X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fscsi%2Fqla2xxx%2Fqla_isr.c;h=42aa7a7c1a7313795fc4f30a9362f14740e7ce54;hb=987b0145d94eecf292d8b301228356f44611ab7c;hp=f9284fd879d7ebb2fb381697c9408b0943ab9d18;hpb=48ed9e9ed158dedf557fbe4b9e8b09f109e2a79a;p=linux-2.6.git diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index f9284fd87..42aa7a7c1 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -1,36 +1,23 @@ /* - * QLOGIC LINUX SOFTWARE - * - * QLogic ISP2x00 device driver for Linux 2.6.x - * Copyright (C) 2003-2004 QLogic Corporation - * (www.qlogic.com) - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2, or (at your option) any - * later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. + * QLogic Fibre Channel HBA Driver + * Copyright (c) 2003-2005 QLogic Corporation * + * See LICENSE.qla2xxx for copyright and licensing details. */ #include "qla_def.h" static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t); -static void qla2x00_async_event(scsi_qla_host_t *, uint32_t); +static void qla2x00_async_event(scsi_qla_host_t *, uint16_t *); static void qla2x00_process_completed_request(struct scsi_qla_host *, uint32_t); -void qla2x00_process_response_queue(struct scsi_qla_host *); -static void qla2x00_status_entry(scsi_qla_host_t *, sts_entry_t *); +static void qla2x00_status_entry(scsi_qla_host_t *, void *); static void qla2x00_status_cont_entry(scsi_qla_host_t *, sts_cont_entry_t *); static void qla2x00_error_entry(scsi_qla_host_t *, sts_entry_t *); static void qla2x00_ms_entry(scsi_qla_host_t *, ms_iocb_entry_t *); -static int qla2x00_check_sense(struct scsi_cmnd *cp, os_lun_t *); +static void qla24xx_ms_entry(scsi_qla_host_t *, struct ct_entry_24xx *); /** - * qla2x00_intr_handler() - Process interrupts for the ISP. + * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200. * @irq: * @dev_id: SCSI driver HA context * @regs: @@ -40,20 +27,14 @@ static int qla2x00_check_sense(struct scsi_cmnd *cp, os_lun_t *); * Returns handled flag. */ irqreturn_t -qla2x00_intr_handler(int irq, void *dev_id, struct pt_regs *regs) +qla2100_intr_handler(int irq, void *dev_id, struct pt_regs *regs) { scsi_qla_host_t *ha; - device_reg_t *reg; - uint32_t mbx; - int status = 0; - unsigned long flags = 0; - unsigned long mbx_flags = 0; - unsigned long intr_iter; - uint32_t stat; - uint16_t hccr; - - /* Don't loop forever, interrupt are OFF */ - intr_iter = 50; + struct device_reg_2xxx __iomem *reg; + int status; + unsigned long flags; + unsigned long iter; + uint16_t mb[4]; ha = (scsi_qla_host_t *) dev_id; if (!ha) { @@ -62,156 +43,166 @@ qla2x00_intr_handler(int irq, void *dev_id, struct pt_regs *regs) return (IRQ_NONE); } - reg = ha->iobase; + reg = &ha->iobase->isp; + status = 0; spin_lock_irqsave(&ha->hardware_lock, flags); - - for (;;) { - /* Relax CPU! */ - if (!(intr_iter--)) + for (iter = 50; iter--; ) { + if ((RD_REG_WORD(®->istatus) & ISR_RISC_INT) == 0) break; - if (IS_QLA2100(ha) || IS_QLA2200(ha)) { - 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. */ - mbx = RD_MAILBOX_REG(ha, reg, 0); - if (mbx > 0x3fff && mbx < 0x8000) { - qla2x00_mbx_completion(ha, - (uint16_t)mbx); - status |= MBX_INTERRUPT; - } else if (mbx > 0x7fff && mbx < 0xc000) { - qla2x00_async_event(ha, mbx); - } else { - /*EMPTY*/ - DEBUG2(printk("scsi(%ld): Unrecognized " - "interrupt type (%d)\n", - ha->host_no, mbx)); - } - /* Release mailbox registers. */ - WRT_REG_WORD(®->semaphore, 0); - /* Workaround for ISP2100 chip. */ - if (IS_QLA2100(ha)) - RD_REG_WORD(®->semaphore); - } else { - qla2x00_process_response_queue(ha); - - WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); - RD_REG_WORD(®->hccr); - } - } else /* IS_QLA23XX(ha) */ { - stat = RD_REG_DWORD(®->u.isp2300.host_status); - if (stat & HSR_RISC_PAUSED) { - hccr = RD_REG_WORD(®->hccr); - if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8)) - qla_printk(KERN_INFO, ha, - "Parity error -- HCCR=%x.\n", hccr); - else - qla_printk(KERN_INFO, ha, - "RISC paused -- HCCR=%x\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); - set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); - break; - } else if ((stat & HSR_RISC_INT) == 0) - break; + if (RD_REG_WORD(®->semaphore) & BIT_0) { + WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); + RD_REG_WORD(®->hccr); - mbx = MSW(stat); - switch (stat & 0xff) { - case 0x13: - qla2x00_process_response_queue(ha); - break; - case 0x1: - case 0x2: - case 0x10: - case 0x11: - qla2x00_mbx_completion(ha, (uint16_t)mbx); + /* Get mailbox data. */ + mb[0] = RD_MAILBOX_REG(ha, reg, 0); + if (mb[0] > 0x3fff && mb[0] < 0x8000) { + qla2x00_mbx_completion(ha, mb[0]); status |= MBX_INTERRUPT; - - /* Release mailbox registers. */ - WRT_REG_WORD(®->semaphore, 0); - break; - case 0x12: - qla2x00_async_event(ha, mbx); - break; - case 0x15: - mbx = mbx << 16 | MBA_CMPLT_1_16BIT; - qla2x00_async_event(ha, mbx); - break; - case 0x16: - mbx = mbx << 16 | MBA_SCSI_COMPLETION; - qla2x00_async_event(ha, mbx); - break; - default: + } 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(ha, mb); + } else { + /*EMPTY*/ DEBUG2(printk("scsi(%ld): Unrecognized " - "interrupt type (%d)\n", - ha->host_no, stat & 0xff)); - break; + "interrupt type (%d).\n", + ha->host_no, mb[0])); } + /* Release mailbox registers. */ + WRT_REG_WORD(®->semaphore, 0); + RD_REG_WORD(®->semaphore); + } else { + qla2x00_process_response_queue(ha); + WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); - RD_REG_WORD_RELAXED(®->hccr); + RD_REG_WORD(®->hccr); } } - spin_unlock_irqrestore(&ha->hardware_lock, flags); - qla2x00_next(ha); - ha->last_irq_cpu = smp_processor_id(); - ha->total_isr_cnt++; - if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && (status & MBX_INTERRUPT) && ha->flags.mbox_int) { + spin_lock_irqsave(&ha->mbx_reg_lock, flags); - /* There was a mailbox completion */ - DEBUG3(printk("%s(%ld): Going to get mbx reg lock.\n", - __func__, ha->host_no)); + set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); + up(&ha->mbx_intr_sem); - spin_lock_irqsave(&ha->mbx_reg_lock, mbx_flags); + spin_unlock_irqrestore(&ha->mbx_reg_lock, flags); + } - if (ha->mcp == NULL) { - DEBUG3(printk("%s(%ld): Error mbx pointer.\n", - __func__, ha->host_no)); - } else { - DEBUG3(printk("%s(%ld): Going to set mbx intr flags. " - "cmd=%x.\n", - __func__, ha->host_no, ha->mcp->mb[0])); - } - set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); + return (IRQ_HANDLED); +} - DEBUG3(printk("%s(%ld): Going to wake up mbx function for " - "completion.\n", - __func__, ha->host_no)); +/** + * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx. + * @irq: + * @dev_id: SCSI driver HA context + * @regs: + * + * Called by system whenever the host adapter generates an interrupt. + * + * Returns handled flag. + */ +irqreturn_t +qla2300_intr_handler(int irq, void *dev_id, struct pt_regs *regs) +{ + scsi_qla_host_t *ha; + struct device_reg_2xxx __iomem *reg; + int status; + unsigned long flags; + unsigned long iter; + uint32_t stat; + uint16_t hccr; + uint16_t mb[4]; - up(&ha->mbx_intr_sem); + ha = (scsi_qla_host_t *) dev_id; + if (!ha) { + printk(KERN_INFO + "%s(): NULL host pointer\n", __func__); + return (IRQ_NONE); + } - DEBUG3(printk("%s(%ld): Going to release mbx reg lock.\n", - __func__, ha->host_no)); + reg = &ha->iobase->isp; + status = 0; - spin_unlock_irqrestore(&ha->mbx_reg_lock, mbx_flags); + spin_lock_irqsave(&ha->hardware_lock, flags); + for (iter = 50; iter--; ) { + stat = RD_REG_DWORD(®->u.isp2300.host_status); + if (stat & HSR_RISC_PAUSED) { + hccr = RD_REG_WORD(®->hccr); + if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8)) + qla_printk(KERN_INFO, ha, + "Parity error -- HCCR=%x.\n", hccr); + else + qla_printk(KERN_INFO, ha, + "RISC paused -- HCCR=%x.\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); + set_bit(ISP_ABORT_NEEDED, &ha->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(ha, 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(ha, mb); + break; + case 0x13: + qla2x00_process_response_queue(ha); + break; + case 0x15: + mb[0] = MBA_CMPLT_1_16BIT; + mb[1] = MSW(stat); + qla2x00_async_event(ha, mb); + break; + case 0x16: + mb[0] = MBA_SCSI_COMPLETION; + mb[1] = MSW(stat); + mb[2] = RD_MAILBOX_REG(ha, reg, 2); + qla2x00_async_event(ha, mb); + break; + default: + DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " + "(%d).\n", + ha->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 (!list_empty(&ha->done_queue)) - qla2x00_done(ha); + if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && + (status & MBX_INTERRUPT) && ha->flags.mbox_int) { + spin_lock_irqsave(&ha->mbx_reg_lock, flags); - /* Wakeup the DPC routine */ - if ((!ha->flags.mbox_busy && - (test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) || - test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) || - test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))) && - ha->dpc_wait && !ha->dpc_active) { + set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); + up(&ha->mbx_intr_sem); - up(ha->dpc_wait); + spin_unlock_irqrestore(&ha->mbx_reg_lock, flags); } return (IRQ_HANDLED); @@ -226,22 +217,22 @@ static void qla2x00_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0) { uint16_t cnt; - uint16_t *wptr; - device_reg_t *reg = ha->iobase; + uint16_t __iomem *wptr; + 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 *)MAILBOX_REG(ha, reg, 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 *)MAILBOX_REG(ha, reg, 8); + 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++; } @@ -257,78 +248,65 @@ qla2x00_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0) /** * qla2x00_async_event() - Process aynchronous events. * @ha: SCSI driver HA context - * @mb0: Mailbox0 register + * @mb: Mailbox registers (0 - 3) */ static void -qla2x00_async_event(scsi_qla_host_t *ha, uint32_t mbx) +qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb) { - static char *link_speeds[5] = { "1", "2", "4", "?", "10" }; +#define LS_UNKNOWN 2 + static char *link_speeds[5] = { "1", "2", "?", "4", "10" }; char *link_speed; - uint16_t mb[4]; uint16_t handle_cnt; uint16_t cnt; uint32_t handles[5]; - device_reg_t *reg = ha->iobase; + struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; uint32_t rscn_entry, host_pid; uint8_t rscn_queue_index; /* Setup to process RIO completion. */ handle_cnt = 0; - mb[0] = LSW(mbx); switch (mb[0]) { case MBA_SCSI_COMPLETION: - if (IS_QLA2100(ha) || IS_QLA2200(ha)) - handles[0] = le32_to_cpu( - ((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) | - RD_MAILBOX_REG(ha, reg, 1)); - else - handles[0] = le32_to_cpu( - ((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) | - MSW(mbx)); + handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1])); handle_cnt = 1; break; case MBA_CMPLT_1_16BIT: - if (IS_QLA2100(ha) || IS_QLA2200(ha)) - handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1); - else - handles[0] = MSW(mbx); + handles[0] = mb[1]; handle_cnt = 1; mb[0] = MBA_SCSI_COMPLETION; break; case MBA_CMPLT_2_16BIT: - handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1); - handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2); + handles[0] = mb[1]; + handles[1] = mb[2]; handle_cnt = 2; mb[0] = MBA_SCSI_COMPLETION; break; case MBA_CMPLT_3_16BIT: - handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1); - handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2); - handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3); + 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] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1); - handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2); - handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3); + 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] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1); - handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2); - handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3); + 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)(RD_MAILBOX_REG(ha, reg, 2) << 16)) | - RD_MAILBOX_REG(ha, reg, 1)); + 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)); @@ -363,11 +341,23 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint32_t mbx) "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n", mb[1], mb[2], mb[3]); - if (IS_QLA2100(ha) || IS_QLA2200(ha)) - qla2100_fw_dump(ha, 1); - else - qla2300_fw_dump(ha, 1); - set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); + ha->isp_ops.fw_dump(ha, 1); + + if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) { + if (mb[1] == 0 && mb[2] == 0) { + qla_printk(KERN_ERR, ha, + "Unrecoverable Hardware Error: adapter " + "marked OFFLINE!\n"); + ha->flags.online = 0; + } else + set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); + } else if (mb[1] == 0) { + qla_printk(KERN_INFO, ha, + "Unrecoverable Hardware Error: adapter marked " + "OFFLINE!\n"); + ha->flags.online = 0; + } else + set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); break; case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ @@ -392,8 +382,6 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint32_t mbx) break; case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */ - mb[1] = RD_MAILBOX_REG(ha, reg, 1); - DEBUG2(printk("scsi(%ld): LIP occured (%x).\n", ha->host_no, mb[1])); qla_printk(KERN_INFO, ha, "LIP occured (%x).\n", mb[1]); @@ -401,7 +389,7 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint32_t mbx) if (atomic_read(&ha->loop_state) != LOOP_DOWN) { atomic_set(&ha->loop_state, LOOP_DOWN); atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); - qla2x00_mark_all_devices_lost(ha); + qla2x00_mark_all_devices_lost(ha, 1); } set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags); @@ -411,17 +399,14 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint32_t mbx) /* Update AEN queue. */ qla2x00_enqueue_aen(ha, MBA_LIP_OCCURRED, NULL); - ha->total_lip_cnt++; break; case MBA_LOOP_UP: /* Loop Up Event */ - mb[1] = RD_MAILBOX_REG(ha, reg, 1); - - ha->link_data_rate = 0; if (IS_QLA2100(ha) || IS_QLA2200(ha)) { link_speed = link_speeds[0]; + ha->link_data_rate = LDR_1GB; } else { - link_speed = link_speeds[3]; + link_speed = link_speeds[LS_UNKNOWN]; if (mb[1] < 5) link_speed = link_speeds[mb[1]]; ha->link_data_rate = mb[1]; @@ -439,27 +424,27 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint32_t mbx) break; case MBA_LOOP_DOWN: /* Loop Down Event */ - DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN.\n", - ha->host_no)); - qla_printk(KERN_INFO, ha, "LOOP DOWN detected.\n"); + DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN (%x).\n", + ha->host_no, mb[1])); + qla_printk(KERN_INFO, ha, "LOOP DOWN detected (%x).\n", mb[1]); if (atomic_read(&ha->loop_state) != LOOP_DOWN) { atomic_set(&ha->loop_state, LOOP_DOWN); atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); ha->device_flags |= DFLG_NO_CABLE; - qla2x00_mark_all_devices_lost(ha); + qla2x00_mark_all_devices_lost(ha, 1); } ha->flags.management_server_logged_in = 0; - ha->link_data_rate = 0; + ha->link_data_rate = LDR_UNKNOWN; + if (ql2xfdmienable) + set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags); /* Update AEN queue. */ qla2x00_enqueue_aen(ha, MBA_LOOP_DOWN, NULL); break; case MBA_LIP_RESET: /* LIP reset occurred */ - mb[1] = RD_MAILBOX_REG(ha, reg, 1); - DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n", ha->host_no, mb[1])); qla_printk(KERN_INFO, ha, @@ -468,7 +453,7 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint32_t mbx) if (atomic_read(&ha->loop_state) != LOOP_DOWN) { atomic_set(&ha->loop_state, LOOP_DOWN); atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); - qla2x00_mark_all_devices_lost(ha); + qla2x00_mark_all_devices_lost(ha, 1); } set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); @@ -479,7 +464,6 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint32_t mbx) /* Update AEN queue. */ qla2x00_enqueue_aen(ha, MBA_LIP_RESET, NULL); - ha->total_lip_cnt++; break; case MBA_POINT_TO_POINT: /* Point-to-Point */ @@ -498,7 +482,7 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint32_t mbx) if (!atomic_read(&ha->loop_down_timer)) atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); - qla2x00_mark_all_devices_lost(ha); + qla2x00_mark_all_devices_lost(ha, 1); } if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) { @@ -511,8 +495,6 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint32_t mbx) if (IS_QLA2100(ha)) break; - mb[1] = RD_MAILBOX_REG(ha, reg, 1); - DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection " "received.\n", ha->host_no)); @@ -520,11 +502,11 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint32_t mbx) "Configuration change detected: value=%x.\n", mb[1]); if (atomic_read(&ha->loop_state) != LOOP_DOWN) { - atomic_set(&ha->loop_state, LOOP_DOWN); + atomic_set(&ha->loop_state, LOOP_DOWN); if (!atomic_read(&ha->loop_down_timer)) atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); - qla2x00_mark_all_devices_lost(ha); + qla2x00_mark_all_devices_lost(ha, 1); } set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); @@ -532,16 +514,15 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint32_t mbx) break; case MBA_PORT_UPDATE: /* Port database update */ - mb[1] = RD_MAILBOX_REG(ha, reg, 1); - mb[2] = RD_MAILBOX_REG(ha, reg, 2); - /* * If a single remote port just logged into (or logged out of) * us, create a new entry in our rscn fcports list and handle * the event like an RSCN. */ - if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA6312(ha) && - !IS_QLA6322(ha) && ha->flags.init_done && mb[1] != 0xffff && + if (ql2xprocessrscn && + !IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA6312(ha) && + !IS_QLA6322(ha) && !IS_QLA24XX(ha) && !IS_QLA25XX(ha) && + ha->flags.init_done && mb[1] != 0xffff && ((ha->operating_mode == P2P && mb[1] != 0) || (ha->operating_mode != P2P && mb[1] != SNS_FIRST_LOOP_ID)) && (mb[2] == 6 || mb[2] == 7)) { @@ -552,8 +533,9 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint32_t mbx) rscn_fcport = qla2x00_alloc_rscn_fcport(ha, GFP_ATOMIC); if (rscn_fcport) { DEBUG14(printk("scsi(%ld): Port Update -- " - "creating RSCN fcport %p for login.\n", - ha->host_no, rscn_fcport)); + "creating RSCN fcport %p for %x/%x/%x.\n", + ha->host_no, rscn_fcport, mb[1], mb[2], + mb[3])); rscn_fcport->loop_id = mb[1]; rscn_fcport->d_id.b24 = INVALID_PORT_ID; @@ -578,25 +560,27 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint32_t mbx) * event etc. earlier indicating loop is down) then process * it. Otherwise ignore it and Wait for RSCN to come in. */ - if (atomic_read(&ha->loop_state) != LOOP_DOWN) { + atomic_set(&ha->loop_down_timer, 0); + if (atomic_read(&ha->loop_state) != LOOP_DOWN && + atomic_read(&ha->loop_state) != LOOP_DEAD) { DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE " - "ignored.\n", ha->host_no)); + "ignored %04x/%04x/%04x.\n", ha->host_no, mb[1], + mb[2], mb[3])); break; } DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n", ha->host_no)); DEBUG(printk(KERN_INFO - "scsi(%ld): Port database changed %04x %04x.\n", - ha->host_no, mb[1], mb[2])); + "scsi(%ld): Port database changed %04x %04x %04x.\n", + ha->host_no, mb[1], mb[2], mb[3])); /* * Mark all devices as missing so we will login again. */ atomic_set(&ha->loop_state, LOOP_UP); - atomic_set(&ha->loop_down_timer, 0); - qla2x00_mark_all_devices_lost(ha); + qla2x00_mark_all_devices_lost(ha, 1); ha->flags.rscn_queue_overflow = 1; @@ -608,9 +592,6 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint32_t mbx) break; case MBA_RSCN_UPDATE: /* State Change Registration */ - mb[1] = RD_MAILBOX_REG(ha, reg, 1); - mb[2] = RD_MAILBOX_REG(ha, reg, 2); - DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n", ha->host_no)); DEBUG(printk(KERN_INFO @@ -657,7 +638,15 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint32_t mbx) "scsi(%ld): [R|Z]IO update completion.\n", ha->host_no)); - qla2x00_process_response_queue(ha); + if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) + qla24xx_process_response_queue(ha); + else + qla2x00_process_response_queue(ha); + break; + + case MBA_DISCARD_RND_FRAME: + DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x " + "%04x.\n", ha->host_no, mb[1], mb[2], mb[3])); break; } } @@ -688,16 +677,12 @@ qla2x00_process_completed_request(struct scsi_qla_host *ha, uint32_t index) /* Free outstanding command slot. */ ha->outstanding_cmds[index] = NULL; - if (ha->actthreads) - ha->actthreads--; - sp->lun_queue->out_cnt--; CMD_COMPL_STATUS(sp->cmd) = 0L; CMD_SCSI_STATUS(sp->cmd) = 0L; /* Save ISP completion status */ sp->cmd->result = DID_OK << 16; - sp->fo_retry_cnt = 0; - add_to_done_queue(ha, sp); + qla2x00_sp_compl(ha, sp); } else { DEBUG2(printk("scsi(%ld): Invalid ISP SCSI completion handle\n", ha->host_no)); @@ -715,7 +700,7 @@ qla2x00_process_completed_request(struct scsi_qla_host *ha, uint32_t index) void qla2x00_process_response_queue(struct scsi_qla_host *ha) { - device_reg_t *reg = ha->iobase; + struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; sts_entry_t *pkt; uint16_t handle_cnt; uint16_t cnt; @@ -809,34 +794,41 @@ qla2x00_process_response_queue(struct scsi_qla_host *ha) * @pkt: Entry pointer */ static void -qla2x00_status_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) +qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) { - int ret; - unsigned b, t, l; srb_t *sp; - os_lun_t *lq; - os_tgt_t *tq; 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; uint8_t lscsi_status; int32_t resid; - uint8_t sense_sz = 0; - uint16_t rsp_info_len; + uint32_t sense_len, rsp_info_len, resid_len; + uint8_t *rsp_info, *sense_data; + + sts = (sts_entry_t *) pkt; + sts24 = (struct sts_entry_24xx *) pkt; + if (IS_QLA24XX(ha) || IS_QLA25XX(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; + } /* Fast path completion. */ - if (le16_to_cpu(pkt->comp_status) == CS_COMPLETE && - (le16_to_cpu(pkt->scsi_status) & SS_MASK) == 0) { - qla2x00_process_completed_request(ha, pkt->handle); + if (comp_status == CS_COMPLETE && scsi_status == 0) { + qla2x00_process_completed_request(ha, sts->handle); return; } /* Validate handle. */ - if (pkt->handle < MAX_OUTSTANDING_COMMANDS) { - sp = ha->outstanding_cmds[pkt->handle]; - ha->outstanding_cmds[pkt->handle] = NULL; + if (sts->handle < MAX_OUTSTANDING_COMMANDS) { + sp = ha->outstanding_cmds[sts->handle]; + ha->outstanding_cmds[sts->handle] = NULL; } else sp = NULL; @@ -846,7 +838,7 @@ qla2x00_status_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) qla_printk(KERN_WARNING, ha, "Status Entry invalid handle.\n"); set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); - if (ha->dpc_wait && !ha->dpc_active) + if (ha->dpc_wait && !ha->dpc_active) up(ha->dpc_wait); return; @@ -855,80 +847,52 @@ qla2x00_status_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) if (cp == NULL) { DEBUG2(printk("scsi(%ld): Command already returned back to OS " "pkt->handle=%d sp=%p sp->state:%d\n", - ha->host_no, pkt->handle, sp, sp->state)); + ha->host_no, sts->handle, sp, sp->state)); qla_printk(KERN_WARNING, ha, "Command is NULL: already returned to OS (sp=%p)\n", sp); return; } - if (ha->actthreads) - ha->actthreads--; - - if (sp->lun_queue == NULL) { - DEBUG2(printk("scsi(%ld): Status Entry invalid lun pointer.\n", - ha->host_no)); - qla_printk(KERN_WARNING, ha, - "Status Entry invalid lun pointer.\n"); - - set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); - if (ha->dpc_wait && !ha->dpc_active) - up(ha->dpc_wait); - - return; - } - - sp->lun_queue->out_cnt--; - - comp_status = le16_to_cpu(pkt->comp_status); - /* Mask of reserved bits 12-15, before we examine the scsi status */ - scsi_status = le16_to_cpu(pkt->scsi_status) & SS_MASK; - lscsi_status = scsi_status & STATUS_MASK; - - CMD_ENTRY_STATUS(cp) = pkt->entry_status; + lscsi_status = scsi_status & STATUS_MASK; + CMD_ENTRY_STATUS(cp) = sts->entry_status; CMD_COMPL_STATUS(cp) = comp_status; CMD_SCSI_STATUS(cp) = scsi_status; - /* Generate LU queue on cntrl, target, LUN */ - b = cp->device->channel; - t = cp->device->id; - l = cp->device->lun, - - tq = sp->tgt_queue; - lq = sp->lun_queue; - - /* - * If loop is in transient state Report DID_BUS_BUSY - */ - if ((comp_status != CS_COMPLETE || scsi_status != 0)) { - if (!(sp->flags & (SRB_IOCTL | SRB_TAPE)) && - (atomic_read(&ha->loop_down_timer) || - atomic_read(&ha->loop_state) != LOOP_READY)) { - - DEBUG2(printk("scsi(%ld:%d:%d:%d): Loop Not Ready - " - "pid=%lx.\n", - ha->host_no, b, t, l, cp->serial_number)); + fcport = sp->fcport; - qla2x00_extend_timeout(cp, EXTEND_CMD_TIMEOUT); - add_to_retry_queue(ha, sp); - return; - } + sense_len = rsp_info_len = resid_len = 0; + if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) { + sense_len = le32_to_cpu(sts24->sense_len); + rsp_info_len = le32_to_cpu(sts24->rsp_data_len); + resid_len = le32_to_cpu(sts24->rsp_residual_count); + rsp_info = sts24->data; + sense_data = sts24->data; + host_to_fcp_swap(sts24->data, sizeof(sts24->data)); + } else { + sense_len = le16_to_cpu(sts->req_sense_length); + 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; } /* Check for any FCP transport errors. */ if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) { - rsp_info_len = le16_to_cpu(pkt->rsp_info_len); - if (rsp_info_len > 3 && pkt->rsp_info[3]) { + /* Sense data lies beyond any FCP RESPONSE data. */ + if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) + sense_data += rsp_info_len; + if (rsp_info_len > 3 && rsp_info[3]) { DEBUG2(printk("scsi(%ld:%d:%d:%d) FCP I/O protocol " "failure (%x/%02x%02x%02x%02x%02x%02x%02x%02x)..." - "retrying command\n", ha->host_no, b, t, l, - rsp_info_len, pkt->rsp_info[0], pkt->rsp_info[1], - pkt->rsp_info[2], pkt->rsp_info[3], - pkt->rsp_info[4], pkt->rsp_info[5], - pkt->rsp_info[6], pkt->rsp_info[7])); + "retrying command\n", ha->host_no, + cp->device->channel, cp->device->id, + cp->device->lun, rsp_info_len, rsp_info[0], + rsp_info[1], rsp_info[2], rsp_info[3], rsp_info[4], + rsp_info[5], rsp_info[6], rsp_info[7])); cp->result = DID_BUS_BUSY << 16; - add_to_done_queue(ha, sp); + qla2x00_sp_compl(ha, sp); return; } } @@ -943,87 +907,80 @@ qla2x00_status_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) break; } if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) { - resid = le32_to_cpu(pkt->residual_length); + resid = resid_len; cp->resid = resid; CMD_RESID_LEN(cp) = resid; - } - if (lscsi_status == SS_BUSY_CONDITION) { - cp->result = DID_BUS_BUSY << 16 | lscsi_status; - break; - } + if (!lscsi_status && + ((unsigned)(cp->request_bufflen - resid) < + cp->underflow)) { + qla_printk(KERN_INFO, ha, + "scsi(%ld:%d:%d:%d): Mid-layer underflow " + "detected (%x of %x bytes)...returning " + "error status.\n", ha->host_no, + cp->device->channel, cp->device->id, + cp->device->lun, resid, + cp->request_bufflen); + + cp->result = DID_ERROR << 16; + break; + } + } cp->result = DID_OK << 16 | lscsi_status; if (lscsi_status != SS_CHECK_CONDITION) break; - /* - * Copy Sense Data into sense buffer - */ + /* Copy Sense Data into sense buffer. */ memset(cp->sense_buffer, 0, sizeof(cp->sense_buffer)); if (!(scsi_status & SS_SENSE_LEN_VALID)) break; - if (le16_to_cpu(pkt->req_sense_length) < - sizeof(cp->sense_buffer)) - sense_sz = le16_to_cpu(pkt->req_sense_length); - else - sense_sz = sizeof(cp->sense_buffer) - 1; + if (sense_len >= sizeof(cp->sense_buffer)) + sense_len = sizeof(cp->sense_buffer); - CMD_ACTUAL_SNSLEN(cp) = sense_sz; - sp->request_sense_length = sense_sz; + CMD_ACTUAL_SNSLEN(cp) = sense_len; + sp->request_sense_length = sense_len; sp->request_sense_ptr = cp->sense_buffer; if (sp->request_sense_length > 32) - sense_sz = 32; + sense_len = 32; - memcpy(cp->sense_buffer, pkt->req_sense_data, sense_sz); + memcpy(cp->sense_buffer, sense_data, sense_len); - sp->request_sense_ptr += sense_sz; - sp->request_sense_length -= sense_sz; + sp->request_sense_ptr += sense_len; + sp->request_sense_length -= sense_len; if (sp->request_sense_length != 0) ha->status_srb = sp; - if (!(sp->flags & (SRB_IOCTL | SRB_TAPE)) && - qla2x00_check_sense(cp, lq) == QLA_SUCCESS) { - /* Throw away status_cont if any */ - ha->status_srb = NULL; - add_to_scsi_retry_queue(ha, sp); - return; - } - DEBUG5(printk("%s(): Check condition Sense data, " - "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n", - __func__, ha->host_no, b, t, l, cp, - cp->serial_number)); - if (sense_sz) + "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n", __func__, + ha->host_no, cp->device->channel, cp->device->id, + cp->device->lun, cp, cp->serial_number)); + if (sense_len) DEBUG5(qla2x00_dump_buffer(cp->sense_buffer, CMD_ACTUAL_SNSLEN(cp))); break; case CS_DATA_UNDERRUN: - DEBUG2(printk(KERN_INFO - "scsi(%ld:%d:%d) UNDERRUN status detected 0x%x-0x%x.\n", - ha->host_no, t, l, comp_status, scsi_status)); - - resid = le32_to_cpu(pkt->residual_length); + resid = resid_len; if (scsi_status & SS_RESIDUAL_UNDER) { cp->resid = resid; CMD_RESID_LEN(cp) = resid; + } else { + DEBUG2(printk(KERN_INFO + "scsi(%ld:%d:%d) UNDERRUN status detected " + "0x%x-0x%x.\n", ha->host_no, cp->device->id, + cp->device->lun, comp_status, scsi_status)); + } /* - * Check to see if SCSI Status is non zero. If so report SCSI + * Check to see if SCSI Status is non zero. If so report SCSI * Status. */ if (lscsi_status != 0) { - if (lscsi_status == SS_BUSY_CONDITION) { - cp->result = DID_BUS_BUSY << 16 | - lscsi_status; - break; - } - cp->result = DID_OK << 16 | lscsi_status; if (lscsi_status != SS_CHECK_CONDITION) @@ -1035,37 +992,30 @@ qla2x00_status_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) if (!(scsi_status & SS_SENSE_LEN_VALID)) break; - if (le16_to_cpu(pkt->req_sense_length) < - sizeof(cp->sense_buffer)) - sense_sz = le16_to_cpu(pkt->req_sense_length); - else - sense_sz = sizeof(cp->sense_buffer) - 1; + if (sense_len >= sizeof(cp->sense_buffer)) + sense_len = sizeof(cp->sense_buffer); - CMD_ACTUAL_SNSLEN(cp) = sense_sz; - sp->request_sense_length = sense_sz; + CMD_ACTUAL_SNSLEN(cp) = sense_len; + sp->request_sense_length = sense_len; sp->request_sense_ptr = cp->sense_buffer; - if (sp->request_sense_length > 32) - sense_sz = 32; + if (sp->request_sense_length > 32) + sense_len = 32; - memcpy(cp->sense_buffer, pkt->req_sense_data, sense_sz); + memcpy(cp->sense_buffer, sense_data, sense_len); - sp->request_sense_ptr += sense_sz; - sp->request_sense_length -= sense_sz; + sp->request_sense_ptr += sense_len; + sp->request_sense_length -= sense_len; if (sp->request_sense_length != 0) ha->status_srb = sp; - if (!(sp->flags & (SRB_IOCTL | SRB_TAPE)) && - (qla2x00_check_sense(cp, lq) == QLA_SUCCESS)) { - ha->status_srb = NULL; - add_to_scsi_retry_queue(ha, sp); - return; - } DEBUG5(printk("%s(): Check condition Sense data, " "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n", - __func__, ha->host_no, b, t, l, cp, + __func__, ha->host_no, cp->device->channel, + cp->device->id, cp->device->lun, cp, cp->serial_number)); - if (sense_sz) + + if (sense_len) DEBUG5(qla2x00_dump_buffer(cp->sense_buffer, CMD_ACTUAL_SNSLEN(cp))); } else { @@ -1077,12 +1027,12 @@ qla2x00_status_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) if (!(scsi_status & SS_RESIDUAL_UNDER)) { DEBUG2(printk("scsi(%ld:%d:%d:%d) Dropped " "frame(s) detected (%x of %x bytes)..." - "retrying command.\n", - ha->host_no, b, t, l, resid, + "retrying command.\n", ha->host_no, + cp->device->channel, cp->device->id, + cp->device->lun, resid, cp->request_bufflen)); cp->result = DID_BUS_BUSY << 16; - ha->dropped_frame_error_cnt++; break; } @@ -1092,8 +1042,9 @@ qla2x00_status_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d:%d): Mid-layer underflow " "detected (%x of %x bytes)...returning " - "error status.\n", - ha->host_no, b, t, l, resid, + "error status.\n", ha->host_no, + cp->device->channel, cp->device->id, + cp->device->lun, resid, cp->request_bufflen); cp->result = DID_ERROR << 16; @@ -1108,7 +1059,8 @@ qla2x00_status_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) case CS_DATA_OVERRUN: DEBUG2(printk(KERN_INFO "scsi(%ld:%d:%d): OVERRUN status detected 0x%x-0x%x\n", - ha->host_no, t, l, comp_status, scsi_status)); + ha->host_no, cp->device->id, cp->device->lun, comp_status, + scsi_status)); DEBUG2(printk(KERN_INFO "CDB: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n", cp->cmnd[0], cp->cmnd[1], cp->cmnd[2], cp->cmnd[3], @@ -1116,8 +1068,7 @@ qla2x00_status_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) DEBUG2(printk(KERN_INFO "PID=0x%lx req=0x%x xtra=0x%x -- returning DID_ERROR " "status!\n", - cp->serial_number, cp->request_bufflen, - le32_to_cpu(pkt->residual_length))); + cp->serial_number, cp->request_bufflen, resid_len)); cp->result = DID_ERROR << 16; break; @@ -1132,30 +1083,16 @@ qla2x00_status_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) * Target with DID_NO_CONNECT ELSE Queue the IOs in the * retry_queue. */ - fcport = sp->fclun->fcport; DEBUG2(printk("scsi(%ld:%d:%d): status_entry: Port Down " "pid=%ld, compl status=0x%x, port state=0x%x\n", - ha->host_no, t, l, cp->serial_number, comp_status, + ha->host_no, cp->device->id, cp->device->lun, + cp->serial_number, comp_status, atomic_read(&fcport->state))); - if ((sp->flags & (SRB_IOCTL | SRB_TAPE)) || - atomic_read(&fcport->state) == FCS_DEVICE_DEAD) { - cp->result = DID_NO_CONNECT << 16; - if (atomic_read(&ha->loop_state) == LOOP_DOWN) - sp->err_id = SRB_ERR_LOOP; - else - sp->err_id = SRB_ERR_PORT; - add_to_done_queue(ha, sp); - } else { - qla2x00_extend_timeout(cp, EXTEND_CMD_TIMEOUT); - add_to_retry_queue(ha, sp); - } - + cp->result = DID_BUS_BUSY << 16; if (atomic_read(&fcport->state) == FCS_ONLINE) { - qla2x00_mark_device_lost(ha, fcport, 1); + qla2x00_mark_device_lost(ha, fcport, 1, 1); } - - return; break; case CS_RESET: @@ -1163,17 +1100,11 @@ qla2x00_status_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) "scsi(%ld): RESET status detected 0x%x-0x%x.\n", ha->host_no, comp_status, scsi_status)); - if (sp->flags & (SRB_IOCTL | SRB_TAPE)) { - cp->result = DID_RESET << 16; - } else { - qla2x00_extend_timeout(cp, EXTEND_CMD_TIMEOUT); - add_to_retry_queue(ha, sp); - return; - } + cp->result = DID_RESET << 16; break; case CS_ABORTED: - /* + /* * hv2.19.12 - DID_ABORT does not retry the request if we * aborted this request then abort otherwise it must be a * reset. @@ -1186,18 +1117,25 @@ qla2x00_status_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) break; case CS_TIMEOUT: - DEBUG2(printk(KERN_INFO - "scsi(%ld:%d:%d:%d): TIMEOUT status detected 0x%x-0x%x.\n", - ha->host_no, b, t, l, comp_status, scsi_status)); - cp->result = DID_BUS_BUSY << 16; - fcport = lq->fclun->fcport; - - /* Check to see if logout occurred */ - if ((le16_to_cpu(pkt->status_flags) & SF_LOGOUT_SENT)) { - qla2x00_mark_device_lost(ha, fcport, 1); + if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) { + DEBUG2(printk(KERN_INFO + "scsi(%ld:%d:%d:%d): TIMEOUT status detected " + "0x%x-0x%x\n", ha->host_no, cp->device->channel, + cp->device->id, cp->device->lun, comp_status, + scsi_status)); + break; } + DEBUG2(printk(KERN_INFO + "scsi(%ld:%d:%d:%d): TIMEOUT status detected 0x%x-0x%x " + "sflags=%x.\n", ha->host_no, cp->device->channel, + cp->device->id, cp->device->lun, comp_status, scsi_status, + le16_to_cpu(sts->status_flags))); + + /* Check to see if logout occurred. */ + if ((le16_to_cpu(sts->status_flags) & SF_LOGOUT_SENT)) + qla2x00_mark_device_lost(ha, fcport, 1, 1); break; case CS_QUEUE_FULL: @@ -1207,24 +1145,13 @@ qla2x00_status_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) /* SCSI Mid-Layer handles device queue full */ - cp->result = DID_OK << 16 | lscsi_status; + cp->result = DID_OK << 16 | lscsi_status; - /* TODO: ??? */ - /* Adjust queue depth */ - ret = scsi_track_queue_full(cp->device, - sp->lun_queue->out_cnt - 1); - if (ret) { - qla_printk(KERN_INFO, ha, - "scsi(%ld:%d:%d:%d): Queue depth adjusted to %d.\n", - ha->host_no, cp->device->channel, cp->device->id, - cp->device->lun, ret); - } break; default: DEBUG3(printk("scsi(%ld): Error detected (unknown status) " - "0x%x-0x%x.\n", - ha->host_no, comp_status, scsi_status)); + "0x%x-0x%x.\n", ha->host_no, comp_status, scsi_status)); qla_printk(KERN_INFO, ha, "Unknown status detected 0x%x-0x%x.\n", comp_status, scsi_status); @@ -1235,7 +1162,7 @@ qla2x00_status_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) /* Place command on done queue. */ if (ha->status_srb == NULL) - add_to_done_queue(ha, sp); + qla2x00_sp_compl(ha, sp); } /** @@ -1259,7 +1186,7 @@ qla2x00_status_cont_entry(scsi_qla_host_t *ha, sts_cont_entry_t *pkt) "sp=%p sp->state:%d\n", __func__, sp, sp->state)); qla_printk(KERN_INFO, ha, "cmd is NULL: already returned to OS (sp=%p)\n", - sp); + sp); ha->status_srb = NULL; return; @@ -1272,6 +1199,8 @@ qla2x00_status_cont_entry(scsi_qla_host_t *ha, sts_cont_entry_t *pkt) } /* Move sense data. */ + if (IS_QLA24XX(ha) || IS_QLA25XX(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)); @@ -1280,8 +1209,8 @@ qla2x00_status_cont_entry(scsi_qla_host_t *ha, sts_cont_entry_t *pkt) /* Place command on done queue. */ if (sp->request_sense_length == 0) { - add_to_done_queue(ha, sp); ha->status_srb = NULL; + qla2x00_sp_compl(ha, sp); } } } @@ -1292,7 +1221,7 @@ qla2x00_status_cont_entry(scsi_qla_host_t *ha, sts_cont_entry_t *pkt) * @pkt: Entry pointer */ static void -qla2x00_error_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) +qla2x00_error_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) { srb_t *sp; @@ -1302,7 +1231,7 @@ qla2x00_error_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) 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, + 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__); @@ -1321,9 +1250,6 @@ qla2x00_error_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) if (sp) { /* Free outstanding command slot. */ ha->outstanding_cmds[pkt->handle] = NULL; - if (ha->actthreads) - ha->actthreads--; - sp->lun_queue->out_cnt--; /* Bad payload or header */ if (pkt->entry_status & @@ -1335,18 +1261,17 @@ qla2x00_error_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) } else { sp->cmd->result = DID_ERROR << 16; } - /* Place command on done queue. */ - add_to_done_queue(ha, sp); + qla2x00_sp_compl(ha, sp); - } else if (pkt->entry_type == COMMAND_A64_TYPE || - pkt->entry_type == COMMAND_TYPE) { + } 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", ha->host_no)); qla_printk(KERN_WARNING, ha, "Error entry - invalid handle\n"); set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); - if (ha->dpc_wait && !ha->dpc_active) + if (ha->dpc_wait && !ha->dpc_active) up(ha->dpc_wait); } } @@ -1357,7 +1282,7 @@ qla2x00_error_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) * @index: Response queue out pointer */ static void -qla2x00_ms_entry(scsi_qla_host_t *ha, ms_iocb_entry_t *pkt) +qla2x00_ms_entry(scsi_qla_host_t *ha, ms_iocb_entry_t *pkt) { srb_t *sp; @@ -1385,62 +1310,231 @@ qla2x00_ms_entry(scsi_qla_host_t *ha, ms_iocb_entry_t *pkt) /* Free outstanding command slot. */ ha->outstanding_cmds[pkt->handle1] = NULL; - add_to_done_queue(ha, sp); + qla2x00_sp_compl(ha, sp); +} + + +/** + * qla24xx_mbx_completion() - Process mailbox command completions. + * @ha: SCSI driver HA context + * @mb0: Mailbox0 register + */ +static void +qla24xx_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0) +{ + uint16_t cnt; + uint16_t __iomem *wptr; + 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__, ha->host_no, ha->mcp->mb[0])); + } else { + DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n", + __func__, ha->host_no)); + } +} + +/** + * qla24xx_process_response_queue() - Process response queue entries. + * @ha: SCSI driver HA context + */ +void +qla24xx_process_response_queue(struct scsi_qla_host *ha) +{ + struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; + struct sts_entry_24xx *pkt; + + if (!ha->flags.online) + return; + + while (ha->response_ring_ptr->signature != RESPONSE_PROCESSED) { + pkt = (struct sts_entry_24xx *)ha->response_ring_ptr; + + ha->rsp_ring_index++; + if (ha->rsp_ring_index == ha->response_q_length) { + ha->rsp_ring_index = 0; + ha->response_ring_ptr = ha->response_ring; + } else { + ha->response_ring_ptr++; + } + + if (pkt->entry_status != 0) { + DEBUG3(printk(KERN_INFO + "scsi(%ld): Process error entry.\n", ha->host_no)); + + qla2x00_error_entry(ha, (sts_entry_t *) pkt); + ((response_t *)pkt)->signature = RESPONSE_PROCESSED; + wmb(); + continue; + } + + switch (pkt->entry_type) { + case STATUS_TYPE: + qla2x00_status_entry(ha, pkt); + break; + case STATUS_CONT_TYPE: + qla2x00_status_cont_entry(ha, (sts_cont_entry_t *)pkt); + break; + case MS_IOCB_TYPE: + qla24xx_ms_entry(ha, (struct ct_entry_24xx *)pkt); + break; + default: + /* Type Not Supported. */ + DEBUG4(printk(KERN_WARNING + "scsi(%ld): Received unknown response pkt type %x " + "entry status=%x.\n", + ha->host_no, pkt->entry_type, pkt->entry_status)); + break; + } + ((response_t *)pkt)->signature = RESPONSE_PROCESSED; + wmb(); + } + + /* Adjust ring index */ + WRT_REG_DWORD(®->rsp_q_out, ha->rsp_ring_index); } /** - * qla2x00_check_sense() - Perform any sense data interrogation. - * @cp: SCSI Command - * @lq: Lun queue + * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx. + * @irq: + * @dev_id: SCSI driver HA context + * @regs: + * + * Called by system whenever the host adapter generates an interrupt. * - * Returns QLA_SUCCESS if the lun queue is suspended, else - * QLA_FUNCTION_FAILED (lun queue not suspended). + * Returns handled flag. */ -static int -qla2x00_check_sense(struct scsi_cmnd *cp, os_lun_t *lq) +irqreturn_t +qla24xx_intr_handler(int irq, void *dev_id, struct pt_regs *regs) { scsi_qla_host_t *ha; - srb_t *sp; - fc_port_t *fcport; + struct device_reg_24xx __iomem *reg; + int status; + unsigned long flags; + unsigned long iter; + uint32_t stat; + uint32_t hccr; + uint16_t mb[4]; - ha = (scsi_qla_host_t *) cp->device->host->hostdata; - if ((cp->sense_buffer[0] & 0x70) != 0x70) { - return (QLA_FUNCTION_FAILED); + ha = (scsi_qla_host_t *) dev_id; + if (!ha) { + printk(KERN_INFO + "%s(): NULL host pointer\n", __func__); + return IRQ_NONE; } - sp = (srb_t * )CMD_SP(cp); - sp->flags |= SRB_GOT_SENSE; + reg = &ha->iobase->isp24; + status = 0; - switch (cp->sense_buffer[2] & 0xf) { - case RECOVERED_ERROR: - cp->result = DID_OK << 16; - cp->sense_buffer[0] = 0; - break; + spin_lock_irqsave(&ha->hardware_lock, flags); + for (iter = 50; iter--; ) { + stat = RD_REG_DWORD(®->host_status); + if (stat & HSRX_RISC_PAUSED) { + hccr = RD_REG_DWORD(®->hccr); - case NOT_READY: - fcport = lq->fclun->fcport; + qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, " + "Dumping firmware!\n", hccr); + qla24xx_fw_dump(ha, 1); - /* - * Suspend the lun only for hard disk device type. - */ - if ((fcport->flags & FCF_TAPE_PRESENT) == 0 && - lq->q_state != LUN_STATE_TIMEOUT) { - /* - * If target is in process of being ready then suspend - * lun for 6 secs and retry all the commands. - */ - if (cp->sense_buffer[12] == 0x4 && - cp->sense_buffer[13] == 0x1) { + set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); + break; + } else if ((stat & HSRX_RISC_INT) == 0) + break; - /* Suspend the lun for 6 secs */ - qla2x00_suspend_lun(ha, lq, 6, - ql2xsuspendcount); + switch (stat & 0xff) { + case 0x1: + case 0x2: + case 0x10: + case 0x11: + qla24xx_mbx_completion(ha, MSW(stat)); + status |= MBX_INTERRUPT; - return (QLA_SUCCESS); - } + 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(ha, mb); + break; + case 0x13: + qla24xx_process_response_queue(ha); + break; + default: + DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " + "(%d).\n", + ha->host_no, stat & 0xff)); + break; } - 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) { + spin_lock_irqsave(&ha->mbx_reg_lock, flags); + + set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); + up(&ha->mbx_intr_sem); + + spin_unlock_irqrestore(&ha->mbx_reg_lock, flags); } - return (QLA_FUNCTION_FAILED); + return IRQ_HANDLED; } + +/** + * qla24xx_ms_entry() - Process a Management Server entry. + * @ha: SCSI driver HA context + * @index: Response queue out pointer + */ +static void +qla24xx_ms_entry(scsi_qla_host_t *ha, struct ct_entry_24xx *pkt) +{ + srb_t *sp; + + DEBUG3(printk("%s(%ld): pkt=%p pkthandle=%d.\n", + __func__, ha->host_no, pkt, pkt->handle)); + + DEBUG9(printk("%s: ct pkt dump:\n", __func__);) + DEBUG9(qla2x00_dump_buffer((void *)pkt, sizeof(struct ct_entry_24xx));) + + /* Validate handle. */ + if (pkt->handle < MAX_OUTSTANDING_COMMANDS) + sp = ha->outstanding_cmds[pkt->handle]; + else + sp = NULL; + + if (sp == NULL) { + DEBUG2(printk("scsi(%ld): MS entry - invalid handle\n", + ha->host_no)); + DEBUG10(printk("scsi(%ld): MS entry - invalid handle\n", + ha->host_no)); + qla_printk(KERN_WARNING, ha, "MS entry - invalid handle %d\n", + pkt->handle); + + set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); + return; + } + + CMD_COMPL_STATUS(sp->cmd) = le16_to_cpu(pkt->comp_status); + CMD_ENTRY_STATUS(sp->cmd) = pkt->entry_status; + + /* Free outstanding command slot. */ + ha->outstanding_cmds[pkt->handle] = NULL; + + qla2x00_sp_compl(ha, sp); +} +