This Linux kernel change "nvme: copy MTFA field from identify controller" is included in the Linux 5.2 release. This change is authored by Laine Walker-Avina <laine.walker-avina [at] intel.com> on Mon May 20 10:13:04 2019 -0700. The commit for this change in Linux stable tree is 2d466c7 (patch).
nvme: copy MTFA field from identify controller We use the controller's reported maximum firmware activation time as our timeout before resetting a controller for a failed activation notice, but this value was never being read so we could only use the default timeout. Copy the Identify Controller MTFA field to the corresponding nvme_ctrl's mtfa field. Fixes: b6dccf7fae433 (“nvme: add support for FW activation without reset”). Reviewed-by: Max Gurtovoy <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Reviewed-by: Minwoo Im <[email protected]> Signed-off-by: Laine Walker-Avina <[email protected]> [changelog, fix endian] Signed-off-by: Keith Busch <[email protected]>
There is one line of Linux source code added/deleted in this change. Code changes to Linux kernel are as follows.
drivers/nvme/host/core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index e1449c1..1b7c2af 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -2576,6 +2576,7 @@ int nvme_init_identify(struct nvme_ctrl *ctrl) ctrl->oacs = le16_to_cpu(id->oacs); ctrl->oncs = le16_to_cpu(id->oncs); + ctrl->mtfa = le16_to_cpu(id->mtfa); ctrl->oaes = le32_to_cpu(id->oaes); atomic_set(&ctrl->abort_limit, id->acl + 1); ctrl->vwc = id->vwc;