Driver" #define QEDF_MODULE_NAME "qedf" -#define QEDF_MIN_XID 0 -#define QEDF_MAX_SCSI_XID (NUM_TASKS_PER_CONNECTION - 1) -#define QEDF_MAX_ELS_XID 4095 #define QEDF_FLOGI_RETRY_CNT 3 #define QEDF_RPORT_RETRY_CNT 255 #define QEDF_MAX_SESSIONS 1024 @@ -295,8 +292,6 @@ struct qedf_ctx { #define QEDF_DCBX_PENDING 0 #define QEDF_DCBX_DONE 1 atomic_t dcbx; - uint16_t max_scsi_xid; - uint16_t max_els_xid; #define QEDF_NULL_VLAN_ID -1 #define QEDF_FALLBACK_VLAN 1002 #define QEDF_DEFAULT_PRIO 3 diff --git a/drivers/scsi/qedf/qedf_io.c b/drivers/scsi/qedf/qedf_io.c index 6ca583b..7c2ecf3 100644 --- a/drivers/scsi/qedf/qedf_io.c +++ b/drivers/scsi/qedf/qedf_io.c @@ -103,7 +103,7 @@ void qedf_cmd_mgr_free(struct qedf_cmd_mgr *cmgr) struct io_bdt *bdt_info; struct qedf_ctx *qedf = cmgr->qedf; size_t bd_tbl_sz; - u16 min_xid = QEDF_MIN_XID; + u16 min_xid = 0; u16 max_xid = (FCOE_PARAMS_NUM_TASKS - 1); int num_ios; int i; @@ -169,7 +169,7 @@ struct qedf_cmd_mgr *qedf_cmd_mgr_alloc(struct qedf_ctx *qedf) u16 xid; int i; int num_ios; - u16 min_xid = QEDF_MIN_XID; + u16 min_xid = 0; u16 max_xid = (FCOE_PARAMS_NUM_TASKS - 1); /* Make sure num_queues is already set before calling this function */ @@ -201,7 +201,7 @@ struct qedf_cmd_mgr *qedf_cmd_mgr_alloc(struct qedf_ctx *qedf) /* * Initialize I/O request fields. */ - xid = QEDF_MIN_XID; + xid = 0; for (i = 0; i < num_ios; i++) { io_req = &cmgr->cmds[i]; diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c index 9f9431a..2de7fd9 100644 --- a/drivers/scsi/qedf/qedf_main.c +++ b/drivers/scsi/qedf/qedf_main.c @@ -1501,8 +1501,8 @@ static int qedf_lport_setup(struct qedf_ctx *qedf) fcoe_libfc_config(lport, &qedf->ctlr, &qedf_lport_template, 0); /* Allocate the exchange manager */ - fc_exch_mgr_alloc(lport, FC_CLASS_3, qedf->max_scsi_xid + 1, - qedf->max_els_xid, NULL); + fc_exch_mgr_alloc(lport, FC_CLASS_3, FCOE_PARAMS_NUM_TASKS, + 0xfffe, NULL); if (fc_lport_init_stats(lport)) return -ENOMEM; @@ -1625,7 +1625,7 @@ static int qedf_vport_create(struct fc_vport *vport, bool disabled) vport_qedf->wwpn = vn_port->wwpn; vn_port->host->transportt = qedf_fc_vport_transport_template; - vn_port->host->can_queue = QEDF_MAX_ELS_XID; + vn_port->host->can_queue = FCOE_PARAMS_NUM_TASKS; vn_port->host->max_lun = qedf_max_lun; vn_port->host->sg_tablesize = QEDF_MAX_BDS_PER_CMD; vn_port->host->max_cmd_len = QEDF_MAX_CDB_LEN; @@ -3181,11 +3181,6 @@ static int __qedf_probe(struct pci_dev *pdev, int mode) sprintf(host_buf, "host_%d", host->host_no); qed_ops->common->set_name(qedf->cdev, host_buf); - - /* Set xid max values */ - qedf->max_scsi_xid = QEDF_MAX_SCSI_XID; - qedf->max_els_xid = QEDF_MAX_ELS_XID; - /* Allocate cmd mgr */ qedf->cmd_mgr = qedf_cmd_mgr_alloc(qedf); if (!qedf->cmd_mgr) { @@ -3196,9 +3191,9 @@ static int __qedf_probe(struct pci_dev *pdev, int mode) if (mode != QEDF_MODE_RECOVERY) { host->transportt = qedf_fc_transport_template; - host->can_queue = QEDF_MAX_ELS_XID; host->max_lun = qedf_max_lun; host->max_cmd_len = QEDF_MAX_CDB_LEN; + host->can_queue = FCOE_PARAMS_NUM_TASKS; rc = scsi_add_host(host, &pdev->dev); if (rc) goto err6; -- 2.7.4