[PATCH] habanalabs: fix order of status check

[PATCH] habanalabs: fix order of status check

[Oded Gabbay]

When the device is in reset or needs to be reset, the disabled property
is don't-care.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
---
 drivers/misc/habanalabs/common/device.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/misc/habanalabs/common/device.c b/drivers/misc/habanalabs/common/device.c
index 5871162a8442..0749c92cbcf6 100644
--- a/drivers/misc/habanalabs/common/device.c
+++ b/drivers/misc/habanalabs/common/device.c
@@ -17,12 +17,12 @@ enum hl_device_status hl_device_status(struct hl_device *hdev)
 {
 	enum hl_device_status status;
 
-	if (hdev->disabled)
-		status = HL_DEVICE_STATUS_MALFUNCTION;
-	else if (atomic_read(&hdev->in_reset))
+	if (atomic_read(&hdev->in_reset))
 		status = HL_DEVICE_STATUS_IN_RESET;
 	else if (hdev->needs_reset)
 		status = HL_DEVICE_STATUS_NEEDS_RESET;
+	else if (hdev->disabled)
+		status = HL_DEVICE_STATUS_MALFUNCTION;
 	else
 		status = HL_DEVICE_STATUS_OPERATIONAL;
 
-- 
2.25.1

[PATCH] habanalabs/gaudi: retry loading TPC f/w on -EINTR

[Oded Gabbay]

If loading the firmware file for the TPC f/w was interrupted, try
to do it again, up to 5 times.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
---
 drivers/misc/habanalabs/gaudi/gaudi.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c
index 88d0e4356d59..8c09e4466af8 100644
--- a/drivers/misc/habanalabs/gaudi/gaudi.c
+++ b/drivers/misc/habanalabs/gaudi/gaudi.c
@@ -838,11 +838,17 @@ static int gaudi_init_tpc_mem(struct hl_device *hdev)
 	size_t fw_size;
 	void *cpu_addr;
 	dma_addr_t dma_handle;
-	int rc;
+	int rc, count = 5;
 
+again:
 	rc = request_firmware(&fw, GAUDI_TPC_FW_FILE, hdev->dev);
+	if (rc == -EINTR && count-- > 0) {
+		msleep(50);
+		goto again;
+	}
+
 	if (rc) {
-		dev_err(hdev->dev, "Firmware file %s is not found!\n",
+		dev_err(hdev->dev, "Failed to load firmware file %s\n",
 				GAUDI_TPC_FW_FILE);
 		goto out;
 	}
-- 
2.25.1

[PATCH] habanalabs: register to pci shutdown callback

[Oded Gabbay]

We need to make sure our device is idle when rebooting a virtual
machine. This is done in the driver level.

The firmware will later handle FLR but we want to be extra safe and
stop the devices until the FLR is handled.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
---
 drivers/misc/habanalabs/common/habanalabs_drv.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/misc/habanalabs/common/habanalabs_drv.c b/drivers/misc/habanalabs/common/habanalabs_drv.c
index 6bbb6bca6860..032d114f01ea 100644
--- a/drivers/misc/habanalabs/common/habanalabs_drv.c
+++ b/drivers/misc/habanalabs/common/habanalabs_drv.c
@@ -544,6 +544,7 @@ static struct pci_driver hl_pci_driver = {
 	.id_table = ids,
 	.probe = hl_pci_probe,
 	.remove = hl_pci_remove,
+	.shutdown = hl_pci_remove,
 	.driver.pm = &hl_pm_ops,
 	.err_handler = &hl_pci_err_handler,
 };
-- 
2.25.1

[PATCH] habanalabs: register to pci shutdown callback

[Oded Gabbay]

We need to make sure our device is idle when rebooting a virtual
machine. This is done in the driver level.

The firmware will later handle FLR but we want to be extra safe and
stop the devices until the FLR is handled.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
---
 drivers/misc/habanalabs/common/habanalabs_drv.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/misc/habanalabs/common/habanalabs_drv.c b/drivers/misc/habanalabs/common/habanalabs_drv.c
index 6bbb6bca6860..032d114f01ea 100644
--- a/drivers/misc/habanalabs/common/habanalabs_drv.c
+++ b/drivers/misc/habanalabs/common/habanalabs_drv.c
@@ -544,6 +544,7 @@ static struct pci_driver hl_pci_driver = {
 	.id_table = ids,
 	.probe = hl_pci_probe,
 	.remove = hl_pci_remove,
+	.shutdown = hl_pci_remove,
 	.driver.pm = &hl_pm_ops,
 	.err_handler = &hl_pci_err_handler,
 };
-- 
2.17.1