--- /dev/null
+/*
+ * QLogic Fibre Channel HBA Driver
+ * Copyright (c) 2003-2014 QLogic Corporation
+ *
+ * See LICENSE.qla2xxx for copyright and licensing details.
+ */
+#include "qla_def.h"
+#include "qla_target.h"
+
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <scsi/scsi_tcq.h>
+#include <scsi/scsi_bsg_fc.h>
+#include <scsi/scsi_eh.h>
+
+static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
+static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
+static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
+static void qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
+ sts_entry_t *);
+
+/**
+ * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
+ * @irq:
+ * @dev_id: SCSI driver HA context
+ *
+ * Called by system whenever the host adapter generates an interrupt.
+ *
+ * Returns handled flag.
+ */
+irqreturn_t
+qla2100_intr_handler(int irq, void *dev_id)
+{
+ scsi_qla_host_t *vha;
+ struct qla_hw_data *ha;
+ struct device_reg_2xxx __iomem *reg;
+ int status;
+ unsigned long iter;
+ uint16_t hccr;
+ uint16_t mb[4];
+ struct rsp_que *rsp;
+ unsigned long flags;
+
+ rsp = (struct rsp_que *) dev_id;
+ if (!rsp) {
+ ql_log(ql_log_info, NULL, 0x505d,
+ "%s: NULL response queue pointer.\n", __func__);
+ return (IRQ_NONE);
+ }
+
+ ha = rsp->hw;
+ reg = &ha->iobase->isp;
+ status = 0;
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ vha = pci_get_drvdata(ha->pdev);
+ for (iter = 50; iter--; ) {
+ hccr = RD_REG_WORD(®->hccr);
+ if (qla2x00_check_reg16_for_disconnect(vha, hccr))
+ break;
+ if (hccr & HCCR_RISC_PAUSE) {
+ if (pci_channel_offline(ha->pdev))
+ break;
+
+ /*
+ * Issue a "HARD" reset in order for the RISC interrupt
+ * bit to be cleared. Schedule a big hammer to get
+ * out of the RISC PAUSED state.
+ */
+ WRT_REG_WORD(®->hccr, HCCR_RESET_RISC);
+ RD_REG_WORD(®->hccr);
+
+ ha->isp_ops->fw_dump(vha, 1);
+ set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+ break;
+ } else if ((RD_REG_WORD(®->istatus) & ISR_RISC_INT) == 0)
+ break;
+
+ if (RD_REG_WORD(®->semaphore) & BIT_0) {
+ WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
+ RD_REG_WORD(®->hccr);
+
+ /* Get mailbox data. */
+ mb[0] = RD_MAILBOX_REG(ha, reg, 0);
+ if (mb[0] > 0x3fff && mb[0] < 0x8000) {
+ qla2x00_mbx_completion(vha, mb[0]);
+ status |= MBX_INTERRUPT;
+ } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
+ mb[1] = RD_MAILBOX_REG(ha, reg, 1);
+ mb[2] = RD_MAILBOX_REG(ha, reg, 2);
+ mb[3] = RD_MAILBOX_REG(ha, reg, 3);
+ qla2x00_async_event(vha, rsp, mb);
+ } else {
+ /*EMPTY*/
+ ql_dbg(ql_dbg_async, vha, 0x5025,
+ "Unrecognized interrupt type (%d).\n",
+ mb[0]);
+ }
+ /* Release mailbox registers. */
+ WRT_REG_WORD(®->semaphore, 0);
+ RD_REG_WORD(®->semaphore);
+ } else {
+ qla2x00_process_response_queue(rsp);
+
+ WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
+ RD_REG_WORD(®->hccr);
+ }
+ }
+ qla2x00_handle_mbx_completion(ha, status);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ return (IRQ_HANDLED);
+}
+
+bool
+qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
+{
+ /* Check for PCI disconnection */
+ if (reg == 0xffffffff) {
+ if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) &&
+ !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) &&
+ !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) {
+ /*
+ * Schedule this (only once) on the default system
+ * workqueue so that all the adapter workqueues and the
+ * DPC thread can be shutdown cleanly.
+ */
+ schedule_work(&vha->hw->board_disable);
+ }
+ return true;
+ } else
+ return false;
+}
+
+bool
+qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg)
+{
+ return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg);
+}
+
+/**
+ * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
+ * @irq:
+ * @dev_id: SCSI driver HA context
+ *
+ * Called by system whenever the host adapter generates an interrupt.
+ *
+ * Returns handled flag.
+ */
+irqreturn_t
+qla2300_intr_handler(int irq, void *dev_id)
+{
+ scsi_qla_host_t *vha;
+ struct device_reg_2xxx __iomem *reg;
+ int status;
+ unsigned long iter;
+ uint32_t stat;
+ uint16_t hccr;
+ uint16_t mb[4];
+ struct rsp_que *rsp;
+ struct qla_hw_data *ha;
+ unsigned long flags;
+
+ rsp = (struct rsp_que *) dev_id;
+ if (!rsp) {
+ ql_log(ql_log_info, NULL, 0x5058,
+ "%s: NULL response queue pointer.\n", __func__);
+ return (IRQ_NONE);
+ }
+
+ ha = rsp->hw;
+ reg = &ha->iobase->isp;
+ status = 0;
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ vha = pci_get_drvdata(ha->pdev);
+ for (iter = 50; iter--; ) {
+ stat = RD_REG_DWORD(®->u.isp2300.host_status);
+ if (qla2x00_check_reg32_for_disconnect(vha, stat))
+ break;
+ if (stat & HSR_RISC_PAUSED) {
+ if (unlikely(pci_channel_offline(ha->pdev)))
+ break;
+
+ hccr = RD_REG_WORD(®->hccr);
+
+ if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
+ ql_log(ql_log_warn, vha, 0x5026,
+ "Parity error -- HCCR=%x, Dumping "
+ "firmware.\n", hccr);
+ else
+ ql_log(ql_log_warn, vha, 0x5027,
+ "RISC paused -- HCCR=%x, Dumping "
+ "firmware.\n", hccr);
+
+ /*
+ * Issue a "HARD" reset in order for the RISC
+ * interrupt bit to be cleared. Schedule a big
+ * hammer to get out of the RISC PAUSED state.
+ */
+ WRT_REG_WORD(®->hccr, HCCR_RESET_RISC);
+ RD_REG_WORD(®->hccr);
+
+ ha->isp_ops->fw_dump(vha, 1);
+ set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+ break;
+ } else if ((stat & HSR_RISC_INT) == 0)
+ break;
+
+ switch (stat & 0xff) {
+ case 0x1:
+ case 0x2:
+ case 0x10:
+ case 0x11:
+ qla2x00_mbx_completion(vha, MSW(stat));
+ status |= MBX_INTERRUPT;
+
+ /* Release mailbox registers. */
+ WRT_REG_WORD(®->semaphore, 0);
+ break;
+ case 0x12:
+ mb[0] = MSW(stat);
+ mb[1] = RD_MAILBOX_REG(ha, reg, 1);
+ mb[2] = RD_MAILBOX_REG(ha, reg, 2);
+ mb[3] = RD_MAILBOX_REG(ha, reg, 3);
+ qla2x00_async_event(vha, rsp, mb);
+ break;
+ case 0x13:
+ qla2x00_process_response_queue(rsp);
+ break;
+ case 0x15:
+ mb[0] = MBA_CMPLT_1_16BIT;
+ mb[1] = MSW(stat);
+ qla2x00_async_event(vha, rsp, mb);
+ break;
+ case 0x16:
+ mb[0] = MBA_SCSI_COMPLETION;
+ mb[1] = MSW(stat);
+ mb[2] = RD_MAILBOX_REG(ha, reg, 2);
+ qla2x00_async_event(vha, rsp, mb);
+ break;
+ default:
+ ql_dbg(ql_dbg_async, vha, 0x5028,
+ "Unrecognized interrupt type (%d).\n", stat & 0xff);
+ break;
+ }
+ WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
+ RD_REG_WORD_RELAXED(®->hccr);
+ }
+ qla2x00_handle_mbx_completion(ha, status);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ return (IRQ_HANDLED);
+}
+
+/**
+ * qla2x00_mbx_completion() - Process mailbox command completions.
+ * @ha: SCSI driver HA context
+ * @mb0: Mailbox0 register
+ */
+static void
+qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
+{
+ uint16_t cnt;
+ uint32_t mboxes;
+ uint16_t __iomem *wptr;
+ struct qla_hw_data *ha = vha->hw;
+ struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
+
+ /* Read all mbox registers? */
+ mboxes = (1 << ha->mbx_count) - 1;
+ if (!ha->mcp)
+ ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
+ else
+ mboxes = ha->mcp->in_mb;
+
+ /* Load return mailbox registers. */
+ ha->flags.mbox_int = 1;
+ ha->mailbox_out[0] = mb0;
+ mboxes >>= 1;
+ wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
+
+ for (cnt = 1; cnt < ha->mbx_count; cnt++) {
+ if (IS_QLA2200(ha) && cnt == 8)
+ wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
+ if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
+ ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
+ else if (mboxes & BIT_0)
+ ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
+
+ wptr++;
+ mboxes >>= 1;
+ }
+}
+
+static void
+qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
+{
+ static char *event[] =
+ { "Complete", "Request Notification", "Time Extension" };
+ int rval;
+ struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
+ struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
+ uint16_t __iomem *wptr;
+ uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
+
+ /* Seed data -- mailbox1 -> mailbox7. */
+ if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
+ wptr = (uint16_t __iomem *)®24->mailbox1;
+ else if (IS_QLA8044(vha->hw))
+ wptr = (uint16_t __iomem *)®82->mailbox_out[1];
+ else
+ return;
+
+ for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
+ mb[cnt] = RD_REG_WORD(wptr);
+
+ ql_dbg(ql_dbg_async, vha, 0x5021,
+ "Inter-Driver Communication %s -- "
+ "%04x %04x %04x %04x %04x %04x %04x.\n",
+ event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
+ mb[4], mb[5], mb[6]);
+ switch (aen) {
+ /* Handle IDC Error completion case. */
+ case MBA_IDC_COMPLETE:
+ if (mb[1] >> 15) {
+ vha->hw->flags.idc_compl_status = 1;
+ if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
+ complete(&vha->hw->dcbx_comp);
+ }
+ break;
+
+ case MBA_IDC_NOTIFY:
+ /* Acknowledgement needed? [Notify && non-zero timeout]. */
+ timeout = (descr >> 8) & 0xf;
+ ql_dbg(ql_dbg_async, vha, 0x5022,
+ "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
+ vha->host_no, event[aen & 0xff], timeout);
+
+ if (!timeout)
+ return;
+ rval = qla2x00_post_idc_ack_work(vha, mb);
+ if (rval != QLA_SUCCESS)
+ ql_log(ql_log_warn, vha, 0x5023,
+ "IDC failed to post ACK.\n");
+ break;
+ case MBA_IDC_TIME_EXT:
+ vha->hw->idc_extend_tmo = descr;
+ ql_dbg(ql_dbg_async, vha, 0x5087,
+ "%lu Inter-Driver Communication %s -- "
+ "Extend timeout by=%d.\n",
+ vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
+ break;
+ }
+}
+
+#define LS_UNKNOWN 2
+const char *
+qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
+{
+ static const char *const link_speeds[] = {
+ "1", "2", "?", "4", "8", "16", "32", "10"
+ };
+#define QLA_LAST_SPEED 7
+
+ if (IS_QLA2100(ha) || IS_QLA2200(ha))
+ return link_speeds[0];
+ else if (speed == 0x13)
+ return link_speeds[QLA_LAST_SPEED];
+ else if (speed < QLA_LAST_SPEED)
+ return link_speeds[speed];
+ else
+ return link_speeds[LS_UNKNOWN];
+}
+
+static void
+qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
+{
+ struct qla_hw_data *ha = vha->hw;
+
+ /*
+ * 8200 AEN Interpretation:
+ * mb[0] = AEN code
+ * mb[1] = AEN Reason code
+ * mb[2] = LSW of Peg-Halt Status-1 Register
+ * mb[6] = MSW of Peg-Halt Status-1 Register
+ * mb[3] = LSW of Peg-Halt Status-2 register
+ * mb[7] = MSW of Peg-Halt Status-2 register
+ * mb[4] = IDC Device-State Register value
+ * mb[5] = IDC Driver-Presence Register value
+ */
+ ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
+ "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
+ mb[0], mb[1], mb[2], mb[6]);
+ ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
+ "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
+ "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
+
+ if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
+ IDC_HEARTBEAT_FAILURE)) {
+ ha->flags.nic_core_hung = 1;
+ ql_log(ql_log_warn, vha, 0x5060,
+ "83XX: F/W Error Reported: Check if reset required.\n");
+
+ if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
+ uint32_t protocol_engine_id, fw_err_code, err_level;
+
+ /*
+ * IDC_PEG_HALT_STATUS_CHANGE interpretation:
+ * - PEG-Halt Status-1 Register:
+ * (LSW = mb[2], MSW = mb[6])
+ * Bits 0-7 = protocol-engine ID
+ * Bits 8-28 = f/w error code
+ * Bits 29-31 = Error-level
+ * Error-level 0x1 = Non-Fatal error
+ * Error-level 0x2 = Recoverable Fatal error
+ * Error-level 0x4 = UnRecoverable Fatal error
+ * - PEG-Halt Status-2 Register:
+ * (LSW = mb[3], MSW = mb[7])
+ */
+ protocol_engine_id = (mb[2] & 0xff);
+ fw_err_code = (((mb[2] & 0xff00) >> 8) |
+ ((mb[6] & 0x1fff) << 8));
+ err_level = ((mb[6] & 0xe000) >> 13);
+ ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
+ "Register: protocol_engine_id=0x%x "
+ "fw_err_code=0x%x err_level=0x%x.\n",
+ protocol_engine_id, fw_err_code, err_level);
+ ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
+ "Register: 0x%x%x.\n", mb[7], mb[3]);
+ if (err_level == ERR_LEVEL_NON_FATAL) {
+ ql_log(ql_log_warn, vha, 0x5063,
+ "Not a fatal error, f/w has recovered "
+ "iteself.\n");
+ } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
+ ql_log(ql_log_fatal, vha, 0x5064,
+ "Recoverable Fatal error: Chip reset "
+ "required.\n");
+ qla83xx_schedule_work(vha,
+ QLA83XX_NIC_CORE_RESET);
+ } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
+ ql_log(ql_log_fatal, vha, 0x5065,
+ "Unrecoverable Fatal error: Set FAILED "
+ "state, reboot required.\n");
+ qla83xx_schedule_work(vha,
+ QLA83XX_NIC_CORE_UNRECOVERABLE);
+ }
+ }
+
+ if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
+ uint16_t peg_fw_state, nw_interface_link_up;
+ uint16_t nw_interface_signal_detect, sfp_status;
+ uint16_t htbt_counter, htbt_monitor_enable;
+ uint16_t sfp_additonal_info, sfp_multirate;
+ uint16_t sfp_tx_fault, link_speed, dcbx_status;
+
+ /*
+ * IDC_NIC_FW_REPORTED_FAILURE interpretation:
+ * - PEG-to-FC Status Register:
+ * (LSW = mb[2], MSW = mb[6])
+ * Bits 0-7 = Peg-Firmware state
+ * Bit 8 = N/W Interface Link-up
+ * Bit 9 = N/W Interface signal detected
+ * Bits 10-11 = SFP Status
+ * SFP Status 0x0 = SFP+ transceiver not expected
+ * SFP Status 0x1 = SFP+ transceiver not present
+ * SFP Status 0x2 = SFP+ transceiver invalid
+ * SFP Status 0x3 = SFP+ transceiver present and
+ * valid
+ * Bits 12-14 = Heartbeat Counter
+ * Bit 15 = Heartbeat Monitor Enable
+ * Bits 16-17 = SFP Additional Info
+ * SFP info 0x0 = Unregocnized transceiver for
+ * Ethernet
+ * SFP info 0x1 = SFP+ brand validation failed
+ * SFP info 0x2 = SFP+ speed validation failed
+ * SFP info 0x3 = SFP+ access error
+ * Bit 18 = SFP Multirate
+ * Bit 19 = SFP Tx Fault
+ * Bits 20-22 = Link Speed
+ * Bits 23-27 = Reserved
+ * Bits 28-30 = DCBX Status
+ * DCBX Status 0x0 = DCBX Disabled
+ * DCBX Status 0x1 = DCBX Enabled
+ * DCBX Status 0x2 = DCBX Exchange error
+ * Bit 31 = Reserved
+ */
+ peg_fw_state = (mb[2] & 0x00ff);
+ nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
+ nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
+ sfp_status = ((mb[2] & 0x0c00) >> 10);
+ htbt_counter = ((mb[2] & 0x7000) >> 12);
+ htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
+ sfp_additonal_info = (mb[6] & 0x0003);
+ sfp_multirate = ((mb[6] & 0x0004) >> 2);
+ sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
+ link_speed = ((mb[6] & 0x0070) >> 4);
+ dcbx_status = ((mb[6] & 0x7000) >> 12);
+
+ ql_log(ql_log_warn, vha, 0x5066,
+ "Peg-to-Fc Status Register:\n"
+ "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
+ "nw_interface_signal_detect=0x%x"
+ "\nsfp_statis=0x%x.\n ", peg_fw_state,
+ nw_interface_link_up, nw_interface_signal_detect,
+ sfp_status);
+ ql_log(ql_log_warn, vha, 0x5067,
+ "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
+ "sfp_additonal_info=0x%x, sfp_multirate=0x%x.\n ",
+ htbt_counter, htbt_monitor_enable,
+ sfp_additonal_info, sfp_multirate);
+ ql_log(ql_log_warn, vha, 0x5068,
+ "sfp_tx_fault=0x%x, link_state=0x%x, "
+ "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
+ dcbx_status);
+
+ qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
+ }
+
+ if (mb[1] & IDC_HEARTBEAT_FAILURE) {
+ ql_log(ql_log_warn, vha, 0x5069,
+ "Heartbeat Failure encountered, chip reset "
+ "required.\n");
+
+ qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
+ }
+ }
+
+ if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
+ ql_log(ql_log_info, vha, 0x506a,
+ "IDC Device-State changed = 0x%x.\n", mb[4]);
+ if (ha->flags.nic_core_reset_owner)
+ return;
+ qla83xx_schedule_work(vha, MBA_IDC_AEN);
+ }
+}
+
+int
+qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
+{
+ struct qla_hw_data *ha = vha->hw;
+ scsi_qla_host_t *vp;
+ uint32_t vp_did;
+ unsigned long flags;
+ int ret = 0;
+
+ if (!ha->num_vhosts)
+ return ret;
+
+ spin_lock_irqsave(&ha->vport_slock, flags);
+ list_for_each_entry(vp, &ha->vp_list, list) {
+ vp_did = vp->d_id.b24;
+ if (vp_did == rscn_entry) {
+ ret = 1;
+ break;
+ }
+ }
+ spin_unlock_irqrestore(&ha->vport_slock, flags);
+
+ return ret;
+}
+
+/**
+ * qla2x00_async_event() - Process aynchronous events.
+ * @ha: SCSI driver HA context
+ * @mb: Mailbox registers (0 - 3)
+ */
+void
+qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
+{
+ uint16_t handle_cnt;
+ uint16_t cnt, mbx;
+ uint32_t handles[5];
+ struct qla_hw_data *ha = vha->hw;
+ struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
+ struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
+ struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
+ uint32_t rscn_entry, host_pid, tmp_pid;
+ unsigned long flags;
+ fc_port_t *fcport = NULL;
+
+ /* Setup to process RIO completion. */
+ handle_cnt = 0;
+ if (IS_CNA_CAPABLE(ha))
+ goto skip_rio;
+ switch (mb[0]) {
+ case MBA_SCSI_COMPLETION:
+ handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
+ handle_cnt = 1;
+ break;
+ case MBA_CMPLT_1_16BIT:
+ handles[0] = mb[1];
+ handle_cnt = 1;
+ mb[0] = MBA_SCSI_COMPLETION;
+ break;
+ case MBA_CMPLT_2_16BIT:
+ handles[0] = mb[1];
+ handles[1] = mb[2];
+ handle_cnt = 2;
+ mb[0] = MBA_SCSI_COMPLETION;
+ break;
+ case MBA_CMPLT_3_16BIT:
+ handles[0] = mb[1];
+ handles[1] = mb[2];
+ handles[2] = mb[3];
+ handle_cnt = 3;
+ mb[0] = MBA_SCSI_COMPLETION;
+ break;
+ case MBA_CMPLT_4_16BIT:
+ handles[0] = mb[1];
+ handles[1] = mb[2];
+ handles[2] = mb[3];
+ handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
+ handle_cnt = 4;
+ mb[0] = MBA_SCSI_COMPLETION;
+ break;
+ case MBA_CMPLT_5_16BIT:
+ handles[0] = mb[1];
+ handles[1] = mb[2];
+ handles[2] = mb[3];
+ handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
+ handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
+ handle_cnt = 5;
+ mb[0] = MBA_SCSI_COMPLETION;
+ break;
+ case MBA_CMPLT_2_32BIT:
+ handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
+ handles[1] = le32_to_cpu(
+ ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
+ RD_MAILBOX_REG(ha, reg, 6));
+ handle_cnt = 2;
+ mb[0] = MBA_SCSI_COMPLETION;
+ break;
+ default:
+ break;
+ }
+skip_rio:
+ switch (mb[0]) {
+ case MBA_SCSI_COMPLETION: /* Fast Post */
+ if (!vha->flags.online)
+ break;
+
+ for (cnt = 0; cnt < handle_cnt; cnt++)
+ qla2x00_process_completed_request(vha, rsp->req,
+ handles[cnt]);
+ break;
+
+ case MBA_RESET: /* Reset */
+ ql_dbg(ql_dbg_async, vha, 0x5002,
+ "Asynchronous RESET.\n");
+
+ set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
+ break;
+
+ case MBA_SYSTEM_ERR: /* System Error */
+ mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha)) ?
+ RD_REG_WORD(®24->mailbox7) : 0;
+ ql_log(ql_log_warn, vha, 0x5003,
+ "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
+ "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
+
+ ha->isp_ops->fw_dump(vha, 1);
+
+ if (IS_FWI2_CAPABLE(ha)) {
+ if (mb[1] == 0 && mb[2] == 0) {
+ ql_log(ql_log_fatal, vha, 0x5004,
+ "Unrecoverable Hardware Error: adapter "
+ "marked OFFLINE!\n");
+ vha->flags.online = 0;
+ vha->device_flags |= DFLG_DEV_FAILED;
+ } else {
+ /* Check to see if MPI timeout occurred */
+ if ((mbx & MBX_3) && (ha->port_no == 0))
+ set_bit(MPI_RESET_NEEDED,
+ &vha->dpc_flags);
+
+ set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+ }
+ } else if (mb[1] == 0) {
+ ql_log(ql_log_fatal, vha, 0x5005,
+ "Unrecoverable Hardware Error: adapter marked "
+ "OFFLINE!\n");
+ vha->flags.online = 0;
+ vha->device_flags |= DFLG_DEV_FAILED;
+ } else
+ set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+ break;
+
+ case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
+ ql_log(ql_log_warn, vha, 0x5006,
+ "ISP Request Transfer Error (%x).\n", mb[1]);
+
+ set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+ break;
+
+ case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
+ ql_log(ql_log_warn, vha, 0x5007,
+ "ISP Response Transfer Error.\n");
+
+ set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+ break;
+
+ case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
+ ql_dbg(ql_dbg_async, vha, 0x5008,
+ "Asynchronous WAKEUP_THRES.\n");
+
+ break;
+ case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
+ ql_dbg(ql_dbg_async, vha, 0x5009,
+ "LIP occurred (%x).\n", mb[1]);
+
+ if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
+ atomic_set(&vha->loop_state, LOOP_DOWN);
+ atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
+ qla2x00_mark_all_devices_lost(vha, 1);
+ }
+
+ if (vha->vp_idx) {
+ atomic_set(&vha->vp_state, VP_FAILED);
+ fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
+ }
+
+ set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
+ set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
+
+ vha->flags.management_server_logged_in = 0;
+ qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
+ break;
+
+ case MBA_LOOP_UP: /* Loop Up Event */
+ if (IS_QLA2100(ha) || IS_QLA2200(ha))
+ ha->link_data_rate = PORT_SPEED_1GB;
+ else
+ ha->link_data_rate = mb[1];
+
+ ql_log(ql_log_info, vha, 0x500a,
+ "LOOP UP detected (%s Gbps).\n",
+ qla2x00_get_link_speed_str(ha, ha->link_data_rate));
+
+ vha->flags.management_server_logged_in = 0;
+ qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
+ break;
+
+ case MBA_LOOP_DOWN: /* Loop Down Event */
+ mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
+ ? RD_REG_WORD(®24->mailbox4) : 0;
+ mbx = (IS_P3P_TYPE(ha)) ? RD_REG_WORD(®82->mailbox_out[4])
+ : mbx;
+ ql_log(ql_log_info, vha, 0x500b,
+ "LOOP DOWN detected (%x %x %x %x).\n",
+ mb[1], mb[2], mb[3], mbx);
+
+ if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
+ atomic_set(&vha->loop_state, LOOP_DOWN);
+ atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
+ /*
+ * In case of loop down, restore WWPN from
+ * NVRAM in case of FA-WWPN capable ISP
+ * Restore for Physical Port only
+ */
+ if (!vha->vp_idx) {
+ if (ha->flags.fawwpn_enabled) {
+ void *wwpn = ha->init_cb->port_name;
+ memcpy(vha->port_name, wwpn, WWN_SIZE);
+ fc_host_port_name(vha->host) =
+ wwn_to_u64(vha->port_name);
+ ql_dbg(ql_dbg_init + ql_dbg_verbose,
+ vha, 0x0144, "LOOP DOWN detected,"
+ "restore WWPN %016llx\n",
+ wwn_to_u64(vha->port_name));
+ }
+
+ clear_bit(VP_CONFIG_OK, &vha->vp_flags);
+ }
+
+ vha->device_flags |= DFLG_NO_CABLE;
+ qla2x00_mark_all_devices_lost(vha, 1);
+ }
+
+ if (vha->vp_idx) {
+ atomic_set(&vha->vp_state, VP_FAILED);
+ fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
+ }
+
+ vha->flags.management_server_logged_in = 0;
+ ha->link_data_rate = PORT_SPEED_UNKNOWN;
+ qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
+ break;
+
+ case MBA_LIP_RESET: /* LIP reset occurred */
+ ql_dbg(ql_dbg_async, vha, 0x500c,
+ "LIP reset occurred (%x).\n", mb[1]);
+
+ if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
+ atomic_set(&vha->loop_state, LOOP_DOWN);
+ atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
+ qla2x00_mark_all_devices_lost(vha, 1);
+ }
+
+ if (vha->vp_idx) {
+ atomic_set(&vha->vp_state, VP_FAILED);
+ fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
+ }
+
+ set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
+
+ ha->operating_mode = LOOP;
+ vha->flags.management_server_logged_in = 0;
+ qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
+ break;
+
+ /* case MBA_DCBX_COMPLETE: */
+ case MBA_POINT_TO_POINT: /* Point-to-Point */
+ if (IS_QLA2100(ha))
+ break;
+
+ if (IS_CNA_CAPABLE(ha)) {
+ ql_dbg(ql_dbg_async, vha, 0x500d,
+ "DCBX Completed -- %04x %04x %04x.\n",
+ mb[1], mb[2], mb[3]);
+ if (ha->notify_dcbx_comp && !vha->vp_idx)
+ complete(&ha->dcbx_comp);
+
+ } else
+ ql_dbg(ql_dbg_async, vha, 0x500e,
+ "Asynchronous P2P MODE received.\n");
+
+ /*
+ * Until there's a transition from loop down to loop up, treat
+ * this as loop down only.
+ */
+ if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
+ atomic_set(&vha->loop_state, LOOP_DOWN);
+ if (!atomic_read(&vha->loop_down_timer))
+ atomic_set(&vha->loop_down_timer,
+ LOOP_DOWN_TIME);
+ qla2x00_mark_all_devices_lost(vha, 1);
+ }
+
+ if (vha->vp_idx) {
+ atomic_set(&vha->vp_state, VP_FAILED);
+ fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
+ }
+
+ if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
+ set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
+
+ set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
+ set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
+
+ ha->flags.gpsc_supported = 1;
+ vha->flags.management_server_logged_in = 0;
+ break;
+
+ case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
+ if (IS_QLA2100(ha))
+ break;
+
+ ql_dbg(ql_dbg_async, vha, 0x500f,
+ "Configuration change detected: value=%x.\n", mb[1]);
+
+ if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
+ atomic_set(&vha->loop_state, LOOP_DOWN);
+ if (!atomic_read(&vha->loop_down_timer))
+ atomic_set(&vha->loop_down_timer,
+ LOOP_DOWN_TIME);
+ qla2x00_mark_all_devices_lost(vha, 1);
+ }
+
+ if (vha->vp_idx) {
+ atomic_set(&vha->vp_state, VP_FAILED);
+ fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
+ }
+
+ set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
+ set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
+ break;
+
+ case MBA_PORT_UPDATE: /* Port database update */
+ /*
+ * Handle only global and vn-port update events
+ *
+ * Relevant inputs:
+ * mb[1] = N_Port handle of changed port
+ * OR 0xffff for global event
+ * mb[2] = New login state
+ * 7 = Port logged out
+ * mb[3] = LSB is vp_idx, 0xff = all vps
+ *
+ * Skip processing if:
+ * Event is global, vp_idx is NOT all vps,
+ * vp_idx does not match
+ * Event is not global, vp_idx does not match
+ */
+ if (IS_QLA2XXX_MIDTYPE(ha) &&
+ ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
+ (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
+ break;
+
+ /* Global event -- port logout or port unavailable. */
+ if (mb[1] == 0xffff && mb[2] == 0x7) {
+ ql_dbg(ql_dbg_async, vha, 0x5010,
+ "Port unavailable %04x %04x %04x.\n",
+ mb[1], mb[2], mb[3]);
+ ql_log(ql_log_warn, vha, 0x505e,
+ "Link is offline.\n");
+
+ if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
+ atomic_set(&vha->loop_state, LOOP_DOWN);
+ atomic_set(&vha->loop_down_timer,
+ LOOP_DOWN_TIME);
+ vha->device_flags |= DFLG_NO_CABLE;
+ qla2x00_mark_all_devices_lost(vha, 1);
+ }
+
+ if (vha->vp_idx) {
+ atomic_set(&vha->vp_state, VP_FAILED);
+ fc_vport_set_state(vha->fc_vport,
+ FC_VPORT_FAILED);
+ qla2x00_mark_all_devices_lost(vha, 1);
+ }
+
+ vha->flags.management_server_logged_in = 0;
+ ha->link_data_rate = PORT_SPEED_UNKNOWN;
+ break;
+ }
+
+ /*
+ * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
+ * event etc. earlier indicating loop is down) then process
+ * it. Otherwise ignore it and Wait for RSCN to come in.
+ */
+ atomic_set(&vha->loop_down_timer, 0);
+ if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
+ atomic_read(&vha->loop_state) != LOOP_DEAD) {
+ ql_dbg(ql_dbg_async, vha, 0x5011,
+ "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
+ mb[1], mb[2], mb[3]);
+
+ qlt_async_event(mb[0], vha, mb);
+ break;
+ }
+
+ ql_dbg(ql_dbg_async, vha, 0x5012,
+ "Port database changed %04x %04x %04x.\n",
+ mb[1], mb[2], mb[3]);
+
+ /*
+ * Mark all devices as missing so we will login again.
+ */
+ atomic_set(&vha->loop_state, LOOP_UP);
+
+ qla2x00_mark_all_devices_lost(vha, 1);
+
+ if (vha->vp_idx == 0 && !qla_ini_mode_enabled(vha))
+ set_bit(SCR_PENDING, &vha->dpc_flags);
+
+ set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
+ set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
+ set_bit(VP_CONFIG_OK, &vha->vp_flags);
+
+ qlt_async_event(mb[0], vha, mb);
+ break;
+
+ case MBA_RSCN_UPDATE: /* State Change Registration */
+ /* Check if the Vport has issued a SCR */
+ if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
+ break;
+ /* Only handle SCNs for our Vport index. */
+ if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
+ break;
+
+ ql_dbg(ql_dbg_async, vha, 0x5013,
+ "RSCN database changed -- %04x %04x %04x.\n",
+ mb[1], mb[2], mb[3]);
+
+ rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
+ host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
+ | vha->d_id.b.al_pa;
+ if (rscn_entry == host_pid) {
+ ql_dbg(ql_dbg_async, vha, 0x5014,
+ "Ignoring RSCN update to local host "
+ "port ID (%06x).\n", host_pid);
+ break;
+ }
+
+ /* Ignore reserved bits from RSCN-payload. */
+ rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
+
+ /* Skip RSCNs for virtual ports on the same physical port */
+ if (qla2x00_is_a_vp_did(vha, rscn_entry))
+ break;
+
+ /*
+ * Search for the rport related to this RSCN entry and mark it
+ * as lost.
+ */
+ list_for_each_entry(fcport, &vha->vp_fcports, list) {
+ if (atomic_read(&fcport->state) != FCS_ONLINE)
+ continue;
+ tmp_pid = fcport->d_id.b24;
+ if (fcport->d_id.b24 == rscn_entry) {
+ qla2x00_mark_device_lost(vha, fcport, 0, 0);
+ break;
+ }
+ }
+
+ atomic_set(&vha->loop_down_timer, 0);
+ vha->flags.management_server_logged_in = 0;
+
+ set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
+ set_bit(RSCN_UPDATE, &vha->dpc_flags);
+ qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
+ break;
+
+ /* case MBA_RIO_RESPONSE: */
+ case MBA_ZIO_RESPONSE:
+ ql_dbg(ql_dbg_async, vha, 0x5015,
+ "[R|Z]IO update completion.\n");
+
+ if (IS_FWI2_CAPABLE(ha))
+ qla24xx_process_response_queue(vha, rsp);
+ else
+ qla2x00_process_response_queue(rsp);
+ break;
+
+ case MBA_DISCARD_RND_FRAME:
+ ql_dbg(ql_dbg_async, vha, 0x5016,
+ "Discard RND Frame -- %04x %04x %04x.\n",
+ mb[1], mb[2], mb[3]);
+ break;
+
+ case MBA_TRACE_NOTIFICATION:
+ ql_dbg(ql_dbg_async, vha, 0x5017,
+ "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
+ break;
+
+ case MBA_ISP84XX_ALERT:
+ ql_dbg(ql_dbg_async, vha, 0x5018,
+ "ISP84XX Alert Notification -- %04x %04x %04x.\n",
+ mb[1], mb[2], mb[3]);
+
+ spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
+ switch (mb[1]) {
+ case A84_PANIC_RECOVERY:
+ ql_log(ql_log_info, vha, 0x5019,
+ "Alert 84XX: panic recovery %04x %04x.\n",
+ mb[2], mb[3]);
+ break;
+ case A84_OP_LOGIN_COMPLETE:
+ ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
+ ql_log(ql_log_info, vha, 0x501a,
+ "Alert 84XX: firmware version %x.\n",
+ ha->cs84xx->op_fw_version);
+ break;
+ case A84_DIAG_LOGIN_COMPLETE:
+ ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
+ ql_log(ql_log_info, vha, 0x501b,
+ "Alert 84XX: diagnostic firmware version %x.\n",
+ ha->cs84xx->diag_fw_version);
+ break;
+ case A84_GOLD_LOGIN_COMPLETE:
+ ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
+ ha->cs84xx->fw_update = 1;
+ ql_log(ql_log_info, vha, 0x501c,
+ "Alert 84XX: gold firmware version %x.\n",
+ ha->cs84xx->gold_fw_version);
+ break;
+ default:
+ ql_log(ql_log_warn, vha, 0x501d,
+ "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
+ mb[1], mb[2], mb[3]);
+ }
+ spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
+ break;
+ case MBA_DCBX_START:
+ ql_dbg(ql_dbg_async, vha, 0x501e,
+ "DCBX Started -- %04x %04x %04x.\n",
+ mb[1], mb[2], mb[3]);
+ break;
+ case MBA_DCBX_PARAM_UPDATE:
+ ql_dbg(ql_dbg_async, vha, 0x501f,
+ "DCBX Parameters Updated -- %04x %04x %04x.\n",
+ mb[1], mb[2], mb[3]);
+ break;
+ case MBA_FCF_CONF_ERR:
+ ql_dbg(ql_dbg_async, vha, 0x5020,
+ "FCF Configuration Error -- %04x %04x %04x.\n",
+ mb[1], mb[2], mb[3]);
+ break;
+ case MBA_IDC_NOTIFY:
+ if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
+ mb[4] = RD_REG_WORD(®24->mailbox4);
+ if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
+ (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
+ (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
+ set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
+ /*
+ * Extend loop down timer since port is active.
+ */
+ if (atomic_read(&vha->loop_state) == LOOP_DOWN)
+ atomic_set(&vha->loop_down_timer,
+ LOOP_DOWN_TIME);
+ qla2xxx_wake_dpc(vha);
+ }
+ }
+ case MBA_IDC_COMPLETE:
+ if (ha->notify_lb_portup_comp && !vha->vp_idx)
+ complete(&ha->lb_portup_comp);
+ /* Fallthru */
+ case MBA_IDC_TIME_EXT:
+ if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
+ IS_QLA8044(ha))
+ qla81xx_idc_event(vha, mb[0], mb[1]);
+ break;
+
+ case MBA_IDC_AEN:
+ mb[4] = RD_REG_WORD(®24->mailbox4);
+ mb[5] = RD_REG_WORD(®24->mailbox5);
+ mb[6] = RD_REG_WORD(®24->mailbox6);
+ mb[7] = RD_REG_WORD(®24->mailbox7);
+ qla83xx_handle_8200_aen(vha, mb);
+ break;
+
+ case MBA_DPORT_DIAGNOSTICS:
+ ql_dbg(ql_dbg_async, vha, 0x5052,
+ "D-Port Diagnostics: %04x %04x=%s\n", mb[0], mb[1],
+ mb[1] == 0 ? "start" :
+ mb[1] == 1 ? "done (ok)" :
+ mb[1] == 2 ? "done (error)" : "other");
+ break;
+
+ default:
+ ql_dbg(ql_dbg_async, vha, 0x5057,
+ "Unknown AEN:%04x %04x %04x %04x\n",
+ mb[0], mb[1], mb[2], mb[3]);
+ }
+
+ qlt_async_event(mb[0], vha, mb);
+
+ if (!vha->vp_idx && ha->num_vhosts)
+ qla2x00_alert_all_vps(rsp, mb);
+}
+
+/**
+ * qla2x00_process_completed_request() - Process a Fast Post response.
+ * @ha: SCSI driver HA context
+ * @index: SRB index
+ */
+void
+qla2x00_process_completed_request(struct scsi_qla_host *vha,
+ struct req_que *req, uint32_t index)
+{
+ srb_t *sp;
+ struct qla_hw_data *ha = vha->hw;
+
+ /* Validate handle. */
+ if (index >= req->num_outstanding_cmds) {
+ ql_log(ql_log_warn, vha, 0x3014,
+ "Invalid SCSI command index (%x).\n", index);
+
+ if (IS_P3P_TYPE(ha))
+ set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
+ else
+ set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+ return;
+ }
+
+ sp = req->outstanding_cmds[index];
+ if (sp) {
+ /* Free outstanding command slot. */
+ req->outstanding_cmds[index] = NULL;
+
+ /* Save ISP completion status */
+ sp->done(ha, sp, DID_OK << 16);
+ } else {
+ ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
+
+ if (IS_P3P_TYPE(ha))
+ set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
+ else
+ set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+ }
+}
+
+srb_t *
+qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
+ struct req_que *req, void *iocb)
+{
+ struct qla_hw_data *ha = vha->hw;
+ sts_entry_t *pkt = iocb;
+ srb_t *sp = NULL;
+ uint16_t index;
+
+ index = LSW(pkt->handle);
+ if (index >= req->num_outstanding_cmds) {
+ ql_log(ql_log_warn, vha, 0x5031,
+ "Invalid command index (%x).\n", index);
+ if (IS_P3P_TYPE(ha))
+ set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
+ else
+ set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+ goto done;
+ }
+ sp = req->outstanding_cmds[index];
+ if (!sp) {
+ ql_log(ql_log_warn, vha, 0x5032,
+ "Invalid completion handle (%x) -- timed-out.\n", index);
+ return sp;
+ }
+ if (sp->handle != index) {
+ ql_log(ql_log_warn, vha, 0x5033,
+ "SRB handle (%x) mismatch %x.\n", sp->handle, index);
+ return NULL;
+ }
+
+ req->outstanding_cmds[index] = NULL;
+
+done:
+ return sp;
+}
+
+static void
+qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
+ struct mbx_entry *mbx)
+{
+ const char func[] = "MBX-IOCB";
+ const char *type;
+ fc_port_t *fcport;
+ srb_t *sp;
+ struct srb_iocb *lio;
+ uint16_t *data;
+ uint16_t status;
+
+ sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
+ if (!sp)
+ return;
+
+ lio = &sp->u.iocb_cmd;
+ type = sp->name;
+ fcport = sp->fcport;
+ data = lio->u.logio.data;
+
+ data[0] = MBS_COMMAND_ERROR;
+ data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
+ QLA_LOGIO_LOGIN_RETRIED : 0;
+ if (mbx->entry_status) {
+ ql_dbg(ql_dbg_async, vha, 0x5043,
+ "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
+ "entry-status=%x status=%x state-flag=%x "
+ "status-flags=%x.\n", type, sp->handle,
+ fcport->d_id.b.domain, fcport->d_id.b.area,
+ fcport->d_id.b.al_pa, mbx->entry_status,
+ le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
+ le16_to_cpu(mbx->status_flags));
+
+ ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
+ (uint8_t *)mbx, sizeof(*mbx));
+
+ goto logio_done;
+ }
+
+ status = le16_to_cpu(mbx->status);
+ if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
+ le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
+ status = 0;
+ if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
+ ql_dbg(ql_dbg_async, vha, 0x5045,
+ "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
+ type, sp->handle, fcport->d_id.b.domain,
+ fcport->d_id.b.area, fcport->d_id.b.al_pa,
+ le16_to_cpu(mbx->mb1));
+
+ data[0] = MBS_COMMAND_COMPLETE;
+ if (sp->type == SRB_LOGIN_CMD) {
+ fcport->port_type = FCT_TARGET;
+ if (le16_to_cpu(mbx->mb1) & BIT_0)
+ fcport->port_type = FCT_INITIATOR;
+ else if (le16_to_cpu(mbx->mb1) & BIT_1)
+ fcport->flags |= FCF_FCP2_DEVICE;
+ }
+ goto logio_done;
+ }
+
+ data[0] = le16_to_cpu(mbx->mb0);
+ switch (data[0]) {
+ case MBS_PORT_ID_USED:
+ data[1] = le16_to_cpu(mbx->mb1);
+ break;
+ case MBS_LOOP_ID_USED:
+ break;
+ default:
+ data[0] = MBS_COMMAND_ERROR;
+ break;
+ }
+
+ ql_log(ql_log_warn, vha, 0x5046,
+ "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
+ "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
+ fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
+ status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
+ le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
+ le16_to_cpu(mbx->mb7));
+
+logio_done:
+ sp->done(vha, sp, 0);
+}
+
+static void
+qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
+ sts_entry_t *pkt, int iocb_type)
+{
+ const char func[] = "CT_IOCB";
+ const char *type;
+ srb_t *sp;
+ struct fc_bsg_job *bsg_job;
+ uint16_t comp_status;
+ int res;
+
+ sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
+ if (!sp)
+ return;
+
+ bsg_job = sp->u.bsg_job;
+
+ type = "ct pass-through";
+
+ comp_status = le16_to_cpu(pkt->comp_status);
+
+ /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
+ * fc payload to the caller
+ */
+ bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
+ bsg_job->reply_len = sizeof(struct fc_bsg_reply);
+
+ if (comp_status != CS_COMPLETE) {
+ if (comp_status == CS_DATA_UNDERRUN) {
+ res = DID_OK << 16;
+ bsg_job->reply->reply_payload_rcv_len =
+ le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
+
+ ql_log(ql_log_warn, vha, 0x5048,
+ "CT pass-through-%s error "
+ "comp_status-status=0x%x total_byte = 0x%x.\n",
+ type, comp_status,
+ bsg_job->reply->reply_payload_rcv_len);
+ } else {
+ ql_log(ql_log_warn, vha, 0x5049,
+ "CT pass-through-%s error "
+ "comp_status-status=0x%x.\n", type, comp_status);
+ res = DID_ERROR << 16;
+ bsg_job->reply->reply_payload_rcv_len = 0;
+ }
+ ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
+ (uint8_t *)pkt, sizeof(*pkt));
+ } else {
+ res = DID_OK << 16;
+ bsg_job->reply->reply_payload_rcv_len =
+ bsg_job->reply_payload.payload_len;
+ bsg_job->reply_len = 0;
+ }
+
+ sp->done(vha, sp, res);
+}
+
+static void
+qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
+ struct sts_entry_24xx *pkt, int iocb_type)
+{
+ const char func[] = "ELS_CT_IOCB";
+ const char *type;
+ srb_t *sp;
+ struct fc_bsg_job *bsg_job;
+ uint16_t comp_status;
+ uint32_t fw_status[3];
+ uint8_t* fw_sts_ptr;
+ int res;
+
+ sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
+ if (!sp)
+ return;
+ bsg_job = sp->u.bsg_job;
+
+ type = NULL;
+ switch (sp->type) {
+ case SRB_ELS_CMD_RPT:
+ case SRB_ELS_CMD_HST:
+ type = "els";
+ break;
+ case SRB_CT_CMD:
+ type = "ct pass-through";
+ break;
+ default:
+ ql_dbg(ql_dbg_user, vha, 0x503e,
+ "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
+ return;
+ }
+
+ comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
+ fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
+ fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
+
+ /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
+ * fc payload to the caller
+ */
+ bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
+ bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
+
+ if (comp_status != CS_COMPLETE) {
+ if (comp_status == CS_DATA_UNDERRUN) {
+ res = DID_OK << 16;
+ bsg_job->reply->reply_payload_rcv_len =
+ le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count);
+
+ ql_dbg(ql_dbg_user, vha, 0x503f,
+ "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
+ "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
+ type, sp->handle, comp_status, fw_status[1], fw_status[2],
+ le16_to_cpu(((struct els_sts_entry_24xx *)
+ pkt)->total_byte_count));
+ fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
+ memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
+ }
+ else {
+ ql_dbg(ql_dbg_user, vha, 0x5040,
+ "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
+ "error subcode 1=0x%x error subcode 2=0x%x.\n",
+ type, sp->handle, comp_status,
+ le16_to_cpu(((struct els_sts_entry_24xx *)
+ pkt)->error_subcode_1),
+ le16_to_cpu(((struct els_sts_entry_24xx *)
+ pkt)->error_subcode_2));
+ res = DID_ERROR << 16;
+ bsg_job->reply->reply_payload_rcv_len = 0;
+ fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
+ memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
+ }
+ ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
+ (uint8_t *)pkt, sizeof(*pkt));
+ }
+ else {
+ res = DID_OK << 16;
+ bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
+ bsg_job->reply_len = 0;
+ }
+
+ sp->done(vha, sp, res);
+}
+
+static void
+qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
+ struct logio_entry_24xx *logio)
+{
+ const char func[] = "LOGIO-IOCB";
+ const char *type;
+ fc_port_t *fcport;
+ srb_t *sp;
+ struct srb_iocb *lio;
+ uint16_t *data;
+ uint32_t iop[2];
+
+ sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
+ if (!sp)
+ return;
+
+ lio = &sp->u.iocb_cmd;
+ type = sp->name;
+ fcport = sp->fcport;
+ data = lio->u.logio.data;
+
+ data[0] = MBS_COMMAND_ERROR;
+ data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
+ QLA_LOGIO_LOGIN_RETRIED : 0;
+ if (logio->entry_status) {
+ ql_log(ql_log_warn, fcport->vha, 0x5034,
+ "Async-%s error entry - hdl=%x"
+ "portid=%02x%02x%02x entry-status=%x.\n",
+ type, sp->handle, fcport->d_id.b.domain,
+ fcport->d_id.b.area, fcport->d_id.b.al_pa,
+ logio->entry_status);
+ ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
+ (uint8_t *)logio, sizeof(*logio));
+
+ goto logio_done;
+ }
+
+ if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
+ ql_dbg(ql_dbg_async, fcport->vha, 0x5036,
+ "Async-%s complete - hdl=%x portid=%02x%02x%02x "
+ "iop0=%x.\n", type, sp->handle, fcport->d_id.b.domain,
+ fcport->d_id.b.area, fcport->d_id.b.al_pa,
+ le32_to_cpu(logio->io_parameter[0]));
+
+ data[0] = MBS_COMMAND_COMPLETE;
+ if (sp->type != SRB_LOGIN_CMD)
+ goto logio_done;
+
+ iop[0] = le32_to_cpu(logio->io_parameter[0]);
+ if (iop[0] & BIT_4) {
+ fcport->port_type = FCT_TARGET;
+ if (iop[0] & BIT_8)
+ fcport->flags |= FCF_FCP2_DEVICE;
+ } else if (iop[0] & BIT_5)
+ fcport->port_type = FCT_INITIATOR;
+
+ if (iop[0] & BIT_7)
+ fcport->flags |= FCF_CONF_COMP_SUPPORTED;
+
+ if (logio->io_parameter[7] || logio->io_parameter[8])
+ fcport->supported_classes |= FC_COS_CLASS2;
+ if (logio->io_parameter[9] || logio->io_parameter[10])
+ fcport->supported_classes |= FC_COS_CLASS3;
+
+ goto logio_done;
+ }
+
+ iop[0] = le32_to_cpu(logio->io_parameter[0]);
+ iop[1] = le32_to_cpu(logio->io_parameter[1]);
+ switch (iop[0]) {
+ case LSC_SCODE_PORTID_USED:
+ data[0] = MBS_PORT_ID_USED;
+ data[1] = LSW(iop[1]);
+ break;
+ case LSC_SCODE_NPORT_USED:
+ data[0] = MBS_LOOP_ID_USED;
+ break;
+ default:
+ data[0] = MBS_COMMAND_ERROR;
+ break;
+ }
+
+ ql_dbg(ql_dbg_async, fcport->vha, 0x5037,
+ "Async-%s failed - hdl=%x portid=%02x%02x%02x comp=%x "
+ "iop0=%x iop1=%x.\n", type, sp->handle, fcport->d_id.b.domain,
+ fcport->d_id.b.area, fcport->d_id.b.al_pa,
+ le16_to_cpu(logio->comp_status),
+ le32_to_cpu(logio->io_parameter[0]),
+ le32_to_cpu(logio->io_parameter[1]));
+
+logio_done:
+ sp->done(vha, sp, 0);
+}
+
+static void
+qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
+{
+ const char func[] = "TMF-IOCB";
+ const char *type;
+ fc_port_t *fcport;
+ srb_t *sp;
+ struct srb_iocb *iocb;
+ struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
+
+ sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
+ if (!sp)
+ return;
+
+ iocb = &sp->u.iocb_cmd;
+ type = sp->name;
+ fcport = sp->fcport;
+ iocb->u.tmf.data = QLA_SUCCESS;
+
+ if (sts->entry_status) {
+ ql_log(ql_log_warn, fcport->vha, 0x5038,
+ "Async-%s error - hdl=%x entry-status(%x).\n",
+ type, sp->handle, sts->entry_status);
+ iocb->u.tmf.data = QLA_FUNCTION_FAILED;
+ } else if (sts->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) {
+ ql_log(ql_log_warn, fcport->vha, 0x5039,
+ "Async-%s error - hdl=%x completion status(%x).\n",
+ type, sp->handle, sts->comp_status);
+ iocb->u.tmf.data = QLA_FUNCTION_FAILED;
+ } else if ((le16_to_cpu(sts->scsi_status) &
+ SS_RESPONSE_INFO_LEN_VALID)) {
+ if (le32_to_cpu(sts->rsp_data_len) < 4) {
+ ql_log(ql_log_warn, fcport->vha, 0x503b,
+ "Async-%s error - hdl=%x not enough response(%d).\n",
+ type, sp->handle, sts->rsp_data_len);
+ } else if (sts->data[3]) {
+ ql_log(ql_log_warn, fcport->vha, 0x503c,
+ "Async-%s error - hdl=%x response(%x).\n",
+ type, sp->handle, sts->data[3]);
+ iocb->u.tmf.data = QLA_FUNCTION_FAILED;
+ }
+ }
+
+ if (iocb->u.tmf.data != QLA_SUCCESS)
+ ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055,
+ (uint8_t *)sts, sizeof(*sts));
+
+ sp->done(vha, sp, 0);
+}
+
+/**
+ * qla2x00_process_response_queue() - Process response queue entries.
+ * @ha: SCSI driver HA context
+ */
+void
+qla2x00_process_response_queue(struct rsp_que *rsp)
+{
+ struct scsi_qla_host *vha;
+ struct qla_hw_data *ha = rsp->hw;
+ struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
+ sts_entry_t *pkt;
+ uint16_t handle_cnt;
+ uint16_t cnt;
+
+ vha = pci_get_drvdata(ha->pdev);
+
+ if (!vha->flags.online)
+ return;
+
+ while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
+ pkt = (sts_entry_t *)rsp->ring_ptr;
+
+ rsp->ring_index++;
+ if (rsp->ring_index == rsp->length) {
+ rsp->ring_index = 0;
+ rsp->ring_ptr = rsp->ring;
+ } else {
+ rsp->ring_ptr++;
+ }
+
+ if (pkt->entry_status != 0) {
+ qla2x00_error_entry(vha, rsp, pkt);
+ ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
+ wmb();
+ continue;
+ }
+
+ switch (pkt->entry_type) {
+ case STATUS_TYPE:
+ qla2x00_status_entry(vha, rsp, pkt);
+ break;
+ case STATUS_TYPE_21:
+ handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
+ for (cnt = 0; cnt < handle_cnt; cnt++) {
+ qla2x00_process_completed_request(vha, rsp->req,
+ ((sts21_entry_t *)pkt)->handle[cnt]);
+ }
+ break;
+ case STATUS_TYPE_22:
+ handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
+ for (cnt = 0; cnt < handle_cnt; cnt++) {
+ qla2x00_process_completed_request(vha, rsp->req,
+ ((sts22_entry_t *)pkt)->handle[cnt]);
+ }
+ break;
+ case STATUS_CONT_TYPE:
+ qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
+ break;
+ case MBX_IOCB_TYPE:
+ qla2x00_mbx_iocb_entry(vha, rsp->req,
+ (struct mbx_entry *)pkt);
+ break;
+ case CT_IOCB_TYPE:
+ qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
+ break;
+ default:
+ /* Type Not Supported. */
+ ql_log(ql_log_warn, vha, 0x504a,
+ "Received unknown response pkt type %x "
+ "entry status=%x.\n",
+ pkt->entry_type, pkt->entry_status);
+ break;
+ }
+ ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
+ wmb();
+ }
+
+ /* Adjust ring index */
+ WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
+}
+
+static inline void
+qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
+ uint32_t sense_len, struct rsp_que *rsp, int res)
+{
+ struct scsi_qla_host *vha = sp->fcport->vha;
+ struct scsi_cmnd *cp = GET_CMD_SP(sp);
+ uint32_t track_sense_len;
+
+ if (sense_len >= SCSI_SENSE_BUFFERSIZE)
+ sense_len = SCSI_SENSE_BUFFERSIZE;
+
+ SET_CMD_SENSE_LEN(sp, sense_len);
+ SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
+ track_sense_len = sense_len;
+
+ if (sense_len > par_sense_len)
+ sense_len = par_sense_len;
+
+ memcpy(cp->sense_buffer, sense_data, sense_len);
+
+ SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
+ track_sense_len -= sense_len;
+ SET_CMD_SENSE_LEN(sp, track_sense_len);
+
+ if (track_sense_len != 0) {
+ rsp->status_srb = sp;
+ cp->result = res;
+ }
+
+ if (sense_len) {
+ ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
+ "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
+ sp->fcport->vha->host_no, cp->device->id, cp->device->lun,
+ cp);
+ ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
+ cp->sense_buffer, sense_len);
+ }
+}
+
+struct scsi_dif_tuple {
+ __be16 guard; /* Checksum */
+ __be16 app_tag; /* APPL identifier */
+ __be32 ref_tag; /* Target LBA or indirect LBA */
+};
+
+/*
+ * Checks the guard or meta-data for the type of error
+ * detected by the HBA. In case of errors, we set the
+ * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
+ * to indicate to the kernel that the HBA detected error.
+ */
+static inline int
+qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
+{
+ struct scsi_qla_host *vha = sp->fcport->vha;
+ struct scsi_cmnd *cmd = GET_CMD_SP(sp);
+ uint8_t *ap = &sts24->data[12];
+ uint8_t *ep = &sts24->data[20];
+ uint32_t e_ref_tag, a_ref_tag;
+ uint16_t e_app_tag, a_app_tag;
+ uint16_t e_guard, a_guard;
+
+ /*
+ * swab32 of the "data" field in the beginning of qla2x00_status_entry()
+ * would make guard field appear at offset 2
+ */
+ a_guard = le16_to_cpu(*(uint16_t *)(ap + 2));
+ a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0));
+ a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4));
+ e_guard = le16_to_cpu(*(uint16_t *)(ep + 2));
+ e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0));
+ e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4));
+
+ ql_dbg(ql_dbg_io, vha, 0x3023,
+ "iocb(s) %p Returned STATUS.\n", sts24);
+
+ ql_dbg(ql_dbg_io, vha, 0x3024,
+ "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
+ " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
+ " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
+ cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
+ a_app_tag, e_app_tag, a_guard, e_guard);
+
+ /*
+ * Ignore sector if:
+ * For type 3: ref & app tag is all 'f's
+ * For type 0,1,2: app tag is all 'f's
+ */
+ if ((a_app_tag == 0xffff) &&
+ ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
+ (a_ref_tag == 0xffffffff))) {
+ uint32_t blocks_done, resid;
+ sector_t lba_s = scsi_get_lba(cmd);
+
+ /* 2TB boundary case covered automatically with this */
+ blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
+
+ resid = scsi_bufflen(cmd) - (blocks_done *
+ cmd->device->sector_size);
+
+ scsi_set_resid(cmd, resid);
+ cmd->result = DID_OK << 16;
+
+ /* Update protection tag */
+ if (scsi_prot_sg_count(cmd)) {
+ uint32_t i, j = 0, k = 0, num_ent;
+ struct scatterlist *sg;
+ struct sd_dif_tuple *spt;
+
+ /* Patch the corresponding protection tags */
+ scsi_for_each_prot_sg(cmd, sg,
+ scsi_prot_sg_count(cmd), i) {
+ num_ent = sg_dma_len(sg) / 8;
+ if (k + num_ent < blocks_done) {
+ k += num_ent;
+ continue;
+ }
+ j = blocks_done - k - 1;
+ k = blocks_done;
+ break;
+ }
+
+ if (k != blocks_done) {
+ ql_log(ql_log_warn, vha, 0x302f,
+ "unexpected tag values tag:lba=%x:%llx)\n",
+ e_ref_tag, (unsigned long long)lba_s);
+ return 1;
+ }
+
+ spt = page_address(sg_page(sg)) + sg->offset;
+ spt += j;
+
+ spt->app_tag = 0xffff;
+ if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
+ spt->ref_tag = 0xffffffff;
+ }
+
+ return 0;
+ }
+
+ /* check guard */
+ if (e_guard != a_guard) {
+ scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
+ 0x10, 0x1);
+ set_driver_byte(cmd, DRIVER_SENSE);
+ set_host_byte(cmd, DID_ABORT);
+ cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
+ return 1;
+ }
+
+ /* check ref tag */
+ if (e_ref_tag != a_ref_tag) {
+ scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
+ 0x10, 0x3);
+ set_driver_byte(cmd, DRIVER_SENSE);
+ set_host_byte(cmd, DID_ABORT);
+ cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
+ return 1;
+ }
+
+ /* check appl tag */
+ if (e_app_tag != a_app_tag) {
+ scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
+ 0x10, 0x2);
+ set_driver_byte(cmd, DRIVER_SENSE);
+ set_host_byte(cmd, DID_ABORT);
+ cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
+ return 1;
+ }
+
+ return 1;
+}
+
+static void
+qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
+ struct req_que *req, uint32_t index)
+{
+ struct qla_hw_data *ha = vha->hw;
+ srb_t *sp;
+ uint16_t comp_status;
+ uint16_t scsi_status;
+ uint16_t thread_id;
+ uint32_t rval = EXT_STATUS_OK;
+ struct fc_bsg_job *bsg_job = NULL;
+ sts_entry_t *sts;
+ struct sts_entry_24xx *sts24;
+ sts = (sts_entry_t *) pkt;
+ sts24 = (struct sts_entry_24xx *) pkt;
+
+ /* Validate handle. */
+ if (index >= req->num_outstanding_cmds) {
+ ql_log(ql_log_warn, vha, 0x70af,
+ "Invalid SCSI completion handle 0x%x.\n", index);
+ set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+ return;
+ }
+
+ sp = req->outstanding_cmds[index];
+ if (sp) {
+ /* Free outstanding command slot. */
+ req->outstanding_cmds[index] = NULL;
+ bsg_job = sp->u.bsg_job;
+ } else {
+ ql_log(ql_log_warn, vha, 0x70b0,
+ "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
+ req->id, index);
+
+ set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+ return;
+ }
+
+ if (IS_FWI2_CAPABLE(ha)) {
+ comp_status = le16_to_cpu(sts24->comp_status);
+ scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
+ } else {
+ comp_status = le16_to_cpu(sts->comp_status);
+ scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
+ }
+
+ thread_id = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
+ switch (comp_status) {
+ case CS_COMPLETE:
+ if (scsi_status == 0) {
+ bsg_job->reply->reply_payload_rcv_len =
+ bsg_job->reply_payload.payload_len;
+ vha->qla_stats.input_bytes +=
+ bsg_job->reply->reply_payload_rcv_len;
+ vha->qla_stats.input_requests++;
+ rval = EXT_STATUS_OK;
+ }
+ goto done;
+
+ case CS_DATA_OVERRUN:
+ ql_dbg(ql_dbg_user, vha, 0x70b1,
+ "Command completed with date overrun thread_id=%d\n",
+ thread_id);
+ rval = EXT_STATUS_DATA_OVERRUN;
+ break;
+
+ case CS_DATA_UNDERRUN:
+ ql_dbg(ql_dbg_user, vha, 0x70b2,
+ "Command completed with date underrun thread_id=%d\n",
+ thread_id);
+ rval = EXT_STATUS_DATA_UNDERRUN;
+ break;
+ case CS_BIDIR_RD_OVERRUN:
+ ql_dbg(ql_dbg_user, vha, 0x70b3,
+ "Command completed with read data overrun thread_id=%d\n",
+ thread_id);
+ rval = EXT_STATUS_DATA_OVERRUN;
+ break;
+
+ case CS_BIDIR_RD_WR_OVERRUN:
+ ql_dbg(ql_dbg_user, vha, 0x70b4,
+ "Command completed with read and write data overrun "
+ "thread_id=%d\n", thread_id);
+ rval = EXT_STATUS_DATA_OVERRUN;
+ break;
+
+ case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
+ ql_dbg(ql_dbg_user, vha, 0x70b5,
+ "Command completed with read data over and write data "
+ "underrun thread_id=%d\n", thread_id);
+ rval = EXT_STATUS_DATA_OVERRUN;
+ break;
+
+ case CS_BIDIR_RD_UNDERRUN:
+ ql_dbg(ql_dbg_user, vha, 0x70b6,
+ "Command completed with read data data underrun "
+ "thread_id=%d\n", thread_id);
+ rval = EXT_STATUS_DATA_UNDERRUN;
+ break;
+
+ case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
+ ql_dbg(ql_dbg_user, vha, 0x70b7,
+ "Command completed with read data under and write data "
+ "overrun thread_id=%d\n", thread_id);
+ rval = EXT_STATUS_DATA_UNDERRUN;
+ break;
+
+ case CS_BIDIR_RD_WR_UNDERRUN:
+ ql_dbg(ql_dbg_user, vha, 0x70b8,
+ "Command completed with read and write data underrun "
+ "thread_id=%d\n", thread_id);
+ rval = EXT_STATUS_DATA_UNDERRUN;
+ break;
+
+ case CS_BIDIR_DMA:
+ ql_dbg(ql_dbg_user, vha, 0x70b9,
+ "Command completed with data DMA error thread_id=%d\n",
+ thread_id);
+ rval = EXT_STATUS_DMA_ERR;
+ break;
+
+ case CS_TIMEOUT:
+ ql_dbg(ql_dbg_user, vha, 0x70ba,
+ "Command completed with timeout thread_id=%d\n",
+ thread_id);
+ rval = EXT_STATUS_TIMEOUT;
+ break;
+ default:
+ ql_dbg(ql_dbg_user, vha, 0x70bb,
+ "Command completed with completion status=0x%x "
+ "thread_id=%d\n", comp_status, thread_id);
+ rval = EXT_STATUS_ERR;
+ break;
+ }
+ bsg_job->reply->reply_payload_rcv_len = 0;
+
+done:
+ /* Return the vendor specific reply to API */
+ bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
+ bsg_job->reply_len = sizeof(struct fc_bsg_reply);
+ /* Always return DID_OK, bsg will send the vendor specific response
+ * in this case only */
+ sp->done(vha, sp, (DID_OK << 6));
+
+}
+
+/**
+ * qla2x00_status_entry() - Process a Status IOCB entry.
+ * @ha: SCSI driver HA context
+ * @pkt: Entry pointer
+ */
+static void
+qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
+{
+ srb_t *sp;
+ fc_port_t *fcport;
+ struct scsi_cmnd *cp;
+ sts_entry_t *sts;
+ struct sts_entry_24xx *sts24;
+ uint16_t comp_status;
+ uint16_t scsi_status;
+ uint16_t ox_id;
+ uint8_t lscsi_status;
+ int32_t resid;
+ uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
+ fw_resid_len;
+ uint8_t *rsp_info, *sense_data;
+ struct qla_hw_data *ha = vha->hw;
+ uint32_t handle;
+ uint16_t que;
+ struct req_que *req;
+ int logit = 1;
+ int res = 0;
+ uint16_t state_flags = 0;
+ uint16_t retry_delay = 0;
+
+ sts = (sts_entry_t *) pkt;
+ sts24 = (struct sts_entry_24xx *) pkt;
+ if (IS_FWI2_CAPABLE(ha)) {
+ comp_status = le16_to_cpu(sts24->comp_status);
+ scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
+ state_flags = le16_to_cpu(sts24->state_flags);
+ } else {
+ comp_status = le16_to_cpu(sts->comp_status);
+ scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
+ }
+ handle = (uint32_t) LSW(sts->handle);
+ que = MSW(sts->handle);
+ req = ha->req_q_map[que];
+
+ /* Check for invalid queue pointer */
+ if (req == NULL ||
+ que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
+ ql_dbg(ql_dbg_io, vha, 0x3059,
+ "Invalid status handle (0x%x): Bad req pointer. req=%p, "
+ "que=%u.\n", sts->handle, req, que);
+ return;
+ }
+
+ /* Validate handle. */
+ if (handle < req->num_outstanding_cmds)
+ sp = req->outstanding_cmds[handle];
+ else
+ sp = NULL;
+
+ if (sp == NULL) {
+ ql_dbg(ql_dbg_io, vha, 0x3017,
+ "Invalid status handle (0x%x).\n", sts->handle);
+
+ if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
+ if (IS_P3P_TYPE(ha))
+ set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
+ else
+ set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+ qla2xxx_wake_dpc(vha);
+ }
+ return;
+ }
+
+ if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
+ qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
+ return;
+ }
+
+ /* Task Management completion. */
+ if (sp->type == SRB_TM_CMD) {
+ qla24xx_tm_iocb_entry(vha, req, pkt);
+ return;
+ }
+
+ /* Fast path completion. */
+ if (comp_status == CS_COMPLETE && scsi_status == 0) {
+ qla2x00_process_completed_request(vha, req, handle);
+
+ return;
+ }
+
+ req->outstanding_cmds[handle] = NULL;
+ cp = GET_CMD_SP(sp);
+ if (cp == NULL) {
+ ql_dbg(ql_dbg_io, vha, 0x3018,
+ "Command already returned (0x%x/%p).\n",
+ sts->handle, sp);
+
+ return;
+ }
+
+ lscsi_status = scsi_status & STATUS_MASK;
+
+ fcport = sp->fcport;
+
+ ox_id = 0;
+ sense_len = par_sense_len = rsp_info_len = resid_len =
+ fw_resid_len = 0;
+ if (IS_FWI2_CAPABLE(ha)) {
+ if (scsi_status & SS_SENSE_LEN_VALID)
+ sense_len = le32_to_cpu(sts24->sense_len);
+ if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
+ rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
+ if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
+ resid_len = le32_to_cpu(sts24->rsp_residual_count);
+ if (comp_status == CS_DATA_UNDERRUN)
+ fw_resid_len = le32_to_cpu(sts24->residual_len);
+ rsp_info = sts24->data;
+ sense_data = sts24->data;
+ host_to_fcp_swap(sts24->data, sizeof(sts24->data));
+ ox_id = le16_to_cpu(sts24->ox_id);
+ par_sense_len = sizeof(sts24->data);
+ /* Valid values of the retry delay timer are 0x1-0xffef */
+ if (sts24->retry_delay > 0 && sts24->retry_delay < 0xfff1)
+ retry_delay = sts24->retry_delay;
+ } else {
+ if (scsi_status & SS_SENSE_LEN_VALID)
+ sense_len = le16_to_cpu(sts->req_sense_length);
+ if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
+ rsp_info_len = le16_to_cpu(sts->rsp_info_len);
+ resid_len = le32_to_cpu(sts->residual_length);
+ rsp_info = sts->rsp_info;
+ sense_data = sts->req_sense_data;
+ par_sense_len = sizeof(sts->req_sense_data);
+ }
+
+ /* Check for any FCP transport errors. */
+ if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
+ /* Sense data lies beyond any FCP RESPONSE data. */
+ if (IS_FWI2_CAPABLE(ha)) {
+ sense_data += rsp_info_len;
+ par_sense_len -= rsp_info_len;
+ }
+ if (rsp_info_len > 3 && rsp_info[3]) {
+ ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
+ "FCP I/O protocol failure (0x%x/0x%x).\n",
+ rsp_info_len, rsp_info[3]);
+
+ res = DID_BUS_BUSY << 16;
+ goto out;
+ }
+ }
+
+ /* Check for overrun. */
+ if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
+ scsi_status & SS_RESIDUAL_OVER)
+ comp_status = CS_DATA_OVERRUN;
+
+ /*
+ * Check retry_delay_timer value if we receive a busy or
+ * queue full.
+ */
+ if (lscsi_status == SAM_STAT_TASK_SET_FULL ||
+ lscsi_status == SAM_STAT_BUSY)
+ qla2x00_set_retry_delay_timestamp(fcport, retry_delay);
+
+ /*
+ * Based on Host and scsi status generate status code for Linux
+ */
+ switch (comp_status) {
+ case CS_COMPLETE:
+ case CS_QUEUE_FULL:
+ if (scsi_status == 0) {
+ res = DID_OK << 16;
+ break;
+ }
+ if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
+ resid = resid_len;
+ scsi_set_resid(cp, resid);
+
+ if (!lscsi_status &&
+ ((unsigned)(scsi_bufflen(cp) - resid) <
+ cp->underflow)) {
+ ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
+ "Mid-layer underflow "
+ "detected (0x%x of 0x%x bytes).\n",
+ resid, scsi_bufflen(cp));
+
+ res = DID_ERROR << 16;
+ break;
+ }
+ }
+ res = DID_OK << 16 | lscsi_status;
+
+ if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
+ ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
+ "QUEUE FULL detected.\n");
+ break;
+ }
+ logit = 0;
+ if (lscsi_status != SS_CHECK_CONDITION)
+ break;
+
+ memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
+ if (!(scsi_status & SS_SENSE_LEN_VALID))
+ break;
+
+ qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
+ rsp, res);
+ break;
+
+ case CS_DATA_UNDERRUN:
+ /* Use F/W calculated residual length. */
+ resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
+ scsi_set_resid(cp, resid);
+ if (scsi_status & SS_RESIDUAL_UNDER) {
+ if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
+ ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
+ "Dropped frame(s) detected "
+ "(0x%x of 0x%x bytes).\n",
+ resid, scsi_bufflen(cp));
+
+ res = DID_ERROR << 16 | lscsi_status;
+ goto check_scsi_status;
+ }
+
+ if (!lscsi_status &&
+ ((unsigned)(scsi_bufflen(cp) - resid) <
+ cp->underflow)) {
+ ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
+ "Mid-layer underflow "
+ "detected (0x%x of 0x%x bytes).\n",
+ resid, scsi_bufflen(cp));
+
+ res = DID_ERROR << 16;
+ break;
+ }
+ } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
+ lscsi_status != SAM_STAT_BUSY) {
+ /*
+ * scsi status of task set and busy are considered to be
+ * task not completed.
+ */
+
+ ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
+ "Dropped frame(s) detected (0x%x "
+ "of 0x%x bytes).\n", resid,
+ scsi_bufflen(cp));
+
+ res = DID_ERROR << 16 | lscsi_status;
+ goto check_scsi_status;
+ } else {
+ ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
+ "scsi_status: 0x%x, lscsi_status: 0x%x\n",
+ scsi_status, lscsi_status);
+ }
+
+ res = DID_OK << 16 | lscsi_status;
+ logit = 0;
+
+check_scsi_status:
+ /*
+ * Check to see if SCSI Status is non zero. If so report SCSI
+ * Status.
+ */
+ if (lscsi_status != 0) {
+ if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
+ ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
+ "QUEUE FULL detected.\n");
+ logit = 1;
+ break;
+ }
+ if (lscsi_status != SS_CHECK_CONDITION)
+ break;
+
+ memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
+ if (!(scsi_status & SS_SENSE_LEN_VALID))
+ break;
+
+ qla2x00_handle_sense(sp, sense_data, par_sense_len,
+ sense_len, rsp, res);
+ }
+ break;
+
+ case CS_PORT_LOGGED_OUT:
+ case CS_PORT_CONFIG_CHG:
+ case CS_PORT_BUSY:
+ case CS_INCOMPLETE:
+ case CS_PORT_UNAVAILABLE:
+ case CS_TIMEOUT:
+ case CS_RESET:
+
+ /*
+ * We are going to have the fc class block the rport
+ * while we try to recover so instruct the mid layer
+ * to requeue until the class decides how to handle this.
+ */
+ res = DID_TRANSPORT_DISRUPTED << 16;
+
+ if (comp_status == CS_TIMEOUT) {
+ if (IS_FWI2_CAPABLE(ha))
+ break;
+ else if ((le16_to_cpu(sts->status_flags) &
+ SF_LOGOUT_SENT) == 0)
+ break;
+ }
+
+ ql_dbg(ql_dbg_io, fcport->vha, 0x3021,
+ "Port to be marked lost on fcport=%02x%02x%02x, current "
+ "port state= %s.\n", fcport->d_id.b.domain,
+ fcport->d_id.b.area, fcport->d_id.b.al_pa,
+ port_state_str[atomic_read(&fcport->state)]);
+
+ if (atomic_read(&fcport->state) == FCS_ONLINE)
+ qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
+ break;
+
+ case CS_ABORTED:
+ res = DID_RESET << 16;
+ break;
+
+ case CS_DIF_ERROR:
+ logit = qla2x00_handle_dif_error(sp, sts24);
+ res = cp->result;
+ break;
+
+ case CS_TRANSPORT:
+ res = DID_ERROR << 16;
+
+ if (!IS_PI_SPLIT_DET_CAPABLE(ha))
+ break;
+
+ if (state_flags & BIT_4)
+ scmd_printk(KERN_WARNING, cp,
+ "Unsupported device '%s' found.\n",
+ cp->device->vendor);
+ break;
+
+ default:
+ res = DID_ERROR << 16;
+ break;
+ }
+
+out:
+ if (logit)
+ ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
+ "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
+ "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
+ "rsp_info=0x%x resid=0x%x fw_resid=0x%x.\n",
+ comp_status, scsi_status, res, vha->host_no,
+ cp->device->id, cp->device->lun, fcport->d_id.b.domain,
+ fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
+ cp->cmnd, scsi_bufflen(cp), rsp_info_len,
+ resid_len, fw_resid_len);
+
+ if (rsp->status_srb == NULL)
+ sp->done(ha, sp, res);
+}
+
+/**
+ * qla2x00_status_cont_entry() - Process a Status Continuations entry.
+ * @ha: SCSI driver HA context
+ * @pkt: Entry pointer
+ *
+ * Extended sense data.
+ */
+static void
+qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
+{
+ uint8_t sense_sz = 0;
+ struct qla_hw_data *ha = rsp->hw;
+ struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
+ srb_t *sp = rsp->status_srb;
+ struct scsi_cmnd *cp;
+ uint32_t sense_len;
+ uint8_t *sense_ptr;
+
+ if (!sp || !GET_CMD_SENSE_LEN(sp))
+ return;
+
+ sense_len = GET_CMD_SENSE_LEN(sp);
+ sense_ptr = GET_CMD_SENSE_PTR(sp);
+
+ cp = GET_CMD_SP(sp);
+ if (cp == NULL) {
+ ql_log(ql_log_warn, vha, 0x3025,
+ "cmd is NULL: already returned to OS (sp=%p).\n", sp);
+
+ rsp->status_srb = NULL;
+ return;
+ }
+
+ if (sense_len > sizeof(pkt->data))
+ sense_sz = sizeof(pkt->data);
+ else
+ sense_sz = sense_len;
+
+ /* Move sense data. */
+ if (IS_FWI2_CAPABLE(ha))
+ host_to_fcp_swap(pkt->data, sizeof(pkt->data));
+ memcpy(sense_ptr, pkt->data, sense_sz);
+ ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
+ sense_ptr, sense_sz);
+
+ sense_len -= sense_sz;
+ sense_ptr += sense_sz;
+
+ SET_CMD_SENSE_PTR(sp, sense_ptr);
+ SET_CMD_SENSE_LEN(sp, sense_len);
+
+ /* Place command on done queue. */
+ if (sense_len == 0) {
+ rsp->status_srb = NULL;
+ sp->done(ha, sp, cp->result);
+ }
+}
+
+/**
+ * qla2x00_error_entry() - Process an error entry.
+ * @ha: SCSI driver HA context
+ * @pkt: Entry pointer
+ */
+static void
+qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
+{
+ srb_t *sp;
+ struct qla_hw_data *ha = vha->hw;
+ const char func[] = "ERROR-IOCB";
+ uint16_t que = MSW(pkt->handle);
+ struct req_que *req = NULL;
+ int res = DID_ERROR << 16;
+
+ ql_dbg(ql_dbg_async, vha, 0x502a,
+ "type of error status in response: 0x%x\n", pkt->entry_status);
+
+ if (que >= ha->max_req_queues || !ha->req_q_map[que])
+ goto fatal;
+
+ req = ha->req_q_map[que];
+
+ if (pkt->entry_status & RF_BUSY)
+ res = DID_BUS_BUSY << 16;
+
+ sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
+ if (sp) {
+ sp->done(ha, sp, res);
+ return;
+ }
+fatal:
+ ql_log(ql_log_warn, vha, 0x5030,
+ "Error entry - invalid handle/queue.\n");
+
+ if (IS_P3P_TYPE(ha))
+ set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
+ else
+ set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+ qla2xxx_wake_dpc(vha);
+}
+
+/**
+ * qla24xx_mbx_completion() - Process mailbox command completions.
+ * @ha: SCSI driver HA context
+ * @mb0: Mailbox0 register
+ */
+static void
+qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
+{
+ uint16_t cnt;
+ uint32_t mboxes;
+ uint16_t __iomem *wptr;
+ struct qla_hw_data *ha = vha->hw;
+ struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
+
+ /* Read all mbox registers? */
+ mboxes = (1 << ha->mbx_count) - 1;
+ if (!ha->mcp)
+ ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
+ else
+ mboxes = ha->mcp->in_mb;
+
+ /* Load return mailbox registers. */
+ ha->flags.mbox_int = 1;
+ ha->mailbox_out[0] = mb0;
+ mboxes >>= 1;
+ wptr = (uint16_t __iomem *)®->mailbox1;
+
+ for (cnt = 1; cnt < ha->mbx_count; cnt++) {
+ if (mboxes & BIT_0)
+ ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
+
+ mboxes >>= 1;
+ wptr++;
+ }
+}
+
+static void
+qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
+ struct abort_entry_24xx *pkt)
+{
+ const char func[] = "ABT_IOCB";
+ srb_t *sp;
+ struct srb_iocb *abt;
+
+ sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
+ if (!sp)
+ return;
+
+ abt = &sp->u.iocb_cmd;
+ abt->u.abt.comp_status = le32_to_cpu(pkt->nport_handle);
+ sp->done(vha, sp, 0);
+}
+
+/**
+ * qla24xx_process_response_queue() - Process response queue entries.
+ * @ha: SCSI driver HA context
+ */
+void qla24xx_process_response_queue(struct scsi_qla_host *vha,
+ struct rsp_que *rsp)
+{
+ struct sts_entry_24xx *pkt;
+ struct qla_hw_data *ha = vha->hw;
+
+ if (!vha->flags.online)
+ return;
+
+ while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
+ pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
+
+ rsp->ring_index++;
+ if (rsp->ring_index == rsp->length) {
+ rsp->ring_index = 0;
+ rsp->ring_ptr = rsp->ring;
+ } else {
+ rsp->ring_ptr++;
+ }
+
+ if (pkt->entry_status != 0) {
+ qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
+
+ if (qlt_24xx_process_response_error(vha, pkt))
+ goto process_err;
+
+ ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
+ wmb();
+ continue;
+ }
+process_err:
+
+ switch (pkt->entry_type) {
+ case STATUS_TYPE:
+ qla2x00_status_entry(vha, rsp, pkt);
+ break;
+ case STATUS_CONT_TYPE:
+ qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
+ break;
+ case VP_RPT_ID_IOCB_TYPE:
+ qla24xx_report_id_acquisition(vha,
+ (struct vp_rpt_id_entry_24xx *)pkt);
+ break;
+ case LOGINOUT_PORT_IOCB_TYPE:
+ qla24xx_logio_entry(vha, rsp->req,
+ (struct logio_entry_24xx *)pkt);
+ break;
+ case CT_IOCB_TYPE:
+ qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
+ break;
+ case ELS_IOCB_TYPE:
+ qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
+ break;
+ case ABTS_RECV_24XX:
+ /* ensure that the ATIO queue is empty */
+ qlt_24xx_process_atio_queue(vha);
+ case ABTS_RESP_24XX:
+ case CTIO_TYPE7:
+ case NOTIFY_ACK_TYPE:
+ case CTIO_CRC2:
+ qlt_response_pkt_all_vps(vha, (response_t *)pkt);
+ break;
+ case MARKER_TYPE:
+ /* Do nothing in this case, this check is to prevent it
+ * from falling into default case
+ */
+ break;
+ case ABORT_IOCB_TYPE:
+ qla24xx_abort_iocb_entry(vha, rsp->req,
+ (struct abort_entry_24xx *)pkt);
+ break;
+ default:
+ /* Type Not Supported. */
+ ql_dbg(ql_dbg_async, vha, 0x5042,
+ "Received unknown response pkt type %x "
+ "entry status=%x.\n",
+ pkt->entry_type, pkt->entry_status);
+ break;
+ }
+ ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
+ wmb();
+ }
+
+ /* Adjust ring index */
+ if (IS_P3P_TYPE(ha)) {
+ struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
+ WRT_REG_DWORD(®->rsp_q_out[0], rsp->ring_index);
+ } else
+ WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
+}
+
+static void
+qla2xxx_check_risc_status(scsi_qla_host_t *vha)
+{
+ int rval;
+ uint32_t cnt;
+ struct qla_hw_data *ha = vha->hw;
+ struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
+
+ if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
+ !IS_QLA27XX(ha))
+ return;
+
+ rval = QLA_SUCCESS;
+ WRT_REG_DWORD(®->iobase_addr, 0x7C00);
+ RD_REG_DWORD(®->iobase_addr);
+ WRT_REG_DWORD(®->iobase_window, 0x0001);
+ for (cnt = 10000; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 &&
+ rval == QLA_SUCCESS; cnt--) {
+ if (cnt) {
+ WRT_REG_DWORD(®->iobase_window, 0x0001);
+ udelay(10);
+ } else
+ rval = QLA_FUNCTION_TIMEOUT;
+ }
+ if (rval == QLA_SUCCESS)
+ goto next_test;
+
+ rval = QLA_SUCCESS;
+ WRT_REG_DWORD(®->iobase_window, 0x0003);
+ for (cnt = 100; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 &&
+ rval == QLA_SUCCESS; cnt--) {
+ if (cnt) {
+ WRT_REG_DWORD(®->iobase_window, 0x0003);
+ udelay(10);
+ } else
+ rval = QLA_FUNCTION_TIMEOUT;
+ }
+ if (rval != QLA_SUCCESS)
+ goto done;
+
+next_test:
+ if (RD_REG_DWORD(®->iobase_c8) & BIT_3)
+ ql_log(ql_log_info, vha, 0x504c,
+ "Additional code -- 0x55AA.\n");
+
+done:
+ WRT_REG_DWORD(®->iobase_window, 0x0000);
+ RD_REG_DWORD(®->iobase_window);
+}
+
+/**
+ * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
+ * @irq:
+ * @dev_id: SCSI driver HA context
+ *
+ * Called by system whenever the host adapter generates an interrupt.
+ *
+ * Returns handled flag.
+ */
+irqreturn_t
+qla24xx_intr_handler(int irq, void *dev_id)
+{
+ scsi_qla_host_t *vha;
+ struct qla_hw_data *ha;
+ struct device_reg_24xx __iomem *reg;
+ int status;
+ unsigned long iter;
+ uint32_t stat;
+ uint32_t hccr;
+ uint16_t mb[8];
+ struct rsp_que *rsp;
+ unsigned long flags;
+
+ rsp = (struct rsp_que *) dev_id;
+ if (!rsp) {
+ ql_log(ql_log_info, NULL, 0x5059,
+ "%s: NULL response queue pointer.\n", __func__);
+ return IRQ_NONE;
+ }
+
+ ha = rsp->hw;
+ reg = &ha->iobase->isp24;
+ status = 0;
+
+ if (unlikely(pci_channel_offline(ha->pdev)))
+ return IRQ_HANDLED;
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ vha = pci_get_drvdata(ha->pdev);
+ for (iter = 50; iter--; ) {
+ stat = RD_REG_DWORD(®->host_status);
+ if (qla2x00_check_reg32_for_disconnect(vha, stat))
+ break;
+ if (stat & HSRX_RISC_PAUSED) {
+ if (unlikely(pci_channel_offline(ha->pdev)))
+ break;
+
+ hccr = RD_REG_DWORD(®->hccr);
+
+ ql_log(ql_log_warn, vha, 0x504b,
+ "RISC paused -- HCCR=%x, Dumping firmware.\n",
+ hccr);
+
+ qla2xxx_check_risc_status(vha);
+
+ ha->isp_ops->fw_dump(vha, 1);
+ set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+ break;
+ } else if ((stat & HSRX_RISC_INT) == 0)
+ break;
+
+ switch (stat & 0xff) {
+ case INTR_ROM_MB_SUCCESS:
+ case INTR_ROM_MB_FAILED:
+ case INTR_MB_SUCCESS:
+ case INTR_MB_FAILED:
+ qla24xx_mbx_completion(vha, MSW(stat));
+ status |= MBX_INTERRUPT;
+
+ break;
+ case INTR_ASYNC_EVENT:
+ mb[0] = MSW(stat);
+ mb[1] = RD_REG_WORD(®->mailbox1);
+ mb[2] = RD_REG_WORD(®->mailbox2);
+ mb[3] = RD_REG_WORD(®->mailbox3);
+ qla2x00_async_event(vha, rsp, mb);
+ break;
+ case INTR_RSP_QUE_UPDATE:
+ case INTR_RSP_QUE_UPDATE_83XX:
+ qla24xx_process_response_queue(vha, rsp);
+ break;
+ case INTR_ATIO_QUE_UPDATE:
+ qlt_24xx_process_atio_queue(vha);
+ break;
+ case INTR_ATIO_RSP_QUE_UPDATE:
+ qlt_24xx_process_atio_queue(vha);
+ qla24xx_process_response_queue(vha, rsp);
+ break;
+ default:
+ ql_dbg(ql_dbg_async, vha, 0x504f,
+ "Unrecognized interrupt type (%d).\n", stat * 0xff);
+ break;
+ }
+ WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
+ RD_REG_DWORD_RELAXED(®->hccr);
+ if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
+ ndelay(3500);
+ }
+ qla2x00_handle_mbx_completion(ha, status);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t
+qla24xx_msix_rsp_q(int irq, void *dev_id)
+{
+ struct qla_hw_data *ha;
+ struct rsp_que *rsp;
+ struct device_reg_24xx __iomem *reg;
+ struct scsi_qla_host *vha;
+ unsigned long flags;
+ uint32_t stat = 0;
+
+ rsp = (struct rsp_que *) dev_id;
+ if (!rsp) {
+ ql_log(ql_log_info, NULL, 0x505a,
+ "%s: NULL response queue pointer.\n", __func__);
+ return IRQ_NONE;
+ }
+ ha = rsp->hw;
+ reg = &ha->iobase->isp24;
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+
+ vha = pci_get_drvdata(ha->pdev);
+ /*
+ * Use host_status register to check to PCI disconnection before we
+ * we process the response queue.
+ */
+ stat = RD_REG_DWORD(®->host_status);
+ if (qla2x00_check_reg32_for_disconnect(vha, stat))
+ goto out;
+ qla24xx_process_response_queue(vha, rsp);
+ if (!ha->flags.disable_msix_handshake) {
+ WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
+ RD_REG_DWORD_RELAXED(®->hccr);
+ }
+out:
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t
+qla25xx_msix_rsp_q(int irq, void *dev_id)
+{
+ struct qla_hw_data *ha;
+ scsi_qla_host_t *vha;
+ struct rsp_que *rsp;
+ struct device_reg_24xx __iomem *reg;
+ unsigned long flags;
+ uint32_t hccr = 0;
+
+ rsp = (struct rsp_que *) dev_id;
+ if (!rsp) {
+ ql_log(ql_log_info, NULL, 0x505b,
+ "%s: NULL response queue pointer.\n", __func__);
+ return IRQ_NONE;
+ }
+ ha = rsp->hw;
+ vha = pci_get_drvdata(ha->pdev);
+
+ /* Clear the interrupt, if enabled, for this response queue */
+ if (!ha->flags.disable_msix_handshake) {
+ reg = &ha->iobase->isp24;
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
+ hccr = RD_REG_DWORD_RELAXED(®->hccr);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ }
+ if (qla2x00_check_reg32_for_disconnect(vha, hccr))
+ goto out;
+ queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
+
+out:
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t
+qla24xx_msix_default(int irq, void *dev_id)
+{
+ scsi_qla_host_t *vha;
+ struct qla_hw_data *ha;
+ struct rsp_que *rsp;
+ struct device_reg_24xx __iomem *reg;
+ int status;
+ uint32_t stat;
+ uint32_t hccr;
+ uint16_t mb[8];
+ unsigned long flags;
+
+ rsp = (struct rsp_que *) dev_id;
+ if (!rsp) {
+ ql_log(ql_log_info, NULL, 0x505c,
+ "%s: NULL response queue pointer.\n", __func__);
+ return IRQ_NONE;
+ }
+ ha = rsp->hw;
+ reg = &ha->iobase->isp24;
+ status = 0;
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ vha = pci_get_drvdata(ha->pdev);
+ do {
+ stat = RD_REG_DWORD(®->host_status);
+ if (qla2x00_check_reg32_for_disconnect(vha, stat))
+ break;
+ if (stat & HSRX_RISC_PAUSED) {
+ if (unlikely(pci_channel_offline(ha->pdev)))
+ break;
+
+ hccr = RD_REG_DWORD(®->hccr);
+
+ ql_log(ql_log_info, vha, 0x5050,
+ "RISC paused -- HCCR=%x, Dumping firmware.\n",
+ hccr);
+
+ qla2xxx_check_risc_status(vha);
+
+ ha->isp_ops->fw_dump(vha, 1);
+ set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+ break;
+ } else if ((stat & HSRX_RISC_INT) == 0)
+ break;
+
+ switch (stat & 0xff) {
+ case INTR_ROM_MB_SUCCESS:
+ case INTR_ROM_MB_FAILED:
+ case INTR_MB_SUCCESS:
+ case INTR_MB_FAILED:
+ qla24xx_mbx_completion(vha, MSW(stat));
+ status |= MBX_INTERRUPT;
+
+ break;
+ case INTR_ASYNC_EVENT:
+ mb[0] = MSW(stat);
+ mb[1] = RD_REG_WORD(®->mailbox1);
+ mb[2] = RD_REG_WORD(®->mailbox2);
+ mb[3] = RD_REG_WORD(®->mailbox3);
+ qla2x00_async_event(vha, rsp, mb);
+ break;
+ case INTR_RSP_QUE_UPDATE:
+ case INTR_RSP_QUE_UPDATE_83XX:
+ qla24xx_process_response_queue(vha, rsp);
+ break;
+ case INTR_ATIO_QUE_UPDATE:
+ qlt_24xx_process_atio_queue(vha);
+ break;
+ case INTR_ATIO_RSP_QUE_UPDATE:
+ qlt_24xx_process_atio_queue(vha);
+ qla24xx_process_response_queue(vha, rsp);
+ break;
+ default:
+ ql_dbg(ql_dbg_async, vha, 0x5051,
+ "Unrecognized interrupt type (%d).\n", stat & 0xff);
+ break;
+ }
+ WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
+ } while (0);
+ qla2x00_handle_mbx_completion(ha, status);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ return IRQ_HANDLED;
+}
+
+/* Interrupt handling helpers. */
+
+struct qla_init_msix_entry {
+ const char *name;
+ irq_handler_t handler;
+};
+
+static struct qla_init_msix_entry msix_entries[3] = {
+ { "qla2xxx (default)", qla24xx_msix_default },
+ { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
+ { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
+};
+
+static struct qla_init_msix_entry qla82xx_msix_entries[2] = {
+ { "qla2xxx (default)", qla82xx_msix_default },
+ { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
+};
+
+static struct qla_init_msix_entry qla83xx_msix_entries[3] = {
+ { "qla2xxx (default)", qla24xx_msix_default },
+ { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
+ { "qla2xxx (atio_q)", qla83xx_msix_atio_q },
+};
+
+static void
+qla24xx_disable_msix(struct qla_hw_data *ha)
+{
+ int i;
+ struct qla_msix_entry *qentry;
+ scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
+
+ for (i = 0; i < ha->msix_count; i++) {
+ qentry = &ha->msix_entries[i];
+ if (qentry->have_irq)
+ free_irq(qentry->vector, qentry->rsp);
+ }
+ pci_disable_msix(ha->pdev);
+ kfree(ha->msix_entries);
+ ha->msix_entries = NULL;
+ ha->flags.msix_enabled = 0;
+ ql_dbg(ql_dbg_init, vha, 0x0042,
+ "Disabled the MSI.\n");
+}
+
+static int
+qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
+{
+#define MIN_MSIX_COUNT 2
+#define ATIO_VECTOR 2
+ int i, ret;
+ struct msix_entry *entries;
+ struct qla_msix_entry *qentry;
+ scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
+
+ entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
+ GFP_KERNEL);
+ if (!entries) {
+ ql_log(ql_log_warn, vha, 0x00bc,
+ "Failed to allocate memory for msix_entry.\n");
+ return -ENOMEM;
+ }
+
+ for (i = 0; i < ha->msix_count; i++)
+ entries[i].entry = i;
+
+ ret = pci_enable_msix_range(ha->pdev,
+ entries, MIN_MSIX_COUNT, ha->msix_count);
+ if (ret < 0) {
+ ql_log(ql_log_fatal, vha, 0x00c7,
+ "MSI-X: Failed to enable support, "
+ "giving up -- %d/%d.\n",
+ ha->msix_count, ret);
+ goto msix_out;
+ } else if (ret < ha->msix_count) {
+ ql_log(ql_log_warn, vha, 0x00c6,
+ "MSI-X: Failed to enable support "
+ "-- %d/%d\n Retry with %d vectors.\n",
+ ha->msix_count, ret, ret);
+ }
+ ha->msix_count = ret;
+ ha->max_rsp_queues = ha->msix_count - 1;
+ ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
+ ha->msix_count, GFP_KERNEL);
+ if (!ha->msix_entries) {
+ ql_log(ql_log_fatal, vha, 0x00c8,
+ "Failed to allocate memory for ha->msix_entries.\n");
+ ret = -ENOMEM;
+ goto msix_out;
+ }
+ ha->flags.msix_enabled = 1;
+
+ for (i = 0; i < ha->msix_count; i++) {
+ qentry = &ha->msix_entries[i];
+ qentry->vector = entries[i].vector;
+ qentry->entry = entries[i].entry;
+ qentry->have_irq = 0;
+ qentry->rsp = NULL;
+ }
+
+ /* Enable MSI-X vectors for the base queue */
+ for (i = 0; i < 2; i++) {
+ qentry = &ha->msix_entries[i];
+ if (IS_P3P_TYPE(ha))
+ ret = request_irq(qentry->vector,
+ qla82xx_msix_entries[i].handler,
+ 0, qla82xx_msix_entries[i].name, rsp);
+ else
+ ret = request_irq(qentry->vector,
+ msix_entries[i].handler,
+ 0, msix_entries[i].name, rsp);
+ if (ret)
+ goto msix_register_fail;
+ qentry->have_irq = 1;
+ qentry->rsp = rsp;
+ rsp->msix = qentry;
+ }
+
+ /*
+ * If target mode is enable, also request the vector for the ATIO
+ * queue.
+ */
+ if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) {
+ qentry = &ha->msix_entries[ATIO_VECTOR];
+ ret = request_irq(qentry->vector,
+ qla83xx_msix_entries[ATIO_VECTOR].handler,
+ 0, qla83xx_msix_entries[ATIO_VECTOR].name, rsp);
+ qentry->have_irq = 1;
+ qentry->rsp = rsp;
+ rsp->msix = qentry;
+ }
+
+msix_register_fail:
+ if (ret) {
+ ql_log(ql_log_fatal, vha, 0x00cb,
+ "MSI-X: unable to register handler -- %x/%d.\n",
+ qentry->vector, ret);
+ qla24xx_disable_msix(ha);
+ ha->mqenable = 0;
+ goto msix_out;
+ }
+
+ /* Enable MSI-X vector for response queue update for queue 0 */
+ if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
+ if (ha->msixbase && ha->mqiobase &&
+ (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
+ ha->mqenable = 1;
+ } else
+ if (ha->mqiobase
+ && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
+ ha->mqenable = 1;
+ ql_dbg(ql_dbg_multiq, vha, 0xc005,
+ "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
+ ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
+ ql_dbg(ql_dbg_init, vha, 0x0055,
+ "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
+ ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
+
+msix_out:
+ kfree(entries);
+ return ret;
+}
+
+int
+qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
+{
+ int ret = QLA_FUNCTION_FAILED;
+ device_reg_t *reg = ha->iobase;
+ scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
+
+ /* If possible, enable MSI-X. */
+ if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
+ !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) && !IS_QLAFX00(ha) &&
+ !IS_QLA27XX(ha))
+ goto skip_msi;
+
+ if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
+ (ha->pdev->subsystem_device == 0x7040 ||
+ ha->pdev->subsystem_device == 0x7041 ||
+ ha->pdev->subsystem_device == 0x1705)) {
+ ql_log(ql_log_warn, vha, 0x0034,
+ "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
+ ha->pdev->subsystem_vendor,
+ ha->pdev->subsystem_device);
+ goto skip_msi;
+ }
+
+ if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
+ ql_log(ql_log_warn, vha, 0x0035,
+ "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
+ ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
+ goto skip_msix;
+ }
+
+ ret = qla24xx_enable_msix(ha, rsp);
+ if (!ret) {
+ ql_dbg(ql_dbg_init, vha, 0x0036,
+ "MSI-X: Enabled (0x%X, 0x%X).\n",
+ ha->chip_revision, ha->fw_attributes);
+ goto clear_risc_ints;
+ }
+
+skip_msix:
+
+ ql_log(ql_log_info, vha, 0x0037,
+ "Falling back-to MSI mode -%d.\n", ret);
+
+ if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
+ !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
+ !IS_QLA27XX(ha))
+ goto skip_msi;
+
+ ret = pci_enable_msi(ha->pdev);
+ if (!ret) {
+ ql_dbg(ql_dbg_init, vha, 0x0038,
+ "MSI: Enabled.\n");
+ ha->flags.msi_enabled = 1;
+ } else
+ ql_log(ql_log_warn, vha, 0x0039,
+ "Falling back-to INTa mode -- %d.\n", ret);
+skip_msi:
+
+ /* Skip INTx on ISP82xx. */
+ if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
+ return QLA_FUNCTION_FAILED;
+
+ ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
+ ha->flags.msi_enabled ? 0 : IRQF_SHARED,
+ QLA2XXX_DRIVER_NAME, rsp);
+ if (ret) {
+ ql_log(ql_log_warn, vha, 0x003a,
+ "Failed to reserve interrupt %d already in use.\n",
+ ha->pdev->irq);
+ goto fail;
+ } else if (!ha->flags.msi_enabled) {
+ ql_dbg(ql_dbg_init, vha, 0x0125,
+ "INTa mode: Enabled.\n");
+ ha->flags.mr_intr_valid = 1;
+ }
+
+clear_risc_ints:
+ if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
+ goto fail;
+
+ spin_lock_irq(&ha->hardware_lock);
+ WRT_REG_WORD(®->isp.semaphore, 0);
+ spin_unlock_irq(&ha->hardware_lock);
+
+fail:
+ return ret;
+}
+
+void
+qla2x00_free_irqs(scsi_qla_host_t *vha)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct rsp_que *rsp;
+
+ /*
+ * We need to check that ha->rsp_q_map is valid in case we are called
+ * from a probe failure context.
+ */
+ if (!ha->rsp_q_map || !ha->rsp_q_map[0])
+ return;
+ rsp = ha->rsp_q_map[0];
+
+ if (ha->flags.msix_enabled)
+ qla24xx_disable_msix(ha);
+ else if (ha->flags.msi_enabled) {
+ free_irq(ha->pdev->irq, rsp);
+ pci_disable_msi(ha->pdev);
+ } else
+ free_irq(ha->pdev->irq, rsp);
+}
+
+
+int qla25xx_request_irq(struct rsp_que *rsp)
+{
+ struct qla_hw_data *ha = rsp->hw;
+ struct qla_init_msix_entry *intr = &msix_entries[2];
+ struct qla_msix_entry *msix = rsp->msix;
+ scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
+ int ret;
+
+ ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
+ if (ret) {
+ ql_log(ql_log_fatal, vha, 0x00e6,
+ "MSI-X: Unable to register handler -- %x/%d.\n",
+ msix->vector, ret);
+ return ret;
+ }
+ msix->have_irq = 1;
+ msix->rsp = rsp;
+ return ret;
+}
Code Review / kvmfornfv.git / blobdiff