diff options
| author |   Shannon Nelson <snelson@pensando.io> | 2021-07-27 10:43:26 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-07-27 20:15:21 +0100 |
| commit | d2662072c094be6dd7544c7752a36a5dc030076c (patch) | |
| tree | ba7b3a41268553dbbd39f10471e5f8a3b6fb54a0 /drivers/net/ethernet/pensando/ionic/ionic_dev.h | |
| parent | ionic: minimize resources when under kdump (diff) | |
| download | linux-dev-d2662072c094be6dd7544c7752a36a5dc030076c.tar.xz linux-dev-d2662072c094be6dd7544c7752a36a5dc030076c.zip | |
ionic: monitor fw status generation
The top 4 bits of the fw_status in dev_info_regs is reserved
for the status generation. This generation number is an
arbitrary value defined when firmware starts up. If the FW
is killed/crashed/stopped and then restarted, it will create
a different generation number. With this mechanism, the host
driver can detect that the FW has crashed and restarted, and
the driver can then take steps to re-initialize its connection.
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/pensando/ionic/ionic_dev.h')
| -rw-r--r-- | drivers/net/ethernet/pensando/ionic/ionic_dev.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_dev.h b/drivers/net/ethernet/pensando/ionic/ionic_dev.h index c25cf9b744c5..8945aeda1b4c 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_dev.h +++ b/drivers/net/ethernet/pensando/ionic/ionic_dev.h @@ -143,6 +143,7 @@ struct ionic_dev { u32 last_fw_hb; bool fw_hb_ready; bool fw_status_ready; + u8 fw_generation; u64 __iomem *db_pages; dma_addr_t phy_db_pages; |