Adding IOC reinitialization function.
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@xxxxxxxxxxxx>
---
drivers/scsi/mpi3mr/mpi3mr_fw.c | 116 +++++++++++++++++++++++++++++++-
1 file changed, 115 insertions(+), 1 deletion(-)
diff --git a/drivers/scsi/mpi3mr/mpi3mr_fw.c b/drivers/scsi/mpi3mr/mpi3mr_fw.c
index bad708a..a7cd02f 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_fw.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_fw.c
@@ -3568,10 +3568,124 @@ out_failed_noretry:
return retval;
}
+/**
+ * mpi3mr_reinit_ioc - Re-Initialize the controller
+ * @mrioc: Adapter instance reference
+ * @is_resume: Called from resume or reset path
+ *
+ * This the controller re-initialization routine, executed from
+ * the soft reset handler or resume callback. creates
+ * operational reply queue pairs, allocate required memory for
+ * reply pool, sense buffer pool, issue IOC init request to the
+ * firmware, unmask the events and issue port enable to discover
+ * SAS/SATA/NVMe devices and RAID volumes.
+ *
+ * Return: 0 on success and non-zero on failure.
+ */
int mpi3mr_reinit_ioc(struct mpi3mr_ioc *mrioc, u8 is_resume)
{
+ int retval = 0;
+ u8 retry = 0;
+ struct mpi3_ioc_facts_data facts_data;
- return 0;
+retry_init:
+ dprint_reset(mrioc, "bringing up the controller to ready state\n");
+ retval = mpi3mr_bring_ioc_ready(mrioc);
+ if (retval) {
+ ioc_err(mrioc, "failed to bring to ready state\n");
+ goto out_failed_noretry;
+ }
+
+ if (is_resume) {
+ dprint_reset(mrioc, "setting up single ISR\n");
+ retval = mpi3mr_setup_isr(mrioc, 1);
+ if (retval) {
+ ioc_err(mrioc, "failed to setup ISR\n");
+ goto out_failed_noretry;
+ }
+ } else
+ mpi3mr_ioc_enable_intr(mrioc);
+
+ dprint_reset(mrioc, "getting ioc_facts\n");
+ retval = mpi3mr_issue_iocfacts(mrioc, &facts_data);
+ if (retval) {
+ ioc_err(mrioc, "failed to get ioc_facts\n");
+ goto out_failed;
+ }
+
+ mpi3mr_process_factsdata(mrioc, &facts_data);
+
+ mpi3mr_print_ioc_info(mrioc);
+
+ dprint_reset(mrioc, "sending ioc_init\n");
+ retval = mpi3mr_issue_iocinit(mrioc);
+ if (retval) {
+ ioc_err(mrioc, "failed to send ioc_init\n");
+ goto out_failed;
+ }
+
+ dprint_reset(mrioc, "getting package version\n");
+ retval = mpi3mr_print_pkg_ver(mrioc);
+ if (retval) {
+ ioc_err(mrioc, "failed to get package version\n");
+ goto out_failed;
+ }
+
+ if (is_resume) {
+ dprint_reset(mrioc, "setting up multiple ISR\n");
+ retval = mpi3mr_setup_isr(mrioc, 0);
+ if (retval) {
+ ioc_err(mrioc, "failed to re-setup ISR\n");
+ goto out_failed_noretry;
+ }
+ }
+
+ dprint_reset(mrioc, "creating operational queue pairs\n");
+ retval = mpi3mr_create_op_queues(mrioc);
+ if (retval) {
+ ioc_err(mrioc, "failed to create operational queue pairs\n");
+ goto out_failed;
+ }
+
+ if (mrioc->shost->nr_hw_queues > mrioc->num_op_reply_q) {
+ ioc_err(mrioc,
+ "cannot create minimum number of operatioanl queues expected:%d created:%d\n",
+ mrioc->shost->nr_hw_queues, mrioc->num_op_reply_q);
+ goto out_failed_noretry;
+ }
+
+ dprint_reset(mrioc, "enabling events\n");
+ retval = mpi3mr_enable_events(mrioc);
+ if (retval) {
+ ioc_err(mrioc, "failed to enable events\n");
+ goto out_failed;
+ }
+
+ ioc_info(mrioc, "sending port enable\n");
+ retval = mpi3mr_issue_port_enable(mrioc, 0);
+ if (retval) {
+ ioc_err(mrioc, "failed to issue port enable\n");
+ goto out_failed;
+ }
+
+ ioc_info(mrioc, "controller %s completed successfully\n",
+ (is_resume)?"resume":"re-initialization");
+ return retval;
+out_failed:
+ if (retry < 2) {
+ retry++;
+ ioc_warn(mrioc, "retrying controller %s, retry_count:%d\n",
+ (is_resume)?"resume":"re-initialization", retry);
+ mpi3mr_memset_buffers(mrioc);
+ goto retry_init;
+ }
+out_failed_noretry:
+ ioc_err(mrioc, "controller %s is failed\n",
+ (is_resume)?"resume":"re-initialization");
+ mpi3mr_issue_reset(mrioc, MPI3_SYSIF_HOST_DIAG_RESET_ACTION_DIAG_FAULT,
+ MPI3MR_RESET_FROM_CTLR_CLEANUP);
+ mrioc->unrecoverable = 1;
+ return retval;
}
/**
--
2.27.0
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