octeon_ep: add heartbeat monitor

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Monitor periodic heartbeat messages from device firmware.
Presence of heartbeat indicates the device is active and running.
If the heartbeat is missed for configured interval indicates
firmware has crashed and device is unusable; in this case, PF driver
stops and uninitialize the device.

Signed-off-by: Veerasenareddy Burru <vburru@marvell.com>
Signed-off-by: Abhijit Ayarekar <aayarekar@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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This commit is contained in:

Veerasenareddy Burru 2023-03-24 10:47:03 -07:00 • committed by David S. Miller

parent 0718693fb3

commit 5cb96c29aa

5 changed files with 66 additions and 2 deletions

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9

drivers/net/ethernet/marvell/octeon_ep/octep_cn9k_pf.c

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6

drivers/net/ethernet/marvell/octeon_ep/octep_config.h

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44

drivers/net/ethernet/marvell/octeon_ep/octep_main.c

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7

drivers/net/ethernet/marvell/octeon_ep/octep_main.h

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2

drivers/net/ethernet/marvell/octeon_ep/octep_regs_cn9k_pf.h

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