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| author | Omer Shpigelman <oshpigelman@habana.ai> | 2020-05-09 12:18:01 +0300 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2020-05-19 14:48:41 +0300 |
| commit | e09498b078f85bbad8eccb665786bea847af93d4 (patch) | |
| tree | 65f670e4fe148973acdffe57046c5a7bfbadfb52 /drivers/misc/habanalabs | |
| parent | 9e5e49cd5b90cf53a6a403a04f003b8a9a084e46 (diff) | |
| download | linux-stable-e09498b078f85bbad8eccb665786bea847af93d4.tar.gz linux-stable-e09498b078f85bbad8eccb665786bea847af93d4.tar.bz2 linux-stable-e09498b078f85bbad8eccb665786bea847af93d4.zip | |
habanalabs: add dedicated define for hard reset
Gaudi requires longer waiting during reset due to closing of network ports.
Add this explanation to the relevant comment in the code and add a
dedicated define for this reset timeout period, instead of multiplying
another define.
Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'drivers/misc/habanalabs')
| -rw-r--r-- | drivers/misc/habanalabs/device.c | 5 | ||||
| -rw-r--r-- | drivers/misc/habanalabs/habanalabs.h | 2 |
2 files changed, 5 insertions, 2 deletions
diff --git a/drivers/misc/habanalabs/device.c b/drivers/misc/habanalabs/device.c index c89157dafa33..f618cff9a167 100644 --- a/drivers/misc/habanalabs/device.c +++ b/drivers/misc/habanalabs/device.c @@ -1326,11 +1326,12 @@ void hl_device_fini(struct hl_device *hdev) * This function is competing with the reset function, so try to * take the reset atomic and if we are already in middle of reset, * wait until reset function is finished. Reset function is designed - * to always finish (could take up to a few seconds in worst case). + * to always finish. However, in Gaudi, because of all the network + * ports, the hard reset could take between 10-30 seconds */ timeout = ktime_add_us(ktime_get(), - HL_PENDING_RESET_PER_SEC * 1000 * 1000 * 4); + HL_HARD_RESET_MAX_TIMEOUT * 1000 * 1000); rc = atomic_cmpxchg(&hdev->in_reset, 0, 1); while (rc) { usleep_range(50, 200); diff --git a/drivers/misc/habanalabs/habanalabs.h b/drivers/misc/habanalabs/habanalabs.h index cfb306daa8d4..d77410886a67 100644 --- a/drivers/misc/habanalabs/habanalabs.h +++ b/drivers/misc/habanalabs/habanalabs.h @@ -25,6 +25,8 @@ #define HL_PENDING_RESET_PER_SEC 30 +#define HL_HARD_RESET_MAX_TIMEOUT 120 + #define HL_DEVICE_TIMEOUT_USEC 1000000 /* 1 s */ #define HL_HEARTBEAT_PER_USEC 5000000 /* 5 s */ |