/* * QLogic Fibre Channel HBA Driver * Copyright (c) 2003-2010 QLogic Corporation * * See LICENSE.qla2xxx for copyright and licensing details. */ #include "qla_def.h" #include #include #include #include #include static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t); static void qla2x00_process_completed_request(struct scsi_qla_host *, struct req_que *, uint32_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) { printk(KERN_INFO "%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 (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 hammmer 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*/ DEBUG2(printk("scsi(%ld): Unrecognized " "interrupt type (%d).\n", vha->host_no, 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); } } spin_unlock_irqrestore(&ha->hardware_lock, flags); if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && (status & MBX_INTERRUPT) && ha->flags.mbox_int) { set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); complete(&ha->mbx_intr_comp); } return (IRQ_HANDLED); } /** * 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) { printk(KERN_INFO "%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 (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)) qla_printk(KERN_INFO, ha, "Parity error -- " "HCCR=%x, Dumping firmware!\n", hccr); else qla_printk(KERN_INFO, ha, "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 * hammmer 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: DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " "(%d).\n", vha->host_no, stat & 0xff)); break; } WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); RD_REG_WORD_RELAXED(®->hccr); } spin_unlock_irqrestore(&ha->hardware_lock, flags); if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && (status & MBX_INTERRUPT) && ha->flags.mbox_int) { set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); complete(&ha->mbx_intr_comp); } 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; uint16_t __iomem *wptr; struct qla_hw_data *ha = vha->hw; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; /* Load return mailbox registers. */ ha->flags.mbox_int = 1; ha->mailbox_out[0] = mb0; 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) ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr); else ha->mailbox_out[cnt] = RD_REG_WORD(wptr); wptr++; } if (ha->mcp) { DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n", __func__, vha->host_no, ha->mcp->mb[0])); } else { DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n", __func__, vha->host_no)); } } 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; uint16_t __iomem *wptr; uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS]; /* Seed data -- mailbox1 -> mailbox7. */ wptr = (uint16_t __iomem *)®24->mailbox1; for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++) mb[cnt] = RD_REG_WORD(wptr); DEBUG2(printk("scsi(%ld): Inter-Driver Commucation %s -- " "%04x %04x %04x %04x %04x %04x %04x.\n", vha->host_no, event[aen & 0xff], mb[0], mb[1], mb[2], mb[3], mb[4], mb[5], mb[6])); /* Acknowledgement needed? [Notify && non-zero timeout]. */ timeout = (descr >> 8) & 0xf; if (aen != MBA_IDC_NOTIFY || !timeout) return; DEBUG2(printk("scsi(%ld): Inter-Driver Commucation %s -- " "ACK timeout=%d.\n", vha->host_no, event[aen & 0xff], timeout)); rval = qla2x00_post_idc_ack_work(vha, mb); if (rval != QLA_SUCCESS) qla_printk(KERN_WARNING, vha->hw, "IDC failed to post ACK.\n"); } /** * 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) { #define LS_UNKNOWN 2 static char *link_speeds[] = { "1", "2", "?", "4", "8", "10" }; char *link_speed; 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; uint8_t rscn_queue_index; unsigned long flags; /* Setup to process RIO completion. */ handle_cnt = 0; if (IS_QLA8XXX_TYPE(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 */ DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n", vha->host_no)); set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); break; case MBA_SYSTEM_ERR: /* System Error */ mbx = IS_QLA81XX(ha) ? RD_REG_WORD(®24->mailbox7) : 0; qla_printk(KERN_INFO, ha, "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) { qla_printk(KERN_ERR, ha, "Unrecoverable Hardware Error: adapter " "marked OFFLINE!\n"); vha->flags.online = 0; } else { /* Check to see if MPI timeout occurred */ if ((mbx & MBX_3) && (ha->flags.port0)) set_bit(MPI_RESET_NEEDED, &vha->dpc_flags); set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); } } else if (mb[1] == 0) { qla_printk(KERN_INFO, ha, "Unrecoverable Hardware Error: adapter marked " "OFFLINE!\n"); vha->flags.online = 0; } else set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); break; case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ DEBUG2(printk("scsi(%ld): ISP Request Transfer Error (%x).\n", vha->host_no, mb[1])); qla_printk(KERN_WARNING, ha, "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 */ DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n", vha->host_no)); qla_printk(KERN_WARNING, ha, "ISP Response Transfer Error.\n"); set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); break; case MBA_WAKEUP_THRES: /* Request Queue Wake-up */ DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n", vha->host_no)); break; case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */ DEBUG2(printk("scsi(%ld): LIP occurred (%x).\n", vha->host_no, mb[1])); qla_printk(KERN_INFO, ha, "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)) { link_speed = link_speeds[0]; ha->link_data_rate = PORT_SPEED_1GB; } else { link_speed = link_speeds[LS_UNKNOWN]; if (mb[1] < 5) link_speed = link_speeds[mb[1]]; else if (mb[1] == 0x13) link_speed = link_speeds[5]; ha->link_data_rate = mb[1]; } DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n", vha->host_no, link_speed)); qla_printk(KERN_INFO, ha, "LOOP UP detected (%s Gbps).\n", link_speed); 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) ? RD_REG_WORD(®24->mailbox4) : 0; mbx = IS_QLA82XX(ha) ? RD_REG_WORD(®82->mailbox_out[4]) : mbx; DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN " "(%x %x %x %x).\n", vha->host_no, mb[1], mb[2], mb[3], mbx)); qla_printk(KERN_INFO, ha, "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); 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 */ DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n", vha->host_no, mb[1])); qla_printk(KERN_INFO, ha, "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_QLA8XXX_TYPE(ha)) { DEBUG2(printk("scsi(%ld): DCBX Completed -- %04x %04x " "%04x\n", vha->host_no, mb[1], mb[2], mb[3])); if (ha->notify_dcbx_comp) complete(&ha->dcbx_comp); } else DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE " "received.\n", vha->host_no)); /* * 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; DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection " "received.\n", vha->host_no)); qla_printk(KERN_INFO, ha, "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) { DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n", vha->host_no)); DEBUG(printk(KERN_INFO "scsi(%ld): Port unavailable %04x %04x %04x.\n", vha->host_no, mb[1], mb[2], mb[3])); 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) { DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE " "ignored %04x/%04x/%04x.\n", vha->host_no, mb[1], mb[2], mb[3])); break; } DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n", vha->host_no)); DEBUG(printk(KERN_INFO "scsi(%ld): Port database changed %04x %04x %04x.\n", vha->host_no, 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); vha->flags.rscn_queue_overflow = 1; set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); 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; DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n", vha->host_no)); DEBUG(printk(KERN_INFO "scsi(%ld): RSCN database changed -- %04x %04x %04x.\n", vha->host_no, 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) { DEBUG(printk(KERN_INFO "scsi(%ld): Ignoring RSCN update to local host " "port ID (%06x)\n", vha->host_no, host_pid)); break; } /* Ignore reserved bits from RSCN-payload. */ rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2]; rscn_queue_index = vha->rscn_in_ptr + 1; if (rscn_queue_index == MAX_RSCN_COUNT) rscn_queue_index = 0; if (rscn_queue_index != vha->rscn_out_ptr) { vha->rscn_queue[vha->rscn_in_ptr] = rscn_entry; vha->rscn_in_ptr = rscn_queue_index; } else { vha->flags.rscn_queue_overflow = 1; } atomic_set(&vha->loop_state, LOOP_UPDATE); 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: DEBUG3(printk("scsi(%ld): [R|Z]IO update completion.\n", vha->host_no)); if (IS_FWI2_CAPABLE(ha)) qla24xx_process_response_queue(vha, rsp); else qla2x00_process_response_queue(rsp); break; case MBA_DISCARD_RND_FRAME: DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x " "%04x.\n", vha->host_no, mb[1], mb[2], mb[3])); break; case MBA_TRACE_NOTIFICATION: DEBUG2(printk("scsi(%ld): Trace Notification -- %04x %04x.\n", vha->host_no, mb[1], mb[2])); break; case MBA_ISP84XX_ALERT: DEBUG2(printk("scsi(%ld): ISP84XX Alert Notification -- " "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3])); spin_lock_irqsave(&ha->cs84xx->access_lock, flags); switch (mb[1]) { case A84_PANIC_RECOVERY: qla_printk(KERN_INFO, ha, "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]; DEBUG2(qla_printk(KERN_INFO, ha, "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]; DEBUG2(qla_printk(KERN_INFO, ha, "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; DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX: gold " "firmware version %x\n", ha->cs84xx->gold_fw_version)); break; default: qla_printk(KERN_ERR, ha, "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: DEBUG2(printk("scsi(%ld): DCBX Started -- %04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3])); break; case MBA_DCBX_PARAM_UPDATE: DEBUG2(printk("scsi(%ld): DCBX Parameters Updated -- " "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3])); break; case MBA_FCF_CONF_ERR: DEBUG2(printk("scsi(%ld): FCF Configuration Error -- " "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3])); break; case MBA_IDC_COMPLETE: case MBA_IDC_NOTIFY: case MBA_IDC_TIME_EXT: qla81xx_idc_event(vha, mb[0], mb[1]); break; } 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 */ static 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 >= MAX_OUTSTANDING_COMMANDS) { DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n", vha->host_no, index)); qla_printk(KERN_WARNING, ha, "Invalid SCSI completion handle %d.\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; /* Save ISP completion status */ sp->cmd->result = DID_OK << 16; qla2x00_sp_compl(ha, sp); } else { DEBUG2(printk("scsi(%ld) Req:%d: Invalid ISP SCSI completion" " handle(0x%x)\n", vha->host_no, req->id, index)); qla_printk(KERN_WARNING, ha, "Invalid ISP SCSI completion handle\n"); set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); } } static 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 >= MAX_OUTSTANDING_COMMANDS) { qla_printk(KERN_WARNING, ha, "%s: Invalid completion handle (%x).\n", func, index); set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); goto done; } sp = req->outstanding_cmds[index]; if (!sp) { qla_printk(KERN_WARNING, ha, "%s: Invalid completion handle (%x) -- timed-out.\n", func, index); return sp; } if (sp->handle != index) { qla_printk(KERN_WARNING, ha, "%s: SRB handle (%x) mismatch %x.\n", func, 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; struct srb_ctx *ctx; uint16_t *data; uint16_t status; sp = qla2x00_get_sp_from_handle(vha, func, req, mbx); if (!sp) return; ctx = sp->ctx; lio = ctx->u.iocb_cmd; type = ctx->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) { DEBUG2(printk(KERN_WARNING "scsi(%ld:%x): Async-%s error entry - portid=%02x%02x%02x " "entry-status=%x status=%x state-flag=%x " "status-flags=%x.\n", fcport->vha->host_no, sp->handle, type, 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))); DEBUG2(qla2x00_dump_buffer((uint8_t *)mbx, sizeof(*mbx))); goto logio_done; } status = le16_to_cpu(mbx->status); if (status == 0x30 && ctx->type == SRB_LOGIN_CMD && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) status = 0; if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) { DEBUG2(printk(KERN_DEBUG "scsi(%ld:%x): Async-%s complete - portid=%02x%02x%02x " "mbx1=%x.\n", fcport->vha->host_no, sp->handle, type, 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 (ctx->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; } DEBUG2(printk(KERN_WARNING "scsi(%ld:%x): Async-%s failed - portid=%02x%02x%02x status=%x " "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", fcport->vha->host_no, sp->handle, type, 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: lio->done(sp); } 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; struct qla_hw_data *ha = vha->hw; srb_t *sp; struct srb_ctx *sp_bsg; struct fc_bsg_job *bsg_job; uint16_t comp_status; sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); if (!sp) return; sp_bsg = sp->ctx; bsg_job = sp_bsg->u.bsg_job; type = NULL; switch (sp_bsg->type) { case SRB_CT_CMD: type = "ct pass-through"; break; default: qla_printk(KERN_WARNING, ha, "%s: Unrecognized SRB: (%p) type=%d.\n", func, sp, sp_bsg->type); return; } 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) { bsg_job->reply->result = DID_OK << 16; bsg_job->reply->reply_payload_rcv_len = le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len); DEBUG2(qla_printk(KERN_WARNING, ha, "scsi(%ld): CT pass-through-%s error " "comp_status-status=0x%x total_byte = 0x%x.\n", vha->host_no, type, comp_status, bsg_job->reply->reply_payload_rcv_len)); } else { DEBUG2(qla_printk(KERN_WARNING, ha, "scsi(%ld): CT pass-through-%s error " "comp_status-status=0x%x.\n", vha->host_no, type, comp_status)); bsg_job->reply->result = DID_ERROR << 16; bsg_job->reply->reply_payload_rcv_len = 0; } DEBUG2(qla2x00_dump_buffer((uint8_t *)pkt, sizeof(*pkt))); } else { bsg_job->reply->result = DID_OK << 16;; bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len; bsg_job->reply_len = 0; } dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list, bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE); dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list, bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE); if (sp_bsg->type == SRB_ELS_CMD_HST || sp_bsg->type == SRB_CT_CMD) kfree(sp->fcport); kfree(sp->ctx); mempool_free(sp, ha->srb_mempool); bsg_job->job_done(bsg_job); } 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; struct qla_hw_data *ha = vha->hw; srb_t *sp; struct srb_ctx *sp_bsg; struct fc_bsg_job *bsg_job; uint16_t comp_status; uint32_t fw_status[3]; uint8_t* fw_sts_ptr; sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); if (!sp) return; sp_bsg = sp->ctx; bsg_job = sp_bsg->u.bsg_job; type = NULL; switch (sp_bsg->type) { case SRB_ELS_CMD_RPT: case SRB_ELS_CMD_HST: type = "els"; break; case SRB_CT_CMD: type = "ct pass-through"; break; default: qla_printk(KERN_WARNING, ha, "%s: Unrecognized SRB: (%p) type=%d.\n", func, sp, sp_bsg->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) { bsg_job->reply->result = DID_OK << 16; bsg_job->reply->reply_payload_rcv_len = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->total_byte_count); DEBUG2(qla_printk(KERN_WARNING, ha, "scsi(%ld:0x%x): ELS-CT pass-through-%s error comp_status-status=0x%x " "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n", vha->host_no, sp->handle, type, 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 { DEBUG2(qla_printk(KERN_WARNING, ha, "scsi(%ld:0x%x): ELS-CT pass-through-%s error comp_status-status=0x%x " "error subcode 1=0x%x error subcode 2=0x%x.\n", vha->host_no, sp->handle, type, 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))); bsg_job->reply->result = 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)); } DEBUG2(qla2x00_dump_buffer((uint8_t *)pkt, sizeof(*pkt))); } else { bsg_job->reply->result = DID_OK << 16;; bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len; bsg_job->reply_len = 0; } dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list, bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE); dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list, bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE); if ((sp_bsg->type == SRB_ELS_CMD_HST) || (sp_bsg->type == SRB_CT_CMD)) kfree(sp->fcport); kfree(sp->ctx); mempool_free(sp, ha->srb_mempool); bsg_job->job_done(bsg_job); } 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; struct srb_ctx *ctx; uint16_t *data; uint32_t iop[2]; sp = qla2x00_get_sp_from_handle(vha, func, req, logio); if (!sp) return; ctx = sp->ctx; lio = ctx->u.iocb_cmd; type = ctx->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) { DEBUG2(printk(KERN_WARNING "scsi(%ld:%x): Async-%s error entry - " "portid=%02x%02x%02x entry-status=%x.\n", fcport->vha->host_no, sp->handle, type, fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa, logio->entry_status)); DEBUG2(qla2x00_dump_buffer((uint8_t *)logio, sizeof(*logio))); goto logio_done; } if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) { DEBUG2(printk(KERN_DEBUG "scsi(%ld:%x): Async-%s complete - portid=%02x%02x%02x " "iop0=%x.\n", fcport->vha->host_no, sp->handle, type, 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 (ctx->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 (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; } DEBUG2(printk(KERN_WARNING "scsi(%ld:%x): Async-%s failed - portid=%02x%02x%02x comp=%x " "iop0=%x iop1=%x.\n", fcport->vha->host_no, sp->handle, type, 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: lio->done(sp); } static void qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, struct tsk_mgmt_entry *tsk) { const char func[] = "TMF-IOCB"; const char *type; fc_port_t *fcport; srb_t *sp; struct srb_iocb *iocb; struct srb_ctx *ctx; struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk; int error = 1; sp = qla2x00_get_sp_from_handle(vha, func, req, tsk); if (!sp) return; ctx = sp->ctx; iocb = ctx->u.iocb_cmd; type = ctx->name; fcport = sp->fcport; if (sts->entry_status) { DEBUG2(printk(KERN_WARNING "scsi(%ld:%x): Async-%s error - entry-status(%x).\n", fcport->vha->host_no, sp->handle, type, sts->entry_status)); } else if (sts->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) { DEBUG2(printk(KERN_WARNING "scsi(%ld:%x): Async-%s error - completion status(%x).\n", fcport->vha->host_no, sp->handle, type, sts->comp_status)); } else if (!(le16_to_cpu(sts->scsi_status) & SS_RESPONSE_INFO_LEN_VALID)) { DEBUG2(printk(KERN_WARNING "scsi(%ld:%x): Async-%s error - no response info(%x).\n", fcport->vha->host_no, sp->handle, type, sts->scsi_status)); } else if (le32_to_cpu(sts->rsp_data_len) < 4) { DEBUG2(printk(KERN_WARNING "scsi(%ld:%x): Async-%s error - not enough response(%d).\n", fcport->vha->host_no, sp->handle, type, sts->rsp_data_len)); } else if (sts->data[3]) { DEBUG2(printk(KERN_WARNING "scsi(%ld:%x): Async-%s error - response(%x).\n", fcport->vha->host_no, sp->handle, type, sts->data[3])); } else { error = 0; } if (error) { iocb->u.tmf.data = error; DEBUG2(qla2x00_dump_buffer((uint8_t *)sts, sizeof(*sts))); } iocb->done(sp); } /** * 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) { DEBUG3(printk(KERN_INFO "scsi(%ld): Process error entry.\n", vha->host_no)); 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. */ DEBUG4(printk(KERN_WARNING "scsi(%ld): Received unknown response pkt type %x " "entry status=%x.\n", vha->host_no, 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) { struct scsi_cmnd *cp = sp->cmd; if (sense_len >= SCSI_SENSE_BUFFERSIZE) sense_len = SCSI_SENSE_BUFFERSIZE; sp->request_sense_length = sense_len; sp->request_sense_ptr = cp->sense_buffer; if (sp->request_sense_length > par_sense_len) sense_len = par_sense_len; memcpy(cp->sense_buffer, sense_data, sense_len); sp->request_sense_ptr += sense_len; sp->request_sense_length -= sense_len; if (sp->request_sense_length != 0) rsp->status_srb = sp; DEBUG5(printk("%s(): Check condition Sense data, scsi(%ld:%d:%d:%d) " "cmd=%p\n", __func__, sp->fcport->vha->host_no, cp->device->channel, cp->device->id, cp->device->lun, cp)); if (sense_len) DEBUG5(qla2x00_dump_buffer(cp->sense_buffer, sense_len)); } struct scsi_dif_tuple { __be16 guard; /* Checksum */ __be16 app_tag; /* APPL identifer */ __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 void qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24) { struct scsi_cmnd *cmd = sp->cmd; struct scsi_dif_tuple *ep = (struct scsi_dif_tuple *)&sts24->data[20]; struct scsi_dif_tuple *ap = (struct scsi_dif_tuple *)&sts24->data[12]; uint32_t e_ref_tag, a_ref_tag; uint16_t e_app_tag, a_app_tag; uint16_t e_guard, a_guard; e_ref_tag = be32_to_cpu(ep->ref_tag); a_ref_tag = be32_to_cpu(ap->ref_tag); e_app_tag = be16_to_cpu(ep->app_tag); a_app_tag = be16_to_cpu(ap->app_tag); e_guard = be16_to_cpu(ep->guard); a_guard = be16_to_cpu(ap->guard); DEBUG18(printk(KERN_DEBUG "%s(): iocb(s) %p Returned STATUS\n", __func__, sts24)); DEBUG18(printk(KERN_ERR "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)); /* 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; } /* 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; } /* 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; } } /** * 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; 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; } 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]; /* Fast path completion. */ if (comp_status == CS_COMPLETE && scsi_status == 0) { qla2x00_process_completed_request(vha, req, handle); return; } /* Validate handle. */ if (handle < MAX_OUTSTANDING_COMMANDS) { sp = req->outstanding_cmds[handle]; req->outstanding_cmds[handle] = NULL; } else sp = NULL; if (sp == NULL) { qla_printk(KERN_WARNING, ha, "scsi(%ld): Invalid status handle (0x%x).\n", vha->host_no, sts->handle); set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); qla2xxx_wake_dpc(vha); return; } cp = sp->cmd; if (cp == NULL) { qla_printk(KERN_WARNING, ha, "scsi(%ld): Command already returned (0x%x/%p).\n", vha->host_no, 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); } 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]) { DEBUG2(qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): FCP I/O protocol failure " "(0x%x/0x%x).\n", vha->host_no, cp->device->id, cp->device->lun, rsp_info_len, rsp_info[3])); cp->result = 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; /* * 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) { cp->result = 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)) { qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): Mid-layer underflow " "detected (0x%x of 0x%x bytes).\n", vha->host_no, cp->device->id, cp->device->lun, resid, scsi_bufflen(cp)); cp->result = DID_ERROR << 16; break; } } cp->result = DID_OK << 16 | lscsi_status; if (lscsi_status == SAM_STAT_TASK_SET_FULL) { DEBUG2(qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d) QUEUE FULL detected.\n", vha->host_no, cp->device->id, cp->device->lun)); 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); 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) { DEBUG2(qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d) Dropped frame(s) detected " "(0x%x of 0x%x bytes).\n", vha->host_no, cp->device->id, cp->device->lun, resid, scsi_bufflen(cp))); cp->result = DID_ERROR << 16 | lscsi_status; break; } if (!lscsi_status && ((unsigned)(scsi_bufflen(cp) - resid) < cp->underflow)) { qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): Mid-layer underflow " "detected (0x%x of 0x%x bytes).\n", vha->host_no, cp->device->id, cp->device->lun, resid, scsi_bufflen(cp)); cp->result = DID_ERROR << 16; break; } } else { DEBUG2(qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d) Dropped frame(s) detected (0x%x " "of 0x%x bytes).\n", vha->host_no, cp->device->id, cp->device->lun, resid, scsi_bufflen(cp))); cp->result = DID_ERROR << 16 | lscsi_status; goto check_scsi_status; } cp->result = 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) { DEBUG2(qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d) QUEUE FULL detected.\n", vha->host_no, cp->device->id, cp->device->lun)); 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); } 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. */ cp->result = 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; } DEBUG2(qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d) Port down status: port-state=0x%x\n", vha->host_no, cp->device->id, cp->device->lun, atomic_read(&fcport->state))); if (atomic_read(&fcport->state) == FCS_ONLINE) qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1); break; case CS_ABORTED: cp->result = DID_RESET << 16; break; case CS_DIF_ERROR: qla2x00_handle_dif_error(sp, sts24); break; default: cp->result = DID_ERROR << 16; break; } out: if (logit) DEBUG2(qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d) FCP command status: 0x%x-0x%x (0x%x) " "portid=%02x%02x%02x oxid=0x%x cdb=%02x%02x%02x len=0x%x " "rsp_info=0x%x resid=0x%x fw_resid=0x%x\n", vha->host_no, cp->device->id, cp->device->lun, comp_status, scsi_status, cp->result, fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id, cp->cmnd[0], cp->cmnd[1], cp->cmnd[2], scsi_bufflen(cp), rsp_info_len, resid_len, fw_resid_len)); if (rsp->status_srb == NULL) qla2x00_sp_compl(ha, sp); } /** * 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; srb_t *sp = rsp->status_srb; struct scsi_cmnd *cp; if (sp != NULL && sp->request_sense_length != 0) { cp = sp->cmd; if (cp == NULL) { DEBUG2(printk("%s(): Cmd already returned back to OS " "sp=%p.\n", __func__, sp)); qla_printk(KERN_INFO, ha, "cmd is NULL: already returned to OS (sp=%p)\n", sp); rsp->status_srb = NULL; return; } if (sp->request_sense_length > sizeof(pkt->data)) { sense_sz = sizeof(pkt->data); } else { sense_sz = sp->request_sense_length; } /* Move sense data. */ if (IS_FWI2_CAPABLE(ha)) host_to_fcp_swap(pkt->data, sizeof(pkt->data)); memcpy(sp->request_sense_ptr, pkt->data, sense_sz); DEBUG5(qla2x00_dump_buffer(sp->request_sense_ptr, sense_sz)); sp->request_sense_ptr += sense_sz; sp->request_sense_length -= sense_sz; /* Place command on done queue. */ if (sp->request_sense_length == 0) { rsp->status_srb = NULL; qla2x00_sp_compl(ha, sp); } } } /** * 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; uint32_t handle = LSW(pkt->handle); uint16_t que = MSW(pkt->handle); struct req_que *req = ha->req_q_map[que]; #if defined(QL_DEBUG_LEVEL_2) if (pkt->entry_status & RF_INV_E_ORDER) qla_printk(KERN_ERR, ha, "%s: Invalid Entry Order\n", __func__); else if (pkt->entry_status & RF_INV_E_COUNT) qla_printk(KERN_ERR, ha, "%s: Invalid Entry Count\n", __func__); else if (pkt->entry_status & RF_INV_E_PARAM) qla_printk(KERN_ERR, ha, "%s: Invalid Entry Parameter\n", __func__); else if (pkt->entry_status & RF_INV_E_TYPE) qla_printk(KERN_ERR, ha, "%s: Invalid Entry Type\n", __func__); else if (pkt->entry_status & RF_BUSY) qla_printk(KERN_ERR, ha, "%s: Busy\n", __func__); else qla_printk(KERN_ERR, ha, "%s: UNKNOWN flag error\n", __func__); #endif /* Validate handle. */ if (handle < MAX_OUTSTANDING_COMMANDS) sp = req->outstanding_cmds[handle]; else sp = NULL; if (sp) { /* Free outstanding command slot. */ req->outstanding_cmds[handle] = NULL; /* Bad payload or header */ if (pkt->entry_status & (RF_INV_E_ORDER | RF_INV_E_COUNT | RF_INV_E_PARAM | RF_INV_E_TYPE)) { sp->cmd->result = DID_ERROR << 16; } else if (pkt->entry_status & RF_BUSY) { sp->cmd->result = DID_BUS_BUSY << 16; } else { sp->cmd->result = DID_ERROR << 16; } qla2x00_sp_compl(ha, sp); } else if (pkt->entry_type == COMMAND_A64_TYPE || pkt->entry_type == COMMAND_TYPE || pkt->entry_type == COMMAND_TYPE_7) { DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n", vha->host_no)); qla_printk(KERN_WARNING, ha, "Error entry - invalid handle\n"); 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; uint16_t __iomem *wptr; struct qla_hw_data *ha = vha->hw; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; /* Load return mailbox registers. */ ha->flags.mbox_int = 1; ha->mailbox_out[0] = mb0; wptr = (uint16_t __iomem *)®->mailbox1; for (cnt = 1; cnt < ha->mbx_count; cnt++) { ha->mailbox_out[cnt] = RD_REG_WORD(wptr); wptr++; } if (ha->mcp) { DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n", __func__, vha->host_no, ha->mcp->mb[0])); } else { DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n", __func__, vha->host_no)); } } /** * 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) { DEBUG3(printk(KERN_INFO "scsi(%ld): Process error entry.\n", vha->host_no)); qla2x00_error_entry(vha, rsp, (sts_entry_t *) 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_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 TSK_MGMT_IOCB_TYPE: qla24xx_tm_iocb_entry(vha, rsp->req, (struct tsk_mgmt_entry *)pkt); break; case CT_IOCB_TYPE: qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE); clear_bit(MBX_INTERRUPT, &vha->hw->mbx_cmd_flags); break; case ELS_IOCB_TYPE: qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE); break; default: /* Type Not Supported. */ DEBUG4(printk(KERN_WARNING "scsi(%ld): Received unknown response pkt type %x " "entry status=%x.\n", vha->host_no, pkt->entry_type, pkt->entry_status)); break; } ((response_t *)pkt)->signature = RESPONSE_PROCESSED; wmb(); } /* Adjust ring index */ if (IS_QLA82XX(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)) 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; 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) qla_printk(KERN_INFO, ha, "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 ISP63xx. * @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[4]; struct rsp_que *rsp; unsigned long flags; rsp = (struct rsp_que *) dev_id; if (!rsp) { printk(KERN_INFO "%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 (stat & HSRX_RISC_PAUSED) { if (unlikely(pci_channel_offline(ha->pdev))) break; hccr = RD_REG_DWORD(®->hccr); qla_printk(KERN_INFO, ha, "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 0x1: case 0x2: case 0x10: case 0x11: qla24xx_mbx_completion(vha, MSW(stat)); status |= MBX_INTERRUPT; break; case 0x12: 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 0x13: case 0x14: qla24xx_process_response_queue(vha, rsp); break; default: DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " "(%d).\n", vha->host_no, stat & 0xff)); break; } WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); RD_REG_DWORD_RELAXED(®->hccr); } spin_unlock_irqrestore(&ha->hardware_lock, flags); if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && (status & MBX_INTERRUPT) && ha->flags.mbox_int) { set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); complete(&ha->mbx_intr_comp); } 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; rsp = (struct rsp_que *) dev_id; if (!rsp) { printk(KERN_INFO "%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); 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); } 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; struct rsp_que *rsp; struct device_reg_24xx __iomem *reg; unsigned long flags; rsp = (struct rsp_que *) dev_id; if (!rsp) { printk(KERN_INFO "%s(): NULL response queue pointer\n", __func__); return IRQ_NONE; } ha = rsp->hw; /* Clear the interrupt, if enabled, for this response queue */ if (rsp->options & ~BIT_6) { reg = &ha->iobase->isp24; spin_lock_irqsave(&ha->hardware_lock, flags); WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); RD_REG_DWORD_RELAXED(®->hccr); spin_unlock_irqrestore(&ha->hardware_lock, flags); } queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work); 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[4]; unsigned long flags; rsp = (struct rsp_que *) dev_id; if (!rsp) { DEBUG(printk( "%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 (stat & HSRX_RISC_PAUSED) { if (unlikely(pci_channel_offline(ha->pdev))) break; hccr = RD_REG_DWORD(®->hccr); qla_printk(KERN_INFO, ha, "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 0x1: case 0x2: case 0x10: case 0x11: qla24xx_mbx_completion(vha, MSW(stat)); status |= MBX_INTERRUPT; break; case 0x12: 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 0x13: case 0x14: qla24xx_process_response_queue(vha, rsp); break; default: DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " "(%d).\n", vha->host_no, stat & 0xff)); break; } WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); } while (0); spin_unlock_irqrestore(&ha->hardware_lock, flags); if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && (status & MBX_INTERRUPT) && ha->flags.mbox_int) { set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); complete(&ha->mbx_intr_comp); } 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 void qla24xx_disable_msix(struct qla_hw_data *ha) { int i; struct qla_msix_entry *qentry; 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; } static int qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp) { #define MIN_MSIX_COUNT 2 int i, ret; struct msix_entry *entries; struct qla_msix_entry *qentry; entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count, GFP_KERNEL); if (!entries) return -ENOMEM; for (i = 0; i < ha->msix_count; i++) entries[i].entry = i; ret = pci_enable_msix(ha->pdev, entries, ha->msix_count); if (ret) { if (ret < MIN_MSIX_COUNT) goto msix_failed; qla_printk(KERN_WARNING, ha, "MSI-X: Failed to enable support -- %d/%d\n" " Retry with %d vectors\n", ha->msix_count, ret, ret); ha->msix_count = ret; ret = pci_enable_msix(ha->pdev, entries, ha->msix_count); if (ret) { msix_failed: qla_printk(KERN_WARNING, ha, "MSI-X: Failed to enable" " support, giving up -- %d/%d\n", ha->msix_count, ret); goto msix_out; } 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) { 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_QLA82XX(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) { qla_printk(KERN_WARNING, ha, "MSI-X: Unable to register handler -- %x/%d.\n", qentry->vector, ret); qla24xx_disable_msix(ha); ha->mqenable = 0; goto msix_out; } qentry->have_irq = 1; qentry->rsp = rsp; rsp->msix = qentry; } /* Enable MSI-X vector for response queue update for queue 0 */ if (ha->mqiobase && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1)) ha->mqenable = 1; msix_out: kfree(entries); return ret; } int qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp) { int ret; device_reg_t __iomem *reg = ha->iobase; /* If possible, enable MSI-X. */ if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) && !IS_QLA8XXX_TYPE(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)) { DEBUG2(qla_printk(KERN_WARNING, ha, "MSI-X: Unsupported ISP2432 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 || !QLA_MSIX_FW_MODE_1(ha->fw_attributes))) { DEBUG2(qla_printk(KERN_WARNING, ha, "MSI-X: Unsupported ISP2432 (0x%X, 0x%X).\n", ha->pdev->revision, ha->fw_attributes)); goto skip_msix; } ret = qla24xx_enable_msix(ha, rsp); if (!ret) { DEBUG2(qla_printk(KERN_INFO, ha, "MSI-X: Enabled (0x%X, 0x%X).\n", ha->chip_revision, ha->fw_attributes)); goto clear_risc_ints; } qla_printk(KERN_WARNING, ha, "MSI-X: Falling back-to MSI mode -- %d.\n", ret); skip_msix: if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) && !IS_QLA8001(ha)) goto skip_msi; ret = pci_enable_msi(ha->pdev); if (!ret) { DEBUG2(qla_printk(KERN_INFO, ha, "MSI: Enabled.\n")); ha->flags.msi_enabled = 1; } else qla_printk(KERN_WARNING, ha, "MSI-X: Falling back-to INTa mode -- %d.\n", ret); skip_msi: ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler, ha->flags.msi_enabled ? 0 : IRQF_SHARED, QLA2XXX_DRIVER_NAME, rsp); if (ret) { qla_printk(KERN_WARNING, ha, "Failed to reserve interrupt %d already in use.\n", ha->pdev->irq); goto fail; } clear_risc_ints: /* * FIXME: Noted that 8014s were being dropped during NK testing. * Timing deltas during MSI-X/INTa transitions? */ if (IS_QLA81XX(ha) || IS_QLA82XX(ha)) goto fail; spin_lock_irq(&ha->hardware_lock); if (IS_FWI2_CAPABLE(ha)) { WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_HOST_INT); WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_RISC_INT); } else { WRT_REG_WORD(®->isp.semaphore, 0); WRT_REG_WORD(®->isp.hccr, HCCR_CLR_RISC_INT); WRT_REG_WORD(®->isp.hccr, HCCR_CLR_HOST_INT); } 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 = 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; int ret; ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp); if (ret) { qla_printk(KERN_WARNING, ha, "MSI-X: Unable to register handler -- %x/%d.\n", msix->vector, ret); return ret; } msix->have_irq = 1; msix->rsp = rsp; return ret; }