Commit 4f93c4bf authored by Manish Rangankar's avatar Manish Rangankar Committed by Martin K. Petersen
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scsi: qedi: Add PCI shutdown handler support 

Add PCI shutdown handler support for supporting wake-on-lan feature.

Link: https://lore.kernel.org/r/20200319083811.19499-3-mrangankar@marvell.com


Signed-off-by: default avatarManish Rangankar <mrangankar@marvell.com>
Signed-off-by: default avatarNilesh Javali <njavali@marvell.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 4b1068f5

drivers/scsi/qedi/qedi.h

+2 −0
Original line number Diff line number Diff line
@@ -36,6 +36,7 @@ struct qedi_endpoint; 
 */

#define QEDI_MODE_NORMAL	0

#define QEDI_MODE_RECOVERY	1

#define QEDI_MODE_SHUTDOWN	2



#define ISCSI_WQE_SET_PTU_INVALIDATE	1

#define QEDI_MAX_ISCSI_TASK		4096
@@ -278,6 +279,7 @@ struct qedi_ctx { 
#define QEDI_IOTHREAD_WAKE	2

#define QEDI_IN_RECOVERY	5

#define QEDI_IN_OFFLINE		6

#define QEDI_IN_SHUTDOWN	7



	u8 mac[ETH_ALEN];

	u32 src_ip[4];

drivers/scsi/qedi/qedi_gbl.h

+1 −0
Original line number Diff line number Diff line
@@ -73,5 +73,6 @@ void qedi_remove_sysfs_ctx_attr(struct qedi_ctx *qedi); 
void qedi_clearsq(struct qedi_ctx *qedi,

		  struct qedi_conn *qedi_conn,

		  struct iscsi_task *task);

void qedi_clear_session_ctx(struct iscsi_cls_session *cls_sess);



#endif

drivers/scsi/qedi/qedi_iscsi.c

+18 −0
Original line number Diff line number Diff line
@@ -392,6 +392,7 @@ static int qedi_conn_bind(struct iscsi_cls_session *cls_session, 


	qedi_ep->conn = qedi_conn;

	qedi_conn->ep = qedi_ep;

	qedi_conn->iscsi_ep = ep;

	qedi_conn->iscsi_conn_id = qedi_ep->iscsi_cid;

	qedi_conn->fw_cid = qedi_ep->fw_cid;

	qedi_conn->cmd_cleanup_req = 0;
@@ -782,6 +783,9 @@ static int qedi_task_xmit(struct iscsi_task *task) 
	struct qedi_cmd *cmd = task->dd_data;

	struct scsi_cmnd *sc = task->sc;



	if (test_bit(QEDI_IN_SHUTDOWN, &qedi_conn->qedi->flags))

		return -ENODEV;



	cmd->state = 0;

	cmd->task = NULL;

	cmd->use_slowpath = false;
@@ -1596,6 +1600,20 @@ void qedi_process_iscsi_error(struct qedi_endpoint *ep, 
		qedi_start_conn_recovery(qedi_conn->qedi, qedi_conn);

}



void qedi_clear_session_ctx(struct iscsi_cls_session *cls_sess)

{

	struct iscsi_session *session = cls_sess->dd_data;

	struct iscsi_conn *conn = session->leadconn;

	struct qedi_conn *qedi_conn = conn->dd_data;



	if (iscsi_is_session_online(cls_sess))

		qedi_ep_disconnect(qedi_conn->iscsi_ep);



	qedi_conn_destroy(qedi_conn->cls_conn);



	qedi_session_destroy(cls_sess);

}



void qedi_process_tcp_error(struct qedi_endpoint *ep,

			    struct iscsi_eqe_data *data)

{

drivers/scsi/qedi/qedi_iscsi.h

+1 −0
Original line number Diff line number Diff line
@@ -149,6 +149,7 @@ struct qedi_conn { 
	struct iscsi_cls_conn *cls_conn;

	struct qedi_ctx *qedi;

	struct qedi_endpoint *ep;

	struct iscsi_endpoint *iscsi_ep;

	struct list_head active_cmd_list;

	spinlock_t list_lock;		/* internal conn lock */

	u32 active_cmd_count;

drivers/scsi/qedi/qedi_main.c

+17 −2
Original line number Diff line number Diff line
@@ -2344,7 +2344,11 @@ static void __qedi_remove(struct pci_dev *pdev, int mode) 
	struct qedi_ctx *qedi = pci_get_drvdata(pdev);

	int rval;



	if (mode == QEDI_MODE_NORMAL) {

	if (mode == QEDI_MODE_SHUTDOWN)

		iscsi_host_for_each_session(qedi->shost,

					    qedi_clear_session_ctx);



	if (mode == QEDI_MODE_NORMAL || mode == QEDI_MODE_SHUTDOWN) {

		if (qedi->tmf_thread) {

			flush_workqueue(qedi->tmf_thread);

			destroy_workqueue(qedi->tmf_thread);
@@ -2384,7 +2388,7 @@ static void __qedi_remove(struct pci_dev *pdev, int mode) 


	qedi_destroy_fp(qedi);



	if (mode == QEDI_MODE_NORMAL) {

	if (mode == QEDI_MODE_NORMAL || mode == QEDI_MODE_SHUTDOWN) {

		qedi_release_cid_que(qedi);

		qedi_cm_free_mem(qedi);

		qedi_free_uio(qedi->udev);
@@ -2404,6 +2408,16 @@ static void __qedi_remove(struct pci_dev *pdev, int mode) 
	}

}



static void qedi_shutdown(struct pci_dev *pdev)

{

	struct qedi_ctx *qedi = pci_get_drvdata(pdev);



	QEDI_ERR(&qedi->dbg_ctx, "%s: Shutdown qedi\n", __func__);

	if (test_and_set_bit(QEDI_IN_SHUTDOWN, &qedi->flags))

		return;

	__qedi_remove(pdev, QEDI_MODE_SHUTDOWN);

}



static int __qedi_probe(struct pci_dev *pdev, int mode)

{

	struct qedi_ctx *qedi;
@@ -2740,6 +2754,7 @@ static struct pci_driver qedi_pci_driver = { 
	.id_table = qedi_pci_tbl,

	.probe = qedi_probe,

	.remove = qedi_remove,

	.shutdown = qedi_shutdown,

};



static int __init qedi_init(void)

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