/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
- * Enterprise Fibre Channel Host Bus Adapters. *
- * Refer to the README file included with this package for *
- * driver version and adapter support. *
- * Copyright (C) 2004 Emulex Corporation. *
+ * Fibre Channel Host Bus Adapters. *
+ * Copyright (C) 2004-2006 Emulex. All rights reserved. *
+ * EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
+ * Portions Copyright (C) 2004-2005 Christoph Hellwig *
* *
* This program is free software; you can redistribute it and/or *
- * modify it under the terms of the GNU General Public License *
- * as published by the Free Software Foundation; either version 2 *
- * of the License, or (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details, a copy of which *
- * can be found in the file COPYING included with this package. *
+ * modify it under the terms of version 2 of the GNU General *
+ * Public License as published by the Free Software Foundation. *
+ * This program is distributed in the hope that it will be useful. *
+ * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
+ * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
+ * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
+ * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
+ * TO BE LEGALLY INVALID. See the GNU General Public License for *
+ * more details, a copy of which can be found in the file COPYING *
+ * included with this package. *
*******************************************************************/
-/*
- * $Id: lpfc_sli.c 1.178 2004/11/23 16:57:11EST sf_support Exp $
- */
-
-#include <linux/version.h>
#include <linux/blkdev.h>
-#include <linux/dma-mapping.h>
#include <linux/pci.h>
-#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
+#include <scsi/scsi_transport_fc.h>
+#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
#include "lpfc_crtn.h"
-#include "lpfc_hw.h"
#include "lpfc_logmsg.h"
-#include "lpfc_mem.h"
#include "lpfc_compat.h"
-static int lpfc_sli_reset_on_init = 1;
-
/*
* Define macro to log: Mailbox command x%x cannot issue Data
* This allows multiple uses of lpfc_msgBlk0311
* w/o perturbing log msg utility.
-*/
+ */
#define LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag) \
lpfc_printf_log(phba, \
KERN_INFO, \
phba->brd_no, \
mb->mbxCommand, \
phba->hba_state, \
- psli->sliinit.sli_flag, \
+ psli->sli_flag, \
flag);
-/* This will save a huge switch to determine if the IOCB cmd
- * is unsolicited or solicited.
- */
-#define LPFC_UNKNOWN_IOCB 0
-#define LPFC_UNSOL_IOCB 1
-#define LPFC_SOL_IOCB 2
-#define LPFC_ABORT_IOCB 3
-static uint8_t lpfc_sli_iocb_cmd_type[CMD_MAX_IOCB_CMD] = {
- LPFC_UNKNOWN_IOCB, /* 0x00 */
- LPFC_UNSOL_IOCB, /* CMD_RCV_SEQUENCE_CX 0x01 */
- LPFC_SOL_IOCB, /* CMD_XMIT_SEQUENCE_CR 0x02 */
- LPFC_SOL_IOCB, /* CMD_XMIT_SEQUENCE_CX 0x03 */
- LPFC_SOL_IOCB, /* CMD_XMIT_BCAST_CN 0x04 */
- LPFC_SOL_IOCB, /* CMD_XMIT_BCAST_CX 0x05 */
- LPFC_UNKNOWN_IOCB, /* CMD_QUE_RING_BUF_CN 0x06 */
- LPFC_UNKNOWN_IOCB, /* CMD_QUE_XRI_BUF_CX 0x07 */
- LPFC_UNKNOWN_IOCB, /* CMD_IOCB_CONTINUE_CN 0x08 */
- LPFC_UNKNOWN_IOCB, /* CMD_RET_XRI_BUF_CX 0x09 */
- LPFC_SOL_IOCB, /* CMD_ELS_REQUEST_CR 0x0A */
- LPFC_SOL_IOCB, /* CMD_ELS_REQUEST_CX 0x0B */
- LPFC_UNKNOWN_IOCB, /* 0x0C */
- LPFC_UNSOL_IOCB, /* CMD_RCV_ELS_REQ_CX 0x0D */
- LPFC_ABORT_IOCB, /* CMD_ABORT_XRI_CN 0x0E */
- LPFC_ABORT_IOCB, /* CMD_ABORT_XRI_CX 0x0F */
- LPFC_ABORT_IOCB, /* CMD_CLOSE_XRI_CR 0x10 */
- LPFC_ABORT_IOCB, /* CMD_CLOSE_XRI_CX 0x11 */
- LPFC_SOL_IOCB, /* CMD_CREATE_XRI_CR 0x12 */
- LPFC_SOL_IOCB, /* CMD_CREATE_XRI_CX 0x13 */
- LPFC_SOL_IOCB, /* CMD_GET_RPI_CN 0x14 */
- LPFC_SOL_IOCB, /* CMD_XMIT_ELS_RSP_CX 0x15 */
- LPFC_SOL_IOCB, /* CMD_GET_RPI_CR 0x16 */
- LPFC_ABORT_IOCB, /* CMD_XRI_ABORTED_CX 0x17 */
- LPFC_SOL_IOCB, /* CMD_FCP_IWRITE_CR 0x18 */
- LPFC_SOL_IOCB, /* CMD_FCP_IWRITE_CX 0x19 */
- LPFC_SOL_IOCB, /* CMD_FCP_IREAD_CR 0x1A */
- LPFC_SOL_IOCB, /* CMD_FCP_IREAD_CX 0x1B */
- LPFC_SOL_IOCB, /* CMD_FCP_ICMND_CR 0x1C */
- LPFC_SOL_IOCB, /* CMD_FCP_ICMND_CX 0x1D */
- LPFC_UNKNOWN_IOCB, /* 0x1E */
- LPFC_SOL_IOCB, /* CMD_FCP_TSEND_CX 0x1F */
- LPFC_SOL_IOCB, /* CMD_ADAPTER_MSG 0x20 */
- LPFC_SOL_IOCB, /* CMD_FCP_TRECEIVE_CX 0x21 */
- LPFC_SOL_IOCB, /* CMD_ADAPTER_DUMP 0x22 */
- LPFC_SOL_IOCB, /* CMD_FCP_TRSP_CX 0x23 */
- /* 0x24 - 0x80 */
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- /* 0x30 */
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB,
- /* 0x40 */
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB,
- /* 0x50 */
- LPFC_SOL_IOCB,
- LPFC_SOL_IOCB,
+/* There are only four IOCB completion types. */
+typedef enum _lpfc_iocb_type {
LPFC_UNKNOWN_IOCB,
- LPFC_SOL_IOCB,
- LPFC_SOL_IOCB,
- LPFC_UNSOL_IOCB,
LPFC_UNSOL_IOCB,
LPFC_SOL_IOCB,
- LPFC_SOL_IOCB,
-
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB,
- /* 0x60 */
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB,
- /* 0x70 */
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB,
- /* 0x80 */
- LPFC_UNKNOWN_IOCB,
- LPFC_UNSOL_IOCB, /* CMD_RCV_SEQUENCE64_CX 0x81 */
- LPFC_SOL_IOCB, /* CMD_XMIT_SEQUENCE64_CR 0x82 */
- LPFC_SOL_IOCB, /* CMD_XMIT_SEQUENCE64_CX 0x83 */
- LPFC_SOL_IOCB, /* CMD_XMIT_BCAST64_CN 0x84 */
- LPFC_SOL_IOCB, /* CMD_XMIT_BCAST64_CX 0x85 */
- LPFC_UNKNOWN_IOCB, /* CMD_QUE_RING_BUF64_CN 0x86 */
- LPFC_UNKNOWN_IOCB, /* CMD_QUE_XRI_BUF64_CX 0x87 */
- LPFC_UNKNOWN_IOCB, /* CMD_IOCB_CONTINUE64_CN 0x88 */
- LPFC_UNKNOWN_IOCB, /* CMD_RET_XRI_BUF64_CX 0x89 */
- LPFC_SOL_IOCB, /* CMD_ELS_REQUEST64_CR 0x8A */
- LPFC_SOL_IOCB, /* CMD_ELS_REQUEST64_CX 0x8B */
- LPFC_ABORT_IOCB, /* CMD_ABORT_MXRI64_CN 0x8C */
- LPFC_UNSOL_IOCB, /* CMD_RCV_ELS_REQ64_CX 0x8D */
- /* 0x8E - 0x94 */
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB,
- LPFC_SOL_IOCB, /* CMD_XMIT_ELS_RSP64_CX 0x95 */
- LPFC_UNKNOWN_IOCB, /* 0x96 */
- LPFC_UNKNOWN_IOCB, /* 0x97 */
- LPFC_SOL_IOCB, /* CMD_FCP_IWRITE64_CR 0x98 */
- LPFC_SOL_IOCB, /* CMD_FCP_IWRITE64_CX 0x99 */
- LPFC_SOL_IOCB, /* CMD_FCP_IREAD64_CR 0x9A */
- LPFC_SOL_IOCB, /* CMD_FCP_IREAD64_CX 0x9B */
- LPFC_SOL_IOCB, /* CMD_FCP_ICMND64_CR 0x9C */
- LPFC_SOL_IOCB, /* CMD_FCP_ICMND64_CX 0x9D */
- LPFC_UNKNOWN_IOCB, /* 0x9E */
- LPFC_SOL_IOCB, /* CMD_FCP_TSEND64_CX 0x9F */
- LPFC_UNKNOWN_IOCB, /* 0xA0 */
- LPFC_SOL_IOCB, /* CMD_FCP_TRECEIVE64_CX 0xA1 */
- LPFC_UNKNOWN_IOCB, /* 0xA2 */
- LPFC_SOL_IOCB, /* CMD_FCP_TRSP64_CX 0xA3 */
- /* 0xA4 - 0xC1 */
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_SOL_IOCB, /* CMD_GEN_REQUEST64_CR 0xC2 */
- LPFC_SOL_IOCB, /* CMD_GEN_REQUEST64_CX 0xC3 */
- /* 0xC4 - 0xCF */
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
+ LPFC_ABORT_IOCB
+} lpfc_iocb_type;
- LPFC_SOL_IOCB,
- LPFC_SOL_IOCB, /* CMD_SENDTEXT_CR 0xD1 */
- LPFC_SOL_IOCB, /* CMD_SENDTEXT_CX 0xD2 */
- LPFC_SOL_IOCB, /* CMD_RCV_LOGIN 0xD3 */
- LPFC_SOL_IOCB, /* CMD_ACCEPT_LOGIN 0xD4 */
- LPFC_SOL_IOCB, /* CMD_REJECT_LOGIN 0xD5 */
- LPFC_UNSOL_IOCB,
- /* 0xD7 - 0xDF */
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB, LPFC_UNKNOWN_IOCB,
- /* 0xE0 */
- LPFC_UNSOL_IOCB,
- LPFC_SOL_IOCB,
- LPFC_SOL_IOCB,
- LPFC_SOL_IOCB,
- LPFC_SOL_IOCB,
- LPFC_UNSOL_IOCB
-};
+struct lpfc_iocbq *
+lpfc_sli_get_iocbq(struct lpfc_hba * phba)
+{
+ struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
+ struct lpfc_iocbq * iocbq = NULL;
+ list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
+ return iocbq;
+}
-static int
-lpfc_sli_ring_map(struct lpfc_hba * phba)
+void
+lpfc_sli_release_iocbq(struct lpfc_hba * phba, struct lpfc_iocbq * iocbq)
{
- struct lpfc_sli *psli;
- LPFC_MBOXQ_t *pmb;
- MAILBOX_t *pmbox;
- int i;
+ size_t start_clean = (size_t)(&((struct lpfc_iocbq *)NULL)->iocb);
- psli = &phba->sli;
+ /*
+ * Clean all volatile data fields, preserve iotag and node struct.
+ */
+ memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
+ list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
+}
- /* Get a Mailbox buffer to setup mailbox commands for HBA
- initialization */
- if ((pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
- GFP_ATOMIC)) == 0) {
- phba->hba_state = LPFC_HBA_ERROR;
- return -ENOMEM;
+/*
+ * Translate the iocb command to an iocb command type used to decide the final
+ * disposition of each completed IOCB.
+ */
+static lpfc_iocb_type
+lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
+{
+ lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
+
+ if (iocb_cmnd > CMD_MAX_IOCB_CMD)
+ return 0;
+
+ switch (iocb_cmnd) {
+ case CMD_XMIT_SEQUENCE_CR:
+ case CMD_XMIT_SEQUENCE_CX:
+ case CMD_XMIT_BCAST_CN:
+ case CMD_XMIT_BCAST_CX:
+ case CMD_ELS_REQUEST_CR:
+ case CMD_ELS_REQUEST_CX:
+ case CMD_CREATE_XRI_CR:
+ case CMD_CREATE_XRI_CX:
+ case CMD_GET_RPI_CN:
+ case CMD_XMIT_ELS_RSP_CX:
+ case CMD_GET_RPI_CR:
+ case CMD_FCP_IWRITE_CR:
+ case CMD_FCP_IWRITE_CX:
+ case CMD_FCP_IREAD_CR:
+ case CMD_FCP_IREAD_CX:
+ case CMD_FCP_ICMND_CR:
+ case CMD_FCP_ICMND_CX:
+ case CMD_FCP_TSEND_CX:
+ case CMD_FCP_TRSP_CX:
+ case CMD_FCP_TRECEIVE_CX:
+ case CMD_FCP_AUTO_TRSP_CX:
+ case CMD_ADAPTER_MSG:
+ case CMD_ADAPTER_DUMP:
+ case CMD_XMIT_SEQUENCE64_CR:
+ case CMD_XMIT_SEQUENCE64_CX:
+ case CMD_XMIT_BCAST64_CN:
+ case CMD_XMIT_BCAST64_CX:
+ case CMD_ELS_REQUEST64_CR:
+ case CMD_ELS_REQUEST64_CX:
+ case CMD_FCP_IWRITE64_CR:
+ case CMD_FCP_IWRITE64_CX:
+ case CMD_FCP_IREAD64_CR:
+ case CMD_FCP_IREAD64_CX:
+ case CMD_FCP_ICMND64_CR:
+ case CMD_FCP_ICMND64_CX:
+ case CMD_FCP_TSEND64_CX:
+ case CMD_FCP_TRSP64_CX:
+ case CMD_FCP_TRECEIVE64_CX:
+ case CMD_GEN_REQUEST64_CR:
+ case CMD_GEN_REQUEST64_CX:
+ case CMD_XMIT_ELS_RSP64_CX:
+ type = LPFC_SOL_IOCB;
+ break;
+ case CMD_ABORT_XRI_CN:
+ case CMD_ABORT_XRI_CX:
+ case CMD_CLOSE_XRI_CN:
+ case CMD_CLOSE_XRI_CX:
+ case CMD_XRI_ABORTED_CX:
+ case CMD_ABORT_MXRI64_CN:
+ type = LPFC_ABORT_IOCB;
+ break;
+ case CMD_RCV_SEQUENCE_CX:
+ case CMD_RCV_ELS_REQ_CX:
+ case CMD_RCV_SEQUENCE64_CX:
+ case CMD_RCV_ELS_REQ64_CX:
+ type = LPFC_UNSOL_IOCB;
+ break;
+ default:
+ type = LPFC_UNKNOWN_IOCB;
+ break;
}
- pmbox = &pmb->mb;
- /* Initialize the struct lpfc_sli_ring structure for each ring */
- for (i = 0; i < psli->sliinit.num_rings; i++) {
- /* Issue a CONFIG_RING mailbox command for each ring */
+ return type;
+}
+
+static int
+lpfc_sli_ring_map(struct lpfc_hba * phba, LPFC_MBOXQ_t *pmb)
+{
+ struct lpfc_sli *psli = &phba->sli;
+ MAILBOX_t *pmbox = &pmb->mb;
+ int i, rc;
+
+ for (i = 0; i < psli->num_rings; i++) {
phba->hba_state = LPFC_INIT_MBX_CMDS;
lpfc_config_ring(phba, i, pmb);
- if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
- /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
- mbxStatus <status>, ring <num> */
+ rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
+ if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba,
KERN_ERR,
LOG_INIT,
pmbox->mbxStatus,
i);
phba->hba_state = LPFC_HBA_ERROR;
- mempool_free( pmb, phba->mbox_mem_pool);
return -ENXIO;
}
}
- mempool_free( pmb, phba->mbox_mem_pool);
return 0;
}
lpfc_sli_ringtxcmpl_put(struct lpfc_hba * phba,
struct lpfc_sli_ring * pring, struct lpfc_iocbq * piocb)
{
- uint16_t iotag;
-
list_add_tail(&piocb->list, &pring->txcmplq);
pring->txcmplq_cnt++;
+ if (unlikely(pring->ringno == LPFC_ELS_RING))
+ mod_timer(&phba->els_tmofunc,
+ jiffies + HZ * (phba->fc_ratov << 1));
- if (pring->fast_lookup) {
- /* Setup fast lookup based on iotag for completion */
- iotag = piocb->iocb.ulpIoTag;
- if (iotag && (iotag
- < phba->sli.sliinit.ringinit[pring->ringno].fast_iotag))
- *(pring->fast_lookup + iotag) = piocb;
- else {
-
- /* Cmd ring <ringno> put: iotag <iotag> greater then
- configured max <fast_iotag> wd0 <icmd> */
- lpfc_printf_log(phba,
- KERN_ERR,
- LOG_SLI,
- "%d:0316 Cmd ring %d put: iotag x%x "
- "greater then configured max x%x "
- "wd0 x%x\n",
- phba->brd_no,
- pring->ringno, iotag, phba->sli.sliinit
- .ringinit[pring->ringno].fast_iotag,
- *(((uint32_t *)(&piocb->iocb)) + 7));
- }
- }
return (0);
}
{
struct list_head *dlp;
struct lpfc_iocbq *cmd_iocb;
- struct lpfc_iocbq *next_iocb;
dlp = &pring->txq;
cmd_iocb = NULL;
- next_iocb = (struct lpfc_iocbq *) pring->txq.next;
- if (next_iocb != (struct lpfc_iocbq *) & pring->txq) {
+ list_remove_head((&pring->txq), cmd_iocb,
+ struct lpfc_iocbq,
+ list);
+ if (cmd_iocb) {
/* If the first ptr is not equal to the list header,
* deque the IOCBQ_t and return it.
*/
- cmd_iocb = next_iocb;
- list_del(&cmd_iocb->list);
pring->txq_cnt--;
}
return (cmd_iocb);
static IOCB_t *
lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
{
- MAILBOX_t *mbox = (MAILBOX_t *)phba->sli.MBhostaddr;
- PGP *pgp = (PGP *)&mbox->us.s2.port[pring->ringno];
- uint32_t max_cmd_idx =
- phba->sli.sliinit.ringinit[pring->ringno].numCiocb;
+ struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno];
+ uint32_t max_cmd_idx = pring->numCiocb;
IOCB_t *iocb = NULL;
-
- if((pring->next_cmdidx == pring->cmdidx) &&
+
+ if ((pring->next_cmdidx == pring->cmdidx) &&
(++pring->next_cmdidx >= max_cmd_idx))
pring->next_cmdidx = 0;
if (unlikely(pring->local_getidx == pring->next_cmdidx)) {
-
+
pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
if (unlikely(pring->local_getidx >= max_cmd_idx)) {
pring->local_getidx, max_cmd_idx);
phba->hba_state = LPFC_HBA_ERROR;
- lpfc_handle_eratt(phba, HS_FFER3);
-
+ /*
+ * All error attention handlers are posted to
+ * worker thread
+ */
+ phba->work_ha |= HA_ERATT;
+ phba->work_hs = HS_FFER3;
+ if (phba->work_wait)
+ wake_up(phba->work_wait);
+
return NULL;
}
return iocb;
}
+uint16_t
+lpfc_sli_next_iotag(struct lpfc_hba * phba, struct lpfc_iocbq * iocbq)
+{
+ struct lpfc_iocbq ** new_arr;
+ struct lpfc_iocbq ** old_arr;
+ size_t new_len;
+ struct lpfc_sli *psli = &phba->sli;
+ uint16_t iotag;
+
+ spin_lock_irq(phba->host->host_lock);
+ iotag = psli->last_iotag;
+ if(++iotag < psli->iocbq_lookup_len) {
+ psli->last_iotag = iotag;
+ psli->iocbq_lookup[iotag] = iocbq;
+ spin_unlock_irq(phba->host->host_lock);
+ iocbq->iotag = iotag;
+ return iotag;
+ }
+ else if (psli->iocbq_lookup_len < (0xffff
+ - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
+ new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
+ spin_unlock_irq(phba->host->host_lock);
+ new_arr = kmalloc(new_len * sizeof (struct lpfc_iocbq *),
+ GFP_KERNEL);
+ if (new_arr) {
+ memset((char *)new_arr, 0,
+ new_len * sizeof (struct lpfc_iocbq *));
+ spin_lock_irq(phba->host->host_lock);
+ old_arr = psli->iocbq_lookup;
+ if (new_len <= psli->iocbq_lookup_len) {
+ /* highly unprobable case */
+ kfree(new_arr);
+ iotag = psli->last_iotag;
+ if(++iotag < psli->iocbq_lookup_len) {
+ psli->last_iotag = iotag;
+ psli->iocbq_lookup[iotag] = iocbq;
+ spin_unlock_irq(phba->host->host_lock);
+ iocbq->iotag = iotag;
+ return iotag;
+ }
+ spin_unlock_irq(phba->host->host_lock);
+ return 0;
+ }
+ if (psli->iocbq_lookup)
+ memcpy(new_arr, old_arr,
+ ((psli->last_iotag + 1) *
+ sizeof (struct lpfc_iocbq *)));
+ psli->iocbq_lookup = new_arr;
+ psli->iocbq_lookup_len = new_len;
+ psli->last_iotag = iotag;
+ psli->iocbq_lookup[iotag] = iocbq;
+ spin_unlock_irq(phba->host->host_lock);
+ iocbq->iotag = iotag;
+ kfree(old_arr);
+ return iotag;
+ }
+ } else
+ spin_unlock_irq(phba->host->host_lock);
+
+ lpfc_printf_log(phba, KERN_ERR,LOG_SLI,
+ "%d:0318 Failed to allocate IOTAG.last IOTAG is %d\n",
+ phba->brd_no, psli->last_iotag);
+
+ return 0;
+}
+
static void
lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
{
- struct lpfc_sli *psli = &phba->sli;
- int ringno = pring->ringno;
-
/*
- * Alloocate and set up an iotag
+ * Set up an iotag
*/
- nextiocb->iocb.ulpIoTag =
- lpfc_sli_next_iotag(phba, &psli->ring[psli->fcp_ring]);
+ nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
/*
* Issue iocb command to adapter
*/
- lpfc_sli_pcimem_bcopy((uint32_t *)&nextiocb->iocb,
- (uint32_t *)(iocb), sizeof (IOCB_t));
+ lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, sizeof (IOCB_t));
wmb();
- psli->slistat.iocbCmd[ringno]++;
+ pring->stats.iocb_cmd++;
/*
* If there is no completion routine to call, we can release the
if (nextiocb->iocb_cmpl)
lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
else
- mempool_free(nextiocb, phba->iocb_mem_pool);
+ lpfc_sli_release_iocbq(phba, nextiocb);
/*
* Let the HBA know what IOCB slot will be the next one the
* driver will put a command into.
*/
pring->cmdidx = pring->next_cmdidx;
- writeb(pring->cmdidx,
- (u8 *)phba->MBslimaddr + (SLIMOFF + (ringno * 2)) * 4);
-
- return;
+ writel(pring->cmdidx, phba->MBslimaddr
+ + (SLIMOFF + (pring->ringno * 2)) * 4);
}
static void
writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
readl(phba->CAregaddr); /* flush */
- phba->sli.slistat.iocbCmdFull[ringno]++;
+ pring->stats.iocb_cmd_full++;
}
static void
static void
lpfc_sli_resume_iocb(struct lpfc_hba * phba, struct lpfc_sli_ring * pring)
{
- struct lpfc_sli *psli = &phba->sli;
IOCB_t *iocb;
struct lpfc_iocbq *nextiocb;
*/
if (pring->txq_cnt &&
(phba->hba_state > LPFC_LINK_DOWN) &&
- (pring->ringno != psli->fcp_ring ||
- psli->sliinit.sli_flag & LPFC_PROCESS_LA) &&
+ (pring->ringno != phba->sli.fcp_ring ||
+ phba->sli.sli_flag & LPFC_PROCESS_LA) &&
!(pring->flag & LPFC_STOP_IOCB_MBX)) {
while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
(nextiocb = lpfc_sli_ringtx_get(phba, pring)))
lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
-
+
if (iocb)
lpfc_sli_update_ring(phba, pring);
else
static void
lpfc_sli_turn_on_ring(struct lpfc_hba * phba, int ringno)
{
- struct lpfc_sli *psli;
- struct lpfc_sli_ring *pring;
- PGP *pgp;
-
- psli = &phba->sli;
- pring = &psli->ring[ringno];
- pgp = (PGP *) & (((MAILBOX_t *)psli->MBhostaddr)->us.s2.port[ringno]);
+ struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[ringno];
/* If the ring is active, flag it */
- if (psli->ring[ringno].cmdringaddr) {
- if (psli->ring[ringno].flag & LPFC_STOP_IOCB_MBX) {
- psli->ring[ringno].flag &= ~LPFC_STOP_IOCB_MBX;
+ if (phba->sli.ring[ringno].cmdringaddr) {
+ if (phba->sli.ring[ringno].flag & LPFC_STOP_IOCB_MBX) {
+ phba->sli.ring[ringno].flag &= ~LPFC_STOP_IOCB_MBX;
/*
* Force update of the local copy of cmdGetInx
*/
- pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
- lpfc_sli_resume_iocb(phba, pring);
+ phba->sli.ring[ringno].local_getidx
+ = le32_to_cpu(pgp->cmdGetInx);
+ spin_lock_irq(phba->host->host_lock);
+ lpfc_sli_resume_iocb(phba, &phba->sli.ring[ringno]);
+ spin_unlock_irq(phba->host->host_lock);
}
}
}
case MBX_SET_MASK:
case MBX_SET_SLIM:
case MBX_UNREG_D_ID:
+ case MBX_KILL_BOARD:
case MBX_CONFIG_FARP:
+ case MBX_BEACON:
case MBX_LOAD_AREA:
case MBX_RUN_BIU_DIAG64:
case MBX_CONFIG_PORT:
}
return (ret);
}
-static int
+static void
+lpfc_sli_wake_mbox_wait(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
+{
+ wait_queue_head_t *pdone_q;
+
+ /*
+ * If pdone_q is empty, the driver thread gave up waiting and
+ * continued running.
+ */
+ pdone_q = (wait_queue_head_t *) pmboxq->context1;
+ if (pdone_q)
+ wake_up_interruptible(pdone_q);
+ return;
+}
+
+void
+lpfc_sli_def_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
+{
+ struct lpfc_dmabuf *mp;
+ mp = (struct lpfc_dmabuf *) (pmb->context1);
+ if (mp) {
+ lpfc_mbuf_free(phba, mp->virt, mp->phys);
+ kfree(mp);
+ }
+ mempool_free( pmb, phba->mbox_mem_pool);
+ return;
+}
+
+int
lpfc_sli_handle_mb_event(struct lpfc_hba * phba)
{
MAILBOX_t *mbox;
MAILBOX_t *pmbox;
LPFC_MBOXQ_t *pmb;
- struct lpfc_dmabuf *mp;
struct lpfc_sli *psli;
- int i;
- unsigned long iflag;
+ int i, rc;
uint32_t process_next;
-
psli = &phba->sli;
/* We should only get here if we are in SLI2 mode */
- if (!(psli->sliinit.sli_flag & LPFC_SLI2_ACTIVE)) {
+ if (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE)) {
return (1);
}
- spin_lock_irqsave(phba->host->host_lock, iflag);
-
- psli->slistat.mboxEvent++;
+ phba->sli.slistat.mbox_event++;
/* Get a Mailbox buffer to setup mailbox commands for callback */
- if ((pmb = psli->mbox_active)) {
+ if ((pmb = phba->sli.mbox_active)) {
pmbox = &pmb->mb;
- mbox = (MAILBOX_t *) psli->MBhostaddr;
+ mbox = &phba->slim2p->mbx;
/* First check out the status word */
- lpfc_sli_pcimem_bcopy((uint32_t *) mbox, (uint32_t *) pmbox,
- sizeof (uint32_t));
+ lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof (uint32_t));
/* Sanity check to ensure the host owns the mailbox */
if (pmbox->mbxOwner != OWN_HOST) {
/* Lets try for a while */
for (i = 0; i < 10240; i++) {
/* First copy command data */
- lpfc_sli_pcimem_bcopy((uint32_t *) mbox,
- (uint32_t *) pmbox,
- sizeof (uint32_t));
+ lpfc_sli_pcimem_bcopy(mbox, pmbox,
+ sizeof (uint32_t));
if (pmbox->mbxOwner == OWN_HOST)
goto mbout;
}
/* Stray Mailbox Interrupt, mbxCommand <cmd> mbxStatus
<status> */
lpfc_printf_log(phba,
- KERN_ERR,
+ KERN_WARNING,
LOG_MBOX | LOG_SLI,
"%d:0304 Stray Mailbox Interrupt "
"mbxCommand x%x mbxStatus x%x\n",
pmbox->mbxCommand,
pmbox->mbxStatus);
- psli->sliinit.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
- spin_unlock_irqrestore(phba->host->host_lock, iflag);
+ spin_lock_irq(phba->host->host_lock);
+ phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
+ spin_unlock_irq(phba->host->host_lock);
return (1);
}
mbout:
- del_timer_sync(&psli->mbox_tmo);
+ del_timer_sync(&phba->sli.mbox_tmo);
+ phba->work_hba_events &= ~WORKER_MBOX_TMO;
/*
* It is a fatal error if unknown mbox command completion.
phba->brd_no,
pmbox->mbxCommand);
phba->hba_state = LPFC_HBA_ERROR;
- spin_unlock_irqrestore(phba->host->host_lock, iflag);
- lpfc_handle_eratt(phba, HS_FFER3);
+ phba->work_hs = HS_FFER3;
+ lpfc_handle_eratt(phba);
return (0);
}
- psli->mbox_active = NULL;
+ phba->sli.mbox_active = NULL;
if (pmbox->mbxStatus) {
- psli->slistat.mboxStatErr++;
+ phba->sli.slistat.mbox_stat_err++;
if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
/* Mbox cmd cmpl error - RETRYing */
lpfc_printf_log(phba,
phba->hba_state);
pmbox->mbxStatus = 0;
pmbox->mbxOwner = OWN_HOST;
- psli->sliinit.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
- if (lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT)
- == MBX_SUCCESS) {
- spin_unlock_irqrestore(
- phba->host->host_lock,
- iflag);
+ spin_lock_irq(phba->host->host_lock);
+ phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ spin_unlock_irq(phba->host->host_lock);
+ rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
+ if (rc == MBX_SUCCESS)
return (0);
- }
}
}
pmbox->un.varWords[7]);
if (pmb->mbox_cmpl) {
- /* Copy entire mbox completion over buffer */
- lpfc_sli_pcimem_bcopy((uint32_t *) mbox,
- (uint32_t *) pmbox,
- (sizeof (uint32_t) *
- (MAILBOX_CMD_WSIZE)));
- /* All mbox cmpls are posted to discovery tasklet */
- lpfc_discq_post_event(phba, pmb, NULL,
- LPFC_EVT_MBOX);
- } else {
- mp = (struct lpfc_dmabuf *) (pmb->context1);
- if (mp) {
- lpfc_mbuf_free(phba, mp->virt, mp->phys);
- kfree(mp);
- }
- mempool_free( pmb, phba->mbox_mem_pool);
+ lpfc_sli_pcimem_bcopy(mbox, pmbox, MAILBOX_CMD_SIZE);
+ pmb->mbox_cmpl(phba,pmb);
}
}
do {
process_next = 0; /* by default don't loop */
- psli->sliinit.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ spin_lock_irq(phba->host->host_lock);
+ phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
/* Process next mailbox command if there is one */
if ((pmb = lpfc_mbox_get(phba))) {
- if (lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT) ==
- MBX_NOT_FINISHED) {
- mp = (struct lpfc_dmabuf *) (pmb->context1);
- if (mp) {
- lpfc_mbuf_free(phba, mp->virt,
- mp->phys);
- kfree(mp);
- }
- mempool_free( pmb, phba->mbox_mem_pool);
+ spin_unlock_irq(phba->host->host_lock);
+ rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED) {
+ pmb->mb.mbxStatus = MBX_NOT_FINISHED;
+ pmb->mbox_cmpl(phba,pmb);
process_next = 1;
continue; /* loop back */
}
} else {
+ spin_unlock_irq(phba->host->host_lock);
/* Turn on IOCB processing */
- for (i = 0; i < psli->sliinit.num_rings; i++) {
+ for (i = 0; i < phba->sli.num_rings; i++) {
lpfc_sli_turn_on_ring(phba, i);
}
while (!list_empty(&phba->freebufList)) {
struct lpfc_dmabuf *mp;
- mp = (struct lpfc_dmabuf *)
- (phba->freebufList.next);
+ mp = NULL;
+ list_remove_head((&phba->freebufList),
+ mp,
+ struct lpfc_dmabuf,
+ list);
if (mp) {
lpfc_mbuf_free(phba, mp->virt,
mp->phys);
- list_del(&mp->list);
kfree(mp);
}
}
} while (process_next);
- spin_unlock_irqrestore(phba->host->host_lock, iflag);
return (0);
}
static int
lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_iocbq *saveq)
{
- struct lpfc_sli * psli;
IOCB_t * irsp;
- LPFC_RING_INIT_t * pringinit;
WORD5 * w5p;
uint32_t Rctl, Type;
- uint32_t match, ringno, i;
+ uint32_t match, i;
- psli = &phba->sli;
match = 0;
- ringno = pring->ringno;
irsp = &(saveq->iocb);
if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX)
|| (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX)) {
ulpWord[5]);
Rctl = w5p->hcsw.Rctl;
Type = w5p->hcsw.Type;
+
+ /* Firmware Workaround */
+ if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
+ (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX)) {
+ Rctl = FC_ELS_REQ;
+ Type = FC_ELS_DATA;
+ w5p->hcsw.Rctl = Rctl;
+ w5p->hcsw.Type = Type;
+ }
}
/* unSolicited Responses */
- pringinit = &psli->sliinit.ringinit[ringno];
- if (pringinit->prt[0].profile) {
- /* If this ring has a profile set, just
- send it to prt[0] */
- /* All unsol iocbs for LPFC_ELS_RING
- * are posted to discovery tasklet.
- */
- if (ringno == LPFC_ELS_RING) {
- lpfc_discq_post_event(phba, (void *)&pringinit->prt[0],
- (void *)saveq, LPFC_EVT_UNSOL_IOCB);
- }
- else {
- (pringinit->prt[0].
- lpfc_sli_rcv_unsol_event) (phba, pring, saveq);
- }
+ if (pring->prt[0].profile) {
+ if (pring->prt[0].lpfc_sli_rcv_unsol_event)
+ (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
+ saveq);
match = 1;
} else {
/* We must search, based on rctl / type
for the right routine */
- for (i = 0; i < pringinit->num_mask;
+ for (i = 0; i < pring->num_mask;
i++) {
- if ((pringinit->prt[i].rctl ==
+ if ((pring->prt[i].rctl ==
Rctl)
- && (pringinit->prt[i].
+ && (pring->prt[i].
type == Type)) {
- /* All unsol iocbs for LPFC_ELS_RING
- * are posted to discovery tasklet.
- */
- if (ringno == LPFC_ELS_RING) {
- lpfc_discq_post_event(phba,
- (void *)&pringinit->prt[i],
- (void *)saveq, LPFC_EVT_UNSOL_IOCB);
- }
- else {
- (pringinit->prt[i].
- lpfc_sli_rcv_unsol_event)
- (phba, pring, saveq);
- }
+ if (pring->prt[i].lpfc_sli_rcv_unsol_event)
+ (pring->prt[i].lpfc_sli_rcv_unsol_event)
+ (phba, pring, saveq);
match = 1;
break;
}
"%d:0313 Ring %d handler: unexpected Rctl x%x "
"Type x%x received \n",
phba->brd_no,
- ringno,
+ pring->ringno,
Rctl,
Type);
}
return(1);
}
-static struct lpfc_iocbq *
-lpfc_search_txcmpl(struct lpfc_sli_ring * pring, struct lpfc_iocbq * prspiocb)
-{
- IOCB_t *icmd = NULL;
- IOCB_t *irsp = NULL;
- struct lpfc_iocbq *cmd_iocb;
- struct lpfc_iocbq *iocb, *next_iocb;
- uint16_t iotag;
-
- irsp = &prspiocb->iocb;
- iotag = irsp->ulpIoTag;
- cmd_iocb = NULL;
-
- /* Search through txcmpl from the begining */
- list_for_each_entry_safe(iocb, next_iocb, &(pring->txcmplq), list) {
- icmd = &iocb->iocb;
- if (iotag == icmd->ulpIoTag) {
- /* Found a match. */
- cmd_iocb = iocb;
- list_del(&iocb->list);
- pring->txcmplq_cnt--;
- break;
- }
- }
- return (cmd_iocb);
-}
static struct lpfc_iocbq *
-lpfc_sli_ringtxcmpl_get(struct lpfc_hba * phba,
- struct lpfc_sli_ring * pring,
- struct lpfc_iocbq * prspiocb, uint32_t srch)
+lpfc_sli_iocbq_lookup(struct lpfc_hba * phba,
+ struct lpfc_sli_ring * pring,
+ struct lpfc_iocbq * prspiocb)
{
- struct list_head *dlp;
- IOCB_t *irsp = NULL;
- struct lpfc_iocbq *cmd_iocb;
- struct lpfc_sli *psli;
+ struct lpfc_iocbq *cmd_iocb = NULL;
uint16_t iotag;
+ iotag = prspiocb->iocb.ulpIoTag;
- dlp = &pring->txcmplq;
-
- if (pring->fast_lookup && (srch == 0)) {
- /*
- * Use fast lookup based on iotag for completion
- */
- psli = &phba->sli;
- irsp = &prspiocb->iocb;
- iotag = irsp->ulpIoTag;
- if (iotag < psli->sliinit.ringinit[pring->ringno].fast_iotag) {
- cmd_iocb = *(pring->fast_lookup + iotag);
- *(pring->fast_lookup + iotag) = NULL;
- if (cmd_iocb) {
- list_del(&cmd_iocb->list);
- pring->txcmplq_cnt--;
- return cmd_iocb;
- }
- } else {
- /*
- * Rsp ring <ringno> get: iotag <iotag> greater then
- * configured max <fast_iotag> wd0 <irsp>
- */
- lpfc_printf_log(phba,
- KERN_ERR,
- LOG_SLI,
- "%d:0317 Rsp ring %d get: iotag x%x "
- "greater then configured max x%x "
- "wd0 x%x\n",
- phba->brd_no,
- pring->ringno, iotag,
- psli->sliinit.ringinit[pring->ringno]
- .fast_iotag,
- *(((uint32_t *) irsp) + 7));
- }
+ if (iotag != 0 && iotag <= phba->sli.last_iotag) {
+ cmd_iocb = phba->sli.iocbq_lookup[iotag];
+ list_del(&cmd_iocb->list);
+ pring->txcmplq_cnt--;
+ return cmd_iocb;
}
- cmd_iocb = lpfc_search_txcmpl(pring, prspiocb);
-
- return cmd_iocb;
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "%d:0317 iotag x%x is out off "
+ "range: max iotag x%x wd0 x%x\n",
+ phba->brd_no, iotag,
+ phba->sli.last_iotag,
+ *(((uint32_t *) &prspiocb->iocb) + 7));
+ return NULL;
}
static int
struct lpfc_iocbq *saveq)
{
struct lpfc_iocbq * cmdiocbp;
- int ringno, rc;
+ int rc = 1;
unsigned long iflag;
- rc = 1;
- ringno = pring->ringno;
- /* Solicited Responses */
- /* Based on the iotag field, get the cmd IOCB
- from the txcmplq */
+ /* Based on the iotag field, get the cmd IOCB from the txcmplq */
spin_lock_irqsave(phba->host->host_lock, iflag);
- if ((cmdiocbp =
- lpfc_sli_ringtxcmpl_get(phba, pring, saveq,
- 0))) {
- /* Call the specified completion
- routine */
+ cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
+ if (cmdiocbp) {
if (cmdiocbp->iocb_cmpl) {
- /* All iocb cmpls for LPFC_ELS_RING
- * are posted to discovery tasklet.
+ /*
+ * Post all ELS completions to the worker thread.
+ * All other are passed to the completion callback.
*/
- if (ringno == LPFC_ELS_RING) {
- lpfc_discq_post_event(phba, (void *)cmdiocbp,
- (void *)saveq, LPFC_EVT_SOL_IOCB);
+ if (pring->ringno == LPFC_ELS_RING) {
+ spin_unlock_irqrestore(phba->host->host_lock,
+ iflag);
+ (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
+ spin_lock_irqsave(phba->host->host_lock, iflag);
}
else {
- if (cmdiocbp->iocb_flag & LPFC_IO_POLL) {
- rc = 0;
- }
-
spin_unlock_irqrestore(phba->host->host_lock,
iflag);
(cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
spin_lock_irqsave(phba->host->host_lock, iflag);
}
- } else {
- mempool_free( cmdiocbp, phba->iocb_mem_pool);
- }
+ } else
+ lpfc_sli_release_iocbq(phba, cmdiocbp);
} else {
- /* Could not find the initiating command
- * based of the response iotag.
- * This is expected on ELS ring because of lpfc_els_abort().
+ /*
+ * Unknown initiating command based on the response iotag.
+ * This could be the case on the ELS ring because of
+ * lpfc_els_abort().
*/
- if (ringno != LPFC_ELS_RING) {
- /* Ring <ringno> handler: unexpected
- completion IoTag <IoTag> */
+ if (pring->ringno != LPFC_ELS_RING) {
+ /*
+ * Ring <ringno> handler: unexpected completion IoTag
+ * <IoTag>
+ */
lpfc_printf_log(phba,
KERN_WARNING,
LOG_SLI,
"%d:0322 Ring %d handler: unexpected "
"completion IoTag x%x Data: x%x x%x x%x x%x\n",
phba->brd_no,
- ringno,
+ pring->ringno,
saveq->iocb.ulpIoTag,
saveq->iocb.ulpStatus,
saveq->iocb.un.ulpWord[4],
saveq->iocb.ulpContext);
}
}
+
spin_unlock_irqrestore(phba->host->host_lock, iflag);
- return(rc);
+ return rc;
}
-static int
-lpfc_sli_handle_ring_event(struct lpfc_hba * phba,
- struct lpfc_sli_ring * pring, uint32_t mask)
+
+static void lpfc_sli_rsp_pointers_error(struct lpfc_hba * phba,
+ struct lpfc_sli_ring * pring)
{
- struct lpfc_sli * psli;
- IOCB_t * entry;
- IOCB_t * irsp;
- struct lpfc_iocbq * rspiocbp, *next_iocb;
- struct lpfc_iocbq * cmdiocbp;
- struct lpfc_iocbq * saveq;
- HGP * hgp;
- PGP * pgp;
- MAILBOX_t * mbox;
- uint32_t status, free_saveq;
- uint32_t portRspPut, portRspMax;
- int ringno, loopcnt, rc;
- uint8_t type;
- unsigned long iflag;
- void *to_slim;
-
- psli = &phba->sli;
- ringno = pring->ringno;
- irsp = NULL;
- rc = 1;
+ struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno];
+ /*
+ * Ring <ringno> handler: portRspPut <portRspPut> is bigger then
+ * rsp ring <portRspMax>
+ */
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "%d:0312 Ring %d handler: portRspPut %d "
+ "is bigger then rsp ring %d\n",
+ phba->brd_no, pring->ringno,
+ le32_to_cpu(pgp->rspPutInx),
+ pring->numRiocb);
- spin_lock_irqsave(phba->host->host_lock, iflag);
- psli->slistat.iocbEvent[ringno]++;
+ phba->hba_state = LPFC_HBA_ERROR;
- /* At this point we assume SLI-2 */
- mbox = (MAILBOX_t *) psli->MBhostaddr;
- pgp = (PGP *) & mbox->us.s2.port[ringno];
- hgp = (HGP *) & mbox->us.s2.host[ringno];
+ /*
+ * All error attention handlers are posted to
+ * worker thread
+ */
+ phba->work_ha |= HA_ERATT;
+ phba->work_hs = HS_FFER3;
+ if (phba->work_wait)
+ wake_up(phba->work_wait);
- /* portRspMax is the number of rsp ring entries for this specific
- ring. */
- portRspMax = psli->sliinit.ringinit[ringno].numRiocb;
+ return;
+}
- rspiocbp = NULL;
- loopcnt = 0;
+void lpfc_sli_poll_fcp_ring(struct lpfc_hba * phba)
+{
+ struct lpfc_sli * psli = &phba->sli;
+ struct lpfc_sli_ring * pring = &psli->ring[LPFC_FCP_RING];
+ IOCB_t *irsp = NULL;
+ IOCB_t *entry = NULL;
+ struct lpfc_iocbq *cmdiocbq = NULL;
+ struct lpfc_iocbq rspiocbq;
+ struct lpfc_pgp *pgp;
+ uint32_t status;
+ uint32_t portRspPut, portRspMax;
+ int type;
+ uint32_t rsp_cmpl = 0;
+ void __iomem *to_slim;
+ uint32_t ha_copy;
- /* Gather iocb entries off response ring.
- * rspidx is the IOCB index of the next IOCB that the driver
- * is going to process.
- */
- entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
- portRspPut = le32_to_cpu(pgp->rspPutInx);
+ pring->stats.iocb_event++;
- if (portRspPut >= portRspMax) {
+ /* The driver assumes SLI-2 mode */
+ pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno];
- /* Ring <ringno> handler: portRspPut <portRspPut> is bigger then
- rsp ring <portRspMax> */
- lpfc_printf_log(phba,
- KERN_ERR,
- LOG_SLI,
- "%d:0312 Ring %d handler: portRspPut %d "
- "is bigger then rsp ring %d\n",
- phba->brd_no,
- ringno, portRspPut, portRspMax);
- /*
- * Treat it as adapter hardware error.
- */
- phba->hba_state = LPFC_HBA_ERROR;
- spin_unlock_irqrestore(phba->host->host_lock, iflag);
- lpfc_handle_eratt(phba, HS_FFER3);
- return (1);
+ /*
+ * The next available response entry should never exceed the maximum
+ * entries. If it does, treat it as an adapter hardware error.
+ */
+ portRspMax = pring->numRiocb;
+ portRspPut = le32_to_cpu(pgp->rspPutInx);
+ if (unlikely(portRspPut >= portRspMax)) {
+ lpfc_sli_rsp_pointers_error(phba, pring);
+ return;
}
rmb();
-
- /* Get the next available response iocb.
- * rspidx is the IOCB index of the next IOCB that the driver
- * is going to process.
- */
while (pring->rspidx != portRspPut) {
- /* get an iocb buffer to copy entry into */
- if ((rspiocbp = mempool_alloc(phba->iocb_mem_pool,
- GFP_ATOMIC)) == 0) {
- break;
- }
- lpfc_sli_pcimem_bcopy((uint32_t *) entry,
- (uint32_t *) & rspiocbp->iocb,
- sizeof (IOCB_t));
- irsp = &rspiocbp->iocb;
+ entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
- /* bump iocb available response index */
- if (++pring->rspidx >= portRspMax) {
+ if (++pring->rspidx >= portRspMax)
pring->rspidx = 0;
- }
-
- /* Let the HBA know what IOCB slot will be the next one the
- * driver will read a response from.
- */
- to_slim = (uint8_t *) phba->MBslimaddr +
- (SLIMOFF + (ringno * 2) + 1) * 4;
- writeb( pring->rspidx, to_slim);
-
- /* chain all iocb entries until LE is set */
- if (list_empty(&(pring->iocb_continueq))) {
- list_add(&rspiocbp->list, &(pring->iocb_continueq));
- } else {
- list_add_tail(&rspiocbp->list,
- &(pring->iocb_continueq));
- }
- pring->iocb_continueq_cnt++;
+ lpfc_sli_pcimem_bcopy((uint32_t *) entry,
+ (uint32_t *) &rspiocbq.iocb,
+ sizeof (IOCB_t));
+ irsp = &rspiocbq.iocb;
+ type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
+ pring->stats.iocb_rsp++;
+ rsp_cmpl++;
+
+ if (unlikely(irsp->ulpStatus)) {
+ /* Rsp ring <ringno> error: IOCB */
+ lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
+ "%d:0326 Rsp Ring %d error: IOCB Data: "
+ "x%x x%x x%x x%x x%x x%x x%x x%x\n",
+ phba->brd_no, pring->ringno,
+ irsp->un.ulpWord[0],
+ irsp->un.ulpWord[1],
+ irsp->un.ulpWord[2],
+ irsp->un.ulpWord[3],
+ irsp->un.ulpWord[4],
+ irsp->un.ulpWord[5],
+ *(((uint32_t *) irsp) + 6),
+ *(((uint32_t *) irsp) + 7));
+ }
+
+ switch (type) {
+ case LPFC_ABORT_IOCB:
+ case LPFC_SOL_IOCB:
+ /*
+ * Idle exchange closed via ABTS from port. No iocb
+ * resources need to be recovered.
+ */
+ if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "%d:0314 IOCB cmd 0x%x"
+ " processed. Skipping"
+ " completion", phba->brd_no,
+ irsp->ulpCommand);
+ break;
+ }
+
+ cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
+ &rspiocbq);
+ if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) {
+ (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
+ &rspiocbq);
+ }
+ break;
+ default:
+ if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
+ char adaptermsg[LPFC_MAX_ADPTMSG];
+ memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
+ memcpy(&adaptermsg[0], (uint8_t *) irsp,
+ MAX_MSG_DATA);
+ dev_warn(&((phba->pcidev)->dev), "lpfc%d: %s",
+ phba->brd_no, adaptermsg);
+ } else {
+ /* Unknown IOCB command */
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "%d:0321 Unknown IOCB command "
+ "Data: x%x, x%x x%x x%x x%x\n",
+ phba->brd_no, type,
+ irsp->ulpCommand,
+ irsp->ulpStatus,
+ irsp->ulpIoTag,
+ irsp->ulpContext);
+ }
+ break;
+ }
+
+ /*
+ * The response IOCB has been processed. Update the ring
+ * pointer in SLIM. If the port response put pointer has not
+ * been updated, sync the pgp->rspPutInx and fetch the new port
+ * response put pointer.
+ */
+ to_slim = phba->MBslimaddr +
+ (SLIMOFF + (pring->ringno * 2) + 1) * 4;
+ writeb(pring->rspidx, to_slim);
+
+ if (pring->rspidx == portRspPut)
+ portRspPut = le32_to_cpu(pgp->rspPutInx);
+ }
+
+ ha_copy = readl(phba->HAregaddr);
+ ha_copy >>= (LPFC_FCP_RING * 4);
+
+ if ((rsp_cmpl > 0) && (ha_copy & HA_R0RE_REQ)) {
+ pring->stats.iocb_rsp_full++;
+ status = ((CA_R0ATT | CA_R0RE_RSP) << (LPFC_FCP_RING * 4));
+ writel(status, phba->CAregaddr);
+ readl(phba->CAregaddr);
+ }
+ if ((ha_copy & HA_R0CE_RSP) &&
+ (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
+ pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
+ pring->stats.iocb_cmd_empty++;
+
+ /* Force update of the local copy of cmdGetInx */
+ pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
+ lpfc_sli_resume_iocb(phba, pring);
+
+ if ((pring->lpfc_sli_cmd_available))
+ (pring->lpfc_sli_cmd_available) (phba, pring);
+
+ }
+
+ return;
+}
+
+/*
+ * This routine presumes LPFC_FCP_RING handling and doesn't bother
+ * to check it explicitly.
+ */
+static int
+lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba,
+ struct lpfc_sli_ring * pring, uint32_t mask)
+{
+ struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno];
+ IOCB_t *irsp = NULL;
+ IOCB_t *entry = NULL;
+ struct lpfc_iocbq *cmdiocbq = NULL;
+ struct lpfc_iocbq rspiocbq;
+ uint32_t status;
+ uint32_t portRspPut, portRspMax;
+ int rc = 1;
+ lpfc_iocb_type type;
+ unsigned long iflag;
+ uint32_t rsp_cmpl = 0;
+ void __iomem *to_slim;
+
+ spin_lock_irqsave(phba->host->host_lock, iflag);
+ pring->stats.iocb_event++;
+
+ /*
+ * The next available response entry should never exceed the maximum
+ * entries. If it does, treat it as an adapter hardware error.
+ */
+ portRspMax = pring->numRiocb;
+ portRspPut = le32_to_cpu(pgp->rspPutInx);
+ if (unlikely(portRspPut >= portRspMax)) {
+ lpfc_sli_rsp_pointers_error(phba, pring);
+ spin_unlock_irqrestore(phba->host->host_lock, iflag);
+ return 1;
+ }
+
+ rmb();
+ while (pring->rspidx != portRspPut) {
+ /*
+ * Fetch an entry off the ring and copy it into a local data
+ * structure. The copy involves a byte-swap since the
+ * network byte order and pci byte orders are different.
+ */
+ entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
+
+ if (++pring->rspidx >= portRspMax)
+ pring->rspidx = 0;
+
+ lpfc_sli_pcimem_bcopy((uint32_t *) entry,
+ (uint32_t *) &rspiocbq.iocb,
+ sizeof (IOCB_t));
+ INIT_LIST_HEAD(&(rspiocbq.list));
+ irsp = &rspiocbq.iocb;
+
+ type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
+ pring->stats.iocb_rsp++;
+ rsp_cmpl++;
+
+ if (unlikely(irsp->ulpStatus)) {
+ /* Rsp ring <ringno> error: IOCB */
+ lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
+ "%d:0336 Rsp Ring %d error: IOCB Data: "
+ "x%x x%x x%x x%x x%x x%x x%x x%x\n",
+ phba->brd_no, pring->ringno,
+ irsp->un.ulpWord[0], irsp->un.ulpWord[1],
+ irsp->un.ulpWord[2], irsp->un.ulpWord[3],
+ irsp->un.ulpWord[4], irsp->un.ulpWord[5],
+ *(((uint32_t *) irsp) + 6),
+ *(((uint32_t *) irsp) + 7));
+ }
+
+ switch (type) {
+ case LPFC_ABORT_IOCB:
+ case LPFC_SOL_IOCB:
+ /*
+ * Idle exchange closed via ABTS from port. No iocb
+ * resources need to be recovered.
+ */
+ if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "%d:0333 IOCB cmd 0x%x"
+ " processed. Skipping"
+ " completion\n", phba->brd_no,
+ irsp->ulpCommand);
+ break;
+ }
+
+ cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
+ &rspiocbq);
+ if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) {
+ if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) {
+ (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
+ &rspiocbq);
+ } else {
+ spin_unlock_irqrestore(
+ phba->host->host_lock, iflag);
+ (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
+ &rspiocbq);
+ spin_lock_irqsave(phba->host->host_lock,
+ iflag);
+ }
+ }
+ break;
+ case LPFC_UNSOL_IOCB:
+ spin_unlock_irqrestore(phba->host->host_lock, iflag);
+ lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
+ spin_lock_irqsave(phba->host->host_lock, iflag);
+ break;
+ default:
+ if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
+ char adaptermsg[LPFC_MAX_ADPTMSG];
+ memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
+ memcpy(&adaptermsg[0], (uint8_t *) irsp,
+ MAX_MSG_DATA);
+ dev_warn(&((phba->pcidev)->dev), "lpfc%d: %s",
+ phba->brd_no, adaptermsg);
+ } else {
+ /* Unknown IOCB command */
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "%d:0334 Unknown IOCB command "
+ "Data: x%x, x%x x%x x%x x%x\n",
+ phba->brd_no, type, irsp->ulpCommand,
+ irsp->ulpStatus, irsp->ulpIoTag,
+ irsp->ulpContext);
+ }
+ break;
+ }
+
+ /*
+ * The response IOCB has been processed. Update the ring
+ * pointer in SLIM. If the port response put pointer has not
+ * been updated, sync the pgp->rspPutInx and fetch the new port
+ * response put pointer.
+ */
+ to_slim = phba->MBslimaddr +
+ (SLIMOFF + (pring->ringno * 2) + 1) * 4;
+ writel(pring->rspidx, to_slim);
+
+ if (pring->rspidx == portRspPut)
+ portRspPut = le32_to_cpu(pgp->rspPutInx);
+ }
+
+ if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
+ pring->stats.iocb_rsp_full++;
+ status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
+ writel(status, phba->CAregaddr);
+ readl(phba->CAregaddr);
+ }
+ if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
+ pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
+ pring->stats.iocb_cmd_empty++;
+
+ /* Force update of the local copy of cmdGetInx */
+ pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
+ lpfc_sli_resume_iocb(phba, pring);
+
+ if ((pring->lpfc_sli_cmd_available))
+ (pring->lpfc_sli_cmd_available) (phba, pring);
+
+ }
+
+ spin_unlock_irqrestore(phba->host->host_lock, iflag);
+ return rc;
+}
+
+
+int
+lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba,
+ struct lpfc_sli_ring * pring, uint32_t mask)
+{
+ IOCB_t *entry;
+ IOCB_t *irsp = NULL;
+ struct lpfc_iocbq *rspiocbp = NULL;
+ struct lpfc_iocbq *next_iocb;
+ struct lpfc_iocbq *cmdiocbp;
+ struct lpfc_iocbq *saveq;
+ struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno];
+ uint8_t iocb_cmd_type;
+ lpfc_iocb_type type;
+ uint32_t status, free_saveq;
+ uint32_t portRspPut, portRspMax;
+ int rc = 1;
+ unsigned long iflag;
+ void __iomem *to_slim;
+
+ spin_lock_irqsave(phba->host->host_lock, iflag);
+ pring->stats.iocb_event++;
+
+ /*
+ * The next available response entry should never exceed the maximum
+ * entries. If it does, treat it as an adapter hardware error.
+ */
+ portRspMax = pring->numRiocb;
+ portRspPut = le32_to_cpu(pgp->rspPutInx);
+ if (portRspPut >= portRspMax) {
+ /*
+ * Ring <ringno> handler: portRspPut <portRspPut> is bigger then
+ * rsp ring <portRspMax>
+ */
+ lpfc_printf_log(phba,
+ KERN_ERR,
+ LOG_SLI,
+ "%d:0303 Ring %d handler: portRspPut %d "
+ "is bigger then rsp ring %d\n",
+ phba->brd_no,
+ pring->ringno, portRspPut, portRspMax);
+
+ phba->hba_state = LPFC_HBA_ERROR;
+ spin_unlock_irqrestore(phba->host->host_lock, iflag);
+
+ phba->work_hs = HS_FFER3;
+ lpfc_handle_eratt(phba);
+
+ return 1;
+ }
+
+ rmb();
+ while (pring->rspidx != portRspPut) {
/*
- * When the ulpLe field is set, the entire Command has been
- * received. Start by getting a pointer to the first iocb entry
- * in the chain.
+ * Build a completion list and call the appropriate handler.
+ * The process is to get the next available response iocb, get
+ * a free iocb from the list, copy the response data into the
+ * free iocb, insert to the continuation list, and update the
+ * next response index to slim. This process makes response
+ * iocb's in the ring available to DMA as fast as possible but
+ * pays a penalty for a copy operation. Since the iocb is
+ * only 32 bytes, this penalty is considered small relative to
+ * the PCI reads for register values and a slim write. When
+ * the ulpLe field is set, the entire Command has been
+ * received.
*/
+ entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
+ rspiocbp = lpfc_sli_get_iocbq(phba);
+ if (rspiocbp == NULL) {
+ printk(KERN_ERR "%s: out of buffers! Failing "
+ "completion.\n", __FUNCTION__);
+ break;
+ }
+
+ lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb, sizeof (IOCB_t));
+ irsp = &rspiocbp->iocb;
+
+ if (++pring->rspidx >= portRspMax)
+ pring->rspidx = 0;
+
+ to_slim = phba->MBslimaddr + (SLIMOFF + (pring->ringno * 2)
+ + 1) * 4;
+ writel(pring->rspidx, to_slim);
+
+ if (list_empty(&(pring->iocb_continueq))) {
+ list_add(&rspiocbp->list, &(pring->iocb_continueq));
+ } else {
+ list_add_tail(&rspiocbp->list,
+ &(pring->iocb_continueq));
+ }
+
+ pring->iocb_continueq_cnt++;
if (irsp->ulpLe) {
/*
* By default, the driver expects to free all resources
* associated with this iocb completion.
*/
free_saveq = 1;
- saveq = list_entry(pring->iocb_continueq.next,
- struct lpfc_iocbq, list);
+ saveq = list_get_first(&pring->iocb_continueq,
+ struct lpfc_iocbq, list);
irsp = &(saveq->iocb);
list_del_init(&pring->iocb_continueq);
pring->iocb_continueq_cnt = 0;
- psli->slistat.iocbRsp[ringno]++;
+ pring->stats.iocb_rsp++;
- if(irsp->ulpStatus) {
+ if (irsp->ulpStatus) {
/* Rsp ring <ringno> error: IOCB */
lpfc_printf_log(phba,
KERN_WARNING,
LOG_SLI,
- "%d:0324 Rsp Ring %d error: IOCB Data: "
+ "%d:0328 Rsp Ring %d error: IOCB Data: "
"x%x x%x x%x x%x x%x x%x x%x x%x\n",
phba->brd_no,
- ringno,
+ pring->ringno,
irsp->un.ulpWord[0],
irsp->un.ulpWord[1],
irsp->un.ulpWord[2],
*(((uint32_t *) irsp) + 7));
}
- /* Determine if IOCB command is a solicited or
- unsolicited event */
- type =
- lpfc_sli_iocb_cmd_type[(irsp->
- ulpCommand &
- CMD_IOCB_MASK)];
+ /*
+ * Fetch the IOCB command type and call the correct
+ * completion routine. Solicited and Unsolicited
+ * IOCBs on the ELS ring get freed back to the
+ * lpfc_iocb_list by the discovery kernel thread.
+ */
+ iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
+ type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
if (type == LPFC_SOL_IOCB) {
spin_unlock_irqrestore(phba->host->host_lock,
iflag);
rc = lpfc_sli_process_sol_iocb(phba, pring,
saveq);
spin_lock_irqsave(phba->host->host_lock, iflag);
- /*
- * If this solicted completion is an ELS
- * command, don't free the resources now because
- * the discoverytasklet does later.
- */
- if (pring->ringno == LPFC_ELS_RING)
- free_saveq = 0;
- else
- free_saveq = 1;
-
} else if (type == LPFC_UNSOL_IOCB) {
spin_unlock_irqrestore(phba->host->host_lock,
iflag);
rc = lpfc_sli_process_unsol_iocb(phba, pring,
saveq);
spin_lock_irqsave(phba->host->host_lock, iflag);
-
- /*
- * If this unsolicted completion is an ELS
- * command, don't free the resources now because
- * the discoverytasklet does later.
- */
- if (pring->ringno == LPFC_ELS_RING)
- free_saveq = 0;
- else
- free_saveq = 1;
-
} else if (type == LPFC_ABORT_IOCB) {
- /* Solicited ABORT Responses */
- /* Based on the iotag field, get the cmd IOCB
- from the txcmplq */
if ((irsp->ulpCommand != CMD_XRI_ABORTED_CX) &&
((cmdiocbp =
- lpfc_sli_ringtxcmpl_get(phba, pring,
- saveq, 0)))) {
+ lpfc_sli_iocbq_lookup(phba, pring,
+ saveq)))) {
/* Call the specified completion
routine */
if (cmdiocbp->iocb_cmpl) {
spin_lock_irqsave(
phba->host->host_lock,
iflag);
- } else {
- mempool_free(cmdiocbp,
- phba->iocb_mem_pool);
- }
+ } else
+ lpfc_sli_release_iocbq(phba,
+ cmdiocbp);
}
} else if (type == LPFC_UNKNOWN_IOCB) {
if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
lpfc_printf_log(phba,
KERN_ERR,
LOG_SLI,
- "%d:0321 Unknown IOCB command "
+ "%d:0335 Unknown IOCB command "
"Data: x%x x%x x%x x%x\n",
phba->brd_no,
irsp->ulpCommand,
}
if (free_saveq) {
- /*
- * Free up iocb buffer chain for command just
- * processed
- */
- if (!list_empty(&pring->iocb_continueq)) {
+ if (!list_empty(&saveq->list)) {
list_for_each_entry_safe(rspiocbp,
- next_iocb,
- &pring->iocb_continueq, list) {
- list_del_init(&rspiocbp->list);
- mempool_free(rspiocbp,
- phba->iocb_mem_pool);
+ next_iocb,
+ &saveq->list,
+ list) {
+ list_del(&rspiocbp->list);
+ lpfc_sli_release_iocbq(phba,
+ rspiocbp);
}
}
- mempool_free( saveq, phba->iocb_mem_pool);
+ lpfc_sli_release_iocbq(phba, saveq);
}
}
- /* Entire Command has been received */
- entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
-
- /* If the port response put pointer has not been updated, sync
+ /*
+ * If the port response put pointer has not been updated, sync
* the pgp->rspPutInx in the MAILBOX_tand fetch the new port
* response put pointer.
*/
if (pring->rspidx == portRspPut) {
portRspPut = le32_to_cpu(pgp->rspPutInx);
}
- } /* while (pring->rspidx != portRspPut) */
+ } /* while (pring->rspidx != portRspPut) */
if ((rspiocbp != 0) && (mask & HA_R0RE_REQ)) {
/* At least one response entry has been freed */
- psli->slistat.iocbRspFull[ringno]++;
+ pring->stats.iocb_rsp_full++;
/* SET RxRE_RSP in Chip Att register */
- status = ((CA_R0ATT | CA_R0RE_RSP) << (ringno * 4));
+ status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
writel(status, phba->CAregaddr);
readl(phba->CAregaddr); /* flush */
}
if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
- psli->slistat.iocbCmdEmpty[ringno]++;
- /*
- * Force update of the local copy of cmdGetInx
- */
+ pring->stats.iocb_cmd_empty++;
+
+ /* Force update of the local copy of cmdGetInx */
pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
lpfc_sli_resume_iocb(phba, pring);
-
- if ((psli->sliinit.ringinit[ringno].lpfc_sli_cmd_available))
- (psli->sliinit.ringinit[ringno].
- lpfc_sli_cmd_available) (phba, pring);
+
+ if ((pring->lpfc_sli_cmd_available))
+ (pring->lpfc_sli_cmd_available) (phba, pring);
}
spin_unlock_irqrestore(phba->host->host_lock, iflag);
- return (rc);
+ return rc;
}
-static uint32_t
-lpfc_intr_prep(struct lpfc_hba * phba)
-{
- uint32_t ha_copy;
-
- /* Ignore all interrupts during initialization. */
- if (phba->hba_state < LPFC_LINK_DOWN)
- return (0);
-
- /* Read host attention register to determine interrupt source */
- ha_copy = readl(phba->HAregaddr);
-
- /* Clear Attention Sources, except ERATT (to preserve status) & LATT
- * (ha_copy & ~(HA_ERATT | HA_LATT));
- */
- writel((ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
- readl(phba->HAregaddr); /* flush */
- return (ha_copy);
-} /* lpfc_intr_prep */
-
int
-lpfc_sli_intr(struct lpfc_hba * phba)
-{
- struct lpfc_sli *psli;
- struct lpfc_sli_ring *pring;
- uint32_t ha_copy, status;
- int i;
-
- psli = &phba->sli;
- psli->slistat.sliIntr++;
-
- /*
- * Call the HBA to see if it is interrupting. If not, don't claim
- * the interrupt
- */
- ha_copy = lpfc_intr_prep(phba);
- if (!ha_copy) {
- return (1);
- }
-
- if (ha_copy & HA_ERATT) {
- /*
- * There was a link/board error. Read the status register to
- * retrieve the error event and process it.
- */
- psli->slistat.errAttnEvent++;
- status = readl(phba->HSregaddr);
-
- /* Clear Chip error bit */
- writel(HA_ERATT, phba->HAregaddr);
- readl(phba->HAregaddr); /* flush */
-
- lpfc_handle_eratt(phba, status);
- return (0);
- }
-
- if (ha_copy & HA_MBATT) {
- /* There was a Mailbox event. */
- lpfc_sli_handle_mb_event(phba);
- }
-
- if (ha_copy & HA_LATT) {
- /*
- * There was a link attention event. Provided the driver is in
- * a state to handle link events, handle this event.
- */
- if (psli->sliinit.sli_flag & LPFC_PROCESS_LA) {
- lpfc_handle_latt(phba);
- }
- }
-
- /* Process all events on each ring */
- for (i = 0; i < psli->sliinit.num_rings; i++) {
- pring = &psli->ring[i];
- if ((ha_copy & HA_RXATT)
- || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
- if (pring->flag & LPFC_STOP_IOCB_MASK) {
- pring->flag |= LPFC_DEFERRED_RING_EVENT;
- } else {
- lpfc_sli_handle_ring_event(phba, pring,
- (ha_copy &
- HA_RXMASK));
- pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
- }
- }
- ha_copy = (ha_copy >> 4);
- }
-
- return (0);
-}
-
-static int
-lpfc_sli_abort_iocb_ring(struct lpfc_hba * phba, struct lpfc_sli_ring * pring,
- uint32_t flag)
+lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
{
- struct lpfc_sli *psli;
struct lpfc_iocbq *iocb, *next_iocb;
- struct lpfc_iocbq *abtsiocbp;
IOCB_t *icmd = NULL, *cmd = NULL;
int errcnt;
- uint16_t iotag;
- psli = &phba->sli;
errcnt = 0;
/* Error everything on txq and txcmplq
* First do the txq.
*/
+ spin_lock_irq(phba->host->host_lock);
list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
list_del_init(&iocb->list);
if (iocb->iocb_cmpl) {
icmd = &iocb->iocb;
icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
+ spin_unlock_irq(phba->host->host_lock);
(iocb->iocb_cmpl) (phba, iocb, iocb);
- } else {
- mempool_free( iocb, phba->iocb_mem_pool);
- }
+ spin_lock_irq(phba->host->host_lock);
+ } else
+ lpfc_sli_release_iocbq(phba, iocb);
}
-
pring->txq_cnt = 0;
INIT_LIST_HEAD(&(pring->txq));
list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
cmd = &iocb->iocb;
- if (flag == LPFC_SLI_ABORT_IMED) {
- /*
- * Imediate abort of IOCB, clear fast_lookup entry,
- * if any, deque and call compl
- */
- iotag = cmd->ulpIoTag;
- if (pring->fast_lookup &&
- iotag &&
- (iotag <
- psli->sliinit.ringinit[pring->ringno].fast_iotag))
- *(pring->fast_lookup + iotag) = NULL;
+ /*
+ * Imediate abort of IOCB, deque and call compl
+ */
- list_del_init(&iocb->list);
- pring->txcmplq_cnt--;
+ list_del_init(&iocb->list);
+ pring->txcmplq_cnt--;
- if (iocb->iocb_cmpl) {
- cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
- cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
- (iocb->iocb_cmpl) (phba, iocb, iocb);
- } else {
- mempool_free( iocb, phba->iocb_mem_pool);
- }
- continue;
- }
+ if (iocb->iocb_cmpl) {
+ cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
+ cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
+ spin_unlock_irq(phba->host->host_lock);
+ (iocb->iocb_cmpl) (phba, iocb, iocb);
+ spin_lock_irq(phba->host->host_lock);
+ } else
+ lpfc_sli_release_iocbq(phba, iocb);
+ }
- /* issue ABTS for this IOCB based on iotag */
+ INIT_LIST_HEAD(&pring->txcmplq);
+ pring->txcmplq_cnt = 0;
+ spin_unlock_irq(phba->host->host_lock);
- if ((abtsiocbp = mempool_alloc(phba->iocb_mem_pool,
- GFP_ATOMIC)) == 0) {
- errcnt++;
- continue;
- }
- memset(abtsiocbp, 0, sizeof (struct lpfc_iocbq));
- icmd = &abtsiocbp->iocb;
+ return errcnt;
+}
+
+int
+lpfc_sli_brdready(struct lpfc_hba * phba, uint32_t mask)
+{
+ uint32_t status;
+ int i = 0;
+ int retval = 0;
- icmd->un.acxri.abortType = ABORT_TYPE_ABTS;
- icmd->un.acxri.abortContextTag = cmd->ulpContext;
- icmd->un.acxri.abortIoTag = cmd->ulpIoTag;
+ /* Read the HBA Host Status Register */
+ status = readl(phba->HSregaddr);
- icmd->ulpLe = 1;
- icmd->ulpClass = cmd->ulpClass;
- if (phba->hba_state >= LPFC_LINK_UP) {
- icmd->ulpCommand = CMD_ABORT_XRI_CN;
- } else {
- icmd->ulpCommand = CMD_CLOSE_XRI_CN;
+ /*
+ * Check status register every 100ms for 5 retries, then every
+ * 500ms for 5, then every 2.5 sec for 5, then reset board and
+ * every 2.5 sec for 4.
+ * Break our of the loop if errors occurred during init.
+ */
+ while (((status & mask) != mask) &&
+ !(status & HS_FFERM) &&
+ i++ < 20) {
- }
+ if (i <= 5)
+ msleep(10);
+ else if (i <= 10)
+ msleep(500);
+ else
+ msleep(2500);
- if (lpfc_sli_issue_iocb
- (phba, pring, abtsiocbp, 0) == IOCB_ERROR) {
- mempool_free(abtsiocbp, phba->iocb_mem_pool);
- errcnt++;
- continue;
+ if (i == 15) {
+ phba->hba_state = LPFC_STATE_UNKNOWN; /* Do post */
+ lpfc_sli_brdrestart(phba);
}
- /* The rsp ring completion will remove IOCB from txcmplq when
- * abort is read by HBA.
- */
+ /* Read the HBA Host Status Register */
+ status = readl(phba->HSregaddr);
}
- if (flag == LPFC_SLI_ABORT_IMED) {
- INIT_LIST_HEAD(&(pring->txcmplq));
- pring->txcmplq_cnt = 0;
+ /* Check to see if any errors occurred during init */
+ if ((status & HS_FFERM) || (i >= 20)) {
+ phba->hba_state = LPFC_HBA_ERROR;
+ retval = 1;
}
- return (errcnt);
+ return retval;
}
-int
-lpfc_sli_brdreset(struct lpfc_hba * phba)
+#define BARRIER_TEST_PATTERN (0xdeadbeef)
+
+void lpfc_reset_barrier(struct lpfc_hba * phba)
{
- MAILBOX_t *swpmb;
- struct lpfc_sli *psli;
- struct lpfc_sli_ring *pring;
- uint16_t cfg_value, skip_post;
- volatile uint32_t word0;
- int i;
- void *to_slim;
- struct lpfc_dmabuf *mp, *next_mp;
+ uint32_t __iomem *resp_buf;
+ uint32_t __iomem *mbox_buf;
+ volatile uint32_t mbox;
+ uint32_t hc_copy;
+ int i;
+ uint8_t hdrtype;
+
+ pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
+ if (hdrtype != 0x80 ||
+ (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
+ FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
+ return;
- psli = &phba->sli;
+ /*
+ * Tell the other part of the chip to suspend temporarily all
+ * its DMA activity.
+ */
+ resp_buf = phba->MBslimaddr;
+
+ /* Disable the error attention */
+ hc_copy = readl(phba->HCregaddr);
+ writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
- /* A board reset must use REAL SLIM. */
- psli->sliinit.sli_flag &= ~LPFC_SLI2_ACTIVE;
+ if (readl(phba->HAregaddr) & HA_ERATT) {
+ /* Clear Chip error bit */
+ writel(HA_ERATT, phba->HAregaddr);
+ phba->stopped = 1;
+ }
- word0 = 0;
- swpmb = (MAILBOX_t *) & word0;
- swpmb->mbxCommand = MBX_RESTART;
- swpmb->mbxHc = 1;
+ mbox = 0;
+ ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
+ ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
- to_slim = phba->MBslimaddr;
- writel(*(uint32_t *) swpmb, to_slim);
- readl(to_slim); /* flush */
+ writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
+ mbox_buf = phba->MBslimaddr;
+ writel(mbox, mbox_buf);
- /* Only skip post after fc_ffinit is completed */
- if (phba->hba_state) {
- skip_post = 1;
- word0 = 1; /* This is really setting up word1 */
- } else {
- skip_post = 0;
- word0 = 0; /* This is really setting up word1 */
+ for (i = 0;
+ readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++)
+ mdelay(1);
+
+ if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) {
+ if (phba->sli.sli_flag & LPFC_SLI2_ACTIVE ||
+ phba->stopped)
+ goto restore_hc;
+ else
+ goto clear_errat;
}
- to_slim = (uint8_t *) phba->MBslimaddr + sizeof (uint32_t);
- writel(*(uint32_t *) swpmb, to_slim);
- readl(to_slim); /* flush */
- /* Reset HBA */
+ ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
+ for (i = 0; readl(resp_buf) != mbox && i < 500; i++)
+ mdelay(1);
+
+clear_errat:
+
+ while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500)
+ mdelay(1);
+
+ if (readl(phba->HAregaddr) & HA_ERATT) {
+ writel(HA_ERATT, phba->HAregaddr);
+ phba->stopped = 1;
+ }
+
+restore_hc:
+ writel(hc_copy, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+}
+
+int
+lpfc_sli_brdkill(struct lpfc_hba * phba)
+{
+ struct lpfc_sli *psli;
+ LPFC_MBOXQ_t *pmb;
+ uint32_t status;
+ uint32_t ha_copy;
+ int retval;
+ int i = 0;
+
+ psli = &phba->sli;
+
+ /* Kill HBA */
lpfc_printf_log(phba,
KERN_INFO,
LOG_SLI,
- "%d:0325 Reset HBA Data: x%x x%x\n",
+ "%d:0329 Kill HBA Data: x%x x%x\n",
phba->brd_no,
phba->hba_state,
- psli->sliinit.sli_flag);
+ psli->sli_flag);
- /* Turn off SERR, PERR in PCI cmd register */
- phba->hba_state = LPFC_INIT_START;
+ if ((pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
+ GFP_KERNEL)) == 0)
+ return 1;
+
+ /* Disable the error attention */
+ spin_lock_irq(phba->host->host_lock);
+ status = readl(phba->HCregaddr);
+ status &= ~HC_ERINT_ENA;
+ writel(status, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+ spin_unlock_irq(phba->host->host_lock);
+
+ lpfc_kill_board(phba, pmb);
+ pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
+
+ if (retval != MBX_SUCCESS) {
+ if (retval != MBX_BUSY)
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return 1;
+ }
+
+ psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
+
+ mempool_free(pmb, phba->mbox_mem_pool);
+
+ /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
+ * attention every 100ms for 3 seconds. If we don't get ERATT after
+ * 3 seconds we still set HBA_ERROR state because the status of the
+ * board is now undefined.
+ */
+ ha_copy = readl(phba->HAregaddr);
+
+ while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
+ mdelay(100);
+ ha_copy = readl(phba->HAregaddr);
+ }
+
+ del_timer_sync(&psli->mbox_tmo);
+ if (ha_copy & HA_ERATT) {
+ writel(HA_ERATT, phba->HAregaddr);
+ phba->stopped = 1;
+ }
+ spin_lock_irq(phba->host->host_lock);
+ psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ spin_unlock_irq(phba->host->host_lock);
+
+ psli->mbox_active = NULL;
+ lpfc_hba_down_post(phba);
+ phba->hba_state = LPFC_HBA_ERROR;
+
+ return (ha_copy & HA_ERATT ? 0 : 1);
+}
+
+int
+lpfc_sli_brdreset(struct lpfc_hba * phba)
+{
+ struct lpfc_sli *psli;
+ struct lpfc_sli_ring *pring;
+ uint16_t cfg_value;
+ int i;
+
+ psli = &phba->sli;
+
+ /* Reset HBA */
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "%d:0325 Reset HBA Data: x%x x%x\n", phba->brd_no,
+ phba->hba_state, psli->sli_flag);
/* perform board reset */
phba->fc_eventTag = 0;
(cfg_value &
~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
+ psli->sli_flag &= ~(LPFC_SLI2_ACTIVE | LPFC_PROCESS_LA);
/* Now toggle INITFF bit in the Host Control Register */
writel(HC_INITFF, phba->HCregaddr);
mdelay(1);
readl(phba->HCregaddr); /* flush */
/* Restore PCI cmd register */
-
pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
- phba->hba_state = LPFC_INIT_START;
/* Initialize relevant SLI info */
- for (i = 0; i < psli->sliinit.num_rings; i++) {
+ for (i = 0; i < psli->num_rings; i++) {
pring = &psli->ring[i];
pring->flag = 0;
pring->rspidx = 0;
pring->missbufcnt = 0;
}
- if (skip_post) {
- mdelay(100);
- } else {
- mdelay(2000);
- }
-
- /* Cleanup preposted buffers on the ELS ring */
- pring = &psli->ring[LPFC_ELS_RING];
- list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
- list_del(&mp->list);
- pring->postbufq_cnt--;
- lpfc_mbuf_free(phba, mp->virt, mp->phys);
- kfree(mp);
- }
-
- for (i = 0; i < psli->sliinit.num_rings; i++) {
- pring = &psli->ring[i];
- lpfc_sli_abort_iocb_ring(phba, pring, LPFC_SLI_ABORT_IMED);
- }
-
- return (0);
-}
-
-static void
-lpfc_setup_slim_access(struct lpfc_hba *phba)
-{
- phba->MBslimaddr = phba->slim_memmap_p;
- phba->HAregaddr = (uint32_t *) (phba->ctrl_regs_memmap_p) +
- HA_REG_OFFSET;
- phba->HCregaddr = (uint32_t *) (phba->ctrl_regs_memmap_p) +
- HC_REG_OFFSET;
- phba->CAregaddr = (uint32_t *) (phba->ctrl_regs_memmap_p) +
- CA_REG_OFFSET;
- phba->HSregaddr = (uint32_t *) (phba->ctrl_regs_memmap_p) +
- HS_REG_OFFSET;
- return;
+ phba->hba_state = LPFC_WARM_START;
+ return 0;
}
int
-lpfc_sli_hba_setup(struct lpfc_hba * phba)
+lpfc_sli_brdrestart(struct lpfc_hba * phba)
{
+ MAILBOX_t *mb;
struct lpfc_sli *psli;
- LPFC_MBOXQ_t *pmb;
- int read_rev_reset, i, rc;
- uint32_t status;
+ uint16_t skip_post;
+ volatile uint32_t word0;
+ void __iomem *to_slim;
+
+ spin_lock_irq(phba->host->host_lock);
psli = &phba->sli;
- /* Setep SLI interface for HBA register and HBA SLIM access */
- lpfc_setup_slim_access(phba);
+ /* Restart HBA */
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "%d:0337 Restart HBA Data: x%x x%x\n", phba->brd_no,
+ phba->hba_state, psli->sli_flag);
- /* Set board state to initialization started */
- phba->hba_state = LPFC_INIT_START;
- read_rev_reset = 0;
+ word0 = 0;
+ mb = (MAILBOX_t *) &word0;
+ mb->mbxCommand = MBX_RESTART;
+ mb->mbxHc = 1;
- /* On some platforms/OS's, the driver can't rely on the state the
- * adapter may be in. For this reason, the driver is allowed to reset
- * the HBA before initialization.
- */
- if (lpfc_sli_reset_on_init) {
- phba->hba_state = 0; /* Don't skip post */
- lpfc_sli_brdreset(phba);
- phba->hba_state = LPFC_INIT_START;
+ lpfc_reset_barrier(phba);
+
+ to_slim = phba->MBslimaddr;
+ writel(*(uint32_t *) mb, to_slim);
+ readl(to_slim); /* flush */
- /* Sleep for 2.5 sec */
- msleep(2500);
+ /* Only skip post after fc_ffinit is completed */
+ if (phba->hba_state) {
+ skip_post = 1;
+ word0 = 1; /* This is really setting up word1 */
+ } else {
+ skip_post = 0;
+ word0 = 0; /* This is really setting up word1 */
}
+ to_slim = phba->MBslimaddr + sizeof (uint32_t);
+ writel(*(uint32_t *) mb, to_slim);
+ readl(to_slim); /* flush */
+
+ lpfc_sli_brdreset(phba);
+ phba->stopped = 0;
+ phba->hba_state = LPFC_INIT_START;
+
+ spin_unlock_irq(phba->host->host_lock);
+
+ memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
+ psli->stats_start = get_seconds();
+
+ if (skip_post)
+ mdelay(100);
+ else
+ mdelay(2000);
+
+ lpfc_hba_down_post(phba);
+
+ return 0;
+}
+
+static int
+lpfc_sli_chipset_init(struct lpfc_hba *phba)
+{
+ uint32_t status, i = 0;
-top:
/* Read the HBA Host Status Register */
status = readl(phba->HSregaddr);
}
if (i == 15) {
- phba->hba_state = 0; /* Don't skip post */
- lpfc_sli_brdreset(phba);
- phba->hba_state = LPFC_INIT_START;
+ phba->hba_state = LPFC_STATE_UNKNOWN; /* Do post */
+ lpfc_sli_brdrestart(phba);
}
/* Read the HBA Host Status Register */
status = readl(phba->HSregaddr);
/* setup host attn register */
writel(0xffffffff, phba->HAregaddr);
readl(phba->HAregaddr); /* flush */
+ return 0;
+}
- /* Get a Mailbox buffer to setup mailbox commands for HBA
- initialization */
- if ((pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
- GFP_ATOMIC)) == 0) {
+int
+lpfc_sli_hba_setup(struct lpfc_hba * phba)
+{
+ LPFC_MBOXQ_t *pmb;
+ uint32_t resetcount = 0, rc = 0, done = 0;
+
+ pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!pmb) {
phba->hba_state = LPFC_HBA_ERROR;
return -ENOMEM;
}
+ while (resetcount < 2 && !done) {
+ spin_lock_irq(phba->host->host_lock);
+ phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
+ spin_unlock_irq(phba->host->host_lock);
+ phba->hba_state = LPFC_STATE_UNKNOWN;
+ lpfc_sli_brdrestart(phba);
+ msleep(2500);
+ rc = lpfc_sli_chipset_init(phba);
+ if (rc)
+ break;
+
+ spin_lock_irq(phba->host->host_lock);
+ phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ spin_unlock_irq(phba->host->host_lock);
+ resetcount++;
+
/* Call pre CONFIG_PORT mailbox command initialization. A value of 0
* means the call was successful. Any other nonzero value is a failure,
* but if ERESTART is returned, the driver may reset the HBA and try
* again.
*/
- if ((rc = lpfc_config_port_prep(phba))) {
- if ((rc == -ERESTART) && (read_rev_reset == 0)) {
- mempool_free( pmb, phba->mbox_mem_pool);
- phba->hba_state = 0; /* Don't skip post */
- lpfc_sli_brdreset(phba);
- phba->hba_state = LPFC_INIT_START;
- msleep(500);
- read_rev_reset = 1;
- goto top;
+ rc = lpfc_config_port_prep(phba);
+ if (rc == -ERESTART) {
+ phba->hba_state = 0;
+ continue;
+ } else if (rc) {
+ break;
}
- phba->hba_state = LPFC_HBA_ERROR;
- mempool_free( pmb, phba->mbox_mem_pool);
- return -ENXIO;
- }
- /* Setup and issue mailbox CONFIG_PORT command */
- phba->hba_state = LPFC_INIT_MBX_CMDS;
- lpfc_config_port(phba, pmb);
- if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
- /* Adapter failed to init, mbxCmd <cmd> CONFIG_PORT,
- mbxStatus <status> */
- lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ phba->hba_state = LPFC_INIT_MBX_CMDS;
+ lpfc_config_port(phba, pmb);
+ rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
+ if (rc == MBX_SUCCESS)
+ done = 1;
+ else {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"%d:0442 Adapter failed to init, mbxCmd x%x "
"CONFIG_PORT, mbxStatus x%x Data: x%x\n",
phba->brd_no, pmb->mb.mbxCommand,
pmb->mb.mbxStatus, 0);
-
- /* This clause gives the config_port call is given multiple
- chances to succeed. */
- if (read_rev_reset == 0) {
- mempool_free( pmb, phba->mbox_mem_pool);
- phba->hba_state = 0; /* Don't skip post */
- lpfc_sli_brdreset(phba);
- phba->hba_state = LPFC_INIT_START;
- msleep(2500);
- read_rev_reset = 1;
- goto top;
+ phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE;
}
-
- psli->sliinit.sli_flag &= ~LPFC_SLI2_ACTIVE;
- phba->hba_state = LPFC_HBA_ERROR;
- mempool_free( pmb, phba->mbox_mem_pool);
- return -ENXIO;
- }
-
- if ((rc = lpfc_sli_ring_map(phba))) {
- phba->hba_state = LPFC_HBA_ERROR;
- mempool_free( pmb, phba->mbox_mem_pool);
- return -ENXIO;
- }
- psli->sliinit.sli_flag |= LPFC_PROCESS_LA;
-
- /* Call post CONFIG_PORT mailbox command initialization. */
- if ((rc = lpfc_config_port_post(phba))) {
- phba->hba_state = LPFC_HBA_ERROR;
- mempool_free( pmb, phba->mbox_mem_pool);
- return -ENXIO;
}
- mempool_free( pmb, phba->mbox_mem_pool);
- return 0;
-}
-
+ if (!done)
+ goto lpfc_sli_hba_setup_error;
+ rc = lpfc_sli_ring_map(phba, pmb);
+ if (rc)
+ goto lpfc_sli_hba_setup_error;
+ phba->sli.sli_flag |= LPFC_PROCESS_LA;
+ rc = lpfc_config_port_post(phba);
+ if (rc)
+ goto lpfc_sli_hba_setup_error;
+ goto lpfc_sli_hba_setup_exit;
+lpfc_sli_hba_setup_error:
+ phba->hba_state = LPFC_HBA_ERROR;
+lpfc_sli_hba_setup_exit:
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return rc;
+}
static void
lpfc_mbox_abort(struct lpfc_hba * phba)
{
- struct lpfc_sli *psli;
LPFC_MBOXQ_t *pmbox;
MAILBOX_t *mb;
- struct lpfc_dmabuf *mp;
- psli = &phba->sli;
-
- if (psli->mbox_active) {
- del_timer_sync(&psli->mbox_tmo);
- pmbox = psli->mbox_active;
+ if (phba->sli.mbox_active) {
+ del_timer_sync(&phba->sli.mbox_tmo);
+ phba->work_hba_events &= ~WORKER_MBOX_TMO;
+ pmbox = phba->sli.mbox_active;
mb = &pmbox->mb;
- psli->mbox_active = NULL;
+ phba->sli.mbox_active = NULL;
if (pmbox->mbox_cmpl) {
mb->mbxStatus = MBX_NOT_FINISHED;
(pmbox->mbox_cmpl) (phba, pmbox);
- } else {
- mp = (struct lpfc_dmabuf *) (pmbox->context1);
- if (mp) {
- lpfc_mbuf_free(phba, mp->virt, mp->phys);
- kfree(mp);
- }
- mempool_free( pmbox, phba->mbox_mem_pool);
}
- psli->sliinit.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
}
/* Abort all the non active mailbox commands. */
+ spin_lock_irq(phba->host->host_lock);
pmbox = lpfc_mbox_get(phba);
while (pmbox) {
mb = &pmbox->mb;
if (pmbox->mbox_cmpl) {
mb->mbxStatus = MBX_NOT_FINISHED;
+ spin_unlock_irq(phba->host->host_lock);
(pmbox->mbox_cmpl) (phba, pmbox);
- } else {
- mp = (struct lpfc_dmabuf *) (pmbox->context1);
- if (mp) {
- lpfc_mbuf_free(phba, mp->virt, mp->phys);
- kfree(mp);
- }
- mempool_free( pmbox, phba->mbox_mem_pool);
+ spin_lock_irq(phba->host->host_lock);
}
pmbox = lpfc_mbox_get(phba);
}
+ spin_unlock_irq(phba->host->host_lock);
return;
}
+
/*! lpfc_mbox_timeout
*
* \pre
lpfc_mbox_timeout(unsigned long ptr)
{
struct lpfc_hba *phba;
- struct lpfc_sli *psli;
- LPFC_MBOXQ_t *pmbox;
- MAILBOX_t *mb;
- struct lpfc_dmabuf *mp;
unsigned long iflag;
phba = (struct lpfc_hba *)ptr;
- psli = &phba->sli;
spin_lock_irqsave(phba->host->host_lock, iflag);
+ if (!(phba->work_hba_events & WORKER_MBOX_TMO)) {
+ phba->work_hba_events |= WORKER_MBOX_TMO;
+ if (phba->work_wait)
+ wake_up(phba->work_wait);
+ }
+ spin_unlock_irqrestore(phba->host->host_lock, iflag);
+}
+
+void
+lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
+{
+ LPFC_MBOXQ_t *pmbox;
+ MAILBOX_t *mb;
+
+ spin_lock_irq(phba->host->host_lock);
+ if (!(phba->work_hba_events & WORKER_MBOX_TMO)) {
+ spin_unlock_irq(phba->host->host_lock);
+ return;
+ }
+
+ phba->work_hba_events &= ~WORKER_MBOX_TMO;
- pmbox = psli->mbox_active;
+ pmbox = phba->sli.mbox_active;
mb = &pmbox->mb;
/* Mbox cmd <mbxCommand> timeout */
phba->brd_no,
mb->mbxCommand,
phba->hba_state,
- psli->sliinit.sli_flag,
- psli->mbox_active);
+ phba->sli.sli_flag,
+ phba->sli.mbox_active);
- if (psli->mbox_active == pmbox) {
- psli->mbox_active = NULL;
- if (pmbox->mbox_cmpl) {
- mb->mbxStatus = MBX_NOT_FINISHED;
- (pmbox->mbox_cmpl) (phba, pmbox);
- } else {
- mp = (struct lpfc_dmabuf *) (pmbox->context1);
- if (mp) {
- lpfc_mbuf_free(phba, mp->virt, mp->phys);
- kfree(mp);
- }
- mempool_free( pmbox, phba->mbox_mem_pool);
- }
- psli->sliinit.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ phba->sli.mbox_active = NULL;
+ if (pmbox->mbox_cmpl) {
+ mb->mbxStatus = MBX_NOT_FINISHED;
+ spin_unlock_irq(phba->host->host_lock);
+ (pmbox->mbox_cmpl) (phba, pmbox);
+ spin_lock_irq(phba->host->host_lock);
}
+ phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ spin_unlock_irq(phba->host->host_lock);
lpfc_mbox_abort(phba);
- spin_unlock_irqrestore(phba->host->host_lock, iflag);
return;
}
-
int
lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag)
{
- MAILBOX_t *mbox;
MAILBOX_t *mb;
struct lpfc_sli *psli;
uint32_t status, evtctr;
int i;
unsigned long drvr_flag = 0;
volatile uint32_t word0, ldata;
- void *to_slim;
+ void __iomem *to_slim;
psli = &phba->sli;
- if (flag & MBX_POLL) {
- spin_lock_irqsave(phba->host->host_lock, drvr_flag);
- }
+
+ spin_lock_irqsave(phba->host->host_lock, drvr_flag);
+
mb = &pmbox->mb;
status = MBX_SUCCESS;
- if (psli->sliinit.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
+ if (phba->hba_state == LPFC_HBA_ERROR) {
+ spin_unlock_irqrestore(phba->host->host_lock, drvr_flag);
+
+ /* Mbox command <mbxCommand> cannot issue */
+ LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag)
+ return (MBX_NOT_FINISHED);
+ }
+
+ if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT &&
+ !(readl(phba->HCregaddr) & HC_MBINT_ENA)) {
+ spin_unlock_irqrestore(phba->host->host_lock, drvr_flag);
+ LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag)
+ return (MBX_NOT_FINISHED);
+ }
+
+ if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
/* Polling for a mbox command when another one is already active
* is not allowed in SLI. Also, the driver must have established
* SLI2 mode to queue and process multiple mbox commands.
return (MBX_NOT_FINISHED);
}
- if (!(psli->sliinit.sli_flag & LPFC_SLI2_ACTIVE)) {
-
+ if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) {
+ spin_unlock_irqrestore(phba->host->host_lock,
+ drvr_flag);
/* Mbox command <mbxCommand> cannot issue */
LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag)
return (MBX_NOT_FINISHED);
if (flag & MBX_STOP_IOCB) {
flag &= ~MBX_STOP_IOCB;
/* Now flag each ring */
- for (i = 0; i < psli->sliinit.num_rings; i++) {
+ for (i = 0; i < psli->num_rings; i++) {
/* If the ring is active, flag it */
if (psli->ring[i].cmdringaddr) {
psli->ring[i].flag |=
phba->brd_no,
mb->mbxCommand,
phba->hba_state,
- psli->sliinit.sli_flag,
+ psli->sli_flag,
flag);
- psli->slistat.mboxBusy++;
- if (flag == MBX_POLL) {
- spin_unlock_irqrestore(phba->host->host_lock,
- drvr_flag);
- }
+ psli->slistat.mbox_busy++;
+ spin_unlock_irqrestore(phba->host->host_lock,
+ drvr_flag);
+
return (MBX_BUSY);
}
flag &= ~MBX_STOP_IOCB;
if (flag == MBX_NOWAIT) {
/* Now flag each ring */
- for (i = 0; i < psli->sliinit.num_rings; i++) {
+ for (i = 0; i < psli->num_rings; i++) {
/* If the ring is active, flag it */
if (psli->ring[i].cmdringaddr) {
psli->ring[i].flag |=
}
}
- psli->sliinit.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
+ psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
/* If we are not polling, we MUST be in SLI2 mode */
if (flag != MBX_POLL) {
- if (!(psli->sliinit.sli_flag & LPFC_SLI2_ACTIVE)) {
- psli->sliinit.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
-
+ if (!(psli->sli_flag & LPFC_SLI2_ACTIVE) &&
+ (mb->mbxCommand != MBX_KILL_BOARD)) {
+ psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ spin_unlock_irqrestore(phba->host->host_lock,
+ drvr_flag);
/* Mbox command <mbxCommand> cannot issue */
LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag);
return (MBX_NOT_FINISHED);
}
/* timeout active mbox command */
- mod_timer(&psli->mbox_tmo, jiffies + HZ * LPFC_MBOX_TMO);
+ mod_timer(&psli->mbox_tmo, (jiffies +
+ (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand))));
}
/* Mailbox cmd <cmd> issue */
phba->brd_no,
mb->mbxCommand,
phba->hba_state,
- psli->sliinit.sli_flag,
+ psli->sli_flag,
flag);
- psli->slistat.mboxCmd++;
- evtctr = psli->slistat.mboxEvent;
+ psli->slistat.mbox_cmd++;
+ evtctr = psli->slistat.mbox_event;
/* next set own bit for the adapter and copy over command word */
mb->mbxOwner = OWN_CHIP;
- if (psli->sliinit.sli_flag & LPFC_SLI2_ACTIVE) {
-
+ if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
/* First copy command data to host SLIM area */
- mbox = (MAILBOX_t *) psli->MBhostaddr;
- lpfc_sli_pcimem_bcopy((uint32_t *) mb, (uint32_t *) mbox,
- (sizeof (uint32_t) *
- (MAILBOX_CMD_WSIZE)));
-
- pci_dma_sync_single_for_device(phba->pcidev,
- phba->slim2p_mapping,
- sizeof (MAILBOX_t),
- PCI_DMA_TODEVICE);
+ lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx, MAILBOX_CMD_SIZE);
} else {
if (mb->mbxCommand == MBX_CONFIG_PORT) {
/* copy command data into host mbox for cmpl */
- mbox = (MAILBOX_t *) psli->MBhostaddr;
- lpfc_sli_pcimem_bcopy((uint32_t *) mb,
- (uint32_t *) mbox,
- (sizeof (uint32_t) *
- (MAILBOX_CMD_WSIZE)));
+ lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx,
+ MAILBOX_CMD_SIZE);
}
/* First copy mbox command data to HBA SLIM, skip past first
word */
- to_slim = (uint8_t *) phba->MBslimaddr + sizeof (uint32_t);
- lpfc_memcpy_to_slim(to_slim, (void *)&mb->un.varWords[0],
- (MAILBOX_CMD_WSIZE - 1) * sizeof (uint32_t));
+ to_slim = phba->MBslimaddr + sizeof (uint32_t);
+ lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0],
+ MAILBOX_CMD_SIZE - sizeof (uint32_t));
/* Next copy over first word, with mbxOwner set */
ldata = *((volatile uint32_t *)mb);
if (mb->mbxCommand == MBX_CONFIG_PORT) {
/* switch over to host mailbox */
- psli->sliinit.sli_flag |= LPFC_SLI2_ACTIVE;
+ psli->sli_flag |= LPFC_SLI2_ACTIVE;
}
}
break;
case MBX_POLL:
- i = 0;
psli->mbox_active = NULL;
- if (psli->sliinit.sli_flag & LPFC_SLI2_ACTIVE) {
+ if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
/* First read mbox status word */
- mbox = (MAILBOX_t *) psli->MBhostaddr;
- word0 = *((volatile uint32_t *)mbox);
+ word0 = *((volatile uint32_t *)&phba->slim2p->mbx);
word0 = le32_to_cpu(word0);
} else {
/* First read mbox status word */
/* Read the HBA Host Attention Register */
ha_copy = readl(phba->HAregaddr);
+ i = lpfc_mbox_tmo_val(phba, mb->mbxCommand);
+ i *= 1000; /* Convert to ms */
+
/* Wait for command to complete */
- while (((word0 & OWN_CHIP) == OWN_CHIP)
- || !(ha_copy & HA_MBATT)) {
- if (i++ >= 100) {
- psli->sliinit.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ while (((word0 & OWN_CHIP) == OWN_CHIP) ||
+ (!(ha_copy & HA_MBATT) &&
+ (phba->hba_state > LPFC_WARM_START))) {
+ if (i-- <= 0) {
+ psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
spin_unlock_irqrestore(phba->host->host_lock,
drvr_flag);
return (MBX_NOT_FINISHED);
/* Check if we took a mbox interrupt while we were
polling */
if (((word0 & OWN_CHIP) != OWN_CHIP)
- && (evtctr != psli->slistat.mboxEvent))
+ && (evtctr != psli->slistat.mbox_event))
break;
spin_unlock_irqrestore(phba->host->host_lock,
/* Can be in interrupt context, do not sleep */
/* (or might be called with interrupts disabled) */
- mdelay(i);
+ mdelay(1);
spin_lock_irqsave(phba->host->host_lock, drvr_flag);
- if (psli->sliinit.sli_flag & LPFC_SLI2_ACTIVE) {
+ if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
/* First copy command data */
- mbox = (MAILBOX_t *) psli->MBhostaddr;
- word0 = *((volatile uint32_t *)mbox);
+ word0 = *((volatile uint32_t *)
+ &phba->slim2p->mbx);
word0 = le32_to_cpu(word0);
if (mb->mbxCommand == MBX_CONFIG_PORT) {
MAILBOX_t *slimmb;
slimmb = (MAILBOX_t *) & slimword0;
if (((slimword0 & OWN_CHIP) != OWN_CHIP)
&& slimmb->mbxStatus) {
- psli->sliinit.sli_flag &=
+ psli->sli_flag &=
~LPFC_SLI2_ACTIVE;
word0 = slimword0;
}
ha_copy = readl(phba->HAregaddr);
}
- if (psli->sliinit.sli_flag & LPFC_SLI2_ACTIVE) {
- /* First copy command data */
- mbox = (MAILBOX_t *) psli->MBhostaddr;
+ if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
/* copy results back to user */
- lpfc_sli_pcimem_bcopy((uint32_t *) mbox,
- (uint32_t *) mb,
- (sizeof (uint32_t) *
- MAILBOX_CMD_WSIZE));
+ lpfc_sli_pcimem_bcopy(&phba->slim2p->mbx, mb,
+ MAILBOX_CMD_SIZE);
} else {
/* First copy command data */
- lpfc_memcpy_from_slim((void *)mb,
- phba->MBslimaddr,
- sizeof (uint32_t) * (MAILBOX_CMD_WSIZE));
+ lpfc_memcpy_from_slim(mb, phba->MBslimaddr,
+ MAILBOX_CMD_SIZE);
+ if ((mb->mbxCommand == MBX_DUMP_MEMORY) &&
+ pmbox->context2) {
+ lpfc_memcpy_from_slim((void *)pmbox->context2,
+ phba->MBslimaddr + DMP_RSP_OFFSET,
+ mb->un.varDmp.word_cnt);
+ }
}
writel(HA_MBATT, phba->HAregaddr);
readl(phba->HAregaddr); /* flush */
- psli->sliinit.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
status = mb->mbxStatus;
}
- if (flag == MBX_POLL) {
- spin_unlock_irqrestore(phba->host->host_lock, drvr_flag);
- }
+ spin_unlock_irqrestore(phba->host->host_lock, drvr_flag);
return (status);
}
}
static struct lpfc_iocbq *
-lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
+lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_iocbq ** piocb)
{
struct lpfc_iocbq * nextiocb;
lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_iocbq *piocb, uint32_t flag)
{
- struct lpfc_sli *psli = &phba->sli;
- int ringno = pring->ringno;
struct lpfc_iocbq *nextiocb;
IOCB_t *iocb;
switch (piocb->iocb.ulpCommand) {
case CMD_QUE_RING_BUF_CN:
case CMD_QUE_RING_BUF64_CN:
- case CMD_CLOSE_XRI_CN:
- case CMD_ABORT_XRI_CN:
/*
* For IOCBs, like QUE_RING_BUF, that have no rsp ring
* completion, iocb_cmpl MUST be 0.
* For FCP commands, we must be in a state where we can process link
* attention events.
*/
- } else if (unlikely(pring->ringno == psli->fcp_ring &&
- !(psli->sliinit.sli_flag & LPFC_PROCESS_LA)))
+ } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
+ !(phba->sli.sli_flag & LPFC_PROCESS_LA)))
goto iocb_busy;
- /*
- * Check to see if this is a high priority command.
- * If so bypass tx queue processing.
- */
- if (unlikely((flag & SLI_IOCB_HIGH_PRIORITY) &&
- (iocb = lpfc_sli_next_iocb_slot(phba, pring)))) {
- lpfc_sli_submit_iocb(phba, pring, iocb, piocb);
- piocb = NULL;
- }
-
while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
(nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
-
+
if (iocb)
lpfc_sli_update_ring(phba, pring);
else
goto out_busy;
iocb_busy:
- psli->slistat.iocbCmdDelay[ringno]++;
+ pring->stats.iocb_cmd_delay++;
out_busy:
return IOCB_BUSY;
}
+static int
+lpfc_extra_ring_setup( struct lpfc_hba *phba)
+{
+ struct lpfc_sli *psli;
+ struct lpfc_sli_ring *pring;
+
+ psli = &phba->sli;
+
+ /* Adjust cmd/rsp ring iocb entries more evenly */
+
+ /* Take some away from the FCP ring */
+ pring = &psli->ring[psli->fcp_ring];
+ pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
+ pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
+ pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
+ pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
+
+ /* and give them to the extra ring */
+ pring = &psli->ring[psli->extra_ring];
+
+ pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
+ pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
+ pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
+ pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
+
+ /* Setup default profile for this ring */
+ pring->iotag_max = 4096;
+ pring->num_mask = 1;
+ pring->prt[0].profile = 0; /* Mask 0 */
+ pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
+ pring->prt[0].type = phba->cfg_multi_ring_type;
+ pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
+ return 0;
+}
+
+int
+lpfc_sli_setup(struct lpfc_hba *phba)
+{
+ int i, totiocb = 0;
+ struct lpfc_sli *psli = &phba->sli;
+ struct lpfc_sli_ring *pring;
+
+ psli->num_rings = MAX_CONFIGURED_RINGS;
+ psli->sli_flag = 0;
+ psli->fcp_ring = LPFC_FCP_RING;
+ psli->next_ring = LPFC_FCP_NEXT_RING;
+ psli->extra_ring = LPFC_EXTRA_RING;
+
+ psli->iocbq_lookup = NULL;
+ psli->iocbq_lookup_len = 0;
+ psli->last_iotag = 0;
+
+ for (i = 0; i < psli->num_rings; i++) {
+ pring = &psli->ring[i];
+ switch (i) {
+ case LPFC_FCP_RING: /* ring 0 - FCP */
+ /* numCiocb and numRiocb are used in config_port */
+ pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
+ pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
+ pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
+ pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
+ pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
+ pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
+ pring->iotag_ctr = 0;
+ pring->iotag_max =
+ (phba->cfg_hba_queue_depth * 2);
+ pring->fast_iotag = pring->iotag_max;
+ pring->num_mask = 0;
+ break;
+ case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
+ /* numCiocb and numRiocb are used in config_port */
+ pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
+ pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
+ pring->num_mask = 0;
+ break;
+ case LPFC_ELS_RING: /* ring 2 - ELS / CT */
+ /* numCiocb and numRiocb are used in config_port */
+ pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
+ pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
+ pring->fast_iotag = 0;
+ pring->iotag_ctr = 0;
+ pring->iotag_max = 4096;
+ pring->num_mask = 4;
+ pring->prt[0].profile = 0; /* Mask 0 */
+ pring->prt[0].rctl = FC_ELS_REQ;
+ pring->prt[0].type = FC_ELS_DATA;
+ pring->prt[0].lpfc_sli_rcv_unsol_event =
+ lpfc_els_unsol_event;
+ pring->prt[1].profile = 0; /* Mask 1 */
+ pring->prt[1].rctl = FC_ELS_RSP;
+ pring->prt[1].type = FC_ELS_DATA;
+ pring->prt[1].lpfc_sli_rcv_unsol_event =
+ lpfc_els_unsol_event;
+ pring->prt[2].profile = 0; /* Mask 2 */
+ /* NameServer Inquiry */
+ pring->prt[2].rctl = FC_UNSOL_CTL;
+ /* NameServer */
+ pring->prt[2].type = FC_COMMON_TRANSPORT_ULP;
+ pring->prt[2].lpfc_sli_rcv_unsol_event =
+ lpfc_ct_unsol_event;
+ pring->prt[3].profile = 0; /* Mask 3 */
+ /* NameServer response */
+ pring->prt[3].rctl = FC_SOL_CTL;
+ /* NameServer */
+ pring->prt[3].type = FC_COMMON_TRANSPORT_ULP;
+ pring->prt[3].lpfc_sli_rcv_unsol_event =
+ lpfc_ct_unsol_event;
+ break;
+ }
+ totiocb += (pring->numCiocb + pring->numRiocb);
+ }
+ if (totiocb > MAX_SLI2_IOCB) {
+ /* Too many cmd / rsp ring entries in SLI2 SLIM */
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "%d:0462 Too many cmd / rsp ring entries in "
+ "SLI2 SLIM Data: x%x x%x\n",
+ phba->brd_no, totiocb, MAX_SLI2_IOCB);
+ }
+ if (phba->cfg_multi_ring_support == 2)
+ lpfc_extra_ring_setup(phba);
+
+ return 0;
+}
+
int
lpfc_sli_queue_setup(struct lpfc_hba * phba)
{
struct lpfc_sli *psli;
struct lpfc_sli_ring *pring;
- int i, cnt;
+ int i;
psli = &phba->sli;
+ spin_lock_irq(phba->host->host_lock);
INIT_LIST_HEAD(&psli->mboxq);
/* Initialize list headers for txq and txcmplq as double linked lists */
- for (i = 0; i < psli->sliinit.num_rings; i++) {
+ for (i = 0; i < psli->num_rings; i++) {
pring = &psli->ring[i];
pring->ringno = i;
pring->next_cmdidx = 0;
INIT_LIST_HEAD(&pring->txcmplq);
INIT_LIST_HEAD(&pring->iocb_continueq);
INIT_LIST_HEAD(&pring->postbufq);
- cnt = psli->sliinit.ringinit[i].fast_iotag;
- if (cnt) {
- pring->fast_lookup =
- kmalloc(cnt * sizeof (struct lpfc_iocbq *),
- GFP_KERNEL);
- if (pring->fast_lookup == 0) {
- return (0);
- }
- memset((char *)pring->fast_lookup, 0,
- cnt * sizeof (struct lpfc_iocbq *));
- }
}
+ spin_unlock_irq(phba->host->host_lock);
return (1);
}
struct lpfc_sli *psli;
struct lpfc_sli_ring *pring;
LPFC_MBOXQ_t *pmb;
- struct lpfc_dmabuf *mp;
struct lpfc_iocbq *iocb, *next_iocb;
IOCB_t *icmd = NULL;
int i;
+ unsigned long flags = 0;
psli = &phba->sli;
lpfc_hba_down_prep(phba);
- for (i = 0; i < psli->sliinit.num_rings; i++) {
+ spin_lock_irqsave(phba->host->host_lock, flags);
+
+ for (i = 0; i < psli->num_rings; i++) {
pring = &psli->ring[i];
pring->flag |= LPFC_DEFERRED_RING_EVENT;
/*
* Error everything on the txq since these iocbs have not been
- * given to the FW yet.
+ * given to the FW yet.
*/
pring->txq_cnt = 0;
icmd = &iocb->iocb;
icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
icmd->un.ulpWord[4] = IOERR_SLI_DOWN;
+ spin_unlock_irqrestore(phba->host->host_lock,
+ flags);
(iocb->iocb_cmpl) (phba, iocb, iocb);
- } else {
- mempool_free( iocb, phba->iocb_mem_pool);
- }
+ spin_lock_irqsave(phba->host->host_lock, flags);
+ } else
+ lpfc_sli_release_iocbq(phba, iocb);
}
INIT_LIST_HEAD(&(pring->txq));
- if (pring->fast_lookup) {
- kfree(pring->fast_lookup);
- pring->fast_lookup = NULL;
- }
-
}
+ spin_unlock_irqrestore(phba->host->host_lock, flags);
+
/* Return any active mbox cmds */
del_timer_sync(&psli->mbox_tmo);
- if ((psli->mbox_active)) {
- pmb = psli->mbox_active;
- mp = (struct lpfc_dmabuf *) (pmb->context1);
- if (mp) {
- lpfc_mbuf_free(phba, mp->virt, mp->phys);
- kfree(mp);
- }
- mempool_free(psli->mbox_active, phba->mbox_mem_pool);
+ spin_lock_irqsave(phba->host->host_lock, flags);
+ phba->work_hba_events &= ~WORKER_MBOX_TMO;
+ if (psli->mbox_active) {
+ pmb = psli->mbox_active;
+ pmb->mb.mbxStatus = MBX_NOT_FINISHED;
+ if (pmb->mbox_cmpl) {
+ spin_unlock_irqrestore(phba->host->host_lock, flags);
+ pmb->mbox_cmpl(phba,pmb);
+ spin_lock_irqsave(phba->host->host_lock, flags);
+ }
}
- psli->sliinit.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
psli->mbox_active = NULL;
/* Return any pending mbox cmds */
while ((pmb = lpfc_mbox_get(phba)) != NULL) {
- mp = (struct lpfc_dmabuf *) (pmb->context1);
- if (mp) {
- lpfc_mbuf_free(phba, mp->virt, mp->phys);
- kfree(mp);
+ pmb->mb.mbxStatus = MBX_NOT_FINISHED;
+ if (pmb->mbox_cmpl) {
+ spin_unlock_irqrestore(phba->host->host_lock, flags);
+ pmb->mbox_cmpl(phba,pmb);
+ spin_lock_irqsave(phba->host->host_lock, flags);
}
- mempool_free(pmb, phba->mbox_mem_pool);
}
INIT_LIST_HEAD(&psli->mboxq);
- /*
- * Provided the hba is not in an error state, reset it. It is not
- * capable of IO anymore.
- */
- if (phba->hba_state != LPFC_HBA_ERROR) {
- phba->hba_state = LPFC_INIT_START;
- lpfc_sli_brdreset(phba);
- }
+ spin_unlock_irqrestore(phba->host->host_lock, flags);
return 1;
}
void
-lpfc_sli_pcimem_bcopy(uint32_t * src, uint32_t * dest, uint32_t cnt)
+lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
{
+ uint32_t *src = srcp;
+ uint32_t *dest = destp;
uint32_t ldata;
int i;
for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
- ldata = *src++;
+ ldata = *src;
ldata = le32_to_cpu(ldata);
- *dest++ = ldata;
+ *dest = ldata;
+ src++;
+ dest++;
}
}
if (mp->phys == phys) {
list_del_init(&mp->list);
pring->postbufq_cnt--;
- pci_dma_sync_single_for_cpu(phba->pcidev, mp->phys,
- LPFC_BPL_SIZE, PCI_DMA_FROMDEVICE);
return mp;
}
}
return NULL;
}
-uint32_t
-lpfc_sli_next_iotag(struct lpfc_hba * phba, struct lpfc_sli_ring * pring)
-{
- LPFC_RING_INIT_t *pringinit;
- struct lpfc_sli *psli;
- uint32_t search_start;
-
- psli = &phba->sli;
- pringinit = &psli->sliinit.ringinit[pring->ringno];
-
- if (pring->fast_lookup == NULL) {
- pringinit->iotag_ctr++;
- if (pringinit->iotag_ctr >= pringinit->iotag_max)
- pringinit->iotag_ctr = 1;
- return pringinit->iotag_ctr;
- }
-
- search_start = pringinit->iotag_ctr;
-
- do {
- pringinit->iotag_ctr++;
- if (pringinit->iotag_ctr >= pringinit->fast_iotag)
- pringinit->iotag_ctr = 1;
-
- if(*(pring->fast_lookup + pringinit->iotag_ctr) == NULL)
- return pringinit->iotag_ctr;
-
- } while (pringinit->iotag_ctr != search_start);
-
- /*
- * Outstanding I/O count for ring <ringno> is at max <fast_iotag>
- */
- lpfc_printf_log(phba,
- KERN_ERR,
- LOG_SLI,
- "%d:0318 Outstanding I/O count for ring %d is at max x%x\n",
- phba->brd_no,
- pring->ringno,
- psli->sliinit.ringinit[pring->ringno].fast_iotag);
- return (0);
-}
-
static void
lpfc_sli_abort_elsreq_cmpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
struct lpfc_iocbq * rspiocb)
/* Free the response IOCB before completing the abort
command. */
- if (!list_empty(&buf_ptr1->list)) {
-
- buf_ptr = list_entry(buf_ptr1->list.next,
- struct lpfc_dmabuf, list);
-
- list_del(&buf_ptr->list);
+ buf_ptr = NULL;
+ list_remove_head((&buf_ptr1->list), buf_ptr,
+ struct lpfc_dmabuf, list);
+ if (buf_ptr) {
lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
kfree(buf_ptr);
}
lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
kfree(buf_ptr);
}
- mempool_free( cmdiocb, phba->iocb_mem_pool);
+
+ lpfc_sli_release_iocbq(phba, cmdiocb);
return;
}
struct lpfc_sli_ring * pring,
struct lpfc_iocbq * cmdiocb)
{
- struct lpfc_sli *psli;
struct lpfc_iocbq *abtsiocbp;
IOCB_t *icmd = NULL;
IOCB_t *iabt = NULL;
- uint32_t iotag32;
-
- psli = &phba->sli;
/* issue ABTS for this IOCB based on iotag */
- if ((abtsiocbp = mempool_alloc(phba->iocb_mem_pool, GFP_ATOMIC)) == 0) {
- return (0);
- }
- memset(abtsiocbp, 0, sizeof (struct lpfc_iocbq));
- iabt = &abtsiocbp->iocb;
+ abtsiocbp = lpfc_sli_get_iocbq(phba);
+ if (abtsiocbp == NULL)
+ return 0;
+ iabt = &abtsiocbp->iocb;
icmd = &cmdiocb->iocb;
switch (icmd->ulpCommand) {
case CMD_ELS_REQUEST64_CR:
- iotag32 = icmd->un.elsreq64.bdl.ulpIoTag32;
/* Even though we abort the ELS command, the firmware may access
* the BPL or other resources before it processes our
* ABORT_MXRI64. Thus we must delay reusing the cmdiocb
abtsiocbp->iocb_cmpl = lpfc_sli_abort_elsreq_cmpl;
break;
default:
- mempool_free( abtsiocbp, phba->iocb_mem_pool);
- return (0);
+ lpfc_sli_release_iocbq(phba, abtsiocbp);
+ return 0;
}
iabt->un.amxri.abortType = ABORT_TYPE_ABTS;
- iabt->un.amxri.iotag32 = iotag32;
+ iabt->un.amxri.iotag32 = icmd->un.elsreq64.bdl.ulpIoTag32;
iabt->ulpLe = 1;
iabt->ulpClass = CLASS3;
iabt->ulpCommand = CMD_ABORT_MXRI64_CN;
if (lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0) == IOCB_ERROR) {
- mempool_free( abtsiocbp, phba->iocb_mem_pool);
- return (0);
+ lpfc_sli_release_iocbq(phba, abtsiocbp);
+ return 0;
}
- return (1);
-}
-
-int
-lpfc_sli_abort_iocb_ctx(struct lpfc_hba * phba, struct lpfc_sli_ring * pring,
- uint32_t ctx)
-{
- struct lpfc_sli *psli;
- struct lpfc_iocbq *iocb, *next_iocb;
- struct lpfc_iocbq *abtsiocbp;
- IOCB_t *icmd = NULL, *cmd = NULL;
- int errcnt;
-
- psli = &phba->sli;
- errcnt = 0;
-
- /* Error matching iocb on txq or txcmplq
- * First check the txq.
- */
- list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
- cmd = &iocb->iocb;
- if (cmd->ulpContext != ctx) {
- continue;
- }
-
- list_del_init(&iocb->list);
- pring->txq_cnt--;
- if (iocb->iocb_cmpl) {
- icmd = &iocb->iocb;
- icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
- icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
- (iocb->iocb_cmpl) (phba, iocb, iocb);
- } else {
- mempool_free( iocb, phba->iocb_mem_pool);
- }
- }
-
- /* Next check the txcmplq */
- list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
- cmd = &iocb->iocb;
- if (cmd->ulpContext != ctx) {
- continue;
- }
-
- /* issue ABTS for this IOCB based on iotag */
- if ((abtsiocbp = mempool_alloc(phba->iocb_mem_pool,
- GFP_ATOMIC)) == 0) {
- errcnt++;
- continue;
- }
- memset(abtsiocbp, 0, sizeof (struct lpfc_iocbq));
- icmd = &abtsiocbp->iocb;
-
- icmd->un.acxri.abortType = ABORT_TYPE_ABTS;
- icmd->un.acxri.abortContextTag = cmd->ulpContext;
- icmd->un.acxri.abortIoTag = cmd->ulpIoTag;
-
- icmd->ulpLe = 1;
- icmd->ulpClass = cmd->ulpClass;
- if (phba->hba_state >= LPFC_LINK_UP) {
- icmd->ulpCommand = CMD_ABORT_XRI_CN;
- } else {
- icmd->ulpCommand = CMD_CLOSE_XRI_CN;
- }
-
- if (lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0) ==
- IOCB_ERROR) {
- mempool_free( abtsiocbp, phba->iocb_mem_pool);
- errcnt++;
- continue;
- }
- /* The rsp ring completion will remove IOCB from txcmplq when
- * abort is read by HBA.
- */
- }
- return (errcnt);
+ return 1;
}
-int
-lpfc_sli_sum_iocb_host(struct lpfc_hba * phba,
- struct lpfc_sli_ring * pring)
+static int
+lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, uint16_t tgt_id,
+ uint64_t lun_id, uint32_t ctx,
+ lpfc_ctx_cmd ctx_cmd)
{
- struct lpfc_sli *psli;
- struct lpfc_iocbq *iocb, *next_iocb;
- IOCB_t *cmd = NULL;
struct lpfc_scsi_buf *lpfc_cmd;
- int sum;
+ struct scsi_cmnd *cmnd;
+ int rc = 1;
- psli = &phba->sli;
- sum = 0;
+ if (!(iocbq->iocb_flag & LPFC_IO_FCP))
+ return rc;
- /* Error matching iocb on txq or txcmplq
- * First check the txq.
- */
- list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
- cmd = &iocb->iocb;
+ lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
+ cmnd = lpfc_cmd->pCmd;
- /* Must be a FCP command */
- if ((cmd->ulpCommand != CMD_FCP_ICMND64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IWRITE64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IREAD64_CR)) {
- continue;
- }
+ if (cmnd == NULL)
+ return rc;
- /* context1 MUST be a struct lpfc_scsi_buf */
- lpfc_cmd = (struct lpfc_scsi_buf *) (iocb->context1);
- if (lpfc_cmd == 0) {
- continue;
- }
- sum++;
+ switch (ctx_cmd) {
+ case LPFC_CTX_LUN:
+ if ((cmnd->device->id == tgt_id) &&
+ (cmnd->device->lun == lun_id))
+ rc = 0;
+ break;
+ case LPFC_CTX_TGT:
+ if (cmnd->device->id == tgt_id)
+ rc = 0;
+ break;
+ case LPFC_CTX_CTX:
+ if (iocbq->iocb.ulpContext == ctx)
+ rc = 0;
+ break;
+ case LPFC_CTX_HOST:
+ rc = 0;
+ break;
+ default:
+ printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
+ __FUNCTION__, ctx_cmd);
+ break;
}
- /* Next check the txcmplq */
- list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
- cmd = &iocb->iocb;
-
- /* Must be a FCP command */
- if ((cmd->ulpCommand != CMD_FCP_ICMND64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IWRITE64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IREAD64_CR)) {
- continue;
- }
-
- /* context1 MUST be a struct lpfc_scsi_buf */
- lpfc_cmd = (struct lpfc_scsi_buf *) (iocb->context1);
- if (lpfc_cmd == 0) {
- continue;
- }
- sum++;
- }
- return (sum);
+ return rc;
}
int
-lpfc_sli_abort_iocb_host(struct lpfc_hba * phba,
- struct lpfc_sli_ring * pring, int flag)
+lpfc_sli_sum_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
+ uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd ctx_cmd)
{
- struct lpfc_sli *psli;
- struct lpfc_iocbq *iocb, *next_iocb;
- struct lpfc_iocbq *abtsiocbp;
- IOCB_t *icmd = NULL, *cmd = NULL;
- struct lpfc_scsi_buf *lpfc_cmd;
- int errcnt;
+ struct lpfc_iocbq *iocbq;
+ int sum, i;
- psli = &phba->sli;
- errcnt = 0;
-
- /* Error matching iocb on txq or txcmplq
- * First check the txq.
- */
- if(flag & LPFC_ABORT_TXQ) {
- list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
- cmd = &iocb->iocb;
-
- /* Must be a FCP command */
- if ((cmd->ulpCommand != CMD_FCP_ICMND64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IWRITE64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IREAD64_CR)) {
- continue;
- }
+ for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
+ iocbq = phba->sli.iocbq_lookup[i];
- /* context1 MUST be a struct lpfc_scsi_buf */
- lpfc_cmd = (struct lpfc_scsi_buf *) (iocb->context1);
- if (lpfc_cmd == 0) {
- continue;
- }
-
- list_del_init(&iocb->list);
- pring->txq_cnt--;
- if (iocb->iocb_cmpl) {
- icmd = &iocb->iocb;
- icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
- icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
- (iocb->iocb_cmpl) (phba, iocb, iocb);
- } else {
- mempool_free( iocb, phba->iocb_mem_pool);
- }
- }
+ if (lpfc_sli_validate_fcp_iocb (iocbq, tgt_id, lun_id,
+ 0, ctx_cmd) == 0)
+ sum++;
}
- if(flag & LPFC_ABORT_TXCMPLQ) {
- /* Next check the txcmplq */
- list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
- list) {
- cmd = &iocb->iocb;
-
- /* Must be a FCP command */
- if ((cmd->ulpCommand != CMD_FCP_ICMND64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IWRITE64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IREAD64_CR)) {
- continue;
- }
-
- /* context1 MUST be a struct lpfc_scsi_buf */
- lpfc_cmd = (struct lpfc_scsi_buf *) (iocb->context1);
- if (lpfc_cmd == 0) {
- continue;
- }
-
- /* issue ABTS for this IOCB based on iotag */
- if ((abtsiocbp = mempool_alloc(phba->iocb_mem_pool,
- GFP_ATOMIC)) == 0) {
- errcnt++;
- continue;
- }
- memset(abtsiocbp, 0, sizeof (struct lpfc_iocbq));
- icmd = &abtsiocbp->iocb;
-
- icmd->un.acxri.abortType = ABORT_TYPE_ABTS;
- icmd->un.acxri.abortContextTag = cmd->ulpContext;
- icmd->un.acxri.abortIoTag = cmd->ulpIoTag;
-
- icmd->ulpLe = 1;
- icmd->ulpClass = cmd->ulpClass;
- if (phba->hba_state >= LPFC_LINK_UP) {
- icmd->ulpCommand = CMD_ABORT_XRI_CN;
- } else {
- icmd->ulpCommand = CMD_CLOSE_XRI_CN;
- }
+ return sum;
+}
- if (lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0) ==
- IOCB_ERROR) {
- mempool_free( abtsiocbp, phba->iocb_mem_pool);
- errcnt++;
- continue;
- }
- /* The rsp ring completion will remove IOCB from
- * tacmplq when abort is read by HBA.
- */
- }
- }
- return (errcnt);
+void
+lpfc_sli_abort_fcp_cmpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
+ struct lpfc_iocbq * rspiocb)
+{
+ spin_lock_irq(phba->host->host_lock);
+ lpfc_sli_release_iocbq(phba, cmdiocb);
+ spin_unlock_irq(phba->host->host_lock);
+ return;
}
int
-lpfc_sli_sum_iocb_lun(struct lpfc_hba * phba,
- struct lpfc_sli_ring * pring,
- uint16_t scsi_target, uint64_t scsi_lun)
+lpfc_sli_abort_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
+ uint16_t tgt_id, uint64_t lun_id, uint32_t ctx,
+ lpfc_ctx_cmd abort_cmd)
{
- struct lpfc_sli *psli;
- struct lpfc_iocbq *iocb, *next_iocb;
+ struct lpfc_iocbq *iocbq;
+ struct lpfc_iocbq *abtsiocb;
IOCB_t *cmd = NULL;
- struct lpfc_scsi_buf *lpfc_cmd;
- int sum;
-
- psli = &phba->sli;
- sum = 0;
+ int errcnt = 0, ret_val = 0;
+ int i;
- /* Error matching iocb on txq or txcmplq
- * First check the txq.
- */
- list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
- cmd = &iocb->iocb;
+ for (i = 1; i <= phba->sli.last_iotag; i++) {
+ iocbq = phba->sli.iocbq_lookup[i];
- /* Must be a FCP command */
- if ((cmd->ulpCommand != CMD_FCP_ICMND64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IWRITE64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IREAD64_CR)) {
+ if (lpfc_sli_validate_fcp_iocb (iocbq, tgt_id, lun_id,
+ 0, abort_cmd) != 0)
continue;
- }
- /* context1 MUST be a struct lpfc_scsi_buf */
- lpfc_cmd = (struct lpfc_scsi_buf *) (iocb->context1);
- if ((lpfc_cmd == 0) ||
- (lpfc_cmd->pCmd->device->id != scsi_target) ||
- (lpfc_cmd->pCmd->device->lun != scsi_lun)) {
+ /* issue ABTS for this IOCB based on iotag */
+ abtsiocb = lpfc_sli_get_iocbq(phba);
+ if (abtsiocb == NULL) {
+ errcnt++;
continue;
}
- sum++;
- }
- /* Next check the txcmplq */
- list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
- cmd = &iocb->iocb;
+ cmd = &iocbq->iocb;
+ abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
+ abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
+ abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
+ abtsiocb->iocb.ulpLe = 1;
+ abtsiocb->iocb.ulpClass = cmd->ulpClass;
- /* Must be a FCP command */
- if ((cmd->ulpCommand != CMD_FCP_ICMND64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IWRITE64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IREAD64_CR)) {
- continue;
- }
+ if (phba->hba_state >= LPFC_LINK_UP)
+ abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
+ else
+ abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
- /* context1 MUST be a struct lpfc_scsi_buf */
- lpfc_cmd = (struct lpfc_scsi_buf *) (iocb->context1);
- if ((lpfc_cmd == 0) ||
- (lpfc_cmd->pCmd->device->id != scsi_target) ||
- (lpfc_cmd->pCmd->device->lun != scsi_lun)) {
+ /* Setup callback routine and issue the command. */
+ abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
+ ret_val = lpfc_sli_issue_iocb(phba, pring, abtsiocb, 0);
+ if (ret_val == IOCB_ERROR) {
+ lpfc_sli_release_iocbq(phba, abtsiocb);
+ errcnt++;
continue;
}
-
- sum++;
}
- return (sum);
-}
-
-int
-lpfc_sli_abort_iocb_lun(struct lpfc_hba * phba,
- struct lpfc_sli_ring * pring,
- uint16_t scsi_target, uint64_t scsi_lun, int flag)
-{
- struct lpfc_sli *psli;
- struct lpfc_iocbq *iocb, *next_iocb;
- struct lpfc_iocbq *abtsiocbp;
- IOCB_t *icmd = NULL, *cmd = NULL;
- struct lpfc_scsi_buf *lpfc_cmd;
- int errcnt;
-
- psli = &phba->sli;
- errcnt = 0;
-
- /* Error matching iocb on txq or txcmplq
- * First check the txq.
- */
- if(flag & LPFC_ABORT_TXQ) {
- list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
- cmd = &iocb->iocb;
-
- /* Must be a FCP command */
- if ((cmd->ulpCommand != CMD_FCP_ICMND64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IWRITE64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IREAD64_CR)) {
- continue;
- }
-
- /* context1 MUST be a struct lpfc_scsi_buf */
- lpfc_cmd = (struct lpfc_scsi_buf *) (iocb->context1);
- if ((lpfc_cmd == 0) ||
- (lpfc_cmd->pCmd->device->id != scsi_target) ||
- (lpfc_cmd->pCmd->device->lun != scsi_lun)) {
- continue;
- }
- list_del_init(&iocb->list);
- pring->txq_cnt--;
- if (iocb->iocb_cmpl) {
- icmd = &iocb->iocb;
- icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
- icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
- (iocb->iocb_cmpl) (phba, iocb, iocb);
- } else {
- mempool_free( iocb, phba->iocb_mem_pool);
- }
- }
- }
-
- if(flag & LPFC_ABORT_TXCMPLQ) {
- /* Next check the txcmplq */
- list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
- list) {
- cmd = &iocb->iocb;
-
- /* Must be a FCP command */
- if ((cmd->ulpCommand != CMD_FCP_ICMND64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IWRITE64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IREAD64_CR)) {
- continue;
- }
-
- /* context1 MUST be a struct lpfc_scsi_buf */
- lpfc_cmd = (struct lpfc_scsi_buf *) (iocb->context1);
- if ((lpfc_cmd == 0) ||
- (lpfc_cmd->pCmd->device->id != scsi_target) ||
- (lpfc_cmd->pCmd->device->lun != scsi_lun)) {
- continue;
- }
-
- /* issue ABTS for this IOCB based on iotag */
- if ((abtsiocbp = mempool_alloc(phba->iocb_mem_pool,
- GFP_ATOMIC)) == 0) {
- errcnt++;
- continue;
- }
- memset(abtsiocbp, 0, sizeof (struct lpfc_iocbq));
- icmd = &abtsiocbp->iocb;
-
- icmd->un.acxri.abortType = ABORT_TYPE_ABTS;
- icmd->un.acxri.abortContextTag = cmd->ulpContext;
- icmd->un.acxri.abortIoTag = cmd->ulpIoTag;
-
- icmd->ulpLe = 1;
- icmd->ulpClass = cmd->ulpClass;
- if (phba->hba_state >= LPFC_LINK_UP) {
- icmd->ulpCommand = CMD_ABORT_XRI_CN;
- } else {
- icmd->ulpCommand = CMD_CLOSE_XRI_CN;
- }
-
- if (lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0) ==
- IOCB_ERROR) {
- mempool_free( abtsiocbp, phba->iocb_mem_pool);
- errcnt++;
- continue;
- }
- /* The rsp ring completion will remove IOCB from
- * tacmplq when abort is read by HBA.
- */
- }
- }
- return (errcnt);
+ return errcnt;
}
-int
-lpfc_sli_abort_iocb_tgt(struct lpfc_hba * phba,
- struct lpfc_sli_ring * pring,
- uint16_t scsi_target, int flag)
+static void
+lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
+ struct lpfc_iocbq *cmdiocbq,
+ struct lpfc_iocbq *rspiocbq)
{
- struct lpfc_sli *psli;
- struct lpfc_iocbq *iocb, *next_iocb;
- struct lpfc_iocbq *abtsiocbp;
- IOCB_t *icmd = NULL, *cmd = NULL;
- struct lpfc_scsi_buf *lpfc_cmd;
- int errcnt;
-
- psli = &phba->sli;
- errcnt = 0;
-
- /* Error matching iocb on txq or txcmplq
- * First check the txq.
- */
- if(flag & LPFC_ABORT_TXQ) {
- list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
- cmd = &iocb->iocb;
-
- /* Must be a FCP command */
- if ((cmd->ulpCommand != CMD_FCP_ICMND64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IWRITE64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IREAD64_CR)) {
- continue;
- }
-
- /* context1 MUST be a struct lpfc_scsi_buf */
- lpfc_cmd = (struct lpfc_scsi_buf *) (iocb->context1);
- if ((lpfc_cmd == 0)
- || (lpfc_cmd->pCmd->device->id != scsi_target)) {
- continue;
- }
-
- list_del_init(&iocb->list);
- pring->txq_cnt--;
- if (iocb->iocb_cmpl) {
- icmd = &iocb->iocb;
- icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
- icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
- (iocb->iocb_cmpl) (phba, iocb, iocb);
- } else {
- mempool_free( iocb, phba->iocb_mem_pool);
- }
- }
- }
-
- if(flag & LPFC_ABORT_TXCMPLQ) {
- /* Next check the txcmplq */
- list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
- list) {
- cmd = &iocb->iocb;
-
- /* Must be a FCP command */
- if ((cmd->ulpCommand != CMD_FCP_ICMND64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IWRITE64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IREAD64_CR)) {
- continue;
- }
-
- /* context1 MUST be a struct lpfc_scsi_buf */
- lpfc_cmd = (struct lpfc_scsi_buf *) (iocb->context1);
- if ((lpfc_cmd == 0)
- || (lpfc_cmd->pCmd->device->id != scsi_target)) {
- continue;
- }
-
- /* issue ABTS for this IOCB based on iotag */
- if ((abtsiocbp = mempool_alloc(phba->iocb_mem_pool,
- GFP_ATOMIC)) == 0) {
- errcnt++;
- continue;
- }
- memset(abtsiocbp, 0, sizeof (struct lpfc_iocbq));
- icmd = &abtsiocbp->iocb;
-
- icmd->un.acxri.abortType = ABORT_TYPE_ABTS;
- icmd->un.acxri.abortContextTag = cmd->ulpContext;
- icmd->un.acxri.abortIoTag = cmd->ulpIoTag;
-
- icmd->ulpLe = 1;
- icmd->ulpClass = cmd->ulpClass;
- if (phba->hba_state >= LPFC_LINK_UP) {
- icmd->ulpCommand = CMD_ABORT_XRI_CN;
- } else {
- icmd->ulpCommand = CMD_CLOSE_XRI_CN;
- }
-
- if (lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0) ==
- IOCB_ERROR) {
- mempool_free( abtsiocbp, phba->iocb_mem_pool);
- errcnt++;
- continue;
- }
- /* The rsp ring completion will remove IOCB from
- * txcmplq when abort is read by HBA.
- */
- }
- }
- return (errcnt);
-}
-
-
+ wait_queue_head_t *pdone_q;
+ unsigned long iflags;
-void
-lpfc_sli_wake_iocb_high_priority(struct lpfc_hba * phba,
- struct lpfc_iocbq * queue1,
- struct lpfc_iocbq * queue2)
-{
- if (queue1->context2 && queue2)
- memcpy(queue1->context2, queue2, sizeof (struct lpfc_iocbq));
+ spin_lock_irqsave(phba->host->host_lock, iflags);
+ cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
+ if (cmdiocbq->context2 && rspiocbq)
+ memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
+ &rspiocbq->iocb, sizeof(IOCB_t));
- /* The waiter is looking for LPFC_IO_HIPRI bit to be set
- as a signal to wake up */
- queue1->iocb_flag |= LPFC_IO_HIPRI;
+ pdone_q = cmdiocbq->context_un.wait_queue;
+ spin_unlock_irqrestore(phba->host->host_lock, iflags);
+ if (pdone_q)
+ wake_up(pdone_q);
return;
}
+/*
+ * Issue the caller's iocb and wait for its completion, but no longer than the
+ * caller's timeout. Note that iocb_flags is cleared before the
+ * lpfc_sli_issue_call since the wake routine sets a unique value and by
+ * definition this is a wait function.
+ */
int
-lpfc_sli_issue_iocb_wait_high_priority(struct lpfc_hba * phba,
- struct lpfc_sli_ring * pring,
- struct lpfc_iocbq * piocb,
- uint32_t flag,
- struct lpfc_iocbq * prspiocbq,
- uint32_t timeout)
+lpfc_sli_issue_iocb_wait(struct lpfc_hba * phba,
+ struct lpfc_sli_ring * pring,
+ struct lpfc_iocbq * piocb,
+ struct lpfc_iocbq * prspiocbq,
+ uint32_t timeout)
{
- int j, delay_time, retval = IOCB_ERROR;
-
- /* The caller must left context1 empty. */
- if (piocb->context_un.hipri_wait_queue != 0) {
- return IOCB_ERROR;
- }
+ DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
+ long timeleft, timeout_req = 0;
+ int retval = IOCB_SUCCESS;
+ uint32_t creg_val;
/*
- * If the caller has provided a response iocbq buffer, context2 must
- * be NULL or its an error.
+ * If the caller has provided a response iocbq buffer, then context2
+ * is NULL or its an error.
*/
- if (prspiocbq && piocb->context2) {
- return IOCB_ERROR;
+ if (prspiocbq) {
+ if (piocb->context2)
+ return IOCB_ERROR;
+ piocb->context2 = prspiocbq;
}
- piocb->context2 = prspiocbq;
+ piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
+ piocb->context_un.wait_queue = &done_q;
+ piocb->iocb_flag &= ~LPFC_IO_WAKE;
- /* Setup callback routine and issue the command. */
- piocb->iocb_cmpl = lpfc_sli_wake_iocb_high_priority;
- retval = lpfc_sli_issue_iocb(phba, pring, piocb,
- flag | SLI_IOCB_HIGH_PRIORITY);
- if (retval != IOCB_SUCCESS) {
- piocb->context2 = NULL;
- return IOCB_ERROR;
+ if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
+ creg_val = readl(phba->HCregaddr);
+ creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
+ writel(creg_val, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
}
- /*
- * This high-priority iocb was sent out-of-band. Poll for its
- * completion rather than wait for a signal. Note that the host_lock
- * is held by the midlayer and must be released here to allow the
- * interrupt handlers to complete the IO and signal this routine via
- * the iocb_flag.
- * Also, the delay_time is computed to be one second longer than
- * the scsi command timeout to give the FW time to abort on
- * timeout rather than the driver just giving up. Typically,
- * the midlayer does not specify a time for this command so the
- * driver is free to enforce its own timeout.
- */
+ retval = lpfc_sli_issue_iocb(phba, pring, piocb, 0);
+ if (retval == IOCB_SUCCESS) {
+ timeout_req = timeout * HZ;
+ spin_unlock_irq(phba->host->host_lock);
+ timeleft = wait_event_timeout(done_q,
+ piocb->iocb_flag & LPFC_IO_WAKE,
+ timeout_req);
+ spin_lock_irq(phba->host->host_lock);
- delay_time = ((timeout + 1) * 1000) >> 6;
- retval = IOCB_ERROR;
- spin_unlock_irq(phba->host->host_lock);
- for (j = 0; j < 64; j++) {
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,6)
- mdelay(delay_time);
-#else
- msleep(delay_time);
-#endif
- if (piocb->iocb_flag & LPFC_IO_HIPRI) {
- piocb->iocb_flag &= ~LPFC_IO_HIPRI;
- retval = IOCB_SUCCESS;
- break;
+ if (timeleft == 0) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "%d:0338 IOCB wait timeout error - no "
+ "wake response Data x%x\n",
+ phba->brd_no, timeout);
+ retval = IOCB_TIMEDOUT;
+ } else if (!(piocb->iocb_flag & LPFC_IO_WAKE)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "%d:0330 IOCB wake NOT set, "
+ "Data x%x x%lx\n", phba->brd_no,
+ timeout, (timeleft / jiffies));
+ retval = IOCB_TIMEDOUT;
+ } else {
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "%d:0331 IOCB wake signaled\n",
+ phba->brd_no);
}
+ } else {
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "%d:0332 IOCB wait issue failed, Data x%x\n",
+ phba->brd_no, retval);
+ retval = IOCB_ERROR;
}
- spin_lock_irq(phba->host->host_lock);
- piocb->context2 = NULL;
- return retval;
-}
-static void
-lpfc_sli_wake_mbox_wait(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
-{
- wait_queue_head_t *pdone_q;
+ if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
+ creg_val = readl(phba->HCregaddr);
+ creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
+ writel(creg_val, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+ }
- /*
- * If pdone_q is empty, the driver thread gave up waiting and
- * continued running.
- */
- pdone_q = (wait_queue_head_t *) pmboxq->context1;
- if (pdone_q)
- wake_up_interruptible(pdone_q);
- return;
+ if (prspiocbq)
+ piocb->context2 = NULL;
+
+ piocb->context_un.wait_queue = NULL;
+ piocb->iocb_cmpl = NULL;
+ return retval;
}
int
lpfc_sli_issue_mbox_wait(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq,
uint32_t timeout)
{
- DECLARE_WAIT_QUEUE_HEAD(done_q);
+ DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
DECLARE_WAITQUEUE(wq_entry, current);
uint32_t timeleft = 0;
int retval;
add_wait_queue(&done_q, &wq_entry);
/* now issue the command */
- spin_lock_irq(phba->host->host_lock);
retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
- spin_unlock_irq(phba->host->host_lock);
if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
timeleft = schedule_timeout(timeout * HZ);
pmboxq->context1 = NULL;
/* if schedule_timeout returns 0, we timed out and were not
woken up */
- if (timeleft == 0) {
+ if ((timeleft == 0) || signal_pending(current))
retval = MBX_TIMEOUT;
- } else {
+ else
retval = MBX_SUCCESS;
- }
}
return retval;
}
-static void
-lpfc_sli_wake_iocb_wait(struct lpfc_hba * phba,
- struct lpfc_iocbq * queue1, struct lpfc_iocbq * queue2)
+int
+lpfc_sli_flush_mbox_queue(struct lpfc_hba * phba)
{
- wait_queue_head_t *pdone_q;
+ int i = 0;
- queue1->iocb_flag |= LPFC_IO_WAIT;
- if (queue1->context2 && queue2)
- memcpy(queue1->context2, queue2, sizeof (struct lpfc_iocbq));
+ while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE && !phba->stopped) {
+ if (i++ > LPFC_MBOX_TMO * 1000)
+ return 1;
- /*
- * If pdone_q is empty, the waiter gave up and returned and this
- * call has nothing to do.
- */
- pdone_q = queue1->context_un.hipri_wait_queue;
- if (pdone_q) {
- wake_up(pdone_q);
+ if (lpfc_sli_handle_mb_event(phba) == 0)
+ i = 0;
+
+ msleep(1);
}
- return;
+ return (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) ? 1 : 0;
}
-int
-lpfc_sli_issue_iocb_wait(struct lpfc_hba * phba,
- struct lpfc_sli_ring * pring,
- struct lpfc_iocbq * piocb,
- struct lpfc_iocbq * prspiocbq, uint32_t timeout)
+irqreturn_t
+lpfc_intr_handler(int irq, void *dev_id)
{
- DECLARE_WAIT_QUEUE_HEAD(done_q);
- DECLARE_WAITQUEUE(wq_entry, current);
- uint32_t timeleft = 0;
- int retval;
+ struct lpfc_hba *phba;
+ uint32_t ha_copy;
+ uint32_t work_ha_copy;
+ unsigned long status;
+ int i;
+ uint32_t control;
+
+ /*
+ * Get the driver's phba structure from the dev_id and
+ * assume the HBA is not interrupting.
+ */
+ phba = (struct lpfc_hba *) dev_id;
- /* The caller must leave context1 empty for the driver. */
- if (piocb->context_un.hipri_wait_queue != 0)
- return (IOCB_ERROR);
+ if (unlikely(!phba))
+ return IRQ_NONE;
- /* If the caller has provided a response iocbq buffer, then context2
- * is NULL or its an error.
+ phba->sli.slistat.sli_intr++;
+
+ /*
+ * Call the HBA to see if it is interrupting. If not, don't claim
+ * the interrupt
*/
- if (prspiocbq) {
- if (piocb->context2)
- return (IOCB_ERROR);
- piocb->context2 = prspiocbq;
- }
- /* setup wake call as IOCB callback */
- piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
- /* setup context field to pass wait_queue pointer to wake function */
- piocb->context_un.hipri_wait_queue = &done_q;
+ /* Ignore all interrupts during initialization. */
+ if (unlikely(phba->hba_state < LPFC_LINK_DOWN))
+ return IRQ_NONE;
- /* start to sleep before we wait, to avoid races */
- set_current_state(TASK_UNINTERRUPTIBLE);
- add_wait_queue(&done_q, &wq_entry);
+ /*
+ * Read host attention register to determine interrupt source
+ * Clear Attention Sources, except Error Attention (to
+ * preserve status) and Link Attention
+ */
+ spin_lock(phba->host->host_lock);
+ ha_copy = readl(phba->HAregaddr);
+ writel((ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
+ readl(phba->HAregaddr); /* flush */
+ spin_unlock(phba->host->host_lock);
- /* now issue the command */
- retval = lpfc_sli_issue_iocb(phba, pring, piocb, 0);
- if (retval == IOCB_SUCCESS) {
- /* Give up thread time and wait for the iocb to complete or for
- * the alloted time to expire.
- */
- timeleft = schedule_timeout(timeout * HZ);
+ if (unlikely(!ha_copy))
+ return IRQ_NONE;
- piocb->context_un.hipri_wait_queue = NULL;
- piocb->iocb_cmpl = NULL;
- if (piocb->context2 == prspiocbq)
- piocb->context2 = NULL;
+ work_ha_copy = ha_copy & phba->work_ha_mask;
- /*
- * Catch the error cases. A timeleft of zero is an error since
- * the iocb should have completed. The iocb_flag not have value
- * LPFC_IO_WAIT is also an error since the wakeup callback sets
- * this flag when it runs. Handle each.
- */
- if (timeleft == 0) {
- printk(KERN_WARNING "lpfc driver detected iocb "
- "Timeout!\n");
- retval = IOCB_TIMEDOUT;
- } else if (!(piocb->iocb_flag & LPFC_IO_WAIT)) {
- printk(KERN_WARNING "lpfc driver detected iocb "
- "flag = 0x%X\n", piocb->iocb_flag);
- retval = IOCB_TIMEDOUT;
+ if (unlikely(work_ha_copy)) {
+ if (work_ha_copy & HA_LATT) {
+ if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
+ /*
+ * Turn off Link Attention interrupts
+ * until CLEAR_LA done
+ */
+ spin_lock(phba->host->host_lock);
+ phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
+ control = readl(phba->HCregaddr);
+ control &= ~HC_LAINT_ENA;
+ writel(control, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+ spin_unlock(phba->host->host_lock);
+ }
+ else
+ work_ha_copy &= ~HA_LATT;
+ }
+
+ if (work_ha_copy & ~(HA_ERATT|HA_MBATT|HA_LATT)) {
+ for (i = 0; i < phba->sli.num_rings; i++) {
+ if (work_ha_copy & (HA_RXATT << (4*i))) {
+ /*
+ * Turn off Slow Rings interrupts
+ */
+ spin_lock(phba->host->host_lock);
+ control = readl(phba->HCregaddr);
+ control &= ~(HC_R0INT_ENA << i);
+ writel(control, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+ spin_unlock(phba->host->host_lock);
+ }
+ }
}
- }
- remove_wait_queue(&done_q, &wq_entry);
- set_current_state(TASK_RUNNING);
- piocb->context2 = NULL;
- return retval;
-}
+ if (work_ha_copy & HA_ERATT) {
+ phba->hba_state = LPFC_HBA_ERROR;
+ /*
+ * There was a link/board error. Read the
+ * status register to retrieve the error event
+ * and process it.
+ */
+ phba->sli.slistat.err_attn_event++;
+ /* Save status info */
+ phba->work_hs = readl(phba->HSregaddr);
+ phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
+ phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
-irqreturn_t
-lpfc_intr_handler(int irq, void *dev_id, struct pt_regs * regs)
-{
- struct lpfc_hba *phba;
- int intr_status;
+ /* Clear Chip error bit */
+ writel(HA_ERATT, phba->HAregaddr);
+ readl(phba->HAregaddr); /* flush */
+ phba->stopped = 1;
+ }
+
+ spin_lock(phba->host->host_lock);
+ phba->work_ha |= work_ha_copy;
+ if (phba->work_wait)
+ wake_up(phba->work_wait);
+ spin_unlock(phba->host->host_lock);
+ }
+
+ ha_copy &= ~(phba->work_ha_mask);
/*
- * Get the driver's phba structure from the dev_id and
- * assume the HBA is not interrupting.
+ * Process all events on FCP ring. Take the optimized path for
+ * FCP IO. Any other IO is slow path and is handled by
+ * the worker thread.
*/
- phba = (struct lpfc_hba *) dev_id;
-
- if (phba) {
- /* Call SLI to handle the interrupt event. */
- intr_status = lpfc_sli_intr(phba);
- if (intr_status == 0)
- return IRQ_HANDLED;
+ status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
+ status >>= (4*LPFC_FCP_RING);
+ if (status & HA_RXATT)
+ lpfc_sli_handle_fast_ring_event(phba,
+ &phba->sli.ring[LPFC_FCP_RING],
+ status);
+
+ if (phba->cfg_multi_ring_support == 2) {
+ /*
+ * Process all events on extra ring. Take the optimized path
+ * for extra ring IO. Any other IO is slow path and is handled
+ * by the worker thread.
+ */
+ status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
+ status >>= (4*LPFC_EXTRA_RING);
+ if (status & HA_RXATT) {
+ lpfc_sli_handle_fast_ring_event(phba,
+ &phba->sli.ring[LPFC_EXTRA_RING],
+ status);
+ }
}
-
- return IRQ_NONE;
+ return IRQ_HANDLED;
} /* lpfc_intr_handler */
git://git.onelab.eu / linux-2.6.git / blobdiff