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![Jiapeng Chong](/assets/img/avatar_default.png)
Fix the following W=1 kernel warnings: drivers/scsi/mpi3mr/mpi3mr_app.c:1706: warning: expecting prototype for adapter_state_show(). Prototype was for adp_state_show() instead. Link: https://lore.kernel.org/r/20220525093514.55467-1-jiapeng.chong@linux.alibaba.com Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
1860 lines
52 KiB
C
1860 lines
52 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Driver for Broadcom MPI3 Storage Controllers
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*
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* Copyright (C) 2017-2022 Broadcom Inc.
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* (mailto: mpi3mr-linuxdrv.pdl@broadcom.com)
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*
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*/
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#include "mpi3mr.h"
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#include <linux/bsg-lib.h>
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#include <uapi/scsi/scsi_bsg_mpi3mr.h>
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/**
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* mpi3mr_bsg_pel_abort - sends PEL abort request
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* @mrioc: Adapter instance reference
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*
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* This function sends PEL abort request to the firmware through
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* admin request queue.
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*
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* Return: 0 on success, -1 on failure
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*/
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static int mpi3mr_bsg_pel_abort(struct mpi3mr_ioc *mrioc)
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{
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struct mpi3_pel_req_action_abort pel_abort_req;
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struct mpi3_pel_reply *pel_reply;
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int retval = 0;
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u16 pe_log_status;
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if (mrioc->reset_in_progress) {
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dprint_bsg_err(mrioc, "%s: reset in progress\n", __func__);
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return -1;
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}
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if (mrioc->stop_bsgs) {
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dprint_bsg_err(mrioc, "%s: bsgs are blocked\n", __func__);
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return -1;
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}
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memset(&pel_abort_req, 0, sizeof(pel_abort_req));
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mutex_lock(&mrioc->pel_abort_cmd.mutex);
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if (mrioc->pel_abort_cmd.state & MPI3MR_CMD_PENDING) {
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dprint_bsg_err(mrioc, "%s: command is in use\n", __func__);
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mutex_unlock(&mrioc->pel_abort_cmd.mutex);
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return -1;
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}
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mrioc->pel_abort_cmd.state = MPI3MR_CMD_PENDING;
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mrioc->pel_abort_cmd.is_waiting = 1;
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mrioc->pel_abort_cmd.callback = NULL;
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pel_abort_req.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_PEL_ABORT);
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pel_abort_req.function = MPI3_FUNCTION_PERSISTENT_EVENT_LOG;
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pel_abort_req.action = MPI3_PEL_ACTION_ABORT;
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pel_abort_req.abort_host_tag = cpu_to_le16(MPI3MR_HOSTTAG_PEL_WAIT);
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mrioc->pel_abort_requested = 1;
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init_completion(&mrioc->pel_abort_cmd.done);
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retval = mpi3mr_admin_request_post(mrioc, &pel_abort_req,
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sizeof(pel_abort_req), 0);
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if (retval) {
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retval = -1;
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dprint_bsg_err(mrioc, "%s: admin request post failed\n",
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__func__);
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mrioc->pel_abort_requested = 0;
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goto out_unlock;
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}
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wait_for_completion_timeout(&mrioc->pel_abort_cmd.done,
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(MPI3MR_INTADMCMD_TIMEOUT * HZ));
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if (!(mrioc->pel_abort_cmd.state & MPI3MR_CMD_COMPLETE)) {
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mrioc->pel_abort_cmd.is_waiting = 0;
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dprint_bsg_err(mrioc, "%s: command timedout\n", __func__);
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if (!(mrioc->pel_abort_cmd.state & MPI3MR_CMD_RESET))
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mpi3mr_soft_reset_handler(mrioc,
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MPI3MR_RESET_FROM_PELABORT_TIMEOUT, 1);
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retval = -1;
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goto out_unlock;
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}
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if ((mrioc->pel_abort_cmd.ioc_status & MPI3_IOCSTATUS_STATUS_MASK)
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!= MPI3_IOCSTATUS_SUCCESS) {
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dprint_bsg_err(mrioc,
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"%s: command failed, ioc_status(0x%04x) log_info(0x%08x)\n",
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__func__, (mrioc->pel_abort_cmd.ioc_status &
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MPI3_IOCSTATUS_STATUS_MASK),
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mrioc->pel_abort_cmd.ioc_loginfo);
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retval = -1;
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goto out_unlock;
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}
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if (mrioc->pel_abort_cmd.state & MPI3MR_CMD_REPLY_VALID) {
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pel_reply = (struct mpi3_pel_reply *)mrioc->pel_abort_cmd.reply;
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pe_log_status = le16_to_cpu(pel_reply->pe_log_status);
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if (pe_log_status != MPI3_PEL_STATUS_SUCCESS) {
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dprint_bsg_err(mrioc,
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"%s: command failed, pel_status(0x%04x)\n",
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__func__, pe_log_status);
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retval = -1;
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}
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}
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out_unlock:
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mrioc->pel_abort_cmd.state = MPI3MR_CMD_NOTUSED;
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mutex_unlock(&mrioc->pel_abort_cmd.mutex);
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return retval;
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}
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/**
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* mpi3mr_bsg_verify_adapter - verify adapter number is valid
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* @ioc_number: Adapter number
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*
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* This function returns the adapter instance pointer of given
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* adapter number. If adapter number does not match with the
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* driver's adapter list, driver returns NULL.
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*
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* Return: adapter instance reference
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*/
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static struct mpi3mr_ioc *mpi3mr_bsg_verify_adapter(int ioc_number)
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{
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struct mpi3mr_ioc *mrioc = NULL;
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spin_lock(&mrioc_list_lock);
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list_for_each_entry(mrioc, &mrioc_list, list) {
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if (mrioc->id == ioc_number) {
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spin_unlock(&mrioc_list_lock);
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return mrioc;
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}
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}
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spin_unlock(&mrioc_list_lock);
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return NULL;
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}
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/**
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* mpi3mr_enable_logdata - Handler for log data enable
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* @mrioc: Adapter instance reference
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* @job: BSG job reference
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*
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* This function enables log data caching in the driver if not
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* already enabled and return the maximum number of log data
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* entries that can be cached in the driver.
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*
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* Return: 0 on success and proper error codes on failure
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*/
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static long mpi3mr_enable_logdata(struct mpi3mr_ioc *mrioc,
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struct bsg_job *job)
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{
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struct mpi3mr_logdata_enable logdata_enable;
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if (!mrioc->logdata_buf) {
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mrioc->logdata_entry_sz =
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(mrioc->reply_sz - (sizeof(struct mpi3_event_notification_reply) - 4))
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+ MPI3MR_BSG_LOGDATA_ENTRY_HEADER_SZ;
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mrioc->logdata_buf_idx = 0;
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mrioc->logdata_buf = kcalloc(MPI3MR_BSG_LOGDATA_MAX_ENTRIES,
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mrioc->logdata_entry_sz, GFP_KERNEL);
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if (!mrioc->logdata_buf)
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return -ENOMEM;
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}
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memset(&logdata_enable, 0, sizeof(logdata_enable));
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logdata_enable.max_entries =
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MPI3MR_BSG_LOGDATA_MAX_ENTRIES;
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if (job->request_payload.payload_len >= sizeof(logdata_enable)) {
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sg_copy_from_buffer(job->request_payload.sg_list,
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job->request_payload.sg_cnt,
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&logdata_enable, sizeof(logdata_enable));
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return 0;
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}
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return -EINVAL;
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}
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/**
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* mpi3mr_get_logdata - Handler for get log data
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* @mrioc: Adapter instance reference
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* @job: BSG job pointer
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* This function copies the log data entries to the user buffer
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* when log caching is enabled in the driver.
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*
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* Return: 0 on success and proper error codes on failure
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*/
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static long mpi3mr_get_logdata(struct mpi3mr_ioc *mrioc,
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struct bsg_job *job)
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{
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u16 num_entries, sz, entry_sz = mrioc->logdata_entry_sz;
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if ((!mrioc->logdata_buf) || (job->request_payload.payload_len < entry_sz))
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return -EINVAL;
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num_entries = job->request_payload.payload_len / entry_sz;
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if (num_entries > MPI3MR_BSG_LOGDATA_MAX_ENTRIES)
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num_entries = MPI3MR_BSG_LOGDATA_MAX_ENTRIES;
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sz = num_entries * entry_sz;
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if (job->request_payload.payload_len >= sz) {
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sg_copy_from_buffer(job->request_payload.sg_list,
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job->request_payload.sg_cnt,
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mrioc->logdata_buf, sz);
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return 0;
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}
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return -EINVAL;
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}
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/**
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* mpi3mr_bsg_pel_enable - Handler for PEL enable driver
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* @mrioc: Adapter instance reference
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* @job: BSG job pointer
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*
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* This function is the handler for PEL enable driver.
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* Validates the application given class and locale and if
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* requires aborts the existing PEL wait request and/or issues
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* new PEL wait request to the firmware and returns.
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*
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* Return: 0 on success and proper error codes on failure.
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*/
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static long mpi3mr_bsg_pel_enable(struct mpi3mr_ioc *mrioc,
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struct bsg_job *job)
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{
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long rval = -EINVAL;
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struct mpi3mr_bsg_out_pel_enable pel_enable;
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u8 issue_pel_wait;
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u8 tmp_class;
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u16 tmp_locale;
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if (job->request_payload.payload_len != sizeof(pel_enable)) {
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dprint_bsg_err(mrioc, "%s: invalid size argument\n",
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__func__);
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return rval;
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}
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sg_copy_to_buffer(job->request_payload.sg_list,
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job->request_payload.sg_cnt,
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&pel_enable, sizeof(pel_enable));
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if (pel_enable.pel_class > MPI3_PEL_CLASS_FAULT) {
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dprint_bsg_err(mrioc, "%s: out of range class %d sent\n",
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__func__, pel_enable.pel_class);
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rval = 0;
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goto out;
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}
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if (!mrioc->pel_enabled)
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issue_pel_wait = 1;
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else {
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if ((mrioc->pel_class <= pel_enable.pel_class) &&
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!((mrioc->pel_locale & pel_enable.pel_locale) ^
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pel_enable.pel_locale)) {
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issue_pel_wait = 0;
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rval = 0;
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} else {
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pel_enable.pel_locale |= mrioc->pel_locale;
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if (mrioc->pel_class < pel_enable.pel_class)
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pel_enable.pel_class = mrioc->pel_class;
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rval = mpi3mr_bsg_pel_abort(mrioc);
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if (rval) {
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dprint_bsg_err(mrioc,
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"%s: pel_abort failed, status(%ld)\n",
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__func__, rval);
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goto out;
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}
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issue_pel_wait = 1;
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}
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}
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if (issue_pel_wait) {
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tmp_class = mrioc->pel_class;
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tmp_locale = mrioc->pel_locale;
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mrioc->pel_class = pel_enable.pel_class;
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mrioc->pel_locale = pel_enable.pel_locale;
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mrioc->pel_enabled = 1;
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rval = mpi3mr_pel_get_seqnum_post(mrioc, NULL);
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if (rval) {
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mrioc->pel_class = tmp_class;
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mrioc->pel_locale = tmp_locale;
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mrioc->pel_enabled = 0;
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dprint_bsg_err(mrioc,
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"%s: pel get sequence number failed, status(%ld)\n",
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__func__, rval);
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}
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}
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out:
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return rval;
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}
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/**
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* mpi3mr_get_all_tgt_info - Get all target information
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* @mrioc: Adapter instance reference
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* @job: BSG job reference
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*
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* This function copies the driver managed target devices device
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* handle, persistent ID, bus ID and taret ID to the user
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* provided buffer for the specific controller. This function
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* also provides the number of devices managed by the driver for
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* the specific controller.
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*
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* Return: 0 on success and proper error codes on failure
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*/
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static long mpi3mr_get_all_tgt_info(struct mpi3mr_ioc *mrioc,
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struct bsg_job *job)
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{
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long rval = -EINVAL;
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u16 num_devices = 0, i = 0, size;
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unsigned long flags;
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struct mpi3mr_tgt_dev *tgtdev;
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struct mpi3mr_device_map_info *devmap_info = NULL;
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struct mpi3mr_all_tgt_info *alltgt_info = NULL;
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uint32_t min_entrylen = 0, kern_entrylen = 0, usr_entrylen = 0;
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if (job->request_payload.payload_len < sizeof(u32)) {
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dprint_bsg_err(mrioc, "%s: invalid size argument\n",
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__func__);
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return rval;
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}
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spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
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list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list)
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num_devices++;
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spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
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if ((job->request_payload.payload_len == sizeof(u32)) ||
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list_empty(&mrioc->tgtdev_list)) {
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sg_copy_from_buffer(job->request_payload.sg_list,
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job->request_payload.sg_cnt,
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&num_devices, sizeof(num_devices));
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return 0;
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}
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kern_entrylen = (num_devices - 1) * sizeof(*devmap_info);
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size = sizeof(*alltgt_info) + kern_entrylen;
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alltgt_info = kzalloc(size, GFP_KERNEL);
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if (!alltgt_info)
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return -ENOMEM;
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devmap_info = alltgt_info->dmi;
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memset((u8 *)devmap_info, 0xFF, (kern_entrylen + sizeof(*devmap_info)));
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spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
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list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list) {
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if (i < num_devices) {
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devmap_info[i].handle = tgtdev->dev_handle;
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devmap_info[i].perst_id = tgtdev->perst_id;
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if (tgtdev->host_exposed && tgtdev->starget) {
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devmap_info[i].target_id = tgtdev->starget->id;
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devmap_info[i].bus_id =
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tgtdev->starget->channel;
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}
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i++;
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}
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}
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num_devices = i;
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spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
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memcpy(&alltgt_info->num_devices, &num_devices, sizeof(num_devices));
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usr_entrylen = (job->request_payload.payload_len - sizeof(u32)) / sizeof(*devmap_info);
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usr_entrylen *= sizeof(*devmap_info);
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min_entrylen = min(usr_entrylen, kern_entrylen);
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if (min_entrylen && (!memcpy(&alltgt_info->dmi, devmap_info, min_entrylen))) {
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dprint_bsg_err(mrioc, "%s:%d: device map info copy failed\n",
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__func__, __LINE__);
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rval = -EFAULT;
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goto out;
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}
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sg_copy_from_buffer(job->request_payload.sg_list,
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job->request_payload.sg_cnt,
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alltgt_info, job->request_payload.payload_len);
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rval = 0;
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out:
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kfree(alltgt_info);
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return rval;
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}
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/**
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* mpi3mr_get_change_count - Get topology change count
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* @mrioc: Adapter instance reference
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* @job: BSG job reference
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*
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* This function copies the toplogy change count provided by the
|
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* driver in events and cached in the driver to the user
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* provided buffer for the specific controller.
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*
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* Return: 0 on success and proper error codes on failure
|
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*/
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static long mpi3mr_get_change_count(struct mpi3mr_ioc *mrioc,
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struct bsg_job *job)
|
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{
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struct mpi3mr_change_count chgcnt;
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memset(&chgcnt, 0, sizeof(chgcnt));
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chgcnt.change_count = mrioc->change_count;
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if (job->request_payload.payload_len >= sizeof(chgcnt)) {
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sg_copy_from_buffer(job->request_payload.sg_list,
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job->request_payload.sg_cnt,
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&chgcnt, sizeof(chgcnt));
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return 0;
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}
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return -EINVAL;
|
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}
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|
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/**
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* mpi3mr_bsg_adp_reset - Issue controller reset
|
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* @mrioc: Adapter instance reference
|
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* @job: BSG job reference
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*
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* This function identifies the user provided reset type and
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* issues approporiate reset to the controller and wait for that
|
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* to complete and reinitialize the controller and then returns
|
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*
|
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* Return: 0 on success and proper error codes on failure
|
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*/
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static long mpi3mr_bsg_adp_reset(struct mpi3mr_ioc *mrioc,
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struct bsg_job *job)
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{
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long rval = -EINVAL;
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u8 save_snapdump;
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struct mpi3mr_bsg_adp_reset adpreset;
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if (job->request_payload.payload_len !=
|
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sizeof(adpreset)) {
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dprint_bsg_err(mrioc, "%s: invalid size argument\n",
|
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__func__);
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goto out;
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}
|
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sg_copy_to_buffer(job->request_payload.sg_list,
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job->request_payload.sg_cnt,
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&adpreset, sizeof(adpreset));
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switch (adpreset.reset_type) {
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case MPI3MR_BSG_ADPRESET_SOFT:
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save_snapdump = 0;
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break;
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case MPI3MR_BSG_ADPRESET_DIAG_FAULT:
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save_snapdump = 1;
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break;
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default:
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dprint_bsg_err(mrioc, "%s: unknown reset_type(%d)\n",
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__func__, adpreset.reset_type);
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goto out;
|
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}
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|
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rval = mpi3mr_soft_reset_handler(mrioc, MPI3MR_RESET_FROM_APP,
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save_snapdump);
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|
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if (rval)
|
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dprint_bsg_err(mrioc,
|
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"%s: reset handler returned error(%ld) for reset type %d\n",
|
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__func__, rval, adpreset.reset_type);
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out:
|
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return rval;
|
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}
|
|
|
|
/**
|
|
* mpi3mr_bsg_populate_adpinfo - Get adapter info command handler
|
|
* @mrioc: Adapter instance reference
|
|
* @job: BSG job reference
|
|
*
|
|
* This function provides adapter information for the given
|
|
* controller
|
|
*
|
|
* Return: 0 on success and proper error codes on failure
|
|
*/
|
|
static long mpi3mr_bsg_populate_adpinfo(struct mpi3mr_ioc *mrioc,
|
|
struct bsg_job *job)
|
|
{
|
|
enum mpi3mr_iocstate ioc_state;
|
|
struct mpi3mr_bsg_in_adpinfo adpinfo;
|
|
|
|
memset(&adpinfo, 0, sizeof(adpinfo));
|
|
adpinfo.adp_type = MPI3MR_BSG_ADPTYPE_AVGFAMILY;
|
|
adpinfo.pci_dev_id = mrioc->pdev->device;
|
|
adpinfo.pci_dev_hw_rev = mrioc->pdev->revision;
|
|
adpinfo.pci_subsys_dev_id = mrioc->pdev->subsystem_device;
|
|
adpinfo.pci_subsys_ven_id = mrioc->pdev->subsystem_vendor;
|
|
adpinfo.pci_bus = mrioc->pdev->bus->number;
|
|
adpinfo.pci_dev = PCI_SLOT(mrioc->pdev->devfn);
|
|
adpinfo.pci_func = PCI_FUNC(mrioc->pdev->devfn);
|
|
adpinfo.pci_seg_id = pci_domain_nr(mrioc->pdev->bus);
|
|
adpinfo.app_intfc_ver = MPI3MR_IOCTL_VERSION;
|
|
|
|
ioc_state = mpi3mr_get_iocstate(mrioc);
|
|
if (ioc_state == MRIOC_STATE_UNRECOVERABLE)
|
|
adpinfo.adp_state = MPI3MR_BSG_ADPSTATE_UNRECOVERABLE;
|
|
else if ((mrioc->reset_in_progress) || (mrioc->stop_bsgs))
|
|
adpinfo.adp_state = MPI3MR_BSG_ADPSTATE_IN_RESET;
|
|
else if (ioc_state == MRIOC_STATE_FAULT)
|
|
adpinfo.adp_state = MPI3MR_BSG_ADPSTATE_FAULT;
|
|
else
|
|
adpinfo.adp_state = MPI3MR_BSG_ADPSTATE_OPERATIONAL;
|
|
|
|
memcpy((u8 *)&adpinfo.driver_info, (u8 *)&mrioc->driver_info,
|
|
sizeof(adpinfo.driver_info));
|
|
|
|
if (job->request_payload.payload_len >= sizeof(adpinfo)) {
|
|
sg_copy_from_buffer(job->request_payload.sg_list,
|
|
job->request_payload.sg_cnt,
|
|
&adpinfo, sizeof(adpinfo));
|
|
return 0;
|
|
}
|
|
return -EINVAL;
|
|
}
|
|
|
|
/**
|
|
* mpi3mr_bsg_process_drv_cmds - Driver Command handler
|
|
* @job: BSG job reference
|
|
*
|
|
* This function is the top level handler for driver commands,
|
|
* this does basic validation of the buffer and identifies the
|
|
* opcode and switches to correct sub handler.
|
|
*
|
|
* Return: 0 on success and proper error codes on failure
|
|
*/
|
|
static long mpi3mr_bsg_process_drv_cmds(struct bsg_job *job)
|
|
{
|
|
long rval = -EINVAL;
|
|
struct mpi3mr_ioc *mrioc = NULL;
|
|
struct mpi3mr_bsg_packet *bsg_req = NULL;
|
|
struct mpi3mr_bsg_drv_cmd *drvrcmd = NULL;
|
|
|
|
bsg_req = job->request;
|
|
drvrcmd = &bsg_req->cmd.drvrcmd;
|
|
|
|
mrioc = mpi3mr_bsg_verify_adapter(drvrcmd->mrioc_id);
|
|
if (!mrioc)
|
|
return -ENODEV;
|
|
|
|
if (drvrcmd->opcode == MPI3MR_DRVBSG_OPCODE_ADPINFO) {
|
|
rval = mpi3mr_bsg_populate_adpinfo(mrioc, job);
|
|
return rval;
|
|
}
|
|
|
|
if (mutex_lock_interruptible(&mrioc->bsg_cmds.mutex))
|
|
return -ERESTARTSYS;
|
|
|
|
switch (drvrcmd->opcode) {
|
|
case MPI3MR_DRVBSG_OPCODE_ADPRESET:
|
|
rval = mpi3mr_bsg_adp_reset(mrioc, job);
|
|
break;
|
|
case MPI3MR_DRVBSG_OPCODE_ALLTGTDEVINFO:
|
|
rval = mpi3mr_get_all_tgt_info(mrioc, job);
|
|
break;
|
|
case MPI3MR_DRVBSG_OPCODE_GETCHGCNT:
|
|
rval = mpi3mr_get_change_count(mrioc, job);
|
|
break;
|
|
case MPI3MR_DRVBSG_OPCODE_LOGDATAENABLE:
|
|
rval = mpi3mr_enable_logdata(mrioc, job);
|
|
break;
|
|
case MPI3MR_DRVBSG_OPCODE_GETLOGDATA:
|
|
rval = mpi3mr_get_logdata(mrioc, job);
|
|
break;
|
|
case MPI3MR_DRVBSG_OPCODE_PELENABLE:
|
|
rval = mpi3mr_bsg_pel_enable(mrioc, job);
|
|
break;
|
|
case MPI3MR_DRVBSG_OPCODE_UNKNOWN:
|
|
default:
|
|
pr_err("%s: unsupported driver command opcode %d\n",
|
|
MPI3MR_DRIVER_NAME, drvrcmd->opcode);
|
|
break;
|
|
}
|
|
mutex_unlock(&mrioc->bsg_cmds.mutex);
|
|
return rval;
|
|
}
|
|
|
|
/**
|
|
* mpi3mr_bsg_build_sgl - SGL construction for MPI commands
|
|
* @mpi_req: MPI request
|
|
* @sgl_offset: offset to start sgl in the MPI request
|
|
* @drv_bufs: DMA address of the buffers to be placed in sgl
|
|
* @bufcnt: Number of DMA buffers
|
|
* @is_rmc: Does the buffer list has management command buffer
|
|
* @is_rmr: Does the buffer list has management response buffer
|
|
* @num_datasges: Number of data buffers in the list
|
|
*
|
|
* This function places the DMA address of the given buffers in
|
|
* proper format as SGEs in the given MPI request.
|
|
*
|
|
* Return: Nothing
|
|
*/
|
|
static void mpi3mr_bsg_build_sgl(u8 *mpi_req, uint32_t sgl_offset,
|
|
struct mpi3mr_buf_map *drv_bufs, u8 bufcnt, u8 is_rmc,
|
|
u8 is_rmr, u8 num_datasges)
|
|
{
|
|
u8 *sgl = (mpi_req + sgl_offset), count = 0;
|
|
struct mpi3_mgmt_passthrough_request *rmgmt_req =
|
|
(struct mpi3_mgmt_passthrough_request *)mpi_req;
|
|
struct mpi3mr_buf_map *drv_buf_iter = drv_bufs;
|
|
u8 sgl_flags, sgl_flags_last;
|
|
|
|
sgl_flags = MPI3_SGE_FLAGS_ELEMENT_TYPE_SIMPLE |
|
|
MPI3_SGE_FLAGS_DLAS_SYSTEM | MPI3_SGE_FLAGS_END_OF_BUFFER;
|
|
sgl_flags_last = sgl_flags | MPI3_SGE_FLAGS_END_OF_LIST;
|
|
|
|
if (is_rmc) {
|
|
mpi3mr_add_sg_single(&rmgmt_req->command_sgl,
|
|
sgl_flags_last, drv_buf_iter->kern_buf_len,
|
|
drv_buf_iter->kern_buf_dma);
|
|
sgl = (u8 *)drv_buf_iter->kern_buf + drv_buf_iter->bsg_buf_len;
|
|
drv_buf_iter++;
|
|
count++;
|
|
if (is_rmr) {
|
|
mpi3mr_add_sg_single(&rmgmt_req->response_sgl,
|
|
sgl_flags_last, drv_buf_iter->kern_buf_len,
|
|
drv_buf_iter->kern_buf_dma);
|
|
drv_buf_iter++;
|
|
count++;
|
|
} else
|
|
mpi3mr_build_zero_len_sge(
|
|
&rmgmt_req->response_sgl);
|
|
}
|
|
if (!num_datasges) {
|
|
mpi3mr_build_zero_len_sge(sgl);
|
|
return;
|
|
}
|
|
for (; count < bufcnt; count++, drv_buf_iter++) {
|
|
if (drv_buf_iter->data_dir == DMA_NONE)
|
|
continue;
|
|
if (num_datasges == 1 || !is_rmc)
|
|
mpi3mr_add_sg_single(sgl, sgl_flags_last,
|
|
drv_buf_iter->kern_buf_len, drv_buf_iter->kern_buf_dma);
|
|
else
|
|
mpi3mr_add_sg_single(sgl, sgl_flags,
|
|
drv_buf_iter->kern_buf_len, drv_buf_iter->kern_buf_dma);
|
|
sgl += sizeof(struct mpi3_sge_common);
|
|
num_datasges--;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* mpi3mr_get_nvme_data_fmt - returns the NVMe data format
|
|
* @nvme_encap_request: NVMe encapsulated MPI request
|
|
*
|
|
* This function returns the type of the data format specified
|
|
* in user provided NVMe command in NVMe encapsulated request.
|
|
*
|
|
* Return: Data format of the NVMe command (PRP/SGL etc)
|
|
*/
|
|
static unsigned int mpi3mr_get_nvme_data_fmt(
|
|
struct mpi3_nvme_encapsulated_request *nvme_encap_request)
|
|
{
|
|
u8 format = 0;
|
|
|
|
format = ((nvme_encap_request->command[0] & 0xc000) >> 14);
|
|
return format;
|
|
|
|
}
|
|
|
|
/**
|
|
* mpi3mr_build_nvme_sgl - SGL constructor for NVME
|
|
* encapsulated request
|
|
* @mrioc: Adapter instance reference
|
|
* @nvme_encap_request: NVMe encapsulated MPI request
|
|
* @drv_bufs: DMA address of the buffers to be placed in sgl
|
|
* @bufcnt: Number of DMA buffers
|
|
*
|
|
* This function places the DMA address of the given buffers in
|
|
* proper format as SGEs in the given NVMe encapsulated request.
|
|
*
|
|
* Return: 0 on success, -1 on failure
|
|
*/
|
|
static int mpi3mr_build_nvme_sgl(struct mpi3mr_ioc *mrioc,
|
|
struct mpi3_nvme_encapsulated_request *nvme_encap_request,
|
|
struct mpi3mr_buf_map *drv_bufs, u8 bufcnt)
|
|
{
|
|
struct mpi3mr_nvme_pt_sge *nvme_sgl;
|
|
u64 sgl_ptr;
|
|
u8 count;
|
|
size_t length = 0;
|
|
struct mpi3mr_buf_map *drv_buf_iter = drv_bufs;
|
|
u64 sgemod_mask = ((u64)((mrioc->facts.sge_mod_mask) <<
|
|
mrioc->facts.sge_mod_shift) << 32);
|
|
u64 sgemod_val = ((u64)(mrioc->facts.sge_mod_value) <<
|
|
mrioc->facts.sge_mod_shift) << 32;
|
|
|
|
/*
|
|
* Not all commands require a data transfer. If no data, just return
|
|
* without constructing any sgl.
|
|
*/
|
|
for (count = 0; count < bufcnt; count++, drv_buf_iter++) {
|
|
if (drv_buf_iter->data_dir == DMA_NONE)
|
|
continue;
|
|
sgl_ptr = (u64)drv_buf_iter->kern_buf_dma;
|
|
length = drv_buf_iter->kern_buf_len;
|
|
break;
|
|
}
|
|
if (!length)
|
|
return 0;
|
|
|
|
if (sgl_ptr & sgemod_mask) {
|
|
dprint_bsg_err(mrioc,
|
|
"%s: SGL address collides with SGE modifier\n",
|
|
__func__);
|
|
return -1;
|
|
}
|
|
|
|
sgl_ptr &= ~sgemod_mask;
|
|
sgl_ptr |= sgemod_val;
|
|
nvme_sgl = (struct mpi3mr_nvme_pt_sge *)
|
|
((u8 *)(nvme_encap_request->command) + MPI3MR_NVME_CMD_SGL_OFFSET);
|
|
memset(nvme_sgl, 0, sizeof(struct mpi3mr_nvme_pt_sge));
|
|
nvme_sgl->base_addr = sgl_ptr;
|
|
nvme_sgl->length = length;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* mpi3mr_build_nvme_prp - PRP constructor for NVME
|
|
* encapsulated request
|
|
* @mrioc: Adapter instance reference
|
|
* @nvme_encap_request: NVMe encapsulated MPI request
|
|
* @drv_bufs: DMA address of the buffers to be placed in SGL
|
|
* @bufcnt: Number of DMA buffers
|
|
*
|
|
* This function places the DMA address of the given buffers in
|
|
* proper format as PRP entries in the given NVMe encapsulated
|
|
* request.
|
|
*
|
|
* Return: 0 on success, -1 on failure
|
|
*/
|
|
static int mpi3mr_build_nvme_prp(struct mpi3mr_ioc *mrioc,
|
|
struct mpi3_nvme_encapsulated_request *nvme_encap_request,
|
|
struct mpi3mr_buf_map *drv_bufs, u8 bufcnt)
|
|
{
|
|
int prp_size = MPI3MR_NVME_PRP_SIZE;
|
|
__le64 *prp_entry, *prp1_entry, *prp2_entry;
|
|
__le64 *prp_page;
|
|
dma_addr_t prp_entry_dma, prp_page_dma, dma_addr;
|
|
u32 offset, entry_len, dev_pgsz;
|
|
u32 page_mask_result, page_mask;
|
|
size_t length = 0;
|
|
u8 count;
|
|
struct mpi3mr_buf_map *drv_buf_iter = drv_bufs;
|
|
u64 sgemod_mask = ((u64)((mrioc->facts.sge_mod_mask) <<
|
|
mrioc->facts.sge_mod_shift) << 32);
|
|
u64 sgemod_val = ((u64)(mrioc->facts.sge_mod_value) <<
|
|
mrioc->facts.sge_mod_shift) << 32;
|
|
u16 dev_handle = nvme_encap_request->dev_handle;
|
|
struct mpi3mr_tgt_dev *tgtdev;
|
|
|
|
tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, dev_handle);
|
|
if (!tgtdev) {
|
|
dprint_bsg_err(mrioc, "%s: invalid device handle 0x%04x\n",
|
|
__func__, dev_handle);
|
|
return -1;
|
|
}
|
|
|
|
if (tgtdev->dev_spec.pcie_inf.pgsz == 0) {
|
|
dprint_bsg_err(mrioc,
|
|
"%s: NVMe device page size is zero for handle 0x%04x\n",
|
|
__func__, dev_handle);
|
|
mpi3mr_tgtdev_put(tgtdev);
|
|
return -1;
|
|
}
|
|
|
|
dev_pgsz = 1 << (tgtdev->dev_spec.pcie_inf.pgsz);
|
|
mpi3mr_tgtdev_put(tgtdev);
|
|
|
|
/*
|
|
* Not all commands require a data transfer. If no data, just return
|
|
* without constructing any PRP.
|
|
*/
|
|
for (count = 0; count < bufcnt; count++, drv_buf_iter++) {
|
|
if (drv_buf_iter->data_dir == DMA_NONE)
|
|
continue;
|
|
dma_addr = drv_buf_iter->kern_buf_dma;
|
|
length = drv_buf_iter->kern_buf_len;
|
|
break;
|
|
}
|
|
|
|
if (!length)
|
|
return 0;
|
|
|
|
mrioc->prp_sz = 0;
|
|
mrioc->prp_list_virt = dma_alloc_coherent(&mrioc->pdev->dev,
|
|
dev_pgsz, &mrioc->prp_list_dma, GFP_KERNEL);
|
|
|
|
if (!mrioc->prp_list_virt)
|
|
return -1;
|
|
mrioc->prp_sz = dev_pgsz;
|
|
|
|
/*
|
|
* Set pointers to PRP1 and PRP2, which are in the NVMe command.
|
|
* PRP1 is located at a 24 byte offset from the start of the NVMe
|
|
* command. Then set the current PRP entry pointer to PRP1.
|
|
*/
|
|
prp1_entry = (__le64 *)((u8 *)(nvme_encap_request->command) +
|
|
MPI3MR_NVME_CMD_PRP1_OFFSET);
|
|
prp2_entry = (__le64 *)((u8 *)(nvme_encap_request->command) +
|
|
MPI3MR_NVME_CMD_PRP2_OFFSET);
|
|
prp_entry = prp1_entry;
|
|
/*
|
|
* For the PRP entries, use the specially allocated buffer of
|
|
* contiguous memory.
|
|
*/
|
|
prp_page = (__le64 *)mrioc->prp_list_virt;
|
|
prp_page_dma = mrioc->prp_list_dma;
|
|
|
|
/*
|
|
* Check if we are within 1 entry of a page boundary we don't
|
|
* want our first entry to be a PRP List entry.
|
|
*/
|
|
page_mask = dev_pgsz - 1;
|
|
page_mask_result = (uintptr_t)((u8 *)prp_page + prp_size) & page_mask;
|
|
if (!page_mask_result) {
|
|
dprint_bsg_err(mrioc, "%s: PRP page is not page aligned\n",
|
|
__func__);
|
|
goto err_out;
|
|
}
|
|
|
|
/*
|
|
* Set PRP physical pointer, which initially points to the current PRP
|
|
* DMA memory page.
|
|
*/
|
|
prp_entry_dma = prp_page_dma;
|
|
|
|
|
|
/* Loop while the length is not zero. */
|
|
while (length) {
|
|
page_mask_result = (prp_entry_dma + prp_size) & page_mask;
|
|
if (!page_mask_result && (length > dev_pgsz)) {
|
|
dprint_bsg_err(mrioc,
|
|
"%s: single PRP page is not sufficient\n",
|
|
__func__);
|
|
goto err_out;
|
|
}
|
|
|
|
/* Need to handle if entry will be part of a page. */
|
|
offset = dma_addr & page_mask;
|
|
entry_len = dev_pgsz - offset;
|
|
|
|
if (prp_entry == prp1_entry) {
|
|
/*
|
|
* Must fill in the first PRP pointer (PRP1) before
|
|
* moving on.
|
|
*/
|
|
*prp1_entry = cpu_to_le64(dma_addr);
|
|
if (*prp1_entry & sgemod_mask) {
|
|
dprint_bsg_err(mrioc,
|
|
"%s: PRP1 address collides with SGE modifier\n",
|
|
__func__);
|
|
goto err_out;
|
|
}
|
|
*prp1_entry &= ~sgemod_mask;
|
|
*prp1_entry |= sgemod_val;
|
|
|
|
/*
|
|
* Now point to the second PRP entry within the
|
|
* command (PRP2).
|
|
*/
|
|
prp_entry = prp2_entry;
|
|
} else if (prp_entry == prp2_entry) {
|
|
/*
|
|
* Should the PRP2 entry be a PRP List pointer or just
|
|
* a regular PRP pointer? If there is more than one
|
|
* more page of data, must use a PRP List pointer.
|
|
*/
|
|
if (length > dev_pgsz) {
|
|
/*
|
|
* PRP2 will contain a PRP List pointer because
|
|
* more PRP's are needed with this command. The
|
|
* list will start at the beginning of the
|
|
* contiguous buffer.
|
|
*/
|
|
*prp2_entry = cpu_to_le64(prp_entry_dma);
|
|
if (*prp2_entry & sgemod_mask) {
|
|
dprint_bsg_err(mrioc,
|
|
"%s: PRP list address collides with SGE modifier\n",
|
|
__func__);
|
|
goto err_out;
|
|
}
|
|
*prp2_entry &= ~sgemod_mask;
|
|
*prp2_entry |= sgemod_val;
|
|
|
|
/*
|
|
* The next PRP Entry will be the start of the
|
|
* first PRP List.
|
|
*/
|
|
prp_entry = prp_page;
|
|
continue;
|
|
} else {
|
|
/*
|
|
* After this, the PRP Entries are complete.
|
|
* This command uses 2 PRP's and no PRP list.
|
|
*/
|
|
*prp2_entry = cpu_to_le64(dma_addr);
|
|
if (*prp2_entry & sgemod_mask) {
|
|
dprint_bsg_err(mrioc,
|
|
"%s: PRP2 collides with SGE modifier\n",
|
|
__func__);
|
|
goto err_out;
|
|
}
|
|
*prp2_entry &= ~sgemod_mask;
|
|
*prp2_entry |= sgemod_val;
|
|
}
|
|
} else {
|
|
/*
|
|
* Put entry in list and bump the addresses.
|
|
*
|
|
* After PRP1 and PRP2 are filled in, this will fill in
|
|
* all remaining PRP entries in a PRP List, one per
|
|
* each time through the loop.
|
|
*/
|
|
*prp_entry = cpu_to_le64(dma_addr);
|
|
if (*prp1_entry & sgemod_mask) {
|
|
dprint_bsg_err(mrioc,
|
|
"%s: PRP address collides with SGE modifier\n",
|
|
__func__);
|
|
goto err_out;
|
|
}
|
|
*prp_entry &= ~sgemod_mask;
|
|
*prp_entry |= sgemod_val;
|
|
prp_entry++;
|
|
prp_entry_dma++;
|
|
}
|
|
|
|
/*
|
|
* Bump the phys address of the command's data buffer by the
|
|
* entry_len.
|
|
*/
|
|
dma_addr += entry_len;
|
|
|
|
/* decrement length accounting for last partial page. */
|
|
if (entry_len > length)
|
|
length = 0;
|
|
else
|
|
length -= entry_len;
|
|
}
|
|
return 0;
|
|
err_out:
|
|
if (mrioc->prp_list_virt) {
|
|
dma_free_coherent(&mrioc->pdev->dev, mrioc->prp_sz,
|
|
mrioc->prp_list_virt, mrioc->prp_list_dma);
|
|
mrioc->prp_list_virt = NULL;
|
|
}
|
|
return -1;
|
|
}
|
|
/**
|
|
* mpi3mr_bsg_process_mpt_cmds - MPI Pass through BSG handler
|
|
* @job: BSG job reference
|
|
*
|
|
* This function is the top level handler for MPI Pass through
|
|
* command, this does basic validation of the input data buffers,
|
|
* identifies the given buffer types and MPI command, allocates
|
|
* DMAable memory for user given buffers, construstcs SGL
|
|
* properly and passes the command to the firmware.
|
|
*
|
|
* Once the MPI command is completed the driver copies the data
|
|
* if any and reply, sense information to user provided buffers.
|
|
* If the command is timed out then issues controller reset
|
|
* prior to returning.
|
|
*
|
|
* Return: 0 on success and proper error codes on failure
|
|
*/
|
|
|
|
static long mpi3mr_bsg_process_mpt_cmds(struct bsg_job *job, unsigned int *reply_payload_rcv_len)
|
|
{
|
|
long rval = -EINVAL;
|
|
|
|
struct mpi3mr_ioc *mrioc = NULL;
|
|
u8 *mpi_req = NULL, *sense_buff_k = NULL;
|
|
u8 mpi_msg_size = 0;
|
|
struct mpi3mr_bsg_packet *bsg_req = NULL;
|
|
struct mpi3mr_bsg_mptcmd *karg;
|
|
struct mpi3mr_buf_entry *buf_entries = NULL;
|
|
struct mpi3mr_buf_map *drv_bufs = NULL, *drv_buf_iter = NULL;
|
|
u8 count, bufcnt = 0, is_rmcb = 0, is_rmrb = 0, din_cnt = 0, dout_cnt = 0;
|
|
u8 invalid_be = 0, erb_offset = 0xFF, mpirep_offset = 0xFF, sg_entries = 0;
|
|
u8 block_io = 0, resp_code = 0, nvme_fmt = 0;
|
|
struct mpi3_request_header *mpi_header = NULL;
|
|
struct mpi3_status_reply_descriptor *status_desc;
|
|
struct mpi3_scsi_task_mgmt_request *tm_req;
|
|
u32 erbsz = MPI3MR_SENSE_BUF_SZ, tmplen;
|
|
u16 dev_handle;
|
|
struct mpi3mr_tgt_dev *tgtdev;
|
|
struct mpi3mr_stgt_priv_data *stgt_priv = NULL;
|
|
struct mpi3mr_bsg_in_reply_buf *bsg_reply_buf = NULL;
|
|
u32 din_size = 0, dout_size = 0;
|
|
u8 *din_buf = NULL, *dout_buf = NULL;
|
|
u8 *sgl_iter = NULL, *sgl_din_iter = NULL, *sgl_dout_iter = NULL;
|
|
|
|
bsg_req = job->request;
|
|
karg = (struct mpi3mr_bsg_mptcmd *)&bsg_req->cmd.mptcmd;
|
|
|
|
mrioc = mpi3mr_bsg_verify_adapter(karg->mrioc_id);
|
|
if (!mrioc)
|
|
return -ENODEV;
|
|
|
|
if (karg->timeout < MPI3MR_APP_DEFAULT_TIMEOUT)
|
|
karg->timeout = MPI3MR_APP_DEFAULT_TIMEOUT;
|
|
|
|
mpi_req = kzalloc(MPI3MR_ADMIN_REQ_FRAME_SZ, GFP_KERNEL);
|
|
if (!mpi_req)
|
|
return -ENOMEM;
|
|
mpi_header = (struct mpi3_request_header *)mpi_req;
|
|
|
|
bufcnt = karg->buf_entry_list.num_of_entries;
|
|
drv_bufs = kzalloc((sizeof(*drv_bufs) * bufcnt), GFP_KERNEL);
|
|
if (!drv_bufs) {
|
|
rval = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
dout_buf = kzalloc(job->request_payload.payload_len,
|
|
GFP_KERNEL);
|
|
if (!dout_buf) {
|
|
rval = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
din_buf = kzalloc(job->reply_payload.payload_len,
|
|
GFP_KERNEL);
|
|
if (!din_buf) {
|
|
rval = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
sg_copy_to_buffer(job->request_payload.sg_list,
|
|
job->request_payload.sg_cnt,
|
|
dout_buf, job->request_payload.payload_len);
|
|
|
|
buf_entries = karg->buf_entry_list.buf_entry;
|
|
sgl_din_iter = din_buf;
|
|
sgl_dout_iter = dout_buf;
|
|
drv_buf_iter = drv_bufs;
|
|
|
|
for (count = 0; count < bufcnt; count++, buf_entries++, drv_buf_iter++) {
|
|
|
|
if (sgl_dout_iter > (dout_buf + job->request_payload.payload_len)) {
|
|
dprint_bsg_err(mrioc, "%s: data_out buffer length mismatch\n",
|
|
__func__);
|
|
rval = -EINVAL;
|
|
goto out;
|
|
}
|
|
if (sgl_din_iter > (din_buf + job->reply_payload.payload_len)) {
|
|
dprint_bsg_err(mrioc, "%s: data_in buffer length mismatch\n",
|
|
__func__);
|
|
rval = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
switch (buf_entries->buf_type) {
|
|
case MPI3MR_BSG_BUFTYPE_RAIDMGMT_CMD:
|
|
sgl_iter = sgl_dout_iter;
|
|
sgl_dout_iter += buf_entries->buf_len;
|
|
drv_buf_iter->data_dir = DMA_TO_DEVICE;
|
|
is_rmcb = 1;
|
|
if (count != 0)
|
|
invalid_be = 1;
|
|
break;
|
|
case MPI3MR_BSG_BUFTYPE_RAIDMGMT_RESP:
|
|
sgl_iter = sgl_din_iter;
|
|
sgl_din_iter += buf_entries->buf_len;
|
|
drv_buf_iter->data_dir = DMA_FROM_DEVICE;
|
|
is_rmrb = 1;
|
|
if (count != 1 || !is_rmcb)
|
|
invalid_be = 1;
|
|
break;
|
|
case MPI3MR_BSG_BUFTYPE_DATA_IN:
|
|
sgl_iter = sgl_din_iter;
|
|
sgl_din_iter += buf_entries->buf_len;
|
|
drv_buf_iter->data_dir = DMA_FROM_DEVICE;
|
|
din_cnt++;
|
|
din_size += drv_buf_iter->bsg_buf_len;
|
|
if ((din_cnt > 1) && !is_rmcb)
|
|
invalid_be = 1;
|
|
break;
|
|
case MPI3MR_BSG_BUFTYPE_DATA_OUT:
|
|
sgl_iter = sgl_dout_iter;
|
|
sgl_dout_iter += buf_entries->buf_len;
|
|
drv_buf_iter->data_dir = DMA_TO_DEVICE;
|
|
dout_cnt++;
|
|
dout_size += drv_buf_iter->bsg_buf_len;
|
|
if ((dout_cnt > 1) && !is_rmcb)
|
|
invalid_be = 1;
|
|
break;
|
|
case MPI3MR_BSG_BUFTYPE_MPI_REPLY:
|
|
sgl_iter = sgl_din_iter;
|
|
sgl_din_iter += buf_entries->buf_len;
|
|
drv_buf_iter->data_dir = DMA_NONE;
|
|
mpirep_offset = count;
|
|
break;
|
|
case MPI3MR_BSG_BUFTYPE_ERR_RESPONSE:
|
|
sgl_iter = sgl_din_iter;
|
|
sgl_din_iter += buf_entries->buf_len;
|
|
drv_buf_iter->data_dir = DMA_NONE;
|
|
erb_offset = count;
|
|
break;
|
|
case MPI3MR_BSG_BUFTYPE_MPI_REQUEST:
|
|
sgl_iter = sgl_dout_iter;
|
|
sgl_dout_iter += buf_entries->buf_len;
|
|
drv_buf_iter->data_dir = DMA_NONE;
|
|
mpi_msg_size = buf_entries->buf_len;
|
|
if ((!mpi_msg_size || (mpi_msg_size % 4)) ||
|
|
(mpi_msg_size > MPI3MR_ADMIN_REQ_FRAME_SZ)) {
|
|
dprint_bsg_err(mrioc, "%s: invalid MPI message size\n",
|
|
__func__);
|
|
rval = -EINVAL;
|
|
goto out;
|
|
}
|
|
memcpy(mpi_req, sgl_iter, buf_entries->buf_len);
|
|
break;
|
|
default:
|
|
invalid_be = 1;
|
|
break;
|
|
}
|
|
if (invalid_be) {
|
|
dprint_bsg_err(mrioc, "%s: invalid buffer entries passed\n",
|
|
__func__);
|
|
rval = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
drv_buf_iter->bsg_buf = sgl_iter;
|
|
drv_buf_iter->bsg_buf_len = buf_entries->buf_len;
|
|
|
|
}
|
|
if (!is_rmcb && (dout_cnt || din_cnt)) {
|
|
sg_entries = dout_cnt + din_cnt;
|
|
if (((mpi_msg_size) + (sg_entries *
|
|
sizeof(struct mpi3_sge_common))) > MPI3MR_ADMIN_REQ_FRAME_SZ) {
|
|
dprint_bsg_err(mrioc,
|
|
"%s:%d: invalid message size passed\n",
|
|
__func__, __LINE__);
|
|
rval = -EINVAL;
|
|
goto out;
|
|
}
|
|
}
|
|
if (din_size > MPI3MR_MAX_APP_XFER_SIZE) {
|
|
dprint_bsg_err(mrioc,
|
|
"%s:%d: invalid data transfer size passed for function 0x%x din_size=%d\n",
|
|
__func__, __LINE__, mpi_header->function, din_size);
|
|
rval = -EINVAL;
|
|
goto out;
|
|
}
|
|
if (dout_size > MPI3MR_MAX_APP_XFER_SIZE) {
|
|
dprint_bsg_err(mrioc,
|
|
"%s:%d: invalid data transfer size passed for function 0x%x dout_size = %d\n",
|
|
__func__, __LINE__, mpi_header->function, dout_size);
|
|
rval = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
drv_buf_iter = drv_bufs;
|
|
for (count = 0; count < bufcnt; count++, drv_buf_iter++) {
|
|
if (drv_buf_iter->data_dir == DMA_NONE)
|
|
continue;
|
|
|
|
drv_buf_iter->kern_buf_len = drv_buf_iter->bsg_buf_len;
|
|
if (is_rmcb && !count)
|
|
drv_buf_iter->kern_buf_len += ((dout_cnt + din_cnt) *
|
|
sizeof(struct mpi3_sge_common));
|
|
|
|
if (!drv_buf_iter->kern_buf_len)
|
|
continue;
|
|
|
|
drv_buf_iter->kern_buf = dma_alloc_coherent(&mrioc->pdev->dev,
|
|
drv_buf_iter->kern_buf_len, &drv_buf_iter->kern_buf_dma,
|
|
GFP_KERNEL);
|
|
if (!drv_buf_iter->kern_buf) {
|
|
rval = -ENOMEM;
|
|
goto out;
|
|
}
|
|
if (drv_buf_iter->data_dir == DMA_TO_DEVICE) {
|
|
tmplen = min(drv_buf_iter->kern_buf_len,
|
|
drv_buf_iter->bsg_buf_len);
|
|
memcpy(drv_buf_iter->kern_buf, drv_buf_iter->bsg_buf, tmplen);
|
|
}
|
|
}
|
|
|
|
if (erb_offset != 0xFF) {
|
|
sense_buff_k = kzalloc(erbsz, GFP_KERNEL);
|
|
if (!sense_buff_k) {
|
|
rval = -ENOMEM;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
if (mutex_lock_interruptible(&mrioc->bsg_cmds.mutex)) {
|
|
rval = -ERESTARTSYS;
|
|
goto out;
|
|
}
|
|
if (mrioc->bsg_cmds.state & MPI3MR_CMD_PENDING) {
|
|
rval = -EAGAIN;
|
|
dprint_bsg_err(mrioc, "%s: command is in use\n", __func__);
|
|
mutex_unlock(&mrioc->bsg_cmds.mutex);
|
|
goto out;
|
|
}
|
|
if (mrioc->unrecoverable) {
|
|
dprint_bsg_err(mrioc, "%s: unrecoverable controller\n",
|
|
__func__);
|
|
rval = -EFAULT;
|
|
mutex_unlock(&mrioc->bsg_cmds.mutex);
|
|
goto out;
|
|
}
|
|
if (mrioc->reset_in_progress) {
|
|
dprint_bsg_err(mrioc, "%s: reset in progress\n", __func__);
|
|
rval = -EAGAIN;
|
|
mutex_unlock(&mrioc->bsg_cmds.mutex);
|
|
goto out;
|
|
}
|
|
if (mrioc->stop_bsgs) {
|
|
dprint_bsg_err(mrioc, "%s: bsgs are blocked\n", __func__);
|
|
rval = -EAGAIN;
|
|
mutex_unlock(&mrioc->bsg_cmds.mutex);
|
|
goto out;
|
|
}
|
|
|
|
if (mpi_header->function == MPI3_BSG_FUNCTION_NVME_ENCAPSULATED) {
|
|
nvme_fmt = mpi3mr_get_nvme_data_fmt(
|
|
(struct mpi3_nvme_encapsulated_request *)mpi_req);
|
|
if (nvme_fmt == MPI3MR_NVME_DATA_FORMAT_PRP) {
|
|
if (mpi3mr_build_nvme_prp(mrioc,
|
|
(struct mpi3_nvme_encapsulated_request *)mpi_req,
|
|
drv_bufs, bufcnt)) {
|
|
rval = -ENOMEM;
|
|
mutex_unlock(&mrioc->bsg_cmds.mutex);
|
|
goto out;
|
|
}
|
|
} else if (nvme_fmt == MPI3MR_NVME_DATA_FORMAT_SGL1 ||
|
|
nvme_fmt == MPI3MR_NVME_DATA_FORMAT_SGL2) {
|
|
if (mpi3mr_build_nvme_sgl(mrioc,
|
|
(struct mpi3_nvme_encapsulated_request *)mpi_req,
|
|
drv_bufs, bufcnt)) {
|
|
rval = -EINVAL;
|
|
mutex_unlock(&mrioc->bsg_cmds.mutex);
|
|
goto out;
|
|
}
|
|
} else {
|
|
dprint_bsg_err(mrioc,
|
|
"%s:invalid NVMe command format\n", __func__);
|
|
rval = -EINVAL;
|
|
mutex_unlock(&mrioc->bsg_cmds.mutex);
|
|
goto out;
|
|
}
|
|
} else {
|
|
mpi3mr_bsg_build_sgl(mpi_req, (mpi_msg_size),
|
|
drv_bufs, bufcnt, is_rmcb, is_rmrb,
|
|
(dout_cnt + din_cnt));
|
|
}
|
|
|
|
if (mpi_header->function == MPI3_BSG_FUNCTION_SCSI_TASK_MGMT) {
|
|
tm_req = (struct mpi3_scsi_task_mgmt_request *)mpi_req;
|
|
if (tm_req->task_type !=
|
|
MPI3_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
|
|
dev_handle = tm_req->dev_handle;
|
|
block_io = 1;
|
|
}
|
|
}
|
|
if (block_io) {
|
|
tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, dev_handle);
|
|
if (tgtdev && tgtdev->starget && tgtdev->starget->hostdata) {
|
|
stgt_priv = (struct mpi3mr_stgt_priv_data *)
|
|
tgtdev->starget->hostdata;
|
|
atomic_inc(&stgt_priv->block_io);
|
|
mpi3mr_tgtdev_put(tgtdev);
|
|
}
|
|
}
|
|
|
|
mrioc->bsg_cmds.state = MPI3MR_CMD_PENDING;
|
|
mrioc->bsg_cmds.is_waiting = 1;
|
|
mrioc->bsg_cmds.callback = NULL;
|
|
mrioc->bsg_cmds.is_sense = 0;
|
|
mrioc->bsg_cmds.sensebuf = sense_buff_k;
|
|
memset(mrioc->bsg_cmds.reply, 0, mrioc->reply_sz);
|
|
mpi_header->host_tag = cpu_to_le16(MPI3MR_HOSTTAG_BSG_CMDS);
|
|
if (mrioc->logging_level & MPI3_DEBUG_BSG_INFO) {
|
|
dprint_bsg_info(mrioc,
|
|
"%s: posting bsg request to the controller\n", __func__);
|
|
dprint_dump(mpi_req, MPI3MR_ADMIN_REQ_FRAME_SZ,
|
|
"bsg_mpi3_req");
|
|
if (mpi_header->function == MPI3_BSG_FUNCTION_MGMT_PASSTHROUGH) {
|
|
drv_buf_iter = &drv_bufs[0];
|
|
dprint_dump(drv_buf_iter->kern_buf,
|
|
drv_buf_iter->kern_buf_len, "mpi3_mgmt_req");
|
|
}
|
|
}
|
|
|
|
init_completion(&mrioc->bsg_cmds.done);
|
|
rval = mpi3mr_admin_request_post(mrioc, mpi_req,
|
|
MPI3MR_ADMIN_REQ_FRAME_SZ, 0);
|
|
|
|
|
|
if (rval) {
|
|
mrioc->bsg_cmds.is_waiting = 0;
|
|
dprint_bsg_err(mrioc,
|
|
"%s: posting bsg request is failed\n", __func__);
|
|
rval = -EAGAIN;
|
|
goto out_unlock;
|
|
}
|
|
wait_for_completion_timeout(&mrioc->bsg_cmds.done,
|
|
(karg->timeout * HZ));
|
|
if (block_io && stgt_priv)
|
|
atomic_dec(&stgt_priv->block_io);
|
|
if (!(mrioc->bsg_cmds.state & MPI3MR_CMD_COMPLETE)) {
|
|
mrioc->bsg_cmds.is_waiting = 0;
|
|
rval = -EAGAIN;
|
|
if (mrioc->bsg_cmds.state & MPI3MR_CMD_RESET)
|
|
goto out_unlock;
|
|
dprint_bsg_err(mrioc,
|
|
"%s: bsg request timedout after %d seconds\n", __func__,
|
|
karg->timeout);
|
|
if (mrioc->logging_level & MPI3_DEBUG_BSG_ERROR) {
|
|
dprint_dump(mpi_req, MPI3MR_ADMIN_REQ_FRAME_SZ,
|
|
"bsg_mpi3_req");
|
|
if (mpi_header->function ==
|
|
MPI3_BSG_FUNCTION_MGMT_PASSTHROUGH) {
|
|
drv_buf_iter = &drv_bufs[0];
|
|
dprint_dump(drv_buf_iter->kern_buf,
|
|
drv_buf_iter->kern_buf_len, "mpi3_mgmt_req");
|
|
}
|
|
}
|
|
|
|
if ((mpi_header->function == MPI3_BSG_FUNCTION_NVME_ENCAPSULATED) ||
|
|
(mpi_header->function == MPI3_BSG_FUNCTION_SCSI_IO))
|
|
mpi3mr_issue_tm(mrioc,
|
|
MPI3_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
|
|
mpi_header->function_dependent, 0,
|
|
MPI3MR_HOSTTAG_BLK_TMS, MPI3MR_RESETTM_TIMEOUT,
|
|
&mrioc->host_tm_cmds, &resp_code, NULL);
|
|
if (!(mrioc->bsg_cmds.state & MPI3MR_CMD_COMPLETE) &&
|
|
!(mrioc->bsg_cmds.state & MPI3MR_CMD_RESET))
|
|
mpi3mr_soft_reset_handler(mrioc,
|
|
MPI3MR_RESET_FROM_APP_TIMEOUT, 1);
|
|
goto out_unlock;
|
|
}
|
|
dprint_bsg_info(mrioc, "%s: bsg request is completed\n", __func__);
|
|
|
|
if (mrioc->prp_list_virt) {
|
|
dma_free_coherent(&mrioc->pdev->dev, mrioc->prp_sz,
|
|
mrioc->prp_list_virt, mrioc->prp_list_dma);
|
|
mrioc->prp_list_virt = NULL;
|
|
}
|
|
|
|
if ((mrioc->bsg_cmds.ioc_status & MPI3_IOCSTATUS_STATUS_MASK)
|
|
!= MPI3_IOCSTATUS_SUCCESS) {
|
|
dprint_bsg_info(mrioc,
|
|
"%s: command failed, ioc_status(0x%04x) log_info(0x%08x)\n",
|
|
__func__,
|
|
(mrioc->bsg_cmds.ioc_status & MPI3_IOCSTATUS_STATUS_MASK),
|
|
mrioc->bsg_cmds.ioc_loginfo);
|
|
}
|
|
|
|
if ((mpirep_offset != 0xFF) &&
|
|
drv_bufs[mpirep_offset].bsg_buf_len) {
|
|
drv_buf_iter = &drv_bufs[mpirep_offset];
|
|
drv_buf_iter->kern_buf_len = (sizeof(*bsg_reply_buf) - 1 +
|
|
mrioc->reply_sz);
|
|
bsg_reply_buf = kzalloc(drv_buf_iter->kern_buf_len, GFP_KERNEL);
|
|
|
|
if (!bsg_reply_buf) {
|
|
rval = -ENOMEM;
|
|
goto out_unlock;
|
|
}
|
|
if (mrioc->bsg_cmds.state & MPI3MR_CMD_REPLY_VALID) {
|
|
bsg_reply_buf->mpi_reply_type =
|
|
MPI3MR_BSG_MPI_REPLY_BUFTYPE_ADDRESS;
|
|
memcpy(bsg_reply_buf->reply_buf,
|
|
mrioc->bsg_cmds.reply, mrioc->reply_sz);
|
|
} else {
|
|
bsg_reply_buf->mpi_reply_type =
|
|
MPI3MR_BSG_MPI_REPLY_BUFTYPE_STATUS;
|
|
status_desc = (struct mpi3_status_reply_descriptor *)
|
|
bsg_reply_buf->reply_buf;
|
|
status_desc->ioc_status = mrioc->bsg_cmds.ioc_status;
|
|
status_desc->ioc_log_info = mrioc->bsg_cmds.ioc_loginfo;
|
|
}
|
|
tmplen = min(drv_buf_iter->kern_buf_len,
|
|
drv_buf_iter->bsg_buf_len);
|
|
memcpy(drv_buf_iter->bsg_buf, bsg_reply_buf, tmplen);
|
|
}
|
|
|
|
if (erb_offset != 0xFF && mrioc->bsg_cmds.sensebuf &&
|
|
mrioc->bsg_cmds.is_sense) {
|
|
drv_buf_iter = &drv_bufs[erb_offset];
|
|
tmplen = min(erbsz, drv_buf_iter->bsg_buf_len);
|
|
memcpy(drv_buf_iter->bsg_buf, sense_buff_k, tmplen);
|
|
}
|
|
|
|
drv_buf_iter = drv_bufs;
|
|
for (count = 0; count < bufcnt; count++, drv_buf_iter++) {
|
|
if (drv_buf_iter->data_dir == DMA_NONE)
|
|
continue;
|
|
if (drv_buf_iter->data_dir == DMA_FROM_DEVICE) {
|
|
tmplen = min(drv_buf_iter->kern_buf_len,
|
|
drv_buf_iter->bsg_buf_len);
|
|
memcpy(drv_buf_iter->bsg_buf,
|
|
drv_buf_iter->kern_buf, tmplen);
|
|
}
|
|
}
|
|
|
|
out_unlock:
|
|
if (din_buf) {
|
|
*reply_payload_rcv_len =
|
|
sg_copy_from_buffer(job->reply_payload.sg_list,
|
|
job->reply_payload.sg_cnt,
|
|
din_buf, job->reply_payload.payload_len);
|
|
}
|
|
mrioc->bsg_cmds.is_sense = 0;
|
|
mrioc->bsg_cmds.sensebuf = NULL;
|
|
mrioc->bsg_cmds.state = MPI3MR_CMD_NOTUSED;
|
|
mutex_unlock(&mrioc->bsg_cmds.mutex);
|
|
out:
|
|
kfree(sense_buff_k);
|
|
kfree(dout_buf);
|
|
kfree(din_buf);
|
|
kfree(mpi_req);
|
|
if (drv_bufs) {
|
|
drv_buf_iter = drv_bufs;
|
|
for (count = 0; count < bufcnt; count++, drv_buf_iter++) {
|
|
if (drv_buf_iter->kern_buf && drv_buf_iter->kern_buf_dma)
|
|
dma_free_coherent(&mrioc->pdev->dev,
|
|
drv_buf_iter->kern_buf_len,
|
|
drv_buf_iter->kern_buf,
|
|
drv_buf_iter->kern_buf_dma);
|
|
}
|
|
kfree(drv_bufs);
|
|
}
|
|
kfree(bsg_reply_buf);
|
|
return rval;
|
|
}
|
|
|
|
/**
|
|
* mpi3mr_app_save_logdata - Save Log Data events
|
|
* @mrioc: Adapter instance reference
|
|
* @event_data: event data associated with log data event
|
|
* @event_data_size: event data size to copy
|
|
*
|
|
* If log data event caching is enabled by the applicatiobns,
|
|
* then this function saves the log data in the circular queue
|
|
* and Sends async signal SIGIO to indicate there is an async
|
|
* event from the firmware to the event monitoring applications.
|
|
*
|
|
* Return:Nothing
|
|
*/
|
|
void mpi3mr_app_save_logdata(struct mpi3mr_ioc *mrioc, char *event_data,
|
|
u16 event_data_size)
|
|
{
|
|
u32 index = mrioc->logdata_buf_idx, sz;
|
|
struct mpi3mr_logdata_entry *entry;
|
|
|
|
if (!(mrioc->logdata_buf))
|
|
return;
|
|
|
|
entry = (struct mpi3mr_logdata_entry *)
|
|
(mrioc->logdata_buf + (index * mrioc->logdata_entry_sz));
|
|
entry->valid_entry = 1;
|
|
sz = min(mrioc->logdata_entry_sz, event_data_size);
|
|
memcpy(entry->data, event_data, sz);
|
|
mrioc->logdata_buf_idx =
|
|
((++index) % MPI3MR_BSG_LOGDATA_MAX_ENTRIES);
|
|
atomic64_inc(&event_counter);
|
|
}
|
|
|
|
/**
|
|
* mpi3mr_bsg_request - bsg request entry point
|
|
* @job: BSG job reference
|
|
*
|
|
* This is driver's entry point for bsg requests
|
|
*
|
|
* Return: 0 on success and proper error codes on failure
|
|
*/
|
|
static int mpi3mr_bsg_request(struct bsg_job *job)
|
|
{
|
|
long rval = -EINVAL;
|
|
unsigned int reply_payload_rcv_len = 0;
|
|
|
|
struct mpi3mr_bsg_packet *bsg_req = job->request;
|
|
|
|
switch (bsg_req->cmd_type) {
|
|
case MPI3MR_DRV_CMD:
|
|
rval = mpi3mr_bsg_process_drv_cmds(job);
|
|
break;
|
|
case MPI3MR_MPT_CMD:
|
|
rval = mpi3mr_bsg_process_mpt_cmds(job, &reply_payload_rcv_len);
|
|
break;
|
|
default:
|
|
pr_err("%s: unsupported BSG command(0x%08x)\n",
|
|
MPI3MR_DRIVER_NAME, bsg_req->cmd_type);
|
|
break;
|
|
}
|
|
|
|
bsg_job_done(job, rval, reply_payload_rcv_len);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* mpi3mr_bsg_exit - de-registration from bsg layer
|
|
*
|
|
* This will be called during driver unload and all
|
|
* bsg resources allocated during load will be freed.
|
|
*
|
|
* Return:Nothing
|
|
*/
|
|
void mpi3mr_bsg_exit(struct mpi3mr_ioc *mrioc)
|
|
{
|
|
struct device *bsg_dev = &mrioc->bsg_dev;
|
|
if (!mrioc->bsg_queue)
|
|
return;
|
|
|
|
bsg_remove_queue(mrioc->bsg_queue);
|
|
mrioc->bsg_queue = NULL;
|
|
|
|
device_del(bsg_dev);
|
|
put_device(bsg_dev);
|
|
}
|
|
|
|
/**
|
|
* mpi3mr_bsg_node_release -release bsg device node
|
|
* @dev: bsg device node
|
|
*
|
|
* decrements bsg dev parent reference count
|
|
*
|
|
* Return:Nothing
|
|
*/
|
|
static void mpi3mr_bsg_node_release(struct device *dev)
|
|
{
|
|
put_device(dev->parent);
|
|
}
|
|
|
|
/**
|
|
* mpi3mr_bsg_init - registration with bsg layer
|
|
*
|
|
* This will be called during driver load and it will
|
|
* register driver with bsg layer
|
|
*
|
|
* Return:Nothing
|
|
*/
|
|
void mpi3mr_bsg_init(struct mpi3mr_ioc *mrioc)
|
|
{
|
|
struct device *bsg_dev = &mrioc->bsg_dev;
|
|
struct device *parent = &mrioc->shost->shost_gendev;
|
|
|
|
device_initialize(bsg_dev);
|
|
|
|
bsg_dev->parent = get_device(parent);
|
|
bsg_dev->release = mpi3mr_bsg_node_release;
|
|
|
|
dev_set_name(bsg_dev, "mpi3mrctl%u", mrioc->id);
|
|
|
|
if (device_add(bsg_dev)) {
|
|
ioc_err(mrioc, "%s: bsg device add failed\n",
|
|
dev_name(bsg_dev));
|
|
put_device(bsg_dev);
|
|
return;
|
|
}
|
|
|
|
mrioc->bsg_queue = bsg_setup_queue(bsg_dev, dev_name(bsg_dev),
|
|
mpi3mr_bsg_request, NULL, 0);
|
|
if (IS_ERR(mrioc->bsg_queue)) {
|
|
ioc_err(mrioc, "%s: bsg registration failed\n",
|
|
dev_name(bsg_dev));
|
|
device_del(bsg_dev);
|
|
put_device(bsg_dev);
|
|
return;
|
|
}
|
|
|
|
blk_queue_max_segments(mrioc->bsg_queue, MPI3MR_MAX_APP_XFER_SEGMENTS);
|
|
blk_queue_max_hw_sectors(mrioc->bsg_queue, MPI3MR_MAX_APP_XFER_SECTORS);
|
|
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* version_fw_show - SysFS callback for firmware version read
|
|
* @dev: class device
|
|
* @attr: Device attributes
|
|
* @buf: Buffer to copy
|
|
*
|
|
* Return: sysfs_emit() return after copying firmware version
|
|
*/
|
|
static ssize_t
|
|
version_fw_show(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct Scsi_Host *shost = class_to_shost(dev);
|
|
struct mpi3mr_ioc *mrioc = shost_priv(shost);
|
|
struct mpi3mr_compimg_ver *fwver = &mrioc->facts.fw_ver;
|
|
|
|
return sysfs_emit(buf, "%d.%d.%d.%d.%05d-%05d\n",
|
|
fwver->gen_major, fwver->gen_minor, fwver->ph_major,
|
|
fwver->ph_minor, fwver->cust_id, fwver->build_num);
|
|
}
|
|
static DEVICE_ATTR_RO(version_fw);
|
|
|
|
/**
|
|
* fw_queue_depth_show - SysFS callback for firmware max cmds
|
|
* @dev: class device
|
|
* @attr: Device attributes
|
|
* @buf: Buffer to copy
|
|
*
|
|
* Return: sysfs_emit() return after copying firmware max commands
|
|
*/
|
|
static ssize_t
|
|
fw_queue_depth_show(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct Scsi_Host *shost = class_to_shost(dev);
|
|
struct mpi3mr_ioc *mrioc = shost_priv(shost);
|
|
|
|
return sysfs_emit(buf, "%d\n", mrioc->facts.max_reqs);
|
|
}
|
|
static DEVICE_ATTR_RO(fw_queue_depth);
|
|
|
|
/**
|
|
* op_req_q_count_show - SysFS callback for request queue count
|
|
* @dev: class device
|
|
* @attr: Device attributes
|
|
* @buf: Buffer to copy
|
|
*
|
|
* Return: sysfs_emit() return after copying request queue count
|
|
*/
|
|
static ssize_t
|
|
op_req_q_count_show(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct Scsi_Host *shost = class_to_shost(dev);
|
|
struct mpi3mr_ioc *mrioc = shost_priv(shost);
|
|
|
|
return sysfs_emit(buf, "%d\n", mrioc->num_op_req_q);
|
|
}
|
|
static DEVICE_ATTR_RO(op_req_q_count);
|
|
|
|
/**
|
|
* reply_queue_count_show - SysFS callback for reply queue count
|
|
* @dev: class device
|
|
* @attr: Device attributes
|
|
* @buf: Buffer to copy
|
|
*
|
|
* Return: sysfs_emit() return after copying reply queue count
|
|
*/
|
|
static ssize_t
|
|
reply_queue_count_show(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct Scsi_Host *shost = class_to_shost(dev);
|
|
struct mpi3mr_ioc *mrioc = shost_priv(shost);
|
|
|
|
return sysfs_emit(buf, "%d\n", mrioc->num_op_reply_q);
|
|
}
|
|
|
|
static DEVICE_ATTR_RO(reply_queue_count);
|
|
|
|
/**
|
|
* logging_level_show - Show controller debug level
|
|
* @dev: class device
|
|
* @attr: Device attributes
|
|
* @buf: Buffer to copy
|
|
*
|
|
* A sysfs 'read/write' shost attribute, to show the current
|
|
* debug log level used by the driver for the specific
|
|
* controller.
|
|
*
|
|
* Return: sysfs_emit() return
|
|
*/
|
|
static ssize_t
|
|
logging_level_show(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
|
|
{
|
|
struct Scsi_Host *shost = class_to_shost(dev);
|
|
struct mpi3mr_ioc *mrioc = shost_priv(shost);
|
|
|
|
return sysfs_emit(buf, "%08xh\n", mrioc->logging_level);
|
|
}
|
|
|
|
/**
|
|
* logging_level_store- Change controller debug level
|
|
* @dev: class device
|
|
* @attr: Device attributes
|
|
* @buf: Buffer to copy
|
|
* @count: size of the buffer
|
|
*
|
|
* A sysfs 'read/write' shost attribute, to change the current
|
|
* debug log level used by the driver for the specific
|
|
* controller.
|
|
*
|
|
* Return: strlen() return
|
|
*/
|
|
static ssize_t
|
|
logging_level_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct Scsi_Host *shost = class_to_shost(dev);
|
|
struct mpi3mr_ioc *mrioc = shost_priv(shost);
|
|
int val = 0;
|
|
|
|
if (kstrtoint(buf, 0, &val) != 0)
|
|
return -EINVAL;
|
|
|
|
mrioc->logging_level = val;
|
|
ioc_info(mrioc, "logging_level=%08xh\n", mrioc->logging_level);
|
|
return strlen(buf);
|
|
}
|
|
static DEVICE_ATTR_RW(logging_level);
|
|
|
|
/**
|
|
* adp_state_show() - SysFS callback for adapter state show
|
|
* @dev: class device
|
|
* @attr: Device attributes
|
|
* @buf: Buffer to copy
|
|
*
|
|
* Return: sysfs_emit() return after copying adapter state
|
|
*/
|
|
static ssize_t
|
|
adp_state_show(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct Scsi_Host *shost = class_to_shost(dev);
|
|
struct mpi3mr_ioc *mrioc = shost_priv(shost);
|
|
enum mpi3mr_iocstate ioc_state;
|
|
uint8_t adp_state;
|
|
|
|
ioc_state = mpi3mr_get_iocstate(mrioc);
|
|
if (ioc_state == MRIOC_STATE_UNRECOVERABLE)
|
|
adp_state = MPI3MR_BSG_ADPSTATE_UNRECOVERABLE;
|
|
else if ((mrioc->reset_in_progress) || (mrioc->stop_bsgs))
|
|
adp_state = MPI3MR_BSG_ADPSTATE_IN_RESET;
|
|
else if (ioc_state == MRIOC_STATE_FAULT)
|
|
adp_state = MPI3MR_BSG_ADPSTATE_FAULT;
|
|
else
|
|
adp_state = MPI3MR_BSG_ADPSTATE_OPERATIONAL;
|
|
|
|
return sysfs_emit(buf, "%u\n", adp_state);
|
|
}
|
|
|
|
static DEVICE_ATTR_RO(adp_state);
|
|
|
|
static struct attribute *mpi3mr_host_attrs[] = {
|
|
&dev_attr_version_fw.attr,
|
|
&dev_attr_fw_queue_depth.attr,
|
|
&dev_attr_op_req_q_count.attr,
|
|
&dev_attr_reply_queue_count.attr,
|
|
&dev_attr_logging_level.attr,
|
|
&dev_attr_adp_state.attr,
|
|
NULL,
|
|
};
|
|
|
|
static const struct attribute_group mpi3mr_host_attr_group = {
|
|
.attrs = mpi3mr_host_attrs
|
|
};
|
|
|
|
const struct attribute_group *mpi3mr_host_groups[] = {
|
|
&mpi3mr_host_attr_group,
|
|
NULL,
|
|
};
|
|
|
|
|
|
/*
|
|
* SCSI Device attributes under sysfs
|
|
*/
|
|
|
|
/**
|
|
* sas_address_show - SysFS callback for dev SASaddress display
|
|
* @dev: class device
|
|
* @attr: Device attributes
|
|
* @buf: Buffer to copy
|
|
*
|
|
* Return: sysfs_emit() return after copying SAS address of the
|
|
* specific SAS/SATA end device.
|
|
*/
|
|
static ssize_t
|
|
sas_address_show(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct scsi_device *sdev = to_scsi_device(dev);
|
|
struct mpi3mr_sdev_priv_data *sdev_priv_data;
|
|
struct mpi3mr_stgt_priv_data *tgt_priv_data;
|
|
struct mpi3mr_tgt_dev *tgtdev;
|
|
|
|
sdev_priv_data = sdev->hostdata;
|
|
if (!sdev_priv_data)
|
|
return 0;
|
|
|
|
tgt_priv_data = sdev_priv_data->tgt_priv_data;
|
|
if (!tgt_priv_data)
|
|
return 0;
|
|
tgtdev = tgt_priv_data->tgt_dev;
|
|
if (!tgtdev || tgtdev->dev_type != MPI3_DEVICE_DEVFORM_SAS_SATA)
|
|
return 0;
|
|
return sysfs_emit(buf, "0x%016llx\n",
|
|
(unsigned long long)tgtdev->dev_spec.sas_sata_inf.sas_address);
|
|
}
|
|
|
|
static DEVICE_ATTR_RO(sas_address);
|
|
|
|
/**
|
|
* device_handle_show - SysFS callback for device handle display
|
|
* @dev: class device
|
|
* @attr: Device attributes
|
|
* @buf: Buffer to copy
|
|
*
|
|
* Return: sysfs_emit() return after copying firmware internal
|
|
* device handle of the specific device.
|
|
*/
|
|
static ssize_t
|
|
device_handle_show(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct scsi_device *sdev = to_scsi_device(dev);
|
|
struct mpi3mr_sdev_priv_data *sdev_priv_data;
|
|
struct mpi3mr_stgt_priv_data *tgt_priv_data;
|
|
struct mpi3mr_tgt_dev *tgtdev;
|
|
|
|
sdev_priv_data = sdev->hostdata;
|
|
if (!sdev_priv_data)
|
|
return 0;
|
|
|
|
tgt_priv_data = sdev_priv_data->tgt_priv_data;
|
|
if (!tgt_priv_data)
|
|
return 0;
|
|
tgtdev = tgt_priv_data->tgt_dev;
|
|
if (!tgtdev)
|
|
return 0;
|
|
return sysfs_emit(buf, "0x%04x\n", tgtdev->dev_handle);
|
|
}
|
|
|
|
static DEVICE_ATTR_RO(device_handle);
|
|
|
|
/**
|
|
* persistent_id_show - SysFS callback for persisten ID display
|
|
* @dev: class device
|
|
* @attr: Device attributes
|
|
* @buf: Buffer to copy
|
|
*
|
|
* Return: sysfs_emit() return after copying persistent ID of the
|
|
* of the specific device.
|
|
*/
|
|
static ssize_t
|
|
persistent_id_show(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct scsi_device *sdev = to_scsi_device(dev);
|
|
struct mpi3mr_sdev_priv_data *sdev_priv_data;
|
|
struct mpi3mr_stgt_priv_data *tgt_priv_data;
|
|
struct mpi3mr_tgt_dev *tgtdev;
|
|
|
|
sdev_priv_data = sdev->hostdata;
|
|
if (!sdev_priv_data)
|
|
return 0;
|
|
|
|
tgt_priv_data = sdev_priv_data->tgt_priv_data;
|
|
if (!tgt_priv_data)
|
|
return 0;
|
|
tgtdev = tgt_priv_data->tgt_dev;
|
|
if (!tgtdev)
|
|
return 0;
|
|
return sysfs_emit(buf, "%d\n", tgtdev->perst_id);
|
|
}
|
|
static DEVICE_ATTR_RO(persistent_id);
|
|
|
|
static struct attribute *mpi3mr_dev_attrs[] = {
|
|
&dev_attr_sas_address.attr,
|
|
&dev_attr_device_handle.attr,
|
|
&dev_attr_persistent_id.attr,
|
|
NULL,
|
|
};
|
|
|
|
static const struct attribute_group mpi3mr_dev_attr_group = {
|
|
.attrs = mpi3mr_dev_attrs
|
|
};
|
|
|
|
const struct attribute_group *mpi3mr_dev_groups[] = {
|
|
&mpi3mr_dev_attr_group,
|
|
NULL,
|
|
};
|