Merge tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This is an assorted set of stragglers into the merge window with
  driver updates for qla2xxx, megaraid_sas, storvsc and ufs.

  It also includes pulls of the uapi tree (all the remaining SCSI
  pieces) and the fcoe tree (updates to fcoe and libfc)"

* tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (81 commits)
  [SCSI] ufs: Separate PCI code into glue driver
  [SCSI] ufs: Segregate PCI Specific Code
  [SCSI] scsi: fix lpfc build when wmb() is defined as mb()
  [SCSI] storvsc: Handle dynamic resizing of the device
  [SCSI] storvsc: Restructure error handling code on command completion
  [SCSI] storvsc: avoid usage of WRITE_SAME
  [SCSI] aacraid: suppress two GCC warnings
  [SCSI] hpsa: check for dma_mapping_error in hpsa_passthru ioctls
  [SCSI] hpsa: reorganize error handling in hpsa_passthru_ioctl
  [SCSI] hpsa: check for dma_mapping_error in hpsa_map_sg_chain_block
  [SCSI] hpsa: Check for dma_mapping_error for all code paths using fill_cmd
  [SCSI] hpsa: Check for dma_mapping_error in hpsa_map_one
  [SCSI] dc395x: uninitialized variable in device_alloc()
  [SCSI] Fix range check in scsi_host_dif_capable()
  [SCSI] storvsc: Initialize the sglist
  [SCSI] mpt2sas: Add support for OEM specific controller
  [SCSI] ipr: Fix oops while resetting an ipr adapter
  [SCSI] fnic: Fnic Trace Utility
  [SCSI] fnic: New debug flags and debug log messages
  [SCSI] fnic: fnic driver may hit BUG_ON on device reset
  ...

1 files changed, 126 insertions, 73 deletions

diff --git a/drivers/scsi/qla2xxx/qla_bsg.c b/drivers/scsi/qla2xxx/qla_bsg.c
index 9f34dedcdad7..ad54099cb805 100644
--- a/drivers/scsi/qla2xxx/qla_bsg.c
+++ b/drivers/scsi/qla2xxx/qla_bsg.c
@@ -27,7 +27,7 @@ void
 qla2x00_bsg_sp_free(void *data, void *ptr)
 {
 	srb_t *sp = (srb_t *)ptr;
-	struct scsi_qla_host *vha = (scsi_qla_host_t *)data;
+	struct scsi_qla_host *vha = sp->fcport->vha;
 	struct fc_bsg_job *bsg_job = sp->u.bsg_job;
 	struct qla_hw_data *ha = vha->hw;
 
@@ -40,7 +40,7 @@ qla2x00_bsg_sp_free(void *data, void *ptr)
 	if (sp->type == SRB_CT_CMD ||
 	    sp->type == SRB_ELS_CMD_HST)
 		kfree(sp->fcport);
-	mempool_free(sp, vha->hw->srb_mempool);
+	qla2x00_rel_sp(vha, sp);
 }
 
 int
@@ -368,7 +368,7 @@ qla2x00_process_els(struct fc_bsg_job *bsg_job)
 	if (rval != QLA_SUCCESS) {
 		ql_log(ql_log_warn, vha, 0x700e,
 		    "qla2x00_start_sp failed = %d\n", rval);
-		mempool_free(sp, ha->srb_mempool);
+		qla2x00_rel_sp(vha, sp);
 		rval = -EIO;
 		goto done_unmap_sg;
 	}
@@ -515,7 +515,7 @@ qla2x00_process_ct(struct fc_bsg_job *bsg_job)
 	if (rval != QLA_SUCCESS) {
 		ql_log(ql_log_warn, vha, 0x7017,
 		    "qla2x00_start_sp failed=%d.\n", rval);
-		mempool_free(sp, ha->srb_mempool);
+		qla2x00_rel_sp(vha, sp);
 		rval = -EIO;
 		goto done_free_fcport;
 	}
@@ -531,6 +531,75 @@ done_unmap_sg:
 done:
 	return rval;
 }
+
+/* Disable loopback mode */
+static inline int
+qla81xx_reset_loopback_mode(scsi_qla_host_t *vha, uint16_t *config,
+			    int wait, int wait2)
+{
+	int ret = 0;
+	int rval = 0;
+	uint16_t new_config[4];
+	struct qla_hw_data *ha = vha->hw;
+
+	if (!IS_QLA81XX(ha) && !IS_QLA8031(ha))
+		goto done_reset_internal;
+
+	memset(new_config, 0 , sizeof(new_config));
+	if ((config[0] & INTERNAL_LOOPBACK_MASK) >> 1 ==
+	    ENABLE_INTERNAL_LOOPBACK ||
+	    (config[0] & INTERNAL_LOOPBACK_MASK) >> 1 ==
+	    ENABLE_EXTERNAL_LOOPBACK) {
+		new_config[0] = config[0] & ~INTERNAL_LOOPBACK_MASK;
+		ql_dbg(ql_dbg_user, vha, 0x70bf, "new_config[0]=%02x\n",
+		    (new_config[0] & INTERNAL_LOOPBACK_MASK));
+		memcpy(&new_config[1], &config[1], sizeof(uint16_t) * 3) ;
+
+		ha->notify_dcbx_comp = wait;
+		ha->notify_lb_portup_comp = wait2;
+
+		ret = qla81xx_set_port_config(vha, new_config);
+		if (ret != QLA_SUCCESS) {
+			ql_log(ql_log_warn, vha, 0x7025,
+			    "Set port config failed.\n");
+			ha->notify_dcbx_comp = 0;
+			ha->notify_lb_portup_comp = 0;
+			rval = -EINVAL;
+			goto done_reset_internal;
+		}
+
+		/* Wait for DCBX complete event */
+		if (wait && !wait_for_completion_timeout(&ha->dcbx_comp,
+			(DCBX_COMP_TIMEOUT * HZ))) {
+			ql_dbg(ql_dbg_user, vha, 0x7026,
+			    "DCBX completion not received.\n");
+			ha->notify_dcbx_comp = 0;
+			ha->notify_lb_portup_comp = 0;
+			rval = -EINVAL;
+			goto done_reset_internal;
+		} else
+			ql_dbg(ql_dbg_user, vha, 0x7027,
+			    "DCBX completion received.\n");
+
+		if (wait2 &&
+		    !wait_for_completion_timeout(&ha->lb_portup_comp,
+		    (LB_PORTUP_COMP_TIMEOUT * HZ))) {
+			ql_dbg(ql_dbg_user, vha, 0x70c5,
+			    "Port up completion not received.\n");
+			ha->notify_lb_portup_comp = 0;
+			rval = -EINVAL;
+			goto done_reset_internal;
+		} else
+			ql_dbg(ql_dbg_user, vha, 0x70c6,
+			    "Port up completion received.\n");
+
+		ha->notify_dcbx_comp = 0;
+		ha->notify_lb_portup_comp = 0;
+	}
+done_reset_internal:
+	return rval;
+}
+
 /*
  * Set the port configuration to enable the internal or external loopback
  * depending on the loopback mode.
@@ -566,9 +635,19 @@ qla81xx_set_loopback_mode(scsi_qla_host_t *vha, uint16_t *config,
 	}
 
 	/* Wait for DCBX complete event */
-	if (!wait_for_completion_timeout(&ha->dcbx_comp, (20 * HZ))) {
+	if (!wait_for_completion_timeout(&ha->dcbx_comp,
+	    (DCBX_COMP_TIMEOUT * HZ))) {
 		ql_dbg(ql_dbg_user, vha, 0x7022,
-		    "State change notification not received.\n");
+		    "DCBX completion not received.\n");
+		ret = qla81xx_reset_loopback_mode(vha, new_config, 0, 0);
+		/*
+		 * If the reset of the loopback mode doesn't work take a FCoE
+		 * dump and reset the chip.
+		 */
+		if (ret) {
+			ha->isp_ops->fw_dump(vha, 0);
+			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+		}
 		rval = -EINVAL;
 	} else {
 		if (ha->flags.idc_compl_status) {
@@ -578,7 +657,7 @@ qla81xx_set_loopback_mode(scsi_qla_host_t *vha, uint16_t *config,
 			ha->flags.idc_compl_status = 0;
 		} else
 			ql_dbg(ql_dbg_user, vha, 0x7023,
-			    "State change received.\n");
+			    "DCBX completion received.\n");
 	}
 
 	ha->notify_dcbx_comp = 0;
@@ -587,57 +666,6 @@ done_set_internal:
 	return rval;
 }
 
-/* Disable loopback mode */
-static inline int
-qla81xx_reset_loopback_mode(scsi_qla_host_t *vha, uint16_t *config,
-    int wait)
-{
-	int ret = 0;
-	int rval = 0;
-	uint16_t new_config[4];
-	struct qla_hw_data *ha = vha->hw;
-
-	if (!IS_QLA81XX(ha) && !IS_QLA8031(ha))
-		goto done_reset_internal;
-
-	memset(new_config, 0 , sizeof(new_config));
-	if ((config[0] & INTERNAL_LOOPBACK_MASK) >> 1 ==
-	    ENABLE_INTERNAL_LOOPBACK ||
-	    (config[0] & INTERNAL_LOOPBACK_MASK) >> 1 ==
-	    ENABLE_EXTERNAL_LOOPBACK) {
-		new_config[0] = config[0] & ~INTERNAL_LOOPBACK_MASK;
-		ql_dbg(ql_dbg_user, vha, 0x70bf, "new_config[0]=%02x\n",
-		    (new_config[0] & INTERNAL_LOOPBACK_MASK));
-		memcpy(&new_config[1], &config[1], sizeof(uint16_t) * 3) ;
-
-		ha->notify_dcbx_comp = wait;
-		ret = qla81xx_set_port_config(vha, new_config);
-		if (ret != QLA_SUCCESS) {
-			ql_log(ql_log_warn, vha, 0x7025,
-			    "Set port config failed.\n");
-			ha->notify_dcbx_comp = 0;
-			rval = -EINVAL;
-			goto done_reset_internal;
-		}
-
-		/* Wait for DCBX complete event */
-		if (wait && !wait_for_completion_timeout(&ha->dcbx_comp,
-			(20 * HZ))) {
-			ql_dbg(ql_dbg_user, vha, 0x7026,
-			    "State change notification not received.\n");
-			ha->notify_dcbx_comp = 0;
-			rval = -EINVAL;
-			goto done_reset_internal;
-		} else
-			ql_dbg(ql_dbg_user, vha, 0x7027,
-			    "State change received.\n");
-
-		ha->notify_dcbx_comp = 0;
-	}
-done_reset_internal:
-	return rval;
-}
-
 static int
 qla2x00_process_loopback(struct fc_bsg_job *bsg_job)
 {
@@ -739,6 +767,7 @@ qla2x00_process_loopback(struct fc_bsg_job *bsg_job)
 		if (IS_QLA81XX(ha) || IS_QLA8031(ha)) {
 			memset(config, 0, sizeof(config));
 			memset(new_config, 0, sizeof(new_config));
+
 			if (qla81xx_get_port_config(vha, config)) {
 				ql_log(ql_log_warn, vha, 0x701f,
 				    "Get port config failed.\n");
@@ -746,6 +775,14 @@ qla2x00_process_loopback(struct fc_bsg_job *bsg_job)
 				goto done_free_dma_rsp;
 			}
 
+			if ((config[0] & INTERNAL_LOOPBACK_MASK) != 0) {
+				ql_dbg(ql_dbg_user, vha, 0x70c4,
+				    "Loopback operation already in "
+				    "progress.\n");
+				rval = -EAGAIN;
+				goto done_free_dma_rsp;
+			}
+
 			ql_dbg(ql_dbg_user, vha, 0x70c0,
 			    "elreq.options=%04x\n", elreq.options);
 
@@ -755,7 +792,7 @@ qla2x00_process_loopback(struct fc_bsg_job *bsg_job)
 					    config, new_config, elreq.options);
 				else
 					rval = qla81xx_reset_loopback_mode(vha,
-					    config, 1);
+					    config, 1, 0);
 			else
 				rval = qla81xx_set_loopback_mode(vha, config,
 				    new_config, elreq.options);
@@ -772,14 +809,6 @@ qla2x00_process_loopback(struct fc_bsg_job *bsg_job)
 			command_sent = INT_DEF_LB_LOOPBACK_CMD;
 			rval = qla2x00_loopback_test(vha, &elreq, response);
 
-			if (new_config[0]) {
-				/* Revert back to original port config
-				 * Also clear internal loopback
-				 */
-				qla81xx_reset_loopback_mode(vha,
-				    new_config, 0);
-			}
-
 			if (response[0] == MBS_COMMAND_ERROR &&
 					response[1] == MBS_LB_RESET) {
 				ql_log(ql_log_warn, vha, 0x7029,
@@ -788,15 +817,39 @@ qla2x00_process_loopback(struct fc_bsg_job *bsg_job)
 				qla2xxx_wake_dpc(vha);
 				qla2x00_wait_for_chip_reset(vha);
 				/* Also reset the MPI */
-				if (qla81xx_restart_mpi_firmware(vha) !=
-				    QLA_SUCCESS) {
-					ql_log(ql_log_warn, vha, 0x702a,
-					    "MPI reset failed.\n");
+				if (IS_QLA81XX(ha)) {
+					if (qla81xx_restart_mpi_firmware(vha) !=
+					    QLA_SUCCESS) {
+						ql_log(ql_log_warn, vha, 0x702a,
+						    "MPI reset failed.\n");
+					}
 				}
 
 				rval = -EIO;
 				goto done_free_dma_rsp;
 			}
+
+			if (new_config[0]) {
+				int ret;
+
+				/* Revert back to original port config
+				 * Also clear internal loopback
+				 */
+				ret = qla81xx_reset_loopback_mode(vha,
+				    new_config, 0, 1);
+				if (ret) {
+					/*
+					 * If the reset of the loopback mode
+					 * doesn't work take FCoE dump and then
+					 * reset the chip.
+					 */
+					ha->isp_ops->fw_dump(vha, 0);
+					set_bit(ISP_ABORT_NEEDED,
+					    &vha->dpc_flags);
+				}
+
+			}
+
 		} else {
 			type = "FC_BSG_HST_VENDOR_LOOPBACK";
 			ql_dbg(ql_dbg_user, vha, 0x702b,
@@ -1950,7 +2003,7 @@ qla24xx_bsg_timeout(struct fc_bsg_job *bsg_job)
 		if (!req)
 			continue;
 
-		for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
+		for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
 			sp = req->outstanding_cmds[cnt];
 			if (sp) {
 				if (((sp->type == SRB_CT_CMD) ||
@@ -1985,6 +2038,6 @@ done:
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 	if (bsg_job->request->msgcode == FC_BSG_HST_CT)
 		kfree(sp->fcport);
-	mempool_free(sp, ha->srb_mempool);
+	qla2x00_rel_sp(vha, sp);
 	return 0;
 }