Linux RDMA and InfiniBand development
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From: Michael Margolin <mrgolin@amazon.com>
To: <jgg@nvidia.com>, <leon@kernel.org>, <linux-rdma@vger.kernel.org>
Cc: <sleybo@amazon.com>, <matua@amazon.com>, <gal.pressman@linux.dev>,
	"Firas Jahjah" <firasj@amazon.com>,
	Yonatan Nachum <ynachum@amazon.com>
Subject: [PATCH for-next] RDMA/efa: Reset device on probe failure
Date: Wed, 25 Dec 2024 13:15:48 +0000	[thread overview]
Message-ID: <20241225131548.15155-1-mrgolin@amazon.com> (raw)

Make sure the device is being reset on driver exit whatever the reason
is, to keep the device aligned and allow it to close shared resources
(e.g. admin queue).

Reviewed-by: Firas Jahjah <firasj@amazon.com>
Reviewed-by: Yonatan Nachum <ynachum@amazon.com>
Signed-off-by: Michael Margolin <mrgolin@amazon.com>
---
 drivers/infiniband/hw/efa/efa_main.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/infiniband/hw/efa/efa_main.c b/drivers/infiniband/hw/efa/efa_main.c
index ad225823e6f2..0b102089e0ab 100644
--- a/drivers/infiniband/hw/efa/efa_main.c
+++ b/drivers/infiniband/hw/efa/efa_main.c
@@ -470,7 +470,6 @@ static void efa_ib_device_remove(struct efa_dev *dev)
 	ibdev_info(&dev->ibdev, "Unregister ib device\n");
 	ib_unregister_device(&dev->ibdev);
 	efa_destroy_eqs(dev);
-	efa_com_dev_reset(&dev->edev, EFA_REGS_RESET_NORMAL);
 	efa_release_doorbell_bar(dev);
 }
 
@@ -643,12 +642,13 @@ static struct efa_dev *efa_probe_device(struct pci_dev *pdev)
 	return ERR_PTR(err);
 }
 
-static void efa_remove_device(struct pci_dev *pdev)
+static void efa_remove_device(struct pci_dev *pdev, bool on_error)
 {
 	struct efa_dev *dev = pci_get_drvdata(pdev);
 	struct efa_com_dev *edev;
 
 	edev = &dev->edev;
+	efa_com_dev_reset(edev, on_error ? EFA_REGS_RESET_INIT_ERR : EFA_REGS_RESET_NORMAL);
 	efa_com_admin_destroy(edev);
 	efa_free_irq(dev, &dev->admin_irq);
 	efa_disable_msix(dev);
@@ -676,7 +676,7 @@ static int efa_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	return 0;
 
 err_remove_device:
-	efa_remove_device(pdev);
+	efa_remove_device(pdev, true);
 	return err;
 }
 
@@ -685,7 +685,7 @@ static void efa_remove(struct pci_dev *pdev)
 	struct efa_dev *dev = pci_get_drvdata(pdev);
 
 	efa_ib_device_remove(dev);
-	efa_remove_device(pdev);
+	efa_remove_device(pdev, false);
 }
 
 static void efa_shutdown(struct pci_dev *pdev)
-- 
2.40.1


             reply	other threads:[~2024-12-25 13:15 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-12-25 13:15 Michael Margolin [this message]
2024-12-30  6:46 ` [PATCH for-next] RDMA/efa: Reset device on probe failure Gal Pressman
2024-12-30  6:52   ` Gal Pressman
2024-12-30 18:41 ` Leon Romanovsky

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