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scsi: qedi: Add PCI shutdown handler support

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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: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Manish Rangankar 2020-03-19 01:38:11 -07:00 committed by Martin K. Petersen
parent 4b1068f5d7
commit 4f93c4bf0f
5 changed files with 39 additions and 2 deletions
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2
drivers/scsi/qedi/qedi.h
View file

@ -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];

1
drivers/scsi/qedi/qedi_gbl.h
View file

@ -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

18
drivers/scsi/qedi/qedi_iscsi.c
View file

@ -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)
{

1
drivers/scsi/qedi/qedi_iscsi.h
View file

@ -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;

19
drivers/scsi/qedi/qedi_main.c
View file

@ -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)