Commit c0b00a93 authored by Sreekanth Reddy's avatar Sreekanth Reddy Committed by Martin K. Petersen
Browse files

scsi: mpi3mr: Add IOC reinit function 

Add IOC reinitialization function.

Link: https://lore.kernel.org/r/20211220141159.16117-16-sreekanth.reddy@broadcom.com


Signed-off-by: default avatarSreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent fe6db615

drivers/scsi/mpi3mr/mpi3mr_fw.c

+115 −1
Original line number Diff line number Diff line
@@ -3568,10 +3568,124 @@ int mpi3mr_init_ioc(struct mpi3mr_ioc *mrioc) 
	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;

}



/**