ql4_isr.c revision b37ca4183c287448ad0096381d030ca5fc788059
1afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu/* 2afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * QLogic iSCSI HBA Driver 3c68cdbf045d98f495e39402b3dfab42d0ddaf9ffVikas Chaudhary * Copyright (c) 2003-2012 QLogic Corporation 4afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * 5afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * See LICENSE.qla4xxx for copyright and licensing details. 6afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu */ 7afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 8afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu#include "ql4_def.h" 9401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu#include "ql4_glbl.h" 10401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu#include "ql4_dbg.h" 11401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu#include "ql4_inline.h" 12afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 13afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu/** 1494bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins * qla4xxx_copy_sense - copy sense data into cmd sense buffer 1594bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins * @ha: Pointer to host adapter structure. 1694bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins * @sts_entry: Pointer to status entry structure. 1794bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins * @srb: Pointer to srb structure. 1894bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins **/ 1994bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higginsstatic void qla4xxx_copy_sense(struct scsi_qla_host *ha, 2094bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins struct status_entry *sts_entry, 2194bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins struct srb *srb) 2294bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins{ 2394bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins struct scsi_cmnd *cmd = srb->cmd; 2494bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins uint16_t sense_len; 2594bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins 2694bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 2794bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins sense_len = le16_to_cpu(sts_entry->senseDataByteCnt); 286d78bd56be54286a72413db82d87fc371867629fPrasanna Mumbai if (sense_len == 0) { 296d78bd56be54286a72413db82d87fc371867629fPrasanna Mumbai DEBUG2(ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%d:%d: %s:" 306d78bd56be54286a72413db82d87fc371867629fPrasanna Mumbai " sense len 0\n", ha->host_no, 316d78bd56be54286a72413db82d87fc371867629fPrasanna Mumbai cmd->device->channel, cmd->device->id, 326d78bd56be54286a72413db82d87fc371867629fPrasanna Mumbai cmd->device->lun, __func__)); 336d78bd56be54286a72413db82d87fc371867629fPrasanna Mumbai ha->status_srb = NULL; 3494bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins return; 356d78bd56be54286a72413db82d87fc371867629fPrasanna Mumbai } 3694bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins /* Save total available sense length, 3794bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins * not to exceed cmd's sense buffer size */ 3894bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins sense_len = min_t(uint16_t, sense_len, SCSI_SENSE_BUFFERSIZE); 3994bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins srb->req_sense_ptr = cmd->sense_buffer; 4094bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins srb->req_sense_len = sense_len; 4194bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins 4294bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins /* Copy sense from sts_entry pkt */ 4394bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins sense_len = min_t(uint16_t, sense_len, IOCB_MAX_SENSEDATA_LEN); 4494bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins memcpy(cmd->sense_buffer, sts_entry->senseData, sense_len); 4594bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins 4694bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins DEBUG2(printk(KERN_INFO "scsi%ld:%d:%d:%d: %s: sense key = %x, " 4794bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins "ASL= %02x, ASC/ASCQ = %02x/%02x\n", ha->host_no, 4894bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins cmd->device->channel, cmd->device->id, 4994bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins cmd->device->lun, __func__, 5094bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins sts_entry->senseData[2] & 0x0f, 5194bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins sts_entry->senseData[7], 5294bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins sts_entry->senseData[12], 5394bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins sts_entry->senseData[13])); 5494bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins 5594bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins DEBUG5(qla4xxx_dump_buffer(cmd->sense_buffer, sense_len)); 5694bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins srb->flags |= SRB_GOT_SENSE; 5794bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins 5894bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins /* Update srb, in case a sts_cont pkt follows */ 5994bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins srb->req_sense_ptr += sense_len; 6094bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins srb->req_sense_len -= sense_len; 6194bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins if (srb->req_sense_len != 0) 6294bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins ha->status_srb = srb; 6394bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins else 6494bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins ha->status_srb = NULL; 6594bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins} 6694bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins 6794bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins/** 6894bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins * qla4xxx_status_cont_entry - Process a Status Continuations entry. 6994bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins * @ha: SCSI driver HA context 7094bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins * @sts_cont: Entry pointer 7194bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins * 7294bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins * Extended sense data. 7394bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins */ 7494bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higginsstatic void 7594bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higginsqla4xxx_status_cont_entry(struct scsi_qla_host *ha, 7694bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins struct status_cont_entry *sts_cont) 7794bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins{ 7894bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins struct srb *srb = ha->status_srb; 7994bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins struct scsi_cmnd *cmd; 80735e41543c12c245290cf652727893a66cbd8ab6Vikas Chaudhary uint16_t sense_len; 8194bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins 8294bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins if (srb == NULL) 8394bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins return; 8494bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins 8594bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins cmd = srb->cmd; 8694bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins if (cmd == NULL) { 8794bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins DEBUG2(printk(KERN_INFO "scsi%ld: %s: Cmd already returned " 8894bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins "back to OS srb=%p srb->state:%d\n", ha->host_no, 8994bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins __func__, srb, srb->state)); 9094bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins ha->status_srb = NULL; 9194bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins return; 9294bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins } 9394bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins 9494bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins /* Copy sense data. */ 9594bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins sense_len = min_t(uint16_t, srb->req_sense_len, 9694bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins IOCB_MAX_EXT_SENSEDATA_LEN); 9794bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins memcpy(srb->req_sense_ptr, sts_cont->ext_sense_data, sense_len); 9894bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins DEBUG5(qla4xxx_dump_buffer(srb->req_sense_ptr, sense_len)); 9994bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins 10094bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins srb->req_sense_ptr += sense_len; 10194bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins srb->req_sense_len -= sense_len; 10294bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins 10394bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins /* Place command on done queue. */ 10494bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins if (srb->req_sense_len == 0) { 10509a0f719896659a6c32df11426e55795012c06ffVikas Chaudhary kref_put(&srb->srb_ref, qla4xxx_srb_compl); 10694bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins ha->status_srb = NULL; 10794bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins } 10894bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins} 10994bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins 11094bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins/** 111afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * qla4xxx_status_entry - processes status IOCBs 112afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * @ha: Pointer to host adapter structure. 113afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * @sts_entry: Pointer to status entry structure. 114afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu **/ 115afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulustatic void qla4xxx_status_entry(struct scsi_qla_host *ha, 116afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu struct status_entry *sts_entry) 117afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu{ 118afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu uint8_t scsi_status; 119afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu struct scsi_cmnd *cmd; 120afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu struct srb *srb; 121afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu struct ddb_entry *ddb_entry; 122afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu uint32_t residual; 123afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 124afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu srb = qla4xxx_del_from_active_array(ha, le32_to_cpu(sts_entry->handle)); 125afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu if (!srb) { 1264c6a794d2c0affde28f46ef5646cd41cd1a35f06Vikas Chaudhary ql4_printk(KERN_WARNING, ha, "%s invalid status entry: " 1274c6a794d2c0affde28f46ef5646cd41cd1a35f06Vikas Chaudhary "handle=0x%0x, srb=%p\n", __func__, 1284c6a794d2c0affde28f46ef5646cd41cd1a35f06Vikas Chaudhary sts_entry->handle, srb); 1296e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary if (is_qla80XX(ha)) 1304c6a794d2c0affde28f46ef5646cd41cd1a35f06Vikas Chaudhary set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 1314c6a794d2c0affde28f46ef5646cd41cd1a35f06Vikas Chaudhary else 1324c6a794d2c0affde28f46ef5646cd41cd1a35f06Vikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 133afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu return; 134afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } 135afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 136afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu cmd = srb->cmd; 137afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu if (cmd == NULL) { 138afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu DEBUG2(printk("scsi%ld: %s: Command already returned back to " 139afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu "OS pkt->handle=%d srb=%p srb->state:%d\n", 140afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu ha->host_no, __func__, sts_entry->handle, 141afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu srb, srb->state)); 142c2660df310a3c445194748b54f51b7224639e742Vikas Chaudhary ql4_printk(KERN_WARNING, ha, "Command is NULL:" 143c2660df310a3c445194748b54f51b7224639e742Vikas Chaudhary " already returned to OS (srb=%p)\n", srb); 144afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu return; 145afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } 146afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 147afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu ddb_entry = srb->ddb; 148afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu if (ddb_entry == NULL) { 149afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu cmd->result = DID_NO_CONNECT << 16; 150afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu goto status_entry_exit; 151afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } 152afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 153afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu residual = le32_to_cpu(sts_entry->residualByteCnt); 154afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 155afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* Translate ISP error to a Linux SCSI error. */ 156afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu scsi_status = sts_entry->scsiStatus; 157afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu switch (sts_entry->completionStatus) { 158afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case SCS_COMPLETE: 159afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 1606ea7e33ee1b74de9b60327fec1a0cd39afac3983David C Somayajulu if (sts_entry->iscsiFlags & ISCSI_FLAG_RESIDUAL_OVER) { 1616ea7e33ee1b74de9b60327fec1a0cd39afac3983David C Somayajulu cmd->result = DID_ERROR << 16; 1626ea7e33ee1b74de9b60327fec1a0cd39afac3983David C Somayajulu break; 1636ea7e33ee1b74de9b60327fec1a0cd39afac3983David C Somayajulu } 1646ea7e33ee1b74de9b60327fec1a0cd39afac3983David C Somayajulu 1656ea7e33ee1b74de9b60327fec1a0cd39afac3983David C Somayajulu if (sts_entry->iscsiFlags &ISCSI_FLAG_RESIDUAL_UNDER) { 1665f7186c841a13abff0bf81ee93754b4f46e19141FUJITA Tomonori scsi_set_resid(cmd, residual); 1679d56291366cd6ab156be722e42cf487bef20f5fdDavid C Somayajulu if (!scsi_status && ((scsi_bufflen(cmd) - residual) < 1689d56291366cd6ab156be722e42cf487bef20f5fdDavid C Somayajulu cmd->underflow)) { 1696ea7e33ee1b74de9b60327fec1a0cd39afac3983David C Somayajulu 1706ea7e33ee1b74de9b60327fec1a0cd39afac3983David C Somayajulu cmd->result = DID_ERROR << 16; 1716ea7e33ee1b74de9b60327fec1a0cd39afac3983David C Somayajulu 1726ea7e33ee1b74de9b60327fec1a0cd39afac3983David C Somayajulu DEBUG2(printk("scsi%ld:%d:%d:%d: %s: " 1736ea7e33ee1b74de9b60327fec1a0cd39afac3983David C Somayajulu "Mid-layer Data underrun0, " 1746ea7e33ee1b74de9b60327fec1a0cd39afac3983David C Somayajulu "xferlen = 0x%x, " 1756ea7e33ee1b74de9b60327fec1a0cd39afac3983David C Somayajulu "residual = 0x%x\n", ha->host_no, 1766ea7e33ee1b74de9b60327fec1a0cd39afac3983David C Somayajulu cmd->device->channel, 1776ea7e33ee1b74de9b60327fec1a0cd39afac3983David C Somayajulu cmd->device->id, 1786ea7e33ee1b74de9b60327fec1a0cd39afac3983David C Somayajulu cmd->device->lun, __func__, 1796ea7e33ee1b74de9b60327fec1a0cd39afac3983David C Somayajulu scsi_bufflen(cmd), residual)); 1806ea7e33ee1b74de9b60327fec1a0cd39afac3983David C Somayajulu break; 1816ea7e33ee1b74de9b60327fec1a0cd39afac3983David C Somayajulu } 1826ea7e33ee1b74de9b60327fec1a0cd39afac3983David C Somayajulu } 183afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 184afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu cmd->result = DID_OK << 16 | scsi_status; 185afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 186afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu if (scsi_status != SCSI_CHECK_CONDITION) 187afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 188afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 189afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* Copy Sense Data into sense buffer. */ 19094bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins qla4xxx_copy_sense(ha, sts_entry, srb); 191afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 192afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 193afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case SCS_INCOMPLETE: 194afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* Always set the status to DID_ERROR, since 195afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * all conditions result in that status anyway */ 196afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu cmd->result = DID_ERROR << 16; 197afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 198afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 199afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case SCS_RESET_OCCURRED: 200afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu DEBUG2(printk("scsi%ld:%d:%d:%d: %s: Device RESET occurred\n", 201afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu ha->host_no, cmd->device->channel, 202afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu cmd->device->id, cmd->device->lun, __func__)); 203afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 204afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu cmd->result = DID_RESET << 16; 205afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 206afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 207afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case SCS_ABORTED: 208afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu DEBUG2(printk("scsi%ld:%d:%d:%d: %s: Abort occurred\n", 209afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu ha->host_no, cmd->device->channel, 210afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu cmd->device->id, cmd->device->lun, __func__)); 211afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 212afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu cmd->result = DID_RESET << 16; 213afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 214afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 215afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case SCS_TIMEOUT: 216afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu DEBUG2(printk(KERN_INFO "scsi%ld:%d:%d:%d: Timeout\n", 217afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu ha->host_no, cmd->device->channel, 218afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu cmd->device->id, cmd->device->lun)); 219afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 22056d7fcfa815564b40a1b0ec7a30ea8cb3bc0713eMike Christie cmd->result = DID_TRANSPORT_DISRUPTED << 16; 221afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 222afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* 223afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * Mark device missing so that we won't continue to send 224afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * I/O to this device. We should get a ddb state change 225afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * AEN soon. 226afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu */ 227b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar if (iscsi_is_session_online(ddb_entry->sess)) 228b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar qla4xxx_mark_device_missing(ddb_entry->sess); 229afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 230afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 231afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case SCS_DATA_UNDERRUN: 232afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case SCS_DATA_OVERRUN: 2336ea7e33ee1b74de9b60327fec1a0cd39afac3983David C Somayajulu if ((sts_entry->iscsiFlags & ISCSI_FLAG_RESIDUAL_OVER) || 234b06fc73a9ebd352065dd4dd3139fb53ed72ac970Mike Christie (sts_entry->completionStatus == SCS_DATA_OVERRUN)) { 235b06fc73a9ebd352065dd4dd3139fb53ed72ac970Mike Christie DEBUG2(printk("scsi%ld:%d:%d:%d: %s: " "Data overrun\n", 236b06fc73a9ebd352065dd4dd3139fb53ed72ac970Mike Christie ha->host_no, 237afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu cmd->device->channel, cmd->device->id, 238b06fc73a9ebd352065dd4dd3139fb53ed72ac970Mike Christie cmd->device->lun, __func__)); 239afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 240afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu cmd->result = DID_ERROR << 16; 241afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 242afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } 243afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 2446ea7e33ee1b74de9b60327fec1a0cd39afac3983David C Somayajulu scsi_set_resid(cmd, residual); 245afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 24624c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade if (sts_entry->iscsiFlags & ISCSI_FLAG_RESIDUAL_UNDER) { 24724c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade 24824c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade /* Both the firmware and target reported UNDERRUN: 24924c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade * 25024c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade * MID-LAYER UNDERFLOW case: 25124c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade * Some kernels do not properly detect midlayer 25224c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade * underflow, so we manually check it and return 25324c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade * ERROR if the minimum required data was not 25424c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade * received. 25524c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade * 25624c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade * ALL OTHER cases: 25724c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade * Fall thru to check scsi_status 25824c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade */ 25924c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade if (!scsi_status && (scsi_bufflen(cmd) - residual) < 26024c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade cmd->underflow) { 26124c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade DEBUG2(ql4_printk(KERN_INFO, ha, 26224c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade "scsi%ld:%d:%d:%d: %s: Mid-layer Data underrun, xferlen = 0x%x,residual = 0x%x\n", 26324c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade ha->host_no, 26424c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade cmd->device->channel, 26524c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade cmd->device->id, 26624c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade cmd->device->lun, __func__, 26724c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade scsi_bufflen(cmd), 26824c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade residual)); 269afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 27024c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade cmd->result = DID_ERROR << 16; 271afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 27224c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade } 27324c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade 27424c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade } else if (scsi_status != SAM_STAT_TASK_SET_FULL && 27524c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade scsi_status != SAM_STAT_BUSY) { 276afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 277afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* 27824c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade * The firmware reports UNDERRUN, but the target does 27924c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade * not report it: 28024c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade * 28124c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade * scsi_status | host_byte device_byte 28224c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade * | (19:16) (7:0) 28324c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade * ============= | ========= =========== 28424c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade * TASK_SET_FULL | DID_OK scsi_status 28524c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade * BUSY | DID_OK scsi_status 28624c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade * ALL OTHERS | DID_ERROR scsi_status 28724c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade * 28824c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade * Note: If scsi_status is task set full or busy, 28924c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade * then this else if would fall thru to check the 29024c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade * scsi_status and return DID_OK. 291afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu */ 292afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 29324c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade DEBUG2(ql4_printk(KERN_INFO, ha, 29424c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade "scsi%ld:%d:%d:%d: %s: Dropped frame(s) detected (0x%x of 0x%x bytes).\n", 29524c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade ha->host_no, 29624c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade cmd->device->channel, 29724c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade cmd->device->id, 29824c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade cmd->device->lun, __func__, 29924c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade residual, 30024c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade scsi_bufflen(cmd))); 30124c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade 30224c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade cmd->result = DID_ERROR << 16 | scsi_status; 30324c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade goto check_scsi_status; 304afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } 30524c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade 30624c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade cmd->result = DID_OK << 16 | scsi_status; 30724c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade 30824c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivadecheck_scsi_status: 30924c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade if (scsi_status == SAM_STAT_CHECK_CONDITION) 31024c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade qla4xxx_copy_sense(ha, sts_entry, srb); 31124c14200947d0c2ca6943fe0353438c3ac9c1c2aLalit Chandivade 312afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 313afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 314afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case SCS_DEVICE_LOGGED_OUT: 315afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case SCS_DEVICE_UNAVAILABLE: 316f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary DEBUG2(printk(KERN_INFO "scsi%ld:%d:%d:%d: SCS_DEVICE " 317f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary "state: 0x%x\n", ha->host_no, 318f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary cmd->device->channel, cmd->device->id, 319f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary cmd->device->lun, sts_entry->completionStatus)); 320afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* 321afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * Mark device missing so that we won't continue to 322afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * send I/O to this device. We should get a ddb 323afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * state change AEN soon. 324afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu */ 325b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar if (iscsi_is_session_online(ddb_entry->sess)) 326b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar qla4xxx_mark_device_missing(ddb_entry->sess); 327afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 32856d7fcfa815564b40a1b0ec7a30ea8cb3bc0713eMike Christie cmd->result = DID_TRANSPORT_DISRUPTED << 16; 329afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 330afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 331afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case SCS_QUEUE_FULL: 332afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* 333afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * SCSI Mid-Layer handles device queue full 334afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu */ 335afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu cmd->result = DID_OK << 16 | sts_entry->scsiStatus; 336afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu DEBUG2(printk("scsi%ld:%d:%d: %s: QUEUE FULL detected " 337afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu "compl=%02x, scsi=%02x, state=%02x, iFlags=%02x," 338afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu " iResp=%02x\n", ha->host_no, cmd->device->id, 339afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu cmd->device->lun, __func__, 340afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu sts_entry->completionStatus, 341afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu sts_entry->scsiStatus, sts_entry->state_flags, 342afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu sts_entry->iscsiFlags, 343afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu sts_entry->iscsiResponse)); 344afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 345afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 346afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu default: 347afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu cmd->result = DID_ERROR << 16; 348afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 349afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } 350afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 351afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulustatus_entry_exit: 352afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 35394bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins /* complete the request, if not waiting for status_continuation pkt */ 354afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu srb->cc_stat = sts_entry->completionStatus; 35594bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins if (ha->status_srb == NULL) 35609a0f719896659a6c32df11426e55795012c06ffVikas Chaudhary kref_put(&srb->srb_ref, qla4xxx_srb_compl); 357afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu} 358afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 359afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu/** 360b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar * qla4xxx_passthru_status_entry - processes passthru status IOCBs (0x3C) 361b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar * @ha: Pointer to host adapter structure. 362b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar * @sts_entry: Pointer to status entry structure. 363b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar **/ 364b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankarstatic void qla4xxx_passthru_status_entry(struct scsi_qla_host *ha, 365b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar struct passthru_status *sts_entry) 366b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar{ 367b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar struct iscsi_task *task; 368b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar struct ddb_entry *ddb_entry; 369b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar struct ql4_task_data *task_data; 370b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar struct iscsi_cls_conn *cls_conn; 371b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar struct iscsi_conn *conn; 372b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar itt_t itt; 373b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar uint32_t fw_ddb_index; 374b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar 375b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar itt = sts_entry->handle; 376b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar fw_ddb_index = le32_to_cpu(sts_entry->target); 377b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar 378b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index); 379b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar 380b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar if (ddb_entry == NULL) { 381b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar ql4_printk(KERN_ERR, ha, "%s: Invalid target index = 0x%x\n", 382b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar __func__, sts_entry->target); 383b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar return; 384b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar } 385b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar 386b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar cls_conn = ddb_entry->conn; 387b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar conn = cls_conn->dd_data; 388b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar spin_lock(&conn->session->lock); 389b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar task = iscsi_itt_to_task(conn, itt); 390b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar spin_unlock(&conn->session->lock); 391b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar 392b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar if (task == NULL) { 393b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar ql4_printk(KERN_ERR, ha, "%s: Task is NULL\n", __func__); 394b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar return; 395b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar } 396b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar 397b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar task_data = task->dd_data; 398b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar memcpy(&task_data->sts, sts_entry, sizeof(struct passthru_status)); 399b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar ha->iocb_cnt -= task_data->iocb_req_cnt; 400b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar queue_work(ha->task_wq, &task_data->task_work); 401b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar} 402b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar 403c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudharystatic struct mrb *qla4xxx_del_mrb_from_active_array(struct scsi_qla_host *ha, 404c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary uint32_t index) 405c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary{ 406c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary struct mrb *mrb = NULL; 407c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary 408c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary /* validate handle and remove from active array */ 409c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary if (index >= MAX_MRB) 410c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary return mrb; 411c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary 412c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary mrb = ha->active_mrb_array[index]; 413c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary ha->active_mrb_array[index] = NULL; 414c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary if (!mrb) 415c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary return mrb; 416c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary 417c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary /* update counters */ 418c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary ha->iocb_cnt -= mrb->iocb_cnt; 419c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary 420c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary return mrb; 421c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary} 422c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary 423c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudharystatic void qla4xxx_mbox_status_entry(struct scsi_qla_host *ha, 424c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary struct mbox_status_iocb *mbox_sts_entry) 425c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary{ 426c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary struct mrb *mrb; 427c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary uint32_t status; 428c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary uint32_t data_size; 429c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary 430c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary mrb = qla4xxx_del_mrb_from_active_array(ha, 431c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary le32_to_cpu(mbox_sts_entry->handle)); 432c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary 433c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary if (mrb == NULL) { 434c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary ql4_printk(KERN_WARNING, ha, "%s: mrb[%d] is null\n", __func__, 435c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary mbox_sts_entry->handle); 436c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary return; 437c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary } 438c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary 439c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary switch (mrb->mbox_cmd) { 440c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary case MBOX_CMD_PING: 441c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: mbox_cmd = 0x%x, " 442c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary "mbox_sts[0] = 0x%x, mbox_sts[6] = 0x%x\n", 443c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary __func__, mrb->mbox_cmd, 444c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary mbox_sts_entry->out_mbox[0], 445c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary mbox_sts_entry->out_mbox[6])); 446c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary 447c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary if (mbox_sts_entry->out_mbox[0] == MBOX_STS_COMMAND_COMPLETE) 4481a590cabc272d62ffca1427d3010aea2098f414fVikas Chaudhary status = ISCSI_PING_SUCCESS; 449c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary else 4501a590cabc272d62ffca1427d3010aea2098f414fVikas Chaudhary status = mbox_sts_entry->out_mbox[6]; 451c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary 452c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary data_size = sizeof(mbox_sts_entry->out_mbox); 453c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary 454c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary qla4xxx_post_ping_evt_work(ha, status, mrb->pid, data_size, 455c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary (uint8_t *) mbox_sts_entry->out_mbox); 456c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary break; 457c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary 458c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary default: 459c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: invalid mbox_cmd = " 460c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary "0x%x\n", __func__, mrb->mbox_cmd)); 461c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary } 462c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary 463c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary kfree(mrb); 464c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary return; 465c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary} 466c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary 467b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar/** 468afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * qla4xxx_process_response_queue - process response queue completions 469afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * @ha: Pointer to host adapter structure. 470afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * 471afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * This routine process response queue completions in interrupt context. 472afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * Hardware_lock locked upon entry 473afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu **/ 474f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudharyvoid qla4xxx_process_response_queue(struct scsi_qla_host *ha) 475afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu{ 476afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu uint32_t count = 0; 477afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu struct srb *srb = NULL; 478afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu struct status_entry *sts_entry; 479afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 480afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* Process all responses from response queue */ 481f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary while ((ha->response_ptr->signature != RESPONSE_PROCESSED)) { 482afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu sts_entry = (struct status_entry *) ha->response_ptr; 483afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu count++; 484afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 485afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* Advance pointers for next entry */ 486afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu if (ha->response_out == (RESPONSE_QUEUE_DEPTH - 1)) { 487afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu ha->response_out = 0; 488afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu ha->response_ptr = ha->response_ring; 489afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } else { 490afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu ha->response_out++; 491afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu ha->response_ptr++; 492afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } 493afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 494afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* process entry */ 495afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu switch (sts_entry->hdr.entryType) { 496afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case ET_STATUS: 49794bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins /* Common status */ 498afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu qla4xxx_status_entry(ha, sts_entry); 499afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 500afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 501afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case ET_PASSTHRU_STATUS: 502b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar if (sts_entry->hdr.systemDefined == SD_ISCSI_PDU) 503b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar qla4xxx_passthru_status_entry(ha, 504b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar (struct passthru_status *)sts_entry); 505b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar else 506b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar ql4_printk(KERN_ERR, ha, 507b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar "%s: Invalid status received\n", 508b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar __func__); 509b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar 510afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 511afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 512afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case ET_STATUS_CONTINUATION: 51394bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins qla4xxx_status_cont_entry(ha, 51494bced3c1b371014cbd187f2df5539b13a0e3b90Karen Higgins (struct status_cont_entry *) sts_entry); 515afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 516afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 517afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case ET_COMMAND: 518afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* ISP device queue is full. Command not 519afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * accepted by ISP. Queue command for 520afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * later */ 521afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 522afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu srb = qla4xxx_del_from_active_array(ha, 523afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu le32_to_cpu(sts_entry-> 524afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu handle)); 525afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu if (srb == NULL) 526afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu goto exit_prq_invalid_handle; 527afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 528afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu DEBUG2(printk("scsi%ld: %s: FW device queue full, " 529afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu "srb %p\n", ha->host_no, __func__, srb)); 530afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 531afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* ETRY normally by sending it back with 532afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * DID_BUS_BUSY */ 533afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu srb->cmd->result = DID_BUS_BUSY << 16; 53409a0f719896659a6c32df11426e55795012c06ffVikas Chaudhary kref_put(&srb->srb_ref, qla4xxx_srb_compl); 535afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 536afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 537afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case ET_CONTINUE: 538afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* Just throw away the continuation entries */ 539afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu DEBUG2(printk("scsi%ld: %s: Continuation entry - " 540afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu "ignoring\n", ha->host_no, __func__)); 541afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 542afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 543c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary case ET_MBOX_STATUS: 544c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 545c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary "%s: mbox status IOCB\n", __func__)); 546c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary qla4xxx_mbox_status_entry(ha, 547c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary (struct mbox_status_iocb *)sts_entry); 548c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary break; 549c0b9d3f750520ad3005b99144260e486ef01b5d9Vikas Chaudhary 550afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu default: 551afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* 552afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * Invalid entry in response queue, reset RISC 553afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * firmware. 554afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu */ 555afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu DEBUG2(printk("scsi%ld: %s: Invalid entry %x in " 556afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu "response queue \n", ha->host_no, 557afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu __func__, 558afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu sts_entry->hdr.entryType)); 559afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu goto exit_prq_error; 560afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } 561f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ((struct response *)sts_entry)->signature = RESPONSE_PROCESSED; 562f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary wmb(); 563afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } 564afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 565afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* 566f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary * Tell ISP we're done with response(s). This also clears the interrupt. 567afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu */ 568f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ha->isp_ops->complete_iocb(ha); 569afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 570afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu return; 571afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 572afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajuluexit_prq_invalid_handle: 573afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu DEBUG2(printk("scsi%ld: %s: Invalid handle(srb)=%p type=%x IOCS=%x\n", 574afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu ha->host_no, __func__, srb, sts_entry->hdr.entryType, 575afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu sts_entry->completionStatus)); 576afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 577afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajuluexit_prq_error: 578f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ha->isp_ops->complete_iocb(ha); 579afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu set_bit(DPC_RESET_HA, &ha->dpc_flags); 580afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu} 581afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 582afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu/** 583026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali * qla4_83xx_loopback_in_progress: Is loopback in progress? 584026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali * @ha: Pointer to host adapter structure. 585026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali * @ret: 1 = loopback in progress, 0 = loopback not in progress 586026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali **/ 587026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javalistatic int qla4_83xx_loopback_in_progress(struct scsi_qla_host *ha) 588026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali{ 589026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali int rval = 1; 590026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali 591b37ca4183c287448ad0096381d030ca5fc788059Vikas Chaudhary if (is_qla8032(ha) || is_qla8042(ha)) { 592026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali if ((ha->idc_info.info2 & ENABLE_INTERNAL_LOOPBACK) || 593026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali (ha->idc_info.info2 & ENABLE_EXTERNAL_LOOPBACK)) { 594026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali DEBUG2(ql4_printk(KERN_INFO, ha, 595026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali "%s: Loopback diagnostics in progress\n", 596026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali __func__)); 597026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali rval = 1; 598026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali } else { 599026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali DEBUG2(ql4_printk(KERN_INFO, ha, 600026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali "%s: Loopback diagnostics not in progress\n", 601026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali __func__)); 602026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali rval = 0; 603026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali } 604026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali } 605026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali 606026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali return rval; 607026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali} 608026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali 609026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali/** 610afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * qla4xxx_isr_decode_mailbox - decodes mailbox status 611afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * @ha: Pointer to host adapter structure. 612afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * @mailbox_status: Mailbox status. 613afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * 614afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * This routine decodes the mailbox status during the ISR. 615afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * Hardware_lock locked upon entry. runs in interrupt context. 616afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu **/ 617afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulustatic void qla4xxx_isr_decode_mailbox(struct scsi_qla_host * ha, 618afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu uint32_t mbox_status) 619afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu{ 620afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu int i; 621f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary uint32_t mbox_sts[MBOX_AEN_REG_COUNT]; 6226e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary __le32 __iomem *mailbox_out; 6236e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary 624b37ca4183c287448ad0096381d030ca5fc788059Vikas Chaudhary if (is_qla8032(ha) || is_qla8042(ha)) 6256e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary mailbox_out = &ha->qla4_83xx_reg->mailbox_out[0]; 6266e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary else if (is_qla8022(ha)) 6276e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary mailbox_out = &ha->qla4_82xx_reg->mailbox_out[0]; 6286e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary else 6296e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary mailbox_out = &ha->reg->mailbox[0]; 630afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 631afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu if ((mbox_status == MBOX_STS_BUSY) || 632afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu (mbox_status == MBOX_STS_INTERMEDIATE_COMPLETION) || 633afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu (mbox_status >> 12 == MBOX_COMPLETION_STATUS)) { 634afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu ha->mbox_status[0] = mbox_status; 635afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 636afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu if (test_bit(AF_MBOX_COMMAND, &ha->flags)) { 637afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* 638afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * Copy all mailbox registers to a temporary 639afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * location and set mailbox command done flag 640afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu */ 641f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary for (i = 0; i < ha->mbox_status_count; i++) 6426e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary ha->mbox_status[i] = readl(&mailbox_out[i]); 643afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 644afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu set_bit(AF_MBOX_COMMAND_DONE, &ha->flags); 645f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 646f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary if (test_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags)) 647f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary complete(&ha->mbx_intr_comp); 648afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } 649afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } else if (mbox_status >> 12 == MBOX_ASYNC_EVENT_STATUS) { 650f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary for (i = 0; i < MBOX_AEN_REG_COUNT; i++) 6516e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary mbox_sts[i] = readl(&mailbox_out[i]); 652f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 653afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* Immediately process the AENs that don't require much work. 654afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * Only queue the database_changed AENs */ 655401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu if (ha->aen_log.count < MAX_AEN_ENTRIES) { 656401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu for (i = 0; i < MBOX_AEN_REG_COUNT; i++) 657401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu ha->aen_log.entry[ha->aen_log.count].mbox_sts[i] = 658f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary mbox_sts[i]; 659401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu ha->aen_log.count++; 660401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu } 661afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu switch (mbox_status) { 662afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case MBOX_ASTS_SYSTEM_ERROR: 663afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* Log Mailbox registers */ 664f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: System Err\n", __func__); 66591a772a4b1840fea39f0377c2cbca4cfc5be05f9Karen Higgins qla4xxx_dump_registers(ha); 66691a772a4b1840fea39f0377c2cbca4cfc5be05f9Karen Higgins 6676e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary if ((is_qla8022(ha) && ql4xdontresethba) || 668b37ca4183c287448ad0096381d030ca5fc788059Vikas Chaudhary ((is_qla8032(ha) || is_qla8042(ha)) && 669b37ca4183c287448ad0096381d030ca5fc788059Vikas Chaudhary qla4_83xx_idc_dontreset(ha))) { 670f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary DEBUG2(printk("scsi%ld: %s:Don't Reset HBA\n", 671f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ha->host_no, __func__)); 672afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } else { 673afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu set_bit(AF_GET_CRASH_RECORD, &ha->flags); 674afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu set_bit(DPC_RESET_HA, &ha->dpc_flags); 675afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } 676afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 677afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 678afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case MBOX_ASTS_REQUEST_TRANSFER_ERROR: 679afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case MBOX_ASTS_RESPONSE_TRANSFER_ERROR: 680afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case MBOX_ASTS_NVRAM_INVALID: 681afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case MBOX_ASTS_IP_ADDRESS_CHANGED: 682afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case MBOX_ASTS_DHCP_LEASE_EXPIRED: 683afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu DEBUG2(printk("scsi%ld: AEN %04x, ERROR Status, " 684afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu "Reset HA\n", ha->host_no, mbox_status)); 6856e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary if (is_qla80XX(ha)) 6864c6a794d2c0affde28f46ef5646cd41cd1a35f06Vikas Chaudhary set_bit(DPC_RESET_HA_FW_CONTEXT, 6874c6a794d2c0affde28f46ef5646cd41cd1a35f06Vikas Chaudhary &ha->dpc_flags); 6884c6a794d2c0affde28f46ef5646cd41cd1a35f06Vikas Chaudhary else 6894c6a794d2c0affde28f46ef5646cd41cd1a35f06Vikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 690afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 691afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 692afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case MBOX_ASTS_LINK_UP: 693afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu set_bit(AF_LINK_UP, &ha->flags); 694065aa1b4db63c7fa68a3e889510c4e63404a1ac7Vikas Chaudhary if (test_bit(AF_INIT_DONE, &ha->flags)) 695065aa1b4db63c7fa68a3e889510c4e63404a1ac7Vikas Chaudhary set_bit(DPC_LINK_CHANGED, &ha->dpc_flags); 696065aa1b4db63c7fa68a3e889510c4e63404a1ac7Vikas Chaudhary 697f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: LINK UP\n", __func__); 698ff884430801c08bd909fd95f6cb1a0446afd30dbVikas Chaudhary qla4xxx_post_aen_work(ha, ISCSI_EVENT_LINKUP, 699ff884430801c08bd909fd95f6cb1a0446afd30dbVikas Chaudhary sizeof(mbox_sts), 700ff884430801c08bd909fd95f6cb1a0446afd30dbVikas Chaudhary (uint8_t *) mbox_sts); 701afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 702afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 703afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case MBOX_ASTS_LINK_DOWN: 704afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu clear_bit(AF_LINK_UP, &ha->flags); 705026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali if (test_bit(AF_INIT_DONE, &ha->flags)) { 706f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary set_bit(DPC_LINK_CHANGED, &ha->dpc_flags); 707026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali qla4xxx_wake_dpc(ha); 708026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali } 709065aa1b4db63c7fa68a3e889510c4e63404a1ac7Vikas Chaudhary 710f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: LINK DOWN\n", __func__); 711ff884430801c08bd909fd95f6cb1a0446afd30dbVikas Chaudhary qla4xxx_post_aen_work(ha, ISCSI_EVENT_LINKDOWN, 712ff884430801c08bd909fd95f6cb1a0446afd30dbVikas Chaudhary sizeof(mbox_sts), 713ff884430801c08bd909fd95f6cb1a0446afd30dbVikas Chaudhary (uint8_t *) mbox_sts); 714afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 715afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 716afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case MBOX_ASTS_HEARTBEAT: 717afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu ha->seconds_since_last_heartbeat = 0; 718afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 719afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 720afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case MBOX_ASTS_DHCP_LEASE_ACQUIRED: 721afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu DEBUG2(printk("scsi%ld: AEN %04x DHCP LEASE " 722afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu "ACQUIRED\n", ha->host_no, mbox_status)); 723afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu set_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags); 724afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 725afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 726afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case MBOX_ASTS_PROTOCOL_STATISTIC_ALARM: 727afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case MBOX_ASTS_SCSI_COMMAND_PDU_REJECTED: /* Target 728afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * mode 729afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * only */ 730afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case MBOX_ASTS_UNSOLICITED_PDU_RECEIVED: /* Connection mode */ 731afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case MBOX_ASTS_IPSEC_SYSTEM_FATAL_ERROR: 732afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case MBOX_ASTS_SUBNET_STATE_CHANGE: 733185f107ef9913d9263bc9c2014d16a5a65c4894ePrasanna Mumbai case MBOX_ASTS_DUPLICATE_IP: 734afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* No action */ 735afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu DEBUG2(printk("scsi%ld: AEN %04x\n", ha->host_no, 736afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu mbox_status)); 737afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 738afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 739401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu case MBOX_ASTS_IP_ADDR_STATE_CHANGED: 740f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary printk("scsi%ld: AEN %04x, mbox_sts[2]=%04x, " 741f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary "mbox_sts[3]=%04x\n", ha->host_no, mbox_sts[0], 742f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary mbox_sts[2], mbox_sts[3]); 743f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 744f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary /* mbox_sts[2] = Old ACB state 745f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary * mbox_sts[3] = new ACB state */ 746f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary if ((mbox_sts[3] == ACB_STATE_VALID) && 747e128271b7bcb9c8955cadbf2e18f8af288979e6bPrasanna Mumbai ((mbox_sts[2] == ACB_STATE_TENTATIVE) || 748e128271b7bcb9c8955cadbf2e18f8af288979e6bPrasanna Mumbai (mbox_sts[2] == ACB_STATE_ACQUIRING))) 749401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu set_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags); 750f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary else if ((mbox_sts[3] == ACB_STATE_ACQUIRING) && 7514c6a794d2c0affde28f46ef5646cd41cd1a35f06Vikas Chaudhary (mbox_sts[2] == ACB_STATE_VALID)) { 7526e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary if (is_qla80XX(ha)) 7534c6a794d2c0affde28f46ef5646cd41cd1a35f06Vikas Chaudhary set_bit(DPC_RESET_HA_FW_CONTEXT, 7544c6a794d2c0affde28f46ef5646cd41cd1a35f06Vikas Chaudhary &ha->dpc_flags); 7554c6a794d2c0affde28f46ef5646cd41cd1a35f06Vikas Chaudhary else 7564c6a794d2c0affde28f46ef5646cd41cd1a35f06Vikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 7574c6a794d2c0affde28f46ef5646cd41cd1a35f06Vikas Chaudhary } else if ((mbox_sts[3] == ACB_STATE_UNCONFIGURED)) 75895d31262b3c1ba5b945a6e7b4f679532db622a27Vikas Chaudhary complete(&ha->disable_acb_comp); 759401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu break; 760401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu 761afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case MBOX_ASTS_MAC_ADDRESS_CHANGED: 762afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case MBOX_ASTS_DNS: 763afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* No action */ 764afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu DEBUG2(printk(KERN_INFO "scsi%ld: AEN %04x, " 765afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu "mbox_sts[1]=%04x, mbox_sts[2]=%04x\n", 766f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ha->host_no, mbox_sts[0], 767f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary mbox_sts[1], mbox_sts[2])); 768afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 769afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 770afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case MBOX_ASTS_SELF_TEST_FAILED: 771afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case MBOX_ASTS_LOGIN_FAILED: 772afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* No action */ 773afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu DEBUG2(printk("scsi%ld: AEN %04x, mbox_sts[1]=%04x, " 774afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu "mbox_sts[2]=%04x, mbox_sts[3]=%04x\n", 775f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ha->host_no, mbox_sts[0], mbox_sts[1], 776f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary mbox_sts[2], mbox_sts[3])); 777afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 778afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 779afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case MBOX_ASTS_DATABASE_CHANGED: 780afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* Queue AEN information and process it in the DPC 781afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * routine */ 782afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu if (ha->aen_q_count > 0) { 783afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 784afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* decrement available counter */ 785afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu ha->aen_q_count--; 786afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 787f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary for (i = 0; i < MBOX_AEN_REG_COUNT; i++) 788afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu ha->aen_q[ha->aen_in].mbox_sts[i] = 789f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary mbox_sts[i]; 790afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 791afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* print debug message */ 792185f107ef9913d9263bc9c2014d16a5a65c4894ePrasanna Mumbai DEBUG2(printk("scsi%ld: AEN[%d] %04x queued " 793185f107ef9913d9263bc9c2014d16a5a65c4894ePrasanna Mumbai "mb1:0x%x mb2:0x%x mb3:0x%x " 794185f107ef9913d9263bc9c2014d16a5a65c4894ePrasanna Mumbai "mb4:0x%x mb5:0x%x\n", 795185f107ef9913d9263bc9c2014d16a5a65c4894ePrasanna Mumbai ha->host_no, ha->aen_in, 796185f107ef9913d9263bc9c2014d16a5a65c4894ePrasanna Mumbai mbox_sts[0], mbox_sts[1], 797185f107ef9913d9263bc9c2014d16a5a65c4894ePrasanna Mumbai mbox_sts[2], mbox_sts[3], 798185f107ef9913d9263bc9c2014d16a5a65c4894ePrasanna Mumbai mbox_sts[4], mbox_sts[5])); 799f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 800401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu /* advance pointer */ 801401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu ha->aen_in++; 802401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu if (ha->aen_in == MAX_AEN_ENTRIES) 803401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu ha->aen_in = 0; 804afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 805afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* The DPC routine will process the aen */ 806afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu set_bit(DPC_AEN, &ha->dpc_flags); 807afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } else { 808afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu DEBUG2(printk("scsi%ld: %s: aen %04x, queue " 809afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu "overflowed! AEN LOST!!\n", 810afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu ha->host_no, __func__, 811f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary mbox_sts[0])); 812afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 813afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu DEBUG2(printk("scsi%ld: DUMP AEN QUEUE\n", 814afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu ha->host_no)); 815afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 816afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu for (i = 0; i < MAX_AEN_ENTRIES; i++) { 817afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu DEBUG2(printk("AEN[%d] %04x %04x %04x " 818f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary "%04x\n", i, mbox_sts[0], 819f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary mbox_sts[1], mbox_sts[2], 820f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary mbox_sts[3])); 821afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } 822afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } 823afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 824afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 8256434080b127088606e03d2ecfe5ffdd797e38d63Shyam Sundar case MBOX_ASTS_TXSCVR_INSERTED: 8266434080b127088606e03d2ecfe5ffdd797e38d63Shyam Sundar DEBUG2(printk(KERN_WARNING 8276434080b127088606e03d2ecfe5ffdd797e38d63Shyam Sundar "scsi%ld: AEN %04x Transceiver" 8286434080b127088606e03d2ecfe5ffdd797e38d63Shyam Sundar " inserted\n", ha->host_no, mbox_sts[0])); 8296434080b127088606e03d2ecfe5ffdd797e38d63Shyam Sundar break; 8306434080b127088606e03d2ecfe5ffdd797e38d63Shyam Sundar 8316434080b127088606e03d2ecfe5ffdd797e38d63Shyam Sundar case MBOX_ASTS_TXSCVR_REMOVED: 8326434080b127088606e03d2ecfe5ffdd797e38d63Shyam Sundar DEBUG2(printk(KERN_WARNING 8336434080b127088606e03d2ecfe5ffdd797e38d63Shyam Sundar "scsi%ld: AEN %04x Transceiver" 8346434080b127088606e03d2ecfe5ffdd797e38d63Shyam Sundar " removed\n", ha->host_no, mbox_sts[0])); 8356434080b127088606e03d2ecfe5ffdd797e38d63Shyam Sundar break; 8366434080b127088606e03d2ecfe5ffdd797e38d63Shyam Sundar 8379cb33f184e5d57054caf24c2bd657517e557367cNilesh Javali case MBOX_ASTS_IDC_REQUEST_NOTIFICATION: 838320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali { 839320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali uint32_t opcode; 840b37ca4183c287448ad0096381d030ca5fc788059Vikas Chaudhary if (is_qla8032(ha) || is_qla8042(ha)) { 841320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali DEBUG2(ql4_printk(KERN_INFO, ha, 842320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali "scsi%ld: AEN %04x, mbox_sts[1]=%08x, mbox_sts[2]=%08x, mbox_sts[3]=%08x, mbox_sts[4]=%08x\n", 843320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali ha->host_no, mbox_sts[0], 844320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali mbox_sts[1], mbox_sts[2], 845320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali mbox_sts[3], mbox_sts[4])); 846320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali opcode = mbox_sts[1] >> 16; 847320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali if ((opcode == MBOX_CMD_SET_PORT_CONFIG) || 848320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali (opcode == MBOX_CMD_PORT_RESET)) { 849320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali set_bit(DPC_POST_IDC_ACK, 850320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali &ha->dpc_flags); 851320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali ha->idc_info.request_desc = mbox_sts[1]; 852320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali ha->idc_info.info1 = mbox_sts[2]; 853320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali ha->idc_info.info2 = mbox_sts[3]; 854320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali ha->idc_info.info3 = mbox_sts[4]; 855320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali qla4xxx_wake_dpc(ha); 856320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali } 857320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali } 858320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali break; 859320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali } 860320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali 861320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali case MBOX_ASTS_IDC_COMPLETE: 862b37ca4183c287448ad0096381d030ca5fc788059Vikas Chaudhary if (is_qla8032(ha) || is_qla8042(ha)) { 863320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali DEBUG2(ql4_printk(KERN_INFO, ha, 864320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali "scsi%ld: AEN %04x, mbox_sts[1]=%08x, mbox_sts[2]=%08x, mbox_sts[3]=%08x, mbox_sts[4]=%08x\n", 865320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali ha->host_no, mbox_sts[0], 866320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali mbox_sts[1], mbox_sts[2], 867320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali mbox_sts[3], mbox_sts[4])); 868320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali DEBUG2(ql4_printk(KERN_INFO, ha, 869320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali "scsi:%ld: AEN %04x IDC Complete notification\n", 870320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali ha->host_no, mbox_sts[0])); 871026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali 872026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali if (qla4_83xx_loopback_in_progress(ha)) 873026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali set_bit(AF_LOOPBACK, &ha->flags); 874026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali else 875026fbd3aaae796d2457898497374b68f3477ee2fNilesh Javali clear_bit(AF_LOOPBACK, &ha->flags); 876320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali } 877320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali break; 878320a61de9dc9ca1ed2b69c9a95968e0207c348dfNilesh Javali 87978a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary case MBOX_ASTS_IPV6_DEFAULT_ROUTER_CHANGED: 88078a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 88178a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary "scsi%ld: AEN %04x, mbox_sts[1]=%08x, mbox_sts[2]=%08x, mbox_sts[3]=%08x, mbox_sts[4]=%08x mbox_sts[5]=%08x\n", 88278a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary ha->host_no, mbox_sts[0], mbox_sts[1], 88378a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary mbox_sts[2], mbox_sts[3], mbox_sts[4], 88478a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary mbox_sts[5])); 88578a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 88678a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary "scsi%ld: AEN %04x Received IPv6 default router changed notification\n", 88778a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary ha->host_no, mbox_sts[0])); 88878a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary break; 88978a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary 89078a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary case MBOX_ASTS_INITIALIZATION_FAILED: 89178a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 89278a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary "scsi%ld: AEN %04x, mbox_sts[3]=%08x\n", 89378a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary ha->host_no, mbox_sts[0], 89478a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary mbox_sts[3])); 89578a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary break; 89678a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary 89778a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary case MBOX_ASTS_SYSTEM_WARNING_EVENT: 89878a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary DEBUG2(ql4_printk(KERN_WARNING, ha, 89978a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary "scsi%ld: AEN %04x, mbox_sts[1]=%08x, mbox_sts[2]=%08x, mbox_sts[3]=%08x, mbox_sts[4]=%08x mbox_sts[5]=%08x\n", 90078a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary ha->host_no, mbox_sts[0], mbox_sts[1], 90178a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary mbox_sts[2], mbox_sts[3], mbox_sts[4], 90278a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary mbox_sts[5])); 90378a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary break; 90478a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary 90578a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary case MBOX_ASTS_DCBX_CONF_CHANGE: 90678a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 90778a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary "scsi%ld: AEN %04x, mbox_sts[1]=%08x, mbox_sts[2]=%08x, mbox_sts[3]=%08x, mbox_sts[4]=%08x mbox_sts[5]=%08x\n", 90878a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary ha->host_no, mbox_sts[0], mbox_sts[1], 90978a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary mbox_sts[2], mbox_sts[3], mbox_sts[4], 91078a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary mbox_sts[5])); 91178a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 91278a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary "scsi%ld: AEN %04x Received DCBX configuration changed notification\n", 91378a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary ha->host_no, mbox_sts[0])); 91478a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary break; 91578a4544885037ad95ca1962ffeda767d60dd78b1Vikas Chaudhary 916afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu default: 917afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu DEBUG2(printk(KERN_WARNING 918afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu "scsi%ld: AEN %04x UNKNOWN\n", 919f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ha->host_no, mbox_sts[0])); 920afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 921afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } 922afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } else { 923afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu DEBUG2(printk("scsi%ld: Unknown mailbox status %08X\n", 924afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu ha->host_no, mbox_status)); 925afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 926afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu ha->mbox_status[0] = mbox_status; 927afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } 928afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu} 929afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 9306e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudharyvoid qla4_83xx_interrupt_service_routine(struct scsi_qla_host *ha, 9316e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary uint32_t intr_status) 9326e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary{ 9336e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary /* Process mailbox/asynch event interrupt.*/ 9346e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary if (intr_status) { 9356e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary qla4xxx_isr_decode_mailbox(ha, 9366e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary readl(&ha->qla4_83xx_reg->mailbox_out[0])); 9376e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary /* clear the interrupt */ 9386e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary writel(0, &ha->qla4_83xx_reg->risc_intr); 9396e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary } else { 9406e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary qla4xxx_process_response_queue(ha); 9416e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary } 9426e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary 9436e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary /* clear the interrupt */ 9446e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary writel(0, &ha->qla4_83xx_reg->mb_int_mask); 9456e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary} 9466e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary 947afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu/** 948f8086f4fd462195a5a824c851997bd12ffceae00Vikas Chaudhary * qla4_82xx_interrupt_service_routine - isr 949f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary * @ha: pointer to host adapter structure. 950f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary * 951f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary * This is the main interrupt service routine. 952f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary * hardware_lock locked upon entry. runs in interrupt context. 953f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary **/ 954f8086f4fd462195a5a824c851997bd12ffceae00Vikas Chaudharyvoid qla4_82xx_interrupt_service_routine(struct scsi_qla_host *ha, 955f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary uint32_t intr_status) 956f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary{ 957f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary /* Process response queue interrupt. */ 958f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary if (intr_status & HSRX_RISC_IOCB_INT) 959f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary qla4xxx_process_response_queue(ha); 960f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 961f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary /* Process mailbox/asynch event interrupt.*/ 962f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary if (intr_status & HSRX_RISC_MB_INT) 963f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary qla4xxx_isr_decode_mailbox(ha, 9647664a1fd76d2eb49b07443f5fc46c75f6a95c98bVikas Chaudhary readl(&ha->qla4_82xx_reg->mailbox_out[0])); 965f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 966f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary /* clear the interrupt */ 9677664a1fd76d2eb49b07443f5fc46c75f6a95c98bVikas Chaudhary writel(0, &ha->qla4_82xx_reg->host_int); 9687664a1fd76d2eb49b07443f5fc46c75f6a95c98bVikas Chaudhary readl(&ha->qla4_82xx_reg->host_int); 969f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary} 970f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 971f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary/** 972afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * qla4xxx_interrupt_service_routine - isr 973afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * @ha: pointer to host adapter structure. 974afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * 975afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * This is the main interrupt service routine. 976afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * hardware_lock locked upon entry. runs in interrupt context. 977afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu **/ 978afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajuluvoid qla4xxx_interrupt_service_routine(struct scsi_qla_host * ha, 979afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu uint32_t intr_status) 980afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu{ 981afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* Process response queue interrupt. */ 982afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu if (intr_status & CSR_SCSI_COMPLETION_INTR) 983afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu qla4xxx_process_response_queue(ha); 984afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 985afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* Process mailbox/asynch event interrupt.*/ 986afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu if (intr_status & CSR_SCSI_PROCESSOR_INTR) { 987afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu qla4xxx_isr_decode_mailbox(ha, 988afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu readl(&ha->reg->mailbox[0])); 989afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 990afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* Clear Mailbox Interrupt */ 991afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), 992afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu &ha->reg->ctrl_status); 993afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu readl(&ha->reg->ctrl_status); 994afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } 995afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu} 996afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 997afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu/** 998f8086f4fd462195a5a824c851997bd12ffceae00Vikas Chaudhary * qla4_82xx_spurious_interrupt - processes spurious interrupt 999f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary * @ha: pointer to host adapter structure. 1000f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary * @reqs_count: . 1001f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary * 1002f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary **/ 1003f8086f4fd462195a5a824c851997bd12ffceae00Vikas Chaudharystatic void qla4_82xx_spurious_interrupt(struct scsi_qla_host *ha, 1004f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary uint8_t reqs_count) 1005f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary{ 1006f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary if (reqs_count) 1007f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary return; 1008f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1009f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "Spurious Interrupt\n")); 1010f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary if (is_qla8022(ha)) { 10117664a1fd76d2eb49b07443f5fc46c75f6a95c98bVikas Chaudhary writel(0, &ha->qla4_82xx_reg->host_int); 1012f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary if (test_bit(AF_INTx_ENABLED, &ha->flags)) 1013f8086f4fd462195a5a824c851997bd12ffceae00Vikas Chaudhary qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 1014f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 0xfbff); 1015f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary } 1016f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ha->spurious_int_count++; 1017f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary} 1018f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1019f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary/** 1020afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * qla4xxx_intr_handler - hardware interrupt handler. 1021afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * @irq: Unused 1022afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * @dev_id: Pointer to host adapter structure 1023afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu **/ 10247d12e780e003f93433d49ce78cfedf4b4c52adc5David Howellsirqreturn_t qla4xxx_intr_handler(int irq, void *dev_id) 1025afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu{ 1026afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu struct scsi_qla_host *ha; 1027afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu uint32_t intr_status; 1028afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu unsigned long flags = 0; 1029afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu uint8_t reqs_count = 0; 1030afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 1031afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu ha = (struct scsi_qla_host *) dev_id; 1032afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu if (!ha) { 1033afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu DEBUG2(printk(KERN_INFO 1034afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu "qla4xxx: Interrupt with NULL host ptr\n")); 1035afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu return IRQ_NONE; 1036afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } 1037afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 1038afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1039afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 1040d915058f48745c0d5c4582566e5aa63867264f81David C Somayajulu ha->isr_count++; 1041afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* 1042afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * Repeatedly service interrupts up to a maximum of 1043afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * MAX_REQS_SERVICED_PER_INTR 1044afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu */ 1045afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu while (1) { 1046afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* 1047afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * Read interrupt status 1048afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu */ 1049f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary if (ha->isp_ops->rd_shdw_rsp_q_in(ha) != 1050afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu ha->response_out) 1051afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu intr_status = CSR_SCSI_COMPLETION_INTR; 1052afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu else 1053afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu intr_status = readl(&ha->reg->ctrl_status); 1054afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 1055afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu if ((intr_status & 1056f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary (CSR_SCSI_RESET_INTR|CSR_FATAL_ERROR|INTR_PENDING)) == 0) { 1057afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu if (reqs_count == 0) 1058afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu ha->spurious_int_count++; 1059afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 1060afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } 1061afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 1062afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu if (intr_status & CSR_FATAL_ERROR) { 1063afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu DEBUG2(printk(KERN_INFO "scsi%ld: Fatal Error, " 1064afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu "Status 0x%04x\n", ha->host_no, 1065afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu readl(isp_port_error_status (ha)))); 1066afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 1067afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* Issue Soft Reset to clear this error condition. 1068afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * This will prevent the RISC from repeatedly 1069afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * interrupting the driver; thus, allowing the DPC to 1070afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * get scheduled to continue error recovery. 1071afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * NOTE: Disabling RISC interrupts does not work in 1072afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * this case, as CSR_FATAL_ERROR overrides 1073afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * CSR_SCSI_INTR_ENABLE */ 1074afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu if ((readl(&ha->reg->ctrl_status) & 1075afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu CSR_SCSI_RESET_INTR) == 0) { 1076afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu writel(set_rmask(CSR_SOFT_RESET), 1077afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu &ha->reg->ctrl_status); 1078afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu readl(&ha->reg->ctrl_status); 1079afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } 1080afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 1081afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu writel(set_rmask(CSR_FATAL_ERROR), 1082afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu &ha->reg->ctrl_status); 1083afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu readl(&ha->reg->ctrl_status); 1084afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 1085afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu __qla4xxx_disable_intrs(ha); 1086afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 1087afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu set_bit(DPC_RESET_HA, &ha->dpc_flags); 1088afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 1089afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 1090afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } else if (intr_status & CSR_SCSI_RESET_INTR) { 1091afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu clear_bit(AF_ONLINE, &ha->flags); 1092afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu __qla4xxx_disable_intrs(ha); 1093afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 1094afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu writel(set_rmask(CSR_SCSI_RESET_INTR), 1095afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu &ha->reg->ctrl_status); 1096afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu readl(&ha->reg->ctrl_status); 1097afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 10987eece5a084264c1bff908b0d6a1b176b39dd272fKaren Higgins if (!test_bit(AF_HA_REMOVAL, &ha->flags)) 1099477ffb9d8732f30e7ab2d20f6ed0c22bad37a4a5David C Somayajulu set_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 1100afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 1101afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 1102afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } else if (intr_status & INTR_PENDING) { 1103f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ha->isp_ops->interrupt_service_routine(ha, intr_status); 1104afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu ha->total_io_count++; 1105afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu if (++reqs_count == MAX_REQS_SERVICED_PER_INTR) 1106afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 1107f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary } 1108f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary } 1109f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1110f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary spin_unlock_irqrestore(&ha->hardware_lock, flags); 1111f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1112f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary return IRQ_HANDLED; 1113f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary} 1114f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1115f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary/** 1116f8086f4fd462195a5a824c851997bd12ffceae00Vikas Chaudhary * qla4_82xx_intr_handler - hardware interrupt handler. 1117f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary * @irq: Unused 1118f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary * @dev_id: Pointer to host adapter structure 1119f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary **/ 1120f8086f4fd462195a5a824c851997bd12ffceae00Vikas Chaudharyirqreturn_t qla4_82xx_intr_handler(int irq, void *dev_id) 1121f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary{ 1122f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary struct scsi_qla_host *ha = dev_id; 1123f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary uint32_t intr_status; 1124f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary uint32_t status; 1125f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary unsigned long flags = 0; 1126f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary uint8_t reqs_count = 0; 1127f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 11282232be0d5707cd331b92027c0fd7ea5e843c2121Lalit Chandivade if (unlikely(pci_channel_offline(ha->pdev))) 11292232be0d5707cd331b92027c0fd7ea5e843c2121Lalit Chandivade return IRQ_HANDLED; 11302232be0d5707cd331b92027c0fd7ea5e843c2121Lalit Chandivade 1131f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ha->isr_count++; 1132f8086f4fd462195a5a824c851997bd12ffceae00Vikas Chaudhary status = qla4_82xx_rd_32(ha, ISR_INT_VECTOR); 1133f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary if (!(status & ha->nx_legacy_intr.int_vec_bit)) 1134f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary return IRQ_NONE; 1135f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1136f8086f4fd462195a5a824c851997bd12ffceae00Vikas Chaudhary status = qla4_82xx_rd_32(ha, ISR_INT_STATE_REG); 1137f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary if (!ISR_IS_LEGACY_INTR_TRIGGERED(status)) { 113833338e31839fe45fa794bcc227d292dd7fab786cVikas Chaudhary DEBUG7(ql4_printk(KERN_INFO, ha, 113933338e31839fe45fa794bcc227d292dd7fab786cVikas Chaudhary "%s legacy Int not triggered\n", __func__)); 1140f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary return IRQ_NONE; 1141f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary } 1142f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1143f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary /* clear the interrupt */ 1144f8086f4fd462195a5a824c851997bd12ffceae00Vikas Chaudhary qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_status_reg, 0xffffffff); 1145f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1146f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary /* read twice to ensure write is flushed */ 1147f8086f4fd462195a5a824c851997bd12ffceae00Vikas Chaudhary qla4_82xx_rd_32(ha, ISR_INT_VECTOR); 1148f8086f4fd462195a5a824c851997bd12ffceae00Vikas Chaudhary qla4_82xx_rd_32(ha, ISR_INT_VECTOR); 1149f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1150f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary spin_lock_irqsave(&ha->hardware_lock, flags); 1151f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary while (1) { 11527664a1fd76d2eb49b07443f5fc46c75f6a95c98bVikas Chaudhary if (!(readl(&ha->qla4_82xx_reg->host_int) & 1153f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ISRX_82XX_RISC_INT)) { 1154f8086f4fd462195a5a824c851997bd12ffceae00Vikas Chaudhary qla4_82xx_spurious_interrupt(ha, reqs_count); 1155f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary break; 1156f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary } 11577664a1fd76d2eb49b07443f5fc46c75f6a95c98bVikas Chaudhary intr_status = readl(&ha->qla4_82xx_reg->host_status); 1158f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary if ((intr_status & 1159f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary (HSRX_RISC_MB_INT | HSRX_RISC_IOCB_INT)) == 0) { 1160f8086f4fd462195a5a824c851997bd12ffceae00Vikas Chaudhary qla4_82xx_spurious_interrupt(ha, reqs_count); 1161f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary break; 1162f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary } 1163f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1164f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ha->isp_ops->interrupt_service_routine(ha, intr_status); 1165f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1166f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary /* Enable Interrupt */ 1167f8086f4fd462195a5a824c851997bd12ffceae00Vikas Chaudhary qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff); 1168afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 1169f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary if (++reqs_count == MAX_REQS_SERVICED_PER_INTR) 1170f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary break; 1171f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary } 1172f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1173f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary spin_unlock_irqrestore(&ha->hardware_lock, flags); 1174f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary return IRQ_HANDLED; 1175f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary} 1176f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 11776e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary#define LEG_INT_PTR_B31 (1 << 31) 11786e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary#define LEG_INT_PTR_B30 (1 << 30) 11796e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary#define PF_BITS_MASK (0xF << 16) 11806e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary 11816e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary/** 11826e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary * qla4_83xx_intr_handler - hardware interrupt handler. 11836e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary * @irq: Unused 11846e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary * @dev_id: Pointer to host adapter structure 11856e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary **/ 11866e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudharyirqreturn_t qla4_83xx_intr_handler(int irq, void *dev_id) 11876e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary{ 11886e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary struct scsi_qla_host *ha = dev_id; 11896e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary uint32_t leg_int_ptr = 0; 11906e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary unsigned long flags = 0; 11916e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary 11926e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary ha->isr_count++; 11936e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary leg_int_ptr = readl(&ha->qla4_83xx_reg->leg_int_ptr); 11946e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary 11956e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary /* Legacy interrupt is valid if bit31 of leg_int_ptr is set */ 11966e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary if (!(leg_int_ptr & LEG_INT_PTR_B31)) { 119733338e31839fe45fa794bcc227d292dd7fab786cVikas Chaudhary DEBUG7(ql4_printk(KERN_ERR, ha, 1198ff2477bacaf26b4733acebc1a65add4e433ef062Nilesh Javali "%s: Legacy Interrupt Bit 31 not set, spurious interrupt!\n", 1199ff2477bacaf26b4733acebc1a65add4e433ef062Nilesh Javali __func__)); 12006e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary return IRQ_NONE; 12016e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary } 12026e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary 12036e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary /* Validate the PCIE function ID set in leg_int_ptr bits [19..16] */ 12046e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary if ((leg_int_ptr & PF_BITS_MASK) != ha->pf_bit) { 120533338e31839fe45fa794bcc227d292dd7fab786cVikas Chaudhary DEBUG7(ql4_printk(KERN_ERR, ha, 1206ff2477bacaf26b4733acebc1a65add4e433ef062Nilesh Javali "%s: Incorrect function ID 0x%x in legacy interrupt register, ha->pf_bit = 0x%x\n", 1207ff2477bacaf26b4733acebc1a65add4e433ef062Nilesh Javali __func__, (leg_int_ptr & PF_BITS_MASK), 1208ff2477bacaf26b4733acebc1a65add4e433ef062Nilesh Javali ha->pf_bit)); 12096e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary return IRQ_NONE; 12106e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary } 12116e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary 12126e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary /* To de-assert legacy interrupt, write 0 to Legacy Interrupt Trigger 12136e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary * Control register and poll till Legacy Interrupt Pointer register 12146e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary * bit30 is 0. 12156e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary */ 12166e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary writel(0, &ha->qla4_83xx_reg->leg_int_trig); 12176e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary do { 12186e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary leg_int_ptr = readl(&ha->qla4_83xx_reg->leg_int_ptr); 12196e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary if ((leg_int_ptr & PF_BITS_MASK) != ha->pf_bit) 12206e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary break; 12216e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary } while (leg_int_ptr & LEG_INT_PTR_B30); 12226e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary 12236e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary spin_lock_irqsave(&ha->hardware_lock, flags); 12246e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary leg_int_ptr = readl(&ha->qla4_83xx_reg->risc_intr); 12256e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary ha->isp_ops->interrupt_service_routine(ha, leg_int_ptr); 12266e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary spin_unlock_irqrestore(&ha->hardware_lock, flags); 12276e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary 12286e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary return IRQ_HANDLED; 12296e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary} 12306e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary 1231f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudharyirqreturn_t 1232f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudharyqla4_8xxx_msi_handler(int irq, void *dev_id) 1233f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary{ 1234f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary struct scsi_qla_host *ha; 1235f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1236f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ha = (struct scsi_qla_host *) dev_id; 1237f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary if (!ha) { 1238f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary DEBUG2(printk(KERN_INFO 1239f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary "qla4xxx: MSIX: Interrupt with NULL host ptr\n")); 1240f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary return IRQ_NONE; 1241f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary } 1242f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1243f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ha->isr_count++; 1244f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary /* clear the interrupt */ 1245f8086f4fd462195a5a824c851997bd12ffceae00Vikas Chaudhary qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_status_reg, 0xffffffff); 1246f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1247f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary /* read twice to ensure write is flushed */ 1248f8086f4fd462195a5a824c851997bd12ffceae00Vikas Chaudhary qla4_82xx_rd_32(ha, ISR_INT_VECTOR); 1249f8086f4fd462195a5a824c851997bd12ffceae00Vikas Chaudhary qla4_82xx_rd_32(ha, ISR_INT_VECTOR); 1250f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1251f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary return qla4_8xxx_default_intr_handler(irq, dev_id); 1252f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary} 1253f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 12546e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudharystatic irqreturn_t qla4_83xx_mailbox_intr_handler(int irq, void *dev_id) 12556e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary{ 12566e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary struct scsi_qla_host *ha = dev_id; 12576e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary unsigned long flags; 12586e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary uint32_t ival = 0; 12596e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary 12606e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary spin_lock_irqsave(&ha->hardware_lock, flags); 12616e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary 12626e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary ival = readl(&ha->qla4_83xx_reg->risc_intr); 12636e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary if (ival == 0) { 12646e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary ql4_printk(KERN_INFO, ha, 12656e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary "%s: It is a spurious mailbox interrupt!\n", 12666e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary __func__); 12676e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary ival = readl(&ha->qla4_83xx_reg->mb_int_mask); 12686e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary ival &= ~INT_MASK_FW_MB; 12696e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary writel(ival, &ha->qla4_83xx_reg->mb_int_mask); 12706e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary goto exit; 12716e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary } 12726e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary 12736e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary qla4xxx_isr_decode_mailbox(ha, 12746e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary readl(&ha->qla4_83xx_reg->mailbox_out[0])); 12756e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary writel(0, &ha->qla4_83xx_reg->risc_intr); 12766e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary ival = readl(&ha->qla4_83xx_reg->mb_int_mask); 12776e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary ival &= ~INT_MASK_FW_MB; 12786e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary writel(ival, &ha->qla4_83xx_reg->mb_int_mask); 12796e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary ha->isr_count++; 12806e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudharyexit: 12816e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary spin_unlock_irqrestore(&ha->hardware_lock, flags); 12826e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary return IRQ_HANDLED; 12836e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary} 12846e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary 1285f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary/** 1286f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary * qla4_8xxx_default_intr_handler - hardware interrupt handler. 1287f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary * @irq: Unused 1288f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary * @dev_id: Pointer to host adapter structure 1289f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary * 1290f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary * This interrupt handler is called directly for MSI-X, and 1291f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary * called indirectly for MSI. 1292f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary **/ 1293f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudharyirqreturn_t 1294f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudharyqla4_8xxx_default_intr_handler(int irq, void *dev_id) 1295f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary{ 1296f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary struct scsi_qla_host *ha = dev_id; 1297f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary unsigned long flags; 1298f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary uint32_t intr_status; 1299f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary uint8_t reqs_count = 0; 1300f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1301b37ca4183c287448ad0096381d030ca5fc788059Vikas Chaudhary if (is_qla8032(ha) || is_qla8042(ha)) { 13026e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary qla4_83xx_mailbox_intr_handler(irq, dev_id); 13036e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary } else { 13046e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary spin_lock_irqsave(&ha->hardware_lock, flags); 13056e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary while (1) { 13066e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary if (!(readl(&ha->qla4_82xx_reg->host_int) & 13076e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary ISRX_82XX_RISC_INT)) { 13086e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary qla4_82xx_spurious_interrupt(ha, reqs_count); 13096e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary break; 13106e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary } 1311f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 13126e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary intr_status = readl(&ha->qla4_82xx_reg->host_status); 13136e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary if ((intr_status & 13146e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary (HSRX_RISC_MB_INT | HSRX_RISC_IOCB_INT)) == 0) { 13156e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary qla4_82xx_spurious_interrupt(ha, reqs_count); 13166e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary break; 13176e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary } 1318f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 13196e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary ha->isp_ops->interrupt_service_routine(ha, intr_status); 1320f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 13216e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary if (++reqs_count == MAX_REQS_SERVICED_PER_INTR) 13226e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary break; 13236e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary } 13246e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary ha->isr_count++; 13256e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary spin_unlock_irqrestore(&ha->hardware_lock, flags); 1326afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } 1327f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary return IRQ_HANDLED; 1328f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary} 1329afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 1330f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudharyirqreturn_t 1331f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudharyqla4_8xxx_msix_rsp_q(int irq, void *dev_id) 1332f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary{ 1333f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary struct scsi_qla_host *ha = dev_id; 1334f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary unsigned long flags; 13356e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary uint32_t ival = 0; 1336f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1337f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary spin_lock_irqsave(&ha->hardware_lock, flags); 1338b37ca4183c287448ad0096381d030ca5fc788059Vikas Chaudhary if (is_qla8032(ha) || is_qla8042(ha)) { 13396e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary ival = readl(&ha->qla4_83xx_reg->iocb_int_mask); 13406e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary if (ival == 0) { 13416e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: It is a spurious iocb interrupt!\n", 13426e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary __func__); 13436e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary goto exit_msix_rsp_q; 13446e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary } 13456e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary qla4xxx_process_response_queue(ha); 13466e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary writel(0, &ha->qla4_83xx_reg->iocb_int_mask); 13476e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary } else { 13486e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary qla4xxx_process_response_queue(ha); 13496e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary writel(0, &ha->qla4_82xx_reg->host_int); 13506e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary } 1351f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ha->isr_count++; 13526e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudharyexit_msix_rsp_q: 13536e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary spin_unlock_irqrestore(&ha->hardware_lock, flags); 1354afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu return IRQ_HANDLED; 1355afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu} 1356afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 1357afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu/** 1358afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * qla4xxx_process_aen - processes AENs generated by firmware 1359afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * @ha: pointer to host adapter structure. 1360afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * @process_aen: type of AENs to process 1361afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * 1362afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * Processes specific types of Asynchronous Events generated by firmware. 1363afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * The type of AENs to process is specified by process_aen and can be 1364afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * PROCESS_ALL_AENS 0 1365afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * FLUSH_DDB_CHANGED_AENS 1 1366afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu * RELOGIN_DDB_CHANGED_AENS 2 1367afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu **/ 1368afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajuluvoid qla4xxx_process_aen(struct scsi_qla_host * ha, uint8_t process_aen) 1369afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu{ 1370afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu uint32_t mbox_sts[MBOX_AEN_REG_COUNT]; 1371afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu struct aen *aen; 1372afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu int i; 1373afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu unsigned long flags; 1374afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 1375afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1376afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu while (ha->aen_out != ha->aen_in) { 1377afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu aen = &ha->aen_q[ha->aen_out]; 1378afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu /* copy aen information to local structure */ 1379afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu for (i = 0; i < MBOX_AEN_REG_COUNT; i++) 1380afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu mbox_sts[i] = aen->mbox_sts[i]; 1381afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 1382401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu ha->aen_q_count++; 1383401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu ha->aen_out++; 1384401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu 1385401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu if (ha->aen_out == MAX_AEN_ENTRIES) 1386401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu ha->aen_out = 0; 1387401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu 1388afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1389afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 1390401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu DEBUG2(printk("qla4xxx(%ld): AEN[%d]=0x%08x, mbx1=0x%08x mbx2=0x%08x" 1391401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu " mbx3=0x%08x mbx4=0x%08x\n", ha->host_no, 1392401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu (ha->aen_out ? (ha->aen_out-1): (MAX_AEN_ENTRIES-1)), 1393401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu mbox_sts[0], mbox_sts[1], mbox_sts[2], 1394401425b1ea005b39dcc544bffea833f338ba84f6David C Somayajulu mbox_sts[3], mbox_sts[4])); 1395afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 1396afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu switch (mbox_sts[0]) { 1397afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu case MBOX_ASTS_DATABASE_CHANGED: 1398b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar switch (process_aen) { 1399b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar case FLUSH_DDB_CHANGED_AENS: 1400afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu DEBUG2(printk("scsi%ld: AEN[%d] %04x, index " 1401afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu "[%d] state=%04x FLUSHED!\n", 1402afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu ha->host_no, ha->aen_out, 1403afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu mbox_sts[0], mbox_sts[2], 1404afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu mbox_sts[3])); 1405afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu break; 1406b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar case PROCESS_ALL_AENS: 1407b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar default: 1408b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar /* Specific device. */ 1409b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar if (mbox_sts[1] == 1) 1410b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar qla4xxx_process_ddb_changed(ha, 1411b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar mbox_sts[2], mbox_sts[3], 1412b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar mbox_sts[4]); 1413b3a271a94d0034dd3bab10b8d8cd432843be629eManish Rangankar break; 1414afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } 1415afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } 1416afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1417afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu } 1418afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1419afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu} 1420afaf5a2d341d33b66b47c2716a263ce593460a08David Somayajulu 1421f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudharyint qla4xxx_request_irqs(struct scsi_qla_host *ha) 1422f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary{ 1423f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary int ret; 1424f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1425ee996a691752ae55d26c1dd6de7421c1eb64cffbVikas Chaudhary if (is_qla40XX(ha)) 1426f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary goto try_intx; 1427f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 14286e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary if (ql4xenablemsix == 2) { 1429b37ca4183c287448ad0096381d030ca5fc788059Vikas Chaudhary /* Note: MSI Interrupts not supported for ISP8324 and ISP8042 */ 1430b37ca4183c287448ad0096381d030ca5fc788059Vikas Chaudhary if (is_qla8032(ha) || is_qla8042(ha)) { 1431b37ca4183c287448ad0096381d030ca5fc788059Vikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: MSI Interrupts not supported for ISP%04x, Falling back-to INTx mode\n", 1432b37ca4183c287448ad0096381d030ca5fc788059Vikas Chaudhary __func__, ha->pdev->device); 14336e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary goto try_intx; 14346e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary } 1435f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary goto try_msi; 14366e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary } 1437f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1438f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary if (ql4xenablemsix == 0 || ql4xenablemsix != 1) 1439f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary goto try_intx; 1440f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1441f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary /* Trying MSI-X */ 1442f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ret = qla4_8xxx_enable_msix(ha); 1443f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary if (!ret) { 1444f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 1445f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary "MSI-X: Enabled (0x%X).\n", ha->revision_id)); 1446f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary goto irq_attached; 14476e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary } else { 1448b37ca4183c287448ad0096381d030ca5fc788059Vikas Chaudhary if (is_qla8032(ha) || is_qla8042(ha)) { 1449b37ca4183c287448ad0096381d030ca5fc788059Vikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: ISP%04x: MSI-X: Falling back-to INTx mode. ret = %d\n", 1450b37ca4183c287448ad0096381d030ca5fc788059Vikas Chaudhary __func__, ha->pdev->device, ret); 14516e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary goto try_intx; 14526e7b429259fc0b7f2d9b1147466656b34d114815Vikas Chaudhary } 1453f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary } 1454f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1455f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ql4_printk(KERN_WARNING, ha, 1456f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary "MSI-X: Falling back-to MSI mode -- %d.\n", ret); 1457f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1458f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudharytry_msi: 1459f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary /* Trying MSI */ 1460f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ret = pci_enable_msi(ha->pdev); 1461f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary if (!ret) { 1462f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ret = request_irq(ha->pdev->irq, qla4_8xxx_msi_handler, 146361391d314e856030b2b40b5d6ea22b93de0f1fedShyam Sundar 0, DRIVER_NAME, ha); 1464f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary if (!ret) { 1465f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "MSI: Enabled.\n")); 1466f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary set_bit(AF_MSI_ENABLED, &ha->flags); 1467f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary goto irq_attached; 1468f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary } else { 1469f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ql4_printk(KERN_WARNING, ha, 1470f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary "MSI: Failed to reserve interrupt %d " 1471f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary "already in use.\n", ha->pdev->irq); 1472f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary pci_disable_msi(ha->pdev); 1473f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary } 1474f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary } 1475f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1476109a008bfe73322c1e2b16a7d23eb9899afe4352Vikas Chaudhary /* 1477109a008bfe73322c1e2b16a7d23eb9899afe4352Vikas Chaudhary * Prevent interrupts from falling back to INTx mode in cases where 1478109a008bfe73322c1e2b16a7d23eb9899afe4352Vikas Chaudhary * interrupts cannot get acquired through MSI-X or MSI mode. 1479109a008bfe73322c1e2b16a7d23eb9899afe4352Vikas Chaudhary */ 1480109a008bfe73322c1e2b16a7d23eb9899afe4352Vikas Chaudhary if (is_qla8022(ha)) { 1481109a008bfe73322c1e2b16a7d23eb9899afe4352Vikas Chaudhary ql4_printk(KERN_WARNING, ha, "IRQ not attached -- %d.\n", ret); 1482109a008bfe73322c1e2b16a7d23eb9899afe4352Vikas Chaudhary goto irq_not_attached; 1483109a008bfe73322c1e2b16a7d23eb9899afe4352Vikas Chaudhary } 1484f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudharytry_intx: 1485f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary /* Trying INTx */ 1486f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler, 14873e1350c4dc8900476c4db2066c00f13e9e939817Vikas Chaudhary IRQF_SHARED, DRIVER_NAME, ha); 1488f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary if (!ret) { 1489f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "INTx: Enabled.\n")); 1490f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary set_bit(AF_INTx_ENABLED, &ha->flags); 1491f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary goto irq_attached; 1492f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1493f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary } else { 1494f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ql4_printk(KERN_WARNING, ha, 1495f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary "INTx: Failed to reserve interrupt %d already in" 1496f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary " use.\n", ha->pdev->irq); 1497109a008bfe73322c1e2b16a7d23eb9899afe4352Vikas Chaudhary goto irq_not_attached; 1498f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary } 1499f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1500f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudharyirq_attached: 1501f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary set_bit(AF_IRQ_ATTACHED, &ha->flags); 1502f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ha->host->irq = ha->pdev->irq; 1503f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: irq %d attached\n", 1504f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary __func__, ha->pdev->irq); 1505109a008bfe73322c1e2b16a7d23eb9899afe4352Vikas Chaudharyirq_not_attached: 1506f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary return ret; 1507f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary} 1508f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary 1509f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudharyvoid qla4xxx_free_irqs(struct scsi_qla_host *ha) 1510f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary{ 15115c19b92ae82a2b39add78b2d2bc1c4e4d7c4d2ecVikas Chaudhary if (test_and_clear_bit(AF_IRQ_ATTACHED, &ha->flags)) { 15125c19b92ae82a2b39add78b2d2bc1c4e4d7c4d2ecVikas Chaudhary if (test_bit(AF_MSIX_ENABLED, &ha->flags)) { 15135c19b92ae82a2b39add78b2d2bc1c4e4d7c4d2ecVikas Chaudhary qla4_8xxx_disable_msix(ha); 15145c19b92ae82a2b39add78b2d2bc1c4e4d7c4d2ecVikas Chaudhary } else if (test_and_clear_bit(AF_MSI_ENABLED, &ha->flags)) { 15155c19b92ae82a2b39add78b2d2bc1c4e4d7c4d2ecVikas Chaudhary free_irq(ha->pdev->irq, ha); 15165c19b92ae82a2b39add78b2d2bc1c4e4d7c4d2ecVikas Chaudhary pci_disable_msi(ha->pdev); 15175c19b92ae82a2b39add78b2d2bc1c4e4d7c4d2ecVikas Chaudhary } else if (test_and_clear_bit(AF_INTx_ENABLED, &ha->flags)) { 15185c19b92ae82a2b39add78b2d2bc1c4e4d7c4d2ecVikas Chaudhary free_irq(ha->pdev->irq, ha); 15195c19b92ae82a2b39add78b2d2bc1c4e4d7c4d2ecVikas Chaudhary } 15205c19b92ae82a2b39add78b2d2bc1c4e4d7c4d2ecVikas Chaudhary } 1521f4f5df23bf72208d0c2f1d8be629839924c2f4c2Vikas Chaudhary} 1522