diff options
Diffstat (limited to 'drivers/scsi/qla4xxx/ql4_mbx.c')
| -rw-r--r-- | drivers/scsi/qla4xxx/ql4_mbx.c | 172 |
1 files changed, 128 insertions, 44 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c index 54db6cbbd94..0d3a6526841 100644 --- a/drivers/scsi/qla4xxx/ql4_mbx.c +++ b/drivers/scsi/qla4xxx/ql4_mbx.c @@ -19,13 +19,13 @@ * @mbx_cmd: data pointer for mailbox in registers. * @mbx_sts: data pointer for mailbox out registers. * - * This routine sssue mailbox commands and waits for completion. + * This routine isssue mailbox commands and waits for completion. * If outCount is 0, this routine completes successfully WITHOUT waiting * for the mailbox command to complete. **/ -static int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount, - uint8_t outCount, uint32_t *mbx_cmd, - uint32_t *mbx_sts) +int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount, + uint8_t outCount, uint32_t *mbx_cmd, + uint32_t *mbx_sts) { int status = QLA_ERROR; uint8_t i; @@ -59,32 +59,66 @@ static int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount, } /* To prevent overwriting mailbox registers for a command that has - * not yet been serviced, check to see if a previously issued - * mailbox command is interrupting. + * not yet been serviced, check to see if an active command + * (AEN, IOCB, etc.) is interrupting, then service it. * ----------------------------------------------------------------- */ spin_lock_irqsave(&ha->hardware_lock, flags); - intr_status = readl(&ha->reg->ctrl_status); - if (intr_status & CSR_SCSI_PROCESSOR_INTR) { - /* Service existing interrupt */ - qla4xxx_interrupt_service_routine(ha, intr_status); - clear_bit(AF_MBOX_COMMAND_DONE, &ha->flags); + + if (is_qla8022(ha)) { + intr_status = readl(&ha->qla4_8xxx_reg->host_int); + if (intr_status & ISRX_82XX_RISC_INT) { + /* Service existing interrupt */ + DEBUG2(printk("scsi%ld: %s: " + "servicing existing interrupt\n", + ha->host_no, __func__)); + intr_status = readl(&ha->qla4_8xxx_reg->host_status); + ha->isp_ops->interrupt_service_routine(ha, intr_status); + clear_bit(AF_MBOX_COMMAND_DONE, &ha->flags); + if (test_bit(AF_INTERRUPTS_ON, &ha->flags) && + test_bit(AF_INTx_ENABLED, &ha->flags)) + qla4_8xxx_wr_32(ha, + ha->nx_legacy_intr.tgt_mask_reg, + 0xfbff); + } + } else { + intr_status = readl(&ha->reg->ctrl_status); + if (intr_status & CSR_SCSI_PROCESSOR_INTR) { + /* Service existing interrupt */ + ha->isp_ops->interrupt_service_routine(ha, intr_status); + clear_bit(AF_MBOX_COMMAND_DONE, &ha->flags); + } } - /* Send the mailbox command to the firmware */ ha->mbox_status_count = outCount; for (i = 0; i < outCount; i++) ha->mbox_status[i] = 0; - /* Load all mailbox registers, except mailbox 0. */ - for (i = 1; i < inCount; i++) - writel(mbx_cmd[i], &ha->reg->mailbox[i]); + if (is_qla8022(ha)) { + /* Load all mailbox registers, except mailbox 0. */ + DEBUG5( + printk("scsi%ld: %s: Cmd ", ha->host_no, __func__); + for (i = 0; i < inCount; i++) + printk("mb%d=%04x ", i, mbx_cmd[i]); + printk("\n")); + + for (i = 1; i < inCount; i++) + writel(mbx_cmd[i], &ha->qla4_8xxx_reg->mailbox_in[i]); + writel(mbx_cmd[0], &ha->qla4_8xxx_reg->mailbox_in[0]); + readl(&ha->qla4_8xxx_reg->mailbox_in[0]); + writel(HINT_MBX_INT_PENDING, &ha->qla4_8xxx_reg->hint); + } else { + /* Load all mailbox registers, except mailbox 0. */ + for (i = 1; i < inCount; i++) + writel(mbx_cmd[i], &ha->reg->mailbox[i]); + + /* Wakeup firmware */ + writel(mbx_cmd[0], &ha->reg->mailbox[0]); + readl(&ha->reg->mailbox[0]); + writel(set_rmask(CSR_INTR_RISC), &ha->reg->ctrl_status); + readl(&ha->reg->ctrl_status); + } - /* Wakeup firmware */ - writel(mbx_cmd[0], &ha->reg->mailbox[0]); - readl(&ha->reg->mailbox[0]); - writel(set_rmask(CSR_INTR_RISC), &ha->reg->ctrl_status); - readl(&ha->reg->ctrl_status); spin_unlock_irqrestore(&ha->hardware_lock, flags); /* Wait for completion */ @@ -98,26 +132,66 @@ static int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount, status = QLA_SUCCESS; goto mbox_exit; } - /* Wait for command to complete */ - wait_count = jiffies + MBOX_TOV * HZ; - while (test_bit(AF_MBOX_COMMAND_DONE, &ha->flags) == 0) { - if (time_after_eq(jiffies, wait_count)) - break; - spin_lock_irqsave(&ha->hardware_lock, flags); - intr_status = readl(&ha->reg->ctrl_status); - if (intr_status & INTR_PENDING) { + /* + * Wait for completion: Poll or completion queue + */ + if (test_bit(AF_IRQ_ATTACHED, &ha->flags) && + test_bit(AF_INTERRUPTS_ON, &ha->flags) && + test_bit(AF_ONLINE, &ha->flags) && + !test_bit(AF_HBA_GOING_AWAY, &ha->flags)) { + /* Do not poll for completion. Use completion queue */ + set_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags); + wait_for_completion_timeout(&ha->mbx_intr_comp, MBOX_TOV * HZ); + clear_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags); + } else { + /* Poll for command to complete */ + wait_count = jiffies + MBOX_TOV * HZ; + while (test_bit(AF_MBOX_COMMAND_DONE, &ha->flags) == 0) { + if (time_after_eq(jiffies, wait_count)) + break; /* * Service the interrupt. * The ISR will save the mailbox status registers * to a temporary storage location in the adapter * structure. */ - ha->mbox_status_count = outCount; - qla4xxx_interrupt_service_routine(ha, intr_status); + + spin_lock_irqsave(&ha->hardware_lock, flags); + if (is_qla8022(ha)) { + intr_status = + readl(&ha->qla4_8xxx_reg->host_int); + if (intr_status & ISRX_82XX_RISC_INT) { + ha->mbox_status_count = outCount; + intr_status = + readl(&ha->qla4_8xxx_reg->host_status); + ha->isp_ops->interrupt_service_routine( + ha, intr_status); + if (test_bit(AF_INTERRUPTS_ON, + &ha->flags) && + test_bit(AF_INTx_ENABLED, + &ha->flags)) + qla4_8xxx_wr_32(ha, + ha->nx_legacy_intr.tgt_mask_reg, + 0xfbff); + } + } else { + intr_status = readl(&ha->reg->ctrl_status); + if (intr_status & INTR_PENDING) { + /* + * Service the interrupt. + * The ISR will save the mailbox status + * registers to a temporary storage + * location in the adapter structure. + */ + ha->mbox_status_count = outCount; + ha->isp_ops->interrupt_service_routine( + ha, intr_status); + } + } + spin_unlock_irqrestore(&ha->hardware_lock, flags); + msleep(10); } - spin_unlock_irqrestore(&ha->hardware_lock, flags); - msleep(10); } /* Check for mailbox timeout. */ @@ -172,7 +246,7 @@ mbox_exit: return status; } -uint8_t +static uint8_t qla4xxx_set_ifcb(struct scsi_qla_host *ha, uint32_t *mbox_cmd, uint32_t *mbox_sts, dma_addr_t init_fw_cb_dma) { @@ -196,7 +270,7 @@ qla4xxx_set_ifcb(struct scsi_qla_host *ha, uint32_t *mbox_cmd, return QLA_SUCCESS; } -uint8_t +static uint8_t qla4xxx_get_ifcb(struct scsi_qla_host *ha, uint32_t *mbox_cmd, uint32_t *mbox_sts, dma_addr_t init_fw_cb_dma) { @@ -218,7 +292,7 @@ qla4xxx_get_ifcb(struct scsi_qla_host *ha, uint32_t *mbox_cmd, return QLA_SUCCESS; } -void +static void qla4xxx_update_local_ip(struct scsi_qla_host *ha, struct addr_ctrl_blk *init_fw_cb) { @@ -256,7 +330,7 @@ qla4xxx_update_local_ip(struct scsi_qla_host *ha, } } -uint8_t +static uint8_t qla4xxx_update_local_ifcb(struct scsi_qla_host *ha, uint32_t *mbox_cmd, uint32_t *mbox_sts, @@ -445,7 +519,7 @@ int qla4xxx_get_firmware_state(struct scsi_qla_host * ha) DEBUG2(printk("scsi%ld: %s firmware_state=0x%x\n", ha->host_no, __func__, ha->firmware_state);) - return QLA_SUCCESS; + return QLA_SUCCESS; } /** @@ -470,6 +544,10 @@ int qla4xxx_get_firmware_status(struct scsi_qla_host * ha) mbox_sts[0])); return QLA_ERROR; } + + ql4_printk(KERN_INFO, ha, "%ld firmare IOCBs available (%d).\n", + ha->host_no, mbox_cmd[2]); + return QLA_SUCCESS; } @@ -500,7 +578,7 @@ int qla4xxx_get_fwddb_entry(struct scsi_qla_host *ha, /* Make sure the device index is valid */ if (fw_ddb_index >= MAX_DDB_ENTRIES) { - DEBUG2(printk("scsi%ld: %s: index [%d] out of range.\n", + DEBUG2(printk("scsi%ld: %s: ddb [%d] out of range.\n", ha->host_no, __func__, fw_ddb_index)); goto exit_get_fwddb; } @@ -521,7 +599,7 @@ int qla4xxx_get_fwddb_entry(struct scsi_qla_host *ha, goto exit_get_fwddb; } if (fw_ddb_index != mbox_sts[1]) { - DEBUG2(printk("scsi%ld: %s: index mismatch [%d] != [%d].\n", + DEBUG2(printk("scsi%ld: %s: ddb mismatch [%d] != [%d].\n", ha->host_no, __func__, fw_ddb_index, mbox_sts[1])); goto exit_get_fwddb; @@ -590,6 +668,7 @@ int qla4xxx_set_ddb_entry(struct scsi_qla_host * ha, uint16_t fw_ddb_index, { uint32_t mbox_cmd[MBOX_REG_COUNT]; uint32_t mbox_sts[MBOX_REG_COUNT]; + int status; /* Do not wait for completion. The firmware will send us an * ASTS_DATABASE_CHANGED (0x8014) to notify us of the login status. @@ -603,7 +682,12 @@ int qla4xxx_set_ddb_entry(struct scsi_qla_host * ha, uint16_t fw_ddb_index, mbox_cmd[3] = MSDW(fw_ddb_entry_dma); mbox_cmd[4] = sizeof(struct dev_db_entry); - return qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], &mbox_sts[0]); + status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], + &mbox_sts[0]); + DEBUG2(printk("scsi%ld: %s: status=%d mbx0=0x%x mbx4=0x%x\n", + ha->host_no, __func__, status, mbox_sts[0], mbox_sts[4]);) + + return status; } /** @@ -817,8 +901,8 @@ int qla4xxx_abort_task(struct scsi_qla_host *ha, struct srb *srb) /** * qla4xxx_reset_lun - issues LUN Reset * @ha: Pointer to host adapter structure. - * @db_entry: Pointer to device database entry - * @un_entry: Pointer to lun entry structure + * @ddb_entry: Pointer to device database entry + * @lun: lun number * * This routine performs a LUN RESET on the specified target/lun. * The caller must ensure that the ddb_entry and lun_entry pointers @@ -832,7 +916,7 @@ int qla4xxx_reset_lun(struct scsi_qla_host * ha, struct ddb_entry * ddb_entry, int status = QLA_SUCCESS; DEBUG2(printk("scsi%ld:%d:%d: lun reset issued\n", ha->host_no, - ddb_entry->os_target_id, lun)); + ddb_entry->fw_ddb_index, lun)); /* * Send lun reset command to ISP, so that the ISP will return all @@ -872,7 +956,7 @@ int qla4xxx_reset_target(struct scsi_qla_host *ha, int status = QLA_SUCCESS; DEBUG2(printk("scsi%ld:%d: target reset issued\n", ha->host_no, - ddb_entry->os_target_id)); + ddb_entry->fw_ddb_index)); /* * Send target reset command to ISP, so that the ISP will return all |