--- /dev/null
+/*******************************************************************
+ * 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. *
+ * www.emulex.com *
+ * *
+ * This program is free software; you can redistribute it and/or *
+ * modify it under the terms of the GNU General Public License *
+ * as published by the Free Software Foundation; either version 2 *
+ * 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. *
+ *******************************************************************/
+
+/*
+ * $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 <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.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, \
+ LOG_MBOX | LOG_SLI, \
+ "%d:0311 Mailbox command x%x cannot issue " \
+ "Data: x%x x%x x%x\n", \
+ phba->brd_no, \
+ mb->mbxCommand, \
+ phba->hba_state, \
+ psli->sliinit.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,
+ 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_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
+};
+
+
+static int
+lpfc_sli_ring_map(struct lpfc_hba * phba)
+{
+ struct lpfc_sli *psli;
+ LPFC_MBOXQ_t *pmb;
+ MAILBOX_t *pmbox;
+ int i;
+
+ psli = &phba->sli;
+
+ /* 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;
+ }
+ 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 */
+ 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> */
+ lpfc_printf_log(phba,
+ KERN_ERR,
+ LOG_INIT,
+ "%d:0446 Adapter failed to init, "
+ "mbxCmd x%x CFG_RING, mbxStatus x%x, "
+ "ring %d\n",
+ phba->brd_no,
+ pmbox->mbxCommand,
+ 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;
+}
+
+static int
+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 (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);
+}
+
+static struct lpfc_iocbq *
+lpfc_sli_ringtx_get(struct lpfc_hba * phba, struct lpfc_sli_ring * pring)
+{
+ 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) {
+ /* 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;
+ IOCB_t *iocb = NULL;
+
+ 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)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "%d:0315 Ring %d issue: portCmdGet %d "
+ "is bigger then cmd ring %d\n",
+ phba->brd_no, pring->ringno,
+ pring->local_getidx, max_cmd_idx);
+
+ phba->hba_state = LPFC_HBA_ERROR;
+ lpfc_handle_eratt(phba, HS_FFER3);
+
+ return NULL;
+ }
+
+ if (pring->local_getidx == pring->next_cmdidx)
+ return NULL;
+ }
+
+ iocb = IOCB_ENTRY(pring->cmdringaddr, pring->cmdidx);
+
+ return iocb;
+}
+
+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
+ */
+ nextiocb->iocb.ulpIoTag =
+ lpfc_sli_next_iotag(phba, &psli->ring[psli->fcp_ring]);
+
+ /*
+ * Issue iocb command to adapter
+ */
+ lpfc_sli_pcimem_bcopy((uint32_t *)&nextiocb->iocb,
+ (uint32_t *)(iocb), sizeof (IOCB_t));
+ wmb();
+ psli->slistat.iocbCmd[ringno]++;
+
+ /*
+ * If there is no completion routine to call, we can release the
+ * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
+ * that have no rsp ring completion, iocb_cmpl MUST be NULL.
+ */
+ if (nextiocb->iocb_cmpl)
+ lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
+ else
+ mempool_free(nextiocb, phba->iocb_mem_pool);
+
+ /*
+ * 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;
+}
+
+static void
+lpfc_sli_update_full_ring(struct lpfc_hba * phba,
+ struct lpfc_sli_ring *pring)
+{
+ int ringno = pring->ringno;
+
+ pring->flag |= LPFC_CALL_RING_AVAILABLE;
+
+ wmb();
+
+ /*
+ * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
+ * The HBA will tell us when an IOCB entry is available.
+ */
+ writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
+ readl(phba->CAregaddr); /* flush */
+
+ phba->sli.slistat.iocbCmdFull[ringno]++;
+}
+
+static void
+lpfc_sli_update_ring(struct lpfc_hba * phba,
+ struct lpfc_sli_ring *pring)
+{
+ int ringno = pring->ringno;
+
+ /*
+ * Tell the HBA that there is work to do in this ring.
+ */
+ wmb();
+ writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
+ readl(phba->CAregaddr); /* flush */
+}
+
+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;
+
+ /*
+ * Check to see if:
+ * (a) there is anything on the txq to send
+ * (b) link is up
+ * (c) link attention events can be processed (fcp ring only)
+ * (d) IOCB processing is not blocked by the outstanding mbox command.
+ */
+ if (pring->txq_cnt &&
+ (phba->hba_state > LPFC_LINK_DOWN) &&
+ (pring->ringno != psli->fcp_ring ||
+ psli->sliinit.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
+ lpfc_sli_update_full_ring(phba, pring);
+ }
+
+ return;
+}
+
+/* lpfc_sli_turn_on_ring is only called by lpfc_sli_handle_mb_event below */
+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]);
+
+ /* 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;
+ /*
+ * Force update of the local copy of cmdGetInx
+ */
+ pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
+ lpfc_sli_resume_iocb(phba, pring);
+ }
+ }
+}
+
+static int
+lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
+{
+ uint8_t ret;
+
+ switch (mbxCommand) {
+ case MBX_LOAD_SM:
+ case MBX_READ_NV:
+ case MBX_WRITE_NV:
+ case MBX_RUN_BIU_DIAG:
+ case MBX_INIT_LINK:
+ case MBX_DOWN_LINK:
+ case MBX_CONFIG_LINK:
+ case MBX_CONFIG_RING:
+ case MBX_RESET_RING:
+ case MBX_READ_CONFIG:
+ case MBX_READ_RCONFIG:
+ case MBX_READ_SPARM:
+ case MBX_READ_STATUS:
+ case MBX_READ_RPI:
+ case MBX_READ_XRI:
+ case MBX_READ_REV:
+ case MBX_READ_LNK_STAT:
+ case MBX_REG_LOGIN:
+ case MBX_UNREG_LOGIN:
+ case MBX_READ_LA:
+ case MBX_CLEAR_LA:
+ case MBX_DUMP_MEMORY:
+ case MBX_DUMP_CONTEXT:
+ case MBX_RUN_DIAGS:
+ case MBX_RESTART:
+ case MBX_UPDATE_CFG:
+ case MBX_DOWN_LOAD:
+ case MBX_DEL_LD_ENTRY:
+ case MBX_RUN_PROGRAM:
+ case MBX_SET_MASK:
+ case MBX_SET_SLIM:
+ case MBX_UNREG_D_ID:
+ case MBX_CONFIG_FARP:
+ case MBX_LOAD_AREA:
+ case MBX_RUN_BIU_DIAG64:
+ case MBX_CONFIG_PORT:
+ case MBX_READ_SPARM64:
+ case MBX_READ_RPI64:
+ case MBX_REG_LOGIN64:
+ case MBX_READ_LA64:
+ case MBX_FLASH_WR_ULA:
+ case MBX_SET_DEBUG:
+ case MBX_LOAD_EXP_ROM:
+ ret = mbxCommand;
+ break;
+ default:
+ ret = MBX_SHUTDOWN;
+ break;
+ }
+ return (ret);
+}
+static 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;
+ 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)) {
+ return (1);
+ }
+
+ spin_lock_irqsave(phba->host->host_lock, iflag);
+
+ psli->slistat.mboxEvent++;
+
+ /* Get a Mailbox buffer to setup mailbox commands for callback */
+ if ((pmb = psli->mbox_active)) {
+ pmbox = &pmb->mb;
+ mbox = (MAILBOX_t *) psli->MBhostaddr;
+
+ /* First check out the status word */
+ lpfc_sli_pcimem_bcopy((uint32_t *) mbox, (uint32_t *) 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));
+ if (pmbox->mbxOwner == OWN_HOST)
+ goto mbout;
+ }
+ /* Stray Mailbox Interrupt, mbxCommand <cmd> mbxStatus
+ <status> */
+ lpfc_printf_log(phba,
+ KERN_ERR,
+ LOG_MBOX | LOG_SLI,
+ "%d:0304 Stray Mailbox Interrupt "
+ "mbxCommand x%x mbxStatus x%x\n",
+ phba->brd_no,
+ pmbox->mbxCommand,
+ pmbox->mbxStatus);
+
+ psli->sliinit.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
+ spin_unlock_irqrestore(phba->host->host_lock, iflag);
+ return (1);
+ }
+
+ mbout:
+ del_timer_sync(&psli->mbox_tmo);
+
+ /*
+ * It is a fatal error if unknown mbox command completion.
+ */
+ if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
+ MBX_SHUTDOWN) {
+
+ /* Unknow mailbox command compl */
+ lpfc_printf_log(phba,
+ KERN_ERR,
+ LOG_MBOX | LOG_SLI,
+ "%d:0323 Unknown Mailbox command %x Cmpl\n",
+ 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);
+ return (0);
+ }
+
+ psli->mbox_active = NULL;
+ if (pmbox->mbxStatus) {
+ psli->slistat.mboxStatErr++;
+ if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
+ /* Mbox cmd cmpl error - RETRYing */
+ lpfc_printf_log(phba,
+ KERN_INFO,
+ LOG_MBOX | LOG_SLI,
+ "%d:0305 Mbox cmd cmpl error - "
+ "RETRYing Data: x%x x%x x%x x%x\n",
+ phba->brd_no,
+ pmbox->mbxCommand,
+ pmbox->mbxStatus,
+ pmbox->un.varWords[0],
+ 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);
+ return (0);
+ }
+ }
+ }
+
+ /* Mailbox cmd <cmd> Cmpl <cmpl> */
+ lpfc_printf_log(phba,
+ KERN_INFO,
+ LOG_MBOX | LOG_SLI,
+ "%d:0307 Mailbox cmd x%x Cmpl x%p "
+ "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n",
+ phba->brd_no,
+ pmbox->mbxCommand,
+ pmb->mbox_cmpl,
+ *((uint32_t *) pmbox),
+ pmbox->un.varWords[0],
+ pmbox->un.varWords[1],
+ pmbox->un.varWords[2],
+ pmbox->un.varWords[3],
+ pmbox->un.varWords[4],
+ pmbox->un.varWords[5],
+ pmbox->un.varWords[6],
+ 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);
+ }
+ }
+
+
+ do {
+ process_next = 0; /* by default don't loop */
+ psli->sliinit.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);
+ process_next = 1;
+ continue; /* loop back */
+ }
+ } else {
+ /* Turn on IOCB processing */
+ for (i = 0; i < psli->sliinit.num_rings; i++) {
+ lpfc_sli_turn_on_ring(phba, i);
+ }
+
+ /* Free any lpfc_dmabuf's waiting for mbox cmd cmpls */
+ while (!list_empty(&phba->freebufList)) {
+ struct lpfc_dmabuf *mp;
+
+ mp = (struct lpfc_dmabuf *)
+ (phba->freebufList.next);
+ 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;
+
+ 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)) {
+ Rctl = FC_ELS_REQ;
+ Type = FC_ELS_DATA;
+ } else {
+ w5p =
+ (WORD5 *) & (saveq->iocb.un.
+ ulpWord[5]);
+ Rctl = w5p->hcsw.Rctl;
+ Type = w5p->hcsw.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);
+ }
+ match = 1;
+ } else {
+ /* We must search, based on rctl / type
+ for the right routine */
+ for (i = 0; i < pringinit->num_mask;
+ i++) {
+ if ((pringinit->prt[i].rctl ==
+ Rctl)
+ && (pringinit->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);
+ }
+ match = 1;
+ break;
+ }
+ }
+ }
+ if (match == 0) {
+ /* Unexpected Rctl / Type received */
+ /* Ring <ringno> handler: unexpected
+ Rctl <Rctl> Type <Type> received */
+ lpfc_printf_log(phba,
+ KERN_WARNING,
+ LOG_SLI,
+ "%d:0313 Ring %d handler: unexpected Rctl x%x "
+ "Type x%x received \n",
+ phba->brd_no,
+ 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)
+{
+ struct list_head *dlp;
+ IOCB_t *irsp = NULL;
+ struct lpfc_iocbq *cmd_iocb;
+ struct lpfc_sli *psli;
+ uint16_t iotag;
+
+
+ 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));
+ }
+ }
+
+ cmd_iocb = lpfc_search_txcmpl(pring, prspiocb);
+
+ return cmd_iocb;
+}
+
+static int
+lpfc_sli_process_sol_iocb(struct lpfc_hba * phba, struct lpfc_sli_ring * pring,
+ struct lpfc_iocbq *saveq)
+{
+ struct lpfc_iocbq * cmdiocbp;
+ int ringno, rc;
+ unsigned long iflag;
+
+ rc = 1;
+ ringno = pring->ringno;
+ /* Solicited Responses */
+ /* 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 */
+ if (cmdiocbp->iocb_cmpl) {
+ /* All iocb cmpls for LPFC_ELS_RING
+ * are posted to discovery tasklet.
+ */
+ if (ringno == LPFC_ELS_RING) {
+ lpfc_discq_post_event(phba, (void *)cmdiocbp,
+ (void *)saveq, LPFC_EVT_SOL_IOCB);
+ }
+ 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 {
+ /* Could not find the initiating command
+ * based of the response iotag.
+ * This is expected on ELS ring because of lpfc_els_abort().
+ */
+ if (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,
+ saveq->iocb.ulpIoTag,
+ saveq->iocb.ulpStatus,
+ saveq->iocb.un.ulpWord[4],
+ saveq->iocb.ulpCommand,
+ saveq->iocb.ulpContext);
+ }
+ }
+ spin_unlock_irqrestore(phba->host->host_lock, iflag);
+ return(rc);
+}
+static int
+lpfc_sli_handle_ring_event(struct lpfc_hba * phba,
+ struct lpfc_sli_ring * pring, uint32_t mask)
+{
+ 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;
+
+ spin_lock_irqsave(phba->host->host_lock, iflag);
+ psli->slistat.iocbEvent[ringno]++;
+
+ /* 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];
+
+ /* portRspMax is the number of rsp ring entries for this specific
+ ring. */
+ portRspMax = psli->sliinit.ringinit[ringno].numRiocb;
+
+ rspiocbp = NULL;
+ loopcnt = 0;
+
+ /* 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);
+
+ if (portRspPut >= portRspMax) {
+
+ /* 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);
+ }
+
+ 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;
+
+ /* bump iocb available response index */
+ 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++;
+
+ /*
+ * 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.
+ */
+ 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);
+ irsp = &(saveq->iocb);
+ list_del_init(&pring->iocb_continueq);
+ pring->iocb_continueq_cnt = 0;
+
+ psli->slistat.iocbRsp[ringno]++;
+
+ if(irsp->ulpStatus) {
+ /* Rsp ring <ringno> error: IOCB */
+ lpfc_printf_log(phba,
+ KERN_WARNING,
+ LOG_SLI,
+ "%d:0324 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,
+ 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));
+ }
+
+ /* Determine if IOCB command is a solicited or
+ unsolicited event */
+ type =
+ lpfc_sli_iocb_cmd_type[(irsp->
+ ulpCommand &
+ CMD_IOCB_MASK)];
+ 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)))) {
+ /* Call the specified completion
+ routine */
+ if (cmdiocbp->iocb_cmpl) {
+ 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 if (type == LPFC_UNKNOWN_IOCB) {
+ 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\n",
+ phba->brd_no,
+ irsp->ulpCommand,
+ irsp->ulpStatus,
+ irsp->ulpIoTag,
+ irsp->ulpContext);
+ }
+ }
+
+ if (free_saveq) {
+ /*
+ * Free up iocb buffer chain for command just
+ * processed
+ */
+ if (!list_empty(&pring->iocb_continueq)) {
+ list_for_each_entry_safe(rspiocbp,
+ next_iocb,
+ &pring->iocb_continueq, list) {
+ list_del_init(&rspiocbp->list);
+ mempool_free(rspiocbp,
+ phba->iocb_mem_pool);
+ }
+ }
+ mempool_free( saveq, phba->iocb_mem_pool);
+ }
+ }
+
+ /* Entire Command has been received */
+ entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
+
+ /* 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) */
+
+ if ((rspiocbp != 0) && (mask & HA_R0RE_REQ)) {
+ /* At least one response entry has been freed */
+ psli->slistat.iocbRspFull[ringno]++;
+ /* SET RxRE_RSP in Chip Att register */
+ status = ((CA_R0ATT | CA_R0RE_RSP) << (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->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);
+
+ }
+
+ spin_unlock_irqrestore(phba->host->host_lock, iflag);
+ 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)
+{
+ 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.
+ */
+ 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;
+ (iocb->iocb_cmpl) (phba, iocb, iocb);
+ } else {
+ mempool_free( iocb, phba->iocb_mem_pool);
+ }
+ }
+
+ pring->txq_cnt = 0;
+ INIT_LIST_HEAD(&(pring->txq));
+
+ /* Next issue ABTS for everything on the txcmplq */
+ 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;
+
+ 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;
+ }
+
+ /* 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.
+ */
+ }
+
+ if (flag == LPFC_SLI_ABORT_IMED) {
+ INIT_LIST_HEAD(&(pring->txcmplq));
+ pring->txcmplq_cnt = 0;
+ }
+
+ return (errcnt);
+}
+
+int
+lpfc_sli_brdreset(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;
+
+ psli = &phba->sli;
+
+ /* A board reset must use REAL SLIM. */
+ psli->sliinit.sli_flag &= ~LPFC_SLI2_ACTIVE;
+
+ word0 = 0;
+ swpmb = (MAILBOX_t *) & word0;
+ swpmb->mbxCommand = MBX_RESTART;
+ swpmb->mbxHc = 1;
+
+ to_slim = phba->MBslimaddr;
+ writel(*(uint32_t *) swpmb, to_slim);
+ readl(to_slim); /* flush */
+
+ /* 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 = (uint8_t *) phba->MBslimaddr + sizeof (uint32_t);
+ writel(*(uint32_t *) swpmb, to_slim);
+ readl(to_slim); /* flush */
+
+ /* 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->sliinit.sli_flag);
+
+ /* Turn off SERR, PERR in PCI cmd register */
+ phba->hba_state = LPFC_INIT_START;
+
+ /* perform board reset */
+ phba->fc_eventTag = 0;
+ phba->fc_myDID = 0;
+ phba->fc_prevDID = 0;
+
+ /* Turn off parity checking and serr during the physical reset */
+ pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
+ pci_write_config_word(phba->pcidev, PCI_COMMAND,
+ (cfg_value &
+ ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
+
+ /* Now toggle INITFF bit in the Host Control Register */
+ writel(HC_INITFF, phba->HCregaddr);
+ mdelay(1);
+ readl(phba->HCregaddr); /* flush */
+ writel(0, phba->HCregaddr);
+ 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++) {
+ pring = &psli->ring[i];
+ pring->flag = 0;
+ pring->rspidx = 0;
+ pring->next_cmdidx = 0;
+ pring->local_getidx = 0;
+ pring->cmdidx = 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;
+}
+
+int
+lpfc_sli_hba_setup(struct lpfc_hba * phba)
+{
+ struct lpfc_sli *psli;
+ LPFC_MBOXQ_t *pmb;
+ int read_rev_reset, i, rc;
+ uint32_t status;
+
+ psli = &phba->sli;
+
+ /* Setep SLI interface for HBA register and HBA SLIM access */
+ lpfc_setup_slim_access(phba);
+
+ /* Set board state to initialization started */
+ phba->hba_state = LPFC_INIT_START;
+ read_rev_reset = 0;
+
+ /* 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;
+
+ /* Sleep for 2.5 sec */
+ msleep(2500);
+ }
+
+top:
+ /* Read the HBA Host Status Register */
+ status = readl(phba->HSregaddr);
+
+ /* Check status register to see what current state is */
+ i = 0;
+ while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
+
+ /* Check 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.
+ */
+ if (i++ >= 20) {
+ /* Adapter failed to init, timeout, status reg
+ <status> */
+ lpfc_printf_log(phba,
+ KERN_ERR,
+ LOG_INIT,
+ "%d:0436 Adapter failed to init, "
+ "timeout, status reg x%x\n",
+ phba->brd_no,
+ status);
+ phba->hba_state = LPFC_HBA_ERROR;
+ return -ETIMEDOUT;
+ }
+
+ /* Check to see if any errors occurred during init */
+ if (status & HS_FFERM) {
+ /* ERROR: During chipset initialization */
+ /* Adapter failed to init, chipset, status reg
+ <status> */
+ lpfc_printf_log(phba,
+ KERN_ERR,
+ LOG_INIT,
+ "%d:0437 Adapter failed to init, "
+ "chipset, status reg x%x\n",
+ phba->brd_no,
+ status);
+ phba->hba_state = LPFC_HBA_ERROR;
+ return -EIO;
+ }
+
+ if (i <= 5) {
+ msleep(10);
+ } else if (i <= 10) {
+ msleep(500);
+ } else {
+ msleep(2500);
+ }
+
+ if (i == 15) {
+ phba->hba_state = 0; /* Don't skip post */
+ lpfc_sli_brdreset(phba);
+ phba->hba_state = LPFC_INIT_START;
+ }
+ /* Read the HBA Host Status Register */
+ status = readl(phba->HSregaddr);
+ }
+
+ /* Check to see if any errors occurred during init */
+ if (status & HS_FFERM) {
+ /* ERROR: During chipset initialization */
+ /* Adapter failed to init, chipset, status reg <status> */
+ lpfc_printf_log(phba,
+ KERN_ERR,
+ LOG_INIT,
+ "%d:0438 Adapter failed to init, chipset, "
+ "status reg x%x\n",
+ phba->brd_no,
+ status);
+ phba->hba_state = LPFC_HBA_ERROR;
+ return -EIO;
+ }
+
+ /* Clear all interrupt enable conditions */
+ writel(0, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+
+ /* setup host attn register */
+ writel(0xffffffff, phba->HAregaddr);
+ readl(phba->HAregaddr); /* flush */
+
+ /* 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;
+ }
+
+ /* 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;
+ }
+ 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,
+ "%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;
+ }
+
+ 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;
+}
+
+
+
+
+
+
+
+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;
+ mb = &pmbox->mb;
+ 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;
+ }
+
+ /* Abort all the non active mailbox commands. */
+ pmbox = lpfc_mbox_get(phba);
+ while (pmbox) {
+ mb = &pmbox->mb;
+ 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);
+ }
+ pmbox = lpfc_mbox_get(phba);
+ }
+ return;
+}
+/*! lpfc_mbox_timeout
+ *
+ * \pre
+ * \post
+ * \param hba Pointer to per struct lpfc_hba structure
+ * \param l1 Pointer to the driver's mailbox queue.
+ * \return
+ * void
+ *
+ * \b Description:
+ *
+ * This routine handles mailbox timeout events at timer interrupt context.
+ */
+void
+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);
+
+ pmbox = psli->mbox_active;
+ mb = &pmbox->mb;
+
+ /* Mbox cmd <mbxCommand> timeout */
+ lpfc_printf_log(phba,
+ KERN_ERR,
+ LOG_MBOX | LOG_SLI,
+ "%d:0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
+ phba->brd_no,
+ mb->mbxCommand,
+ phba->hba_state,
+ psli->sliinit.sli_flag,
+ psli->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;
+ }
+
+ 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;
+ uint32_t ha_copy;
+ int i;
+ unsigned long drvr_flag = 0;
+ volatile uint32_t word0, ldata;
+ void *to_slim;
+
+ psli = &phba->sli;
+ if (flag & MBX_POLL) {
+ spin_lock_irqsave(phba->host->host_lock, drvr_flag);
+ }
+
+ mb = &pmbox->mb;
+ status = MBX_SUCCESS;
+
+ if (psli->sliinit.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.
+ */
+
+ if (flag & MBX_POLL) {
+ 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 (!(psli->sliinit.sli_flag & LPFC_SLI2_ACTIVE)) {
+
+ /* Mbox command <mbxCommand> cannot issue */
+ LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag)
+ return (MBX_NOT_FINISHED);
+ }
+
+ /* Handle STOP IOCB processing flag. This is only meaningful
+ * if we are not polling for mbox completion.
+ */
+ if (flag & MBX_STOP_IOCB) {
+ flag &= ~MBX_STOP_IOCB;
+ /* Now flag each ring */
+ for (i = 0; i < psli->sliinit.num_rings; i++) {
+ /* If the ring is active, flag it */
+ if (psli->ring[i].cmdringaddr) {
+ psli->ring[i].flag |=
+ LPFC_STOP_IOCB_MBX;
+ }
+ }
+ }
+
+ /* Another mailbox command is still being processed, queue this
+ * command to be processed later.
+ */
+ lpfc_mbox_put(phba, pmbox);
+
+ /* Mbox cmd issue - BUSY */
+ lpfc_printf_log(phba,
+ KERN_INFO,
+ LOG_MBOX | LOG_SLI,
+ "%d:0308 Mbox cmd issue - BUSY Data: x%x x%x x%x x%x\n",
+ phba->brd_no,
+ mb->mbxCommand,
+ phba->hba_state,
+ psli->sliinit.sli_flag,
+ flag);
+
+ psli->slistat.mboxBusy++;
+ if (flag == MBX_POLL) {
+ spin_unlock_irqrestore(phba->host->host_lock,
+ drvr_flag);
+ }
+ return (MBX_BUSY);
+ }
+
+ /* Handle STOP IOCB processing flag. This is only meaningful
+ * if we are not polling for mbox completion.
+ */
+ if (flag & MBX_STOP_IOCB) {
+ flag &= ~MBX_STOP_IOCB;
+ if (flag == MBX_NOWAIT) {
+ /* Now flag each ring */
+ for (i = 0; i < psli->sliinit.num_rings; i++) {
+ /* If the ring is active, flag it */
+ if (psli->ring[i].cmdringaddr) {
+ psli->ring[i].flag |=
+ LPFC_STOP_IOCB_MBX;
+ }
+ }
+ }
+ }
+
+ psli->sliinit.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;
+
+ /* 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);
+ }
+
+ /* Mailbox cmd <cmd> issue */
+ lpfc_printf_log(phba,
+ KERN_INFO,
+ LOG_MBOX | LOG_SLI,
+ "%d:0309 Mailbox cmd x%x issue Data: x%x x%x x%x\n",
+ phba->brd_no,
+ mb->mbxCommand,
+ phba->hba_state,
+ psli->sliinit.sli_flag,
+ flag);
+
+ psli->slistat.mboxCmd++;
+ evtctr = psli->slistat.mboxEvent;
+
+ /* next set own bit for the adapter and copy over command word */
+ mb->mbxOwner = OWN_CHIP;
+
+ if (psli->sliinit.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);
+ } 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)));
+ }
+
+ /* 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));
+
+ /* Next copy over first word, with mbxOwner set */
+ ldata = *((volatile uint32_t *)mb);
+ to_slim = phba->MBslimaddr;
+ writel(ldata, to_slim);
+ readl(to_slim); /* flush */
+
+ if (mb->mbxCommand == MBX_CONFIG_PORT) {
+ /* switch over to host mailbox */
+ psli->sliinit.sli_flag |= LPFC_SLI2_ACTIVE;
+ }
+ }
+
+ wmb();
+ /* interrupt board to doit right away */
+ writel(CA_MBATT, phba->CAregaddr);
+ readl(phba->CAregaddr); /* flush */
+
+ switch (flag) {
+ case MBX_NOWAIT:
+ /* Don't wait for it to finish, just return */
+ psli->mbox_active = pmbox;
+ break;
+
+ case MBX_POLL:
+ i = 0;
+ psli->mbox_active = NULL;
+ if (psli->sliinit.sli_flag & LPFC_SLI2_ACTIVE) {
+ /* First read mbox status word */
+ mbox = (MAILBOX_t *) psli->MBhostaddr;
+ word0 = *((volatile uint32_t *)mbox);
+ word0 = le32_to_cpu(word0);
+ } else {
+ /* First read mbox status word */
+ word0 = readl(phba->MBslimaddr);
+ }
+
+ /* Read the HBA Host Attention Register */
+ ha_copy = readl(phba->HAregaddr);
+
+ /* 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;
+ 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))
+ break;
+
+ spin_unlock_irqrestore(phba->host->host_lock,
+ drvr_flag);
+
+ /* Can be in interrupt context, do not sleep */
+ /* (or might be called with interrupts disabled) */
+ mdelay(i);
+
+ spin_lock_irqsave(phba->host->host_lock, drvr_flag);
+
+ if (psli->sliinit.sli_flag & LPFC_SLI2_ACTIVE) {
+ /* First copy command data */
+ mbox = (MAILBOX_t *) psli->MBhostaddr;
+ word0 = *((volatile uint32_t *)mbox);
+ word0 = le32_to_cpu(word0);
+ if (mb->mbxCommand == MBX_CONFIG_PORT) {
+ MAILBOX_t *slimmb;
+ volatile uint32_t slimword0;
+ /* Check real SLIM for any errors */
+ slimword0 = readl(phba->MBslimaddr);
+ slimmb = (MAILBOX_t *) & slimword0;
+ if (((slimword0 & OWN_CHIP) != OWN_CHIP)
+ && slimmb->mbxStatus) {
+ psli->sliinit.sli_flag &=
+ ~LPFC_SLI2_ACTIVE;
+ word0 = slimword0;
+ }
+ }
+ } else {
+ /* First copy command data */
+ word0 = readl(phba->MBslimaddr);
+ }
+ /* Read the HBA Host Attention Register */
+ ha_copy = readl(phba->HAregaddr);
+ }
+
+ if (psli->sliinit.sli_flag & LPFC_SLI2_ACTIVE) {
+ /* First copy command data */
+ mbox = (MAILBOX_t *) psli->MBhostaddr;
+ /* copy results back to user */
+ lpfc_sli_pcimem_bcopy((uint32_t *) mbox,
+ (uint32_t *) mb,
+ (sizeof (uint32_t) *
+ MAILBOX_CMD_WSIZE));
+ } else {
+ /* First copy command data */
+ lpfc_memcpy_from_slim((void *)mb,
+ phba->MBslimaddr,
+ sizeof (uint32_t) * (MAILBOX_CMD_WSIZE));
+ }
+
+ writel(HA_MBATT, phba->HAregaddr);
+ readl(phba->HAregaddr); /* flush */
+
+ psli->sliinit.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ status = mb->mbxStatus;
+ }
+
+ if (flag == MBX_POLL) {
+ spin_unlock_irqrestore(phba->host->host_lock, drvr_flag);
+ }
+ return (status);
+}
+
+static int
+lpfc_sli_ringtx_put(struct lpfc_hba * phba, struct lpfc_sli_ring * pring,
+ struct lpfc_iocbq * piocb)
+{
+ /* Insert the caller's iocb in the txq tail for later processing. */
+ list_add_tail(&piocb->list, &pring->txq);
+ pring->txq_cnt++;
+ return (0);
+}
+
+static struct lpfc_iocbq *
+lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
+ struct lpfc_iocbq ** piocb)
+{
+ struct lpfc_iocbq * nextiocb;
+
+ nextiocb = lpfc_sli_ringtx_get(phba, pring);
+ if (!nextiocb) {
+ nextiocb = *piocb;
+ *piocb = NULL;
+ }
+
+ return nextiocb;
+}
+
+int
+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;
+
+ /*
+ * We should never get an IOCB if we are in a < LINK_DOWN state
+ */
+ if (unlikely(phba->hba_state < LPFC_LINK_DOWN))
+ return IOCB_ERROR;
+
+ /*
+ * Check to see if we are blocking IOCB processing because of a
+ * outstanding mbox command.
+ */
+ if (unlikely(pring->flag & LPFC_STOP_IOCB_MBX))
+ goto iocb_busy;
+
+ if (unlikely(phba->hba_state == LPFC_LINK_DOWN)) {
+ /*
+ * Only CREATE_XRI, CLOSE_XRI, ABORT_XRI, and QUE_RING_BUF
+ * can be issued if the link is not up.
+ */
+ 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.
+ */
+ if (piocb->iocb_cmpl)
+ piocb->iocb_cmpl = NULL;
+ /*FALLTHROUGH*/
+ case CMD_CREATE_XRI_CR:
+ break;
+ default:
+ goto iocb_busy;
+ }
+
+ /*
+ * 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)))
+ 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
+ lpfc_sli_update_full_ring(phba, pring);
+
+ if (!piocb)
+ return IOCB_SUCCESS;
+
+ goto out_busy;
+
+ iocb_busy:
+ psli->slistat.iocbCmdDelay[ringno]++;
+
+ out_busy:
+
+ if (!(flag & SLI_IOCB_RET_IOCB)) {
+ lpfc_sli_ringtx_put(phba, pring, piocb);
+ return IOCB_SUCCESS;
+ }
+
+ return IOCB_BUSY;
+}
+
+int
+lpfc_sli_queue_setup(struct lpfc_hba * phba)
+{
+ struct lpfc_sli *psli;
+ struct lpfc_sli_ring *pring;
+ int i, cnt;
+
+ psli = &phba->sli;
+ 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++) {
+ pring = &psli->ring[i];
+ pring->ringno = i;
+ pring->next_cmdidx = 0;
+ pring->local_getidx = 0;
+ pring->cmdidx = 0;
+ INIT_LIST_HEAD(&pring->txq);
+ 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 *));
+ }
+ }
+ return (1);
+}
+
+int
+lpfc_sli_hba_down(struct lpfc_hba * phba)
+{
+ 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;
+
+ psli = &phba->sli;
+ lpfc_hba_down_prep(phba);
+
+ for (i = 0; i < psli->sliinit.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.
+ */
+ pring->txq_cnt = 0;
+
+ 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_DOWN;
+ (iocb->iocb_cmpl) (phba, iocb, iocb);
+ } else {
+ mempool_free( iocb, phba->iocb_mem_pool);
+ }
+ }
+
+ INIT_LIST_HEAD(&(pring->txq));
+
+ if (pring->fast_lookup) {
+ kfree(pring->fast_lookup);
+ pring->fast_lookup = NULL;
+ }
+
+ }
+
+ /* 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);
+ }
+ psli->sliinit.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);
+ }
+ 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);
+ }
+
+ return 1;
+}
+
+void
+lpfc_sli_pcimem_bcopy(uint32_t * src, uint32_t * dest, uint32_t cnt)
+{
+ uint32_t ldata;
+ int i;
+
+ for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
+ ldata = *src++;
+ ldata = le32_to_cpu(ldata);
+ *dest++ = ldata;
+ }
+}
+
+int
+lpfc_sli_ringpostbuf_put(struct lpfc_hba * phba, struct lpfc_sli_ring * pring,
+ struct lpfc_dmabuf * mp)
+{
+ /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
+ later */
+ list_add_tail(&mp->list, &pring->postbufq);
+
+ pring->postbufq_cnt++;
+ return 0;
+}
+
+
+struct lpfc_dmabuf *
+lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
+ dma_addr_t phys)
+{
+ struct lpfc_dmabuf *mp, *next_mp;
+ struct list_head *slp = &pring->postbufq;
+
+ /* Search postbufq, from the begining, looking for a match on phys */
+ list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
+ 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;
+ }
+ }
+
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "%d:0410 Cannot find virtual addr for mapped buf on "
+ "ring %d Data x%llx x%p x%p x%x\n",
+ phba->brd_no, pring->ringno, (unsigned long long)phys,
+ slp->next, slp->prev, pring->postbufq_cnt);
+ 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)
+{
+ struct lpfc_dmabuf *buf_ptr, *buf_ptr1;
+ /* Free the resources associated with the ELS_REQUEST64 IOCB the driver
+ * just aborted.
+ * In this case, context2 = cmd, context2->next = rsp, context3 = bpl
+ */
+ if (cmdiocb->context2) {
+ buf_ptr1 = (struct lpfc_dmabuf *) cmdiocb->context2;
+
+ /* 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);
+ lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
+ kfree(buf_ptr);
+ }
+ lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys);
+ kfree(buf_ptr1);
+ }
+
+ if (cmdiocb->context3) {
+ buf_ptr = (struct lpfc_dmabuf *) cmdiocb->context3;
+ lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
+ kfree(buf_ptr);
+ }
+ mempool_free( cmdiocb, phba->iocb_mem_pool);
+ return;
+}
+
+int
+lpfc_sli_issue_abort_iotag32(struct lpfc_hba * phba,
+ 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;
+
+ 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
+ * resources till the actual abort request completes.
+ */
+ abtsiocbp->context1 = (void *)((unsigned long)icmd->ulpCommand);
+ abtsiocbp->context2 = cmdiocb->context2;
+ abtsiocbp->context3 = cmdiocb->context3;
+ cmdiocb->context2 = NULL;
+ cmdiocb->context3 = NULL;
+ abtsiocbp->iocb_cmpl = lpfc_sli_abort_elsreq_cmpl;
+ break;
+ default:
+ mempool_free( abtsiocbp, phba->iocb_mem_pool);
+ return (0);
+ }
+
+ iabt->un.amxri.abortType = ABORT_TYPE_ABTS;
+ iabt->un.amxri.iotag32 = iotag32;
+
+ 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);
+ }
+
+ 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);
+}
+
+int
+lpfc_sli_sum_iocb_host(struct lpfc_hba * phba,
+ struct lpfc_sli_ring * pring)
+{
+ struct lpfc_sli *psli;
+ struct lpfc_iocbq *iocb, *next_iocb;
+ IOCB_t *cmd = NULL;
+ struct lpfc_scsi_buf *lpfc_cmd;
+ int sum;
+
+ psli = &phba->sli;
+ sum = 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;
+
+ /* 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++;
+ }
+
+ /* 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);
+}
+
+int
+lpfc_sli_abort_iocb_host(struct lpfc_hba * phba,
+ struct lpfc_sli_ring * pring, 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) {
+ 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) {
+ 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);
+}
+
+int
+lpfc_sli_sum_iocb_lun(struct lpfc_hba * phba,
+ struct lpfc_sli_ring * pring,
+ uint16_t scsi_target, uint64_t scsi_lun)
+{
+ struct lpfc_sli *psli;
+ struct lpfc_iocbq *iocb, *next_iocb;
+ IOCB_t *cmd = NULL;
+ struct lpfc_scsi_buf *lpfc_cmd;
+ int sum;
+
+ psli = &phba->sli;
+ sum = 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;
+
+ /* 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;
+ }
+ sum++;
+ }
+
+ /* 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;
+ }
+
+ 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);
+}
+
+int
+lpfc_sli_abort_iocb_tgt(struct lpfc_hba * phba,
+ struct lpfc_sli_ring * pring,
+ uint16_t scsi_target, 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)) {
+ 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);
+}
+
+
+
+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));
+
+ /* The waiter is looking for LPFC_IO_HIPRI bit to be set
+ as a signal to wake up */
+ queue1->iocb_flag |= LPFC_IO_HIPRI;
+ return;
+}
+
+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)
+{
+ int j, delay_time, retval = IOCB_ERROR;
+
+ /* The caller must left context1 empty. */
+ if (piocb->context_un.hipri_wait_queue != 0) {
+ return IOCB_ERROR;
+ }
+
+ /*
+ * If the caller has provided a response iocbq buffer, context2 must
+ * be NULL or its an error.
+ */
+ if (prspiocbq && piocb->context2) {
+ return IOCB_ERROR;
+ }
+
+ piocb->context2 = prspiocbq;
+
+ /* 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;
+ }
+
+ /*
+ * 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.
+ */
+
+ 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;
+ }
+ }
+
+ 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 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;
+}
+
+int
+lpfc_sli_issue_mbox_wait(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq,
+ uint32_t timeout)
+{
+ DECLARE_WAIT_QUEUE_HEAD(done_q);
+ DECLARE_WAITQUEUE(wq_entry, current);
+ uint32_t timeleft = 0;
+ int retval;
+
+ /* The caller must leave context1 empty. */
+ if (pmboxq->context1 != 0) {
+ return (MBX_NOT_FINISHED);
+ }
+
+ /* setup wake call as IOCB callback */
+ pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
+ /* setup context field to pass wait_queue pointer to wake function */
+ pmboxq->context1 = &done_q;
+
+ /* start to sleep before we wait, to avoid races */
+ set_current_state(TASK_INTERRUPTIBLE);
+ 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) {
+ retval = MBX_TIMEOUT;
+ } else {
+ retval = MBX_SUCCESS;
+ }
+ }
+
+
+ set_current_state(TASK_RUNNING);
+ remove_wait_queue(&done_q, &wq_entry);
+ return retval;
+}
+
+static void
+lpfc_sli_wake_iocb_wait(struct lpfc_hba * phba,
+ struct lpfc_iocbq * queue1, struct lpfc_iocbq * queue2)
+{
+ wait_queue_head_t *pdone_q;
+
+ queue1->iocb_flag |= LPFC_IO_WAIT;
+ if (queue1->context2 && queue2)
+ memcpy(queue1->context2, queue2, sizeof (struct lpfc_iocbq));
+
+ /*
+ * 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);
+ }
+
+ return;
+}
+
+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)
+{
+ DECLARE_WAIT_QUEUE_HEAD(done_q);
+ DECLARE_WAITQUEUE(wq_entry, current);
+ uint32_t timeleft = 0;
+ int retval;
+
+ /* The caller must leave context1 empty for the driver. */
+ if (piocb->context_un.hipri_wait_queue != 0)
+ return (IOCB_ERROR);
+
+ /* If the caller has provided a response iocbq buffer, then context2
+ * is NULL or its an error.
+ */
+ 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;
+
+ /* start to sleep before we wait, to avoid races */
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ add_wait_queue(&done_q, &wq_entry);
+
+ /* 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);
+
+ piocb->context_un.hipri_wait_queue = NULL;
+ piocb->iocb_cmpl = NULL;
+ if (piocb->context2 == prspiocbq)
+ piocb->context2 = NULL;
+
+ /*
+ * 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;
+ }
+ }
+
+ remove_wait_queue(&done_q, &wq_entry);
+ set_current_state(TASK_RUNNING);
+ piocb->context2 = NULL;
+ return retval;
+}
+
+irqreturn_t
+lpfc_intr_handler(int irq, void *dev_id, struct pt_regs * regs)
+{
+ struct lpfc_hba *phba;
+ int intr_status;
+
+ /*
+ * Get the driver's phba structure from the dev_id and
+ * assume the HBA is not interrupting.
+ */
+ 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;
+ }
+
+ return IRQ_NONE;
+
+} /* lpfc_intr_handler */
git://git.onelab.eu / linux-2.6.git / blobdiff