[SCSI] qla2xxx: Add ISP82XX support.

Enhanced the driver to support new FCoE host bus adapter.

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 207 insertions, 26 deletions

diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 8517aa49744a..55540d2d4e38 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -328,6 +328,7 @@ qla2x00_initialize_adapter(scsi_qla_host_t *vha)
                 if (rval)
                         return (rval);
         }
+
         if (IS_QLA84XX(ha)) {
                 ha->cs84xx = qla84xx_get_chip(vha);
                 if (!ha->cs84xx) {
@@ -961,6 +962,9 @@ qla24xx_chip_diag(scsi_qla_host_t *vha)
         struct qla_hw_data *ha = vha->hw;
         struct req_que *req = ha->req_q_map[0];
 
+        if (IS_QLA82XX(ha))
+                return QLA_SUCCESS;
+
         ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length;
 
         rval = qla2x00_mbx_reg_test(vha);
@@ -1183,6 +1187,12 @@ qla2x00_setup_chip(scsi_qla_host_t *vha)
         unsigned long flags;
         uint16_t fw_major_version;
 
+        if (IS_QLA82XX(ha)) {
+                rval = ha->isp_ops->load_risc(vha, &srisc_address);
+                if (rval == QLA_SUCCESS)
+                        goto enable_82xx_npiv;
+        }
+
         if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
                 /* Disable SRAM, Instruction RAM and GP RAM parity.  */
                 spin_lock_irqsave(&ha->hardware_lock, flags);
@@ -1208,6 +1218,7 @@ qla2x00_setup_chip(scsi_qla_host_t *vha)
                         rval = qla2x00_execute_fw(vha, srisc_address);
                         /* Retrieve firmware information. */
                         if (rval == QLA_SUCCESS) {
+enable_82xx_npiv:
                                 fw_major_version = ha->fw_major_version;
                                 rval = qla2x00_get_fw_version(vha,
                                     &ha->fw_major_version,
@@ -1232,8 +1243,10 @@ qla2x00_setup_chip(scsi_qla_host_t *vha)
                                     &ha->fw_xcb_count, NULL, NULL,
                                     &ha->max_npiv_vports, NULL);
 
-                                if (!fw_major_version && ql2xallocfwdump)
-                                        qla2x00_alloc_fw_dump(vha);
+                                if (!fw_major_version && ql2xallocfwdump) {
+                                        if (!IS_QLA82XX(ha))
+                                                qla2x00_alloc_fw_dump(vha);
+                                }
                         }
                 } else {
                         DEBUG2(printk(KERN_INFO
@@ -1390,6 +1403,9 @@ qla24xx_update_fw_options(scsi_qla_host_t *vha)
         int rval;
         struct qla_hw_data *ha = vha->hw;
 
+        if (IS_QLA82XX(ha))
+                return;
+
         /* Update Serial Link options. */
         if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
                 return;
@@ -1824,7 +1840,7 @@ qla2x00_configure_hba(scsi_qla_host_t *vha)
         return(rval);
 }
 
-static inline void
+inline void
 qla2x00_set_model_info(scsi_qla_host_t *vha, uint8_t *model, size_t len,
         char *def)
 {
@@ -1832,7 +1848,7 @@ qla2x00_set_model_info(scsi_qla_host_t *vha, uint8_t *model, size_t len,
         uint16_t index;
         struct qla_hw_data *ha = vha->hw;
         int use_tbl = !IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha) &&
-            !IS_QLA81XX(ha);
+            !IS_QLA8XXX_TYPE(ha);
 
         if (memcmp(model, BINZERO, len) != 0) {
                 strncpy(ha->model_number, model, len);
@@ -3552,6 +3568,45 @@ qla2x00_update_fcports(scsi_qla_host_t *base_vha)
                                 qla2x00_rport_del(fcport);
 }
 
+void
+qla2x00_abort_isp_cleanup(scsi_qla_host_t *vha)
+{
+        struct qla_hw_data *ha = vha->hw;
+        struct scsi_qla_host *vp, *base_vha = pci_get_drvdata(ha->pdev);
+        struct scsi_qla_host *tvp;
+
+        vha->flags.online = 0;
+        ha->flags.chip_reset_done = 0;
+        clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+        ha->qla_stats.total_isp_aborts++;
+
+        qla_printk(KERN_INFO, ha,
+            "Performing ISP error recovery - ha= %p.\n", ha);
+
+        /* Chip reset does not apply to 82XX */
+        if (!IS_QLA82XX(ha))
+                ha->isp_ops->reset_chip(vha);
+
+        atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
+        if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
+                atomic_set(&vha->loop_state, LOOP_DOWN);
+                qla2x00_mark_all_devices_lost(vha, 0);
+                list_for_each_entry_safe(vp, tvp, &base_vha->hw->vp_list, list)
+                        qla2x00_mark_all_devices_lost(vp, 0);
+        } else {
+                if (!atomic_read(&vha->loop_down_timer))
+                        atomic_set(&vha->loop_down_timer,
+                            LOOP_DOWN_TIME);
+        }
+
+        /* Make sure for ISP 82XX IO DMA is complete */
+        if (IS_QLA82XX(ha))
+                qla82xx_wait_for_pending_commands(vha);
+
+        /* Requeue all commands in outstanding command list. */
+        qla2x00_abort_all_cmds(vha, DID_RESET << 16);
+}
+
 /*
 *  qla2x00_abort_isp
 *      Resets ISP and aborts all outstanding commands.
@@ -3573,27 +3628,7 @@ qla2x00_abort_isp(scsi_qla_host_t *vha)
         struct req_que *req = ha->req_q_map[0];
 
         if (vha->flags.online) {
-                vha->flags.online = 0;
-                ha->flags.chip_reset_done = 0;
-                clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
-                ha->qla_stats.total_isp_aborts++;
-
-                qla_printk(KERN_INFO, ha,
-                    "Performing ISP error recovery - ha= %p.\n", ha);
-                ha->isp_ops->reset_chip(vha);
-
-                atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
-                if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
-                        atomic_set(&vha->loop_state, LOOP_DOWN);
-                        qla2x00_mark_all_devices_lost(vha, 0);
-                } else {
-                        if (!atomic_read(&vha->loop_down_timer))
-                                atomic_set(&vha->loop_down_timer,
-                                    LOOP_DOWN_TIME);
-                }
-
-                /* Requeue all commands in outstanding command list. */
-                qla2x00_abort_all_cmds(vha, DID_RESET << 16);
+                qla2x00_abort_isp_cleanup(vha);
 
                 if (unlikely(pci_channel_offline(ha->pdev) &&
                     ha->flags.pci_channel_io_perm_failure)) {
@@ -3849,6 +3884,9 @@ qla24xx_reset_adapter(scsi_qla_host_t *vha)
         struct qla_hw_data *ha = vha->hw;
         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 
+        if (IS_QLA82XX(ha))
+                return;
+
         vha->flags.online = 0;
         ha->isp_ops->disable_intrs(ha);
 
@@ -3912,6 +3950,8 @@ qla24xx_nvram_config(scsi_qla_host_t *vha)
         }
         ha->nvram_size = sizeof(struct nvram_24xx);
         ha->vpd_size = FA_NVRAM_VPD_SIZE;
+        if (IS_QLA82XX(ha))
+                ha->vpd_size = FA_VPD_SIZE_82XX;
 
         /* Get VPD data into cache */
         ha->vpd = ha->nvram + VPD_OFFSET;
@@ -4775,7 +4815,7 @@ qla81xx_nvram_config(scsi_qla_host_t *vha)
          * Setup driver NVRAM options.
          */
         qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
-            "QLE81XX");
+            "QLE8XXX");
 
         /* Use alternate WWN? */
         if (nv->host_p & __constant_cpu_to_le32(BIT_15)) {
@@ -4898,6 +4938,147 @@ qla81xx_nvram_config(scsi_qla_host_t *vha)
         return (rval);
 }
 
+int
+qla82xx_restart_isp(scsi_qla_host_t *vha)
+{
+        int status, rval;
+        uint32_t wait_time;
+        struct qla_hw_data *ha = vha->hw;
+        struct req_que *req = ha->req_q_map[0];
+        struct rsp_que *rsp = ha->rsp_q_map[0];
+        struct scsi_qla_host *vp;
+        struct scsi_qla_host *tvp;
+
+        status = qla2x00_init_rings(vha);
+        if (!status) {
+                clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
+                ha->flags.chip_reset_done = 1;
+
+                status = qla2x00_fw_ready(vha);
+                if (!status) {
+                        qla_printk(KERN_INFO, ha,
+                        "%s(): Start configure loop, "
+                        "status = %d\n", __func__, status);
+
+                        /* Issue a marker after FW becomes ready. */
+                        qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL);
+
+                        vha->flags.online = 1;
+                        /* Wait at most MAX_TARGET RSCNs for a stable link. */
+                        wait_time = 256;
+                        do {
+                                clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
+                                qla2x00_configure_loop(vha);
+                                wait_time--;
+                        } while (!atomic_read(&vha->loop_down_timer) &&
+                            !(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) &&
+                            wait_time &&
+                            (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)));
+                }
+
+                /* if no cable then assume it's good */
+                if ((vha->device_flags & DFLG_NO_CABLE))
+                        status = 0;
+
+                qla_printk(KERN_INFO, ha,
+                        "%s(): Configure loop done, status = 0x%x\n",
+                        __func__, status);
+        }
+
+        if (!status) {
+                clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
+
+                if (!atomic_read(&vha->loop_down_timer)) {
+                        /*
+                         * Issue marker command only when we are going
+                         * to start the I/O .
+                         */
+                        vha->marker_needed = 1;
+                }
+
+                vha->flags.online = 1;
+
+                ha->isp_ops->enable_intrs(ha);
+
+                ha->isp_abort_cnt = 0;
+                clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
+
+                if (ha->fce) {
+                        ha->flags.fce_enabled = 1;
+                        memset(ha->fce, 0,
+                            fce_calc_size(ha->fce_bufs));
+                        rval = qla2x00_enable_fce_trace(vha,
+                            ha->fce_dma, ha->fce_bufs, ha->fce_mb,
+                            &ha->fce_bufs);
+                        if (rval) {
+                                qla_printk(KERN_WARNING, ha,
+                                    "Unable to reinitialize FCE "
+                                    "(%d).\n", rval);
+                                ha->flags.fce_enabled = 0;
+                        }
+                }
+
+                if (ha->eft) {
+                        memset(ha->eft, 0, EFT_SIZE);
+                        rval = qla2x00_enable_eft_trace(vha,
+                            ha->eft_dma, EFT_NUM_BUFFERS);
+                        if (rval) {
+                                qla_printk(KERN_WARNING, ha,
+                                    "Unable to reinitialize EFT "
+                                    "(%d).\n", rval);
+                        }
+                }
+        } else {        /* failed the ISP abort */
+                vha->flags.online = 1;
+                if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
+                        if (ha->isp_abort_cnt == 0) {
+                                qla_printk(KERN_WARNING, ha,
+                                    "ISP error recovery failed - "
+                                    "board disabled\n");
+                                /*
+                                 * The next call disables the board
+                                 * completely.
+                                 */
+                                ha->isp_ops->reset_adapter(vha);
+                                vha->flags.online = 0;
+                                clear_bit(ISP_ABORT_RETRY,
+                                        &vha->dpc_flags);
+                                status = 0;
+                        } else { /* schedule another ISP abort */
+                                ha->isp_abort_cnt--;
+                                qla_printk(KERN_INFO, ha,
+                                        "qla%ld: ISP abort - "
+                                        "retry remaining %d\n",
+                                        vha->host_no, ha->isp_abort_cnt);
+                                status = 1;
+                        }
+                } else {
+                        ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
+                        qla_printk(KERN_INFO, ha,
+                                "(%ld): ISP error recovery "
+                                "- retrying (%d) more times\n",
+                                vha->host_no, ha->isp_abort_cnt);
+                        set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
+                        status = 1;
+                }
+        }
+
+        if (!status) {
+                DEBUG(printk(KERN_INFO
+                        "qla82xx_restart_isp(%ld): succeeded.\n",
+                        vha->host_no));
+                list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
+                        if (vp->vp_idx)
+                                qla2x00_vp_abort_isp(vp);
+                }
+        } else {
+                qla_printk(KERN_INFO, ha,
+                        "qla82xx_restart_isp: **** FAILED ****\n");
+        }
+
+        return status;
+}
+
 void
 qla81xx_update_fw_options(scsi_qla_host_t *vha)
 {