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scsi: mpi3mr: Add ioctl support for HDB
Add interface for applications to manage the host diagnostic buffers and update the automatic diag buffer capture triggers. Co-developed-by: Sathya Prakash <sathya.prakash@broadcom.com> Signed-off-by: Sathya Prakash <sathya.prakash@broadcom.com> Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com> Link: https://lore.kernel.org/r/20240626102646.14298-4-ranjan.kumar@broadcom.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Ranjan Kumar
Martin K. Petersen
parent
d8d08d1638
commit
78b506984e
@ -200,6 +200,18 @@ extern atomic64_t event_counter;
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#define MPI3MR_HDB_TRIGGER_TYPE_SOFT_RESET 4
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#define MPI3MR_HDB_TRIGGER_TYPE_FW_RELEASED 5
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#define MPI3MR_HDB_REFRESH_TYPE_RESERVED 0
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#define MPI3MR_HDB_REFRESH_TYPE_CURRENT 1
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#define MPI3MR_HDB_REFRESH_TYPE_DEFAULT 2
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#define MPI3MR_HDB_HDB_REFRESH_TYPE_PERSISTENT 3
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#define MPI3MR_DEFAULT_HDB_SZ (4 * 1024 * 1024)
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#define MPI3MR_MAX_NUM_HDB 2
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#define MPI3MR_HDB_QUERY_ELEMENT_TRIGGER_FORMAT_INDEX 0
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#define MPI3MR_HDB_QUERY_ELEMENT_TRIGGER_FORMAT_DATA 1
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/* SGE Flag definition */
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#define MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST \
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(MPI3_SGE_FLAGS_ELEMENT_TYPE_SIMPLE | MPI3_SGE_FLAGS_DLAS_SYSTEM | \
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@ -940,6 +940,259 @@ static struct mpi3mr_ioc *mpi3mr_bsg_verify_adapter(int ioc_number)
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return NULL;
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}
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/**
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* mpi3mr_bsg_refresh_hdb_triggers - Refresh HDB trigger data
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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 reads the controller trigger config page as
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* defined by the input page type and refreshes the driver's
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* local trigger information structures with the controller's
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* config page data.
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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
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mpi3mr_bsg_refresh_hdb_triggers(struct mpi3mr_ioc *mrioc,
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struct bsg_job *job)
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{
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struct mpi3mr_bsg_out_refresh_hdb_triggers refresh_triggers;
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uint32_t data_out_sz;
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u8 page_action;
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long rval = -EINVAL;
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data_out_sz = job->request_payload.payload_len;
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if (data_out_sz != sizeof(refresh_triggers)) {
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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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if (mrioc->unrecoverable) {
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dprint_bsg_err(mrioc, "%s: unrecoverable controller\n",
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__func__);
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return -EFAULT;
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}
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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 -EAGAIN;
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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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&refresh_triggers, sizeof(refresh_triggers));
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switch (refresh_triggers.page_type) {
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case MPI3MR_HDB_REFRESH_TYPE_CURRENT:
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page_action = MPI3_CONFIG_ACTION_READ_CURRENT;
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break;
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case MPI3MR_HDB_REFRESH_TYPE_DEFAULT:
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page_action = MPI3_CONFIG_ACTION_READ_DEFAULT;
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break;
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case MPI3MR_HDB_HDB_REFRESH_TYPE_PERSISTENT:
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page_action = MPI3_CONFIG_ACTION_READ_PERSISTENT;
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break;
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default:
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dprint_bsg_err(mrioc,
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"%s: unsupported refresh trigger, page_type %d\n",
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__func__, refresh_triggers.page_type);
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return rval;
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}
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rval = mpi3mr_refresh_trigger(mrioc, page_action);
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return rval;
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}
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/**
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* mpi3mr_bsg_upload_hdb - Upload a specific HDB to user space
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* @mrioc: Adapter instance reference
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* @job: BSG Job pointer
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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_upload_hdb(struct mpi3mr_ioc *mrioc,
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struct bsg_job *job)
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{
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struct mpi3mr_bsg_out_upload_hdb upload_hdb;
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struct diag_buffer_desc *diag_buffer;
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uint32_t data_out_size;
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uint32_t data_in_size;
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data_out_size = job->request_payload.payload_len;
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data_in_size = job->reply_payload.payload_len;
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if (data_out_size != sizeof(upload_hdb)) {
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dprint_bsg_err(mrioc, "%s: invalid size argument\n",
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__func__);
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return -EINVAL;
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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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&upload_hdb, sizeof(upload_hdb));
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if ((!upload_hdb.length) || (data_in_size != upload_hdb.length)) {
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dprint_bsg_err(mrioc, "%s: invalid length argument\n",
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__func__);
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return -EINVAL;
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}
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diag_buffer = mpi3mr_diag_buffer_for_type(mrioc, upload_hdb.buf_type);
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if ((!diag_buffer) || (!diag_buffer->addr)) {
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dprint_bsg_err(mrioc, "%s: invalid buffer type %d\n",
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__func__, upload_hdb.buf_type);
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return -EINVAL;
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}
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if ((diag_buffer->status != MPI3MR_HDB_BUFSTATUS_RELEASED) &&
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(diag_buffer->status != MPI3MR_HDB_BUFSTATUS_POSTED_PAUSED)) {
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dprint_bsg_err(mrioc,
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"%s: invalid buffer status %d for type %d\n",
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__func__, diag_buffer->status, upload_hdb.buf_type);
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return -EINVAL;
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}
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if ((upload_hdb.start_offset + upload_hdb.length) > diag_buffer->size) {
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dprint_bsg_err(mrioc,
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"%s: invalid start offset %d, length %d for type %d\n",
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__func__, upload_hdb.start_offset, upload_hdb.length,
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upload_hdb.buf_type);
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return -EINVAL;
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}
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sg_copy_from_buffer(job->reply_payload.sg_list,
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job->reply_payload.sg_cnt,
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(diag_buffer->addr + upload_hdb.start_offset),
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data_in_size);
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return 0;
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}
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/**
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* mpi3mr_bsg_repost_hdb - Re-post HDB
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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 retrieves the HDB descriptor corresponding to a
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* given buffer type and if the HDB is in released status then
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* posts the HDB with the firmware.
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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_repost_hdb(struct mpi3mr_ioc *mrioc,
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struct bsg_job *job)
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{
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struct mpi3mr_bsg_out_repost_hdb repost_hdb;
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struct diag_buffer_desc *diag_buffer;
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uint32_t data_out_sz;
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data_out_sz = job->request_payload.payload_len;
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if (data_out_sz != sizeof(repost_hdb)) {
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dprint_bsg_err(mrioc, "%s: invalid size argument\n",
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__func__);
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return -EINVAL;
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}
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if (mrioc->unrecoverable) {
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dprint_bsg_err(mrioc, "%s: unrecoverable controller\n",
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__func__);
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return -EFAULT;
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}
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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 -EAGAIN;
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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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&repost_hdb, sizeof(repost_hdb));
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diag_buffer = mpi3mr_diag_buffer_for_type(mrioc, repost_hdb.buf_type);
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if ((!diag_buffer) || (!diag_buffer->addr)) {
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dprint_bsg_err(mrioc, "%s: invalid buffer type %d\n",
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__func__, repost_hdb.buf_type);
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return -EINVAL;
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}
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if (diag_buffer->status != MPI3MR_HDB_BUFSTATUS_RELEASED) {
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dprint_bsg_err(mrioc,
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"%s: invalid buffer status %d for type %d\n",
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__func__, diag_buffer->status, repost_hdb.buf_type);
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return -EINVAL;
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}
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if (mpi3mr_issue_diag_buf_post(mrioc, diag_buffer)) {
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dprint_bsg_err(mrioc, "%s: post failed for type %d\n",
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__func__, repost_hdb.buf_type);
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return -EFAULT;
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}
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mpi3mr_set_trigger_data_in_hdb(diag_buffer,
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MPI3MR_HDB_TRIGGER_TYPE_UNKNOWN, NULL, 1);
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return 0;
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}
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/**
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* mpi3mr_bsg_query_hdb - Handler for query HDB command
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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 prepares and copies the host diagnostic buffer
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* entries to the user buffer.
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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_query_hdb(struct mpi3mr_ioc *mrioc,
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struct bsg_job *job)
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{
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long rval = 0;
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struct mpi3mr_bsg_in_hdb_status *hbd_status;
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struct mpi3mr_hdb_entry *hbd_status_entry;
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u32 length, min_length;
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u8 i;
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struct diag_buffer_desc *diag_buffer;
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uint32_t data_in_sz = 0;
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data_in_sz = job->request_payload.payload_len;
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length = (sizeof(*hbd_status) + ((MPI3MR_MAX_NUM_HDB - 1) *
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sizeof(*hbd_status_entry)));
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hbd_status = kmalloc(length, GFP_KERNEL);
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if (!hbd_status)
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return -ENOMEM;
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hbd_status_entry = &hbd_status->entry[0];
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hbd_status->num_hdb_types = MPI3MR_MAX_NUM_HDB;
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for (i = 0; i < MPI3MR_MAX_NUM_HDB; i++) {
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diag_buffer = &mrioc->diag_buffers[i];
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hbd_status_entry->buf_type = diag_buffer->type;
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hbd_status_entry->status = diag_buffer->status;
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hbd_status_entry->trigger_type = diag_buffer->trigger_type;
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memcpy(&hbd_status_entry->trigger_data,
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&diag_buffer->trigger_data,
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sizeof(hbd_status_entry->trigger_data));
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hbd_status_entry->size = (diag_buffer->size / 1024);
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hbd_status_entry++;
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}
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hbd_status->element_trigger_format =
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MPI3MR_HDB_QUERY_ELEMENT_TRIGGER_FORMAT_DATA;
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if (data_in_sz < 4) {
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dprint_bsg_err(mrioc, "%s: invalid size passed\n", __func__);
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rval = -EINVAL;
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goto out;
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}
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min_length = min(data_in_sz, length);
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if (job->request_payload.payload_len >= min_length) {
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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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hbd_status, min_length);
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rval = 0;
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}
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out:
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kfree(hbd_status);
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return rval;
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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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@ -1368,6 +1621,18 @@ static long mpi3mr_bsg_process_drv_cmds(struct bsg_job *job)
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case MPI3MR_DRVBSG_OPCODE_PELENABLE:
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rval = mpi3mr_bsg_pel_enable(mrioc, job);
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break;
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case MPI3MR_DRVBSG_OPCODE_QUERY_HDB:
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rval = mpi3mr_bsg_query_hdb(mrioc, job);
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break;
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case MPI3MR_DRVBSG_OPCODE_REPOST_HDB:
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rval = mpi3mr_bsg_repost_hdb(mrioc, job);
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break;
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case MPI3MR_DRVBSG_OPCODE_UPLOAD_HDB:
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rval = mpi3mr_bsg_upload_hdb(mrioc, job);
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break;
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case MPI3MR_DRVBSG_OPCODE_REFRESH_HDB_TRIGGERS:
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rval = mpi3mr_bsg_refresh_hdb_triggers(mrioc, job);
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break;
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case MPI3MR_DRVBSG_OPCODE_UNKNOWN:
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default:
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pr_err("%s: unsupported driver command opcode %d\n",
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@ -296,6 +296,7 @@ struct mpi3mr_hdb_entry {
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* multiple hdb entries.
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*
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* @num_hdb_types: Number of host diag buffer types supported
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* @element_trigger_format: Element trigger format
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* @rsvd1: Reserved
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* @rsvd2: Reserved
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* @rsvd3: Reserved
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@ -303,7 +304,7 @@ struct mpi3mr_hdb_entry {
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*/
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struct mpi3mr_bsg_in_hdb_status {
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__u8 num_hdb_types;
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__u8 rsvd1;
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__u8 element_trigger_format;
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__u16 rsvd2;
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__u32 rsvd3;
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struct mpi3mr_hdb_entry entry[1];
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