qede: Handle infinite driver spinning for Tx timestamp.

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In PTP Tx implementation, driver kept scheduling a poll thread until the
timestamp is available. In the error scenarios (e.g. app requesting the
timestamp for non-ptp packet), this thread kept waiting for the timestamp
forever.  This patch add changes to report such scenario as an error and
terminate the thread. Added a timeout of 2 seconds i.e., max time to wait
for Tx timestamp. Added a stat value ptp_skip_txts for reporting the number
of packets for which Tx timestamping is skipped.

Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Michal Kalderon <mkalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Sudarsana Reddy Kalluru 2019-05-27 20:21:33 -07:00 • committed by David S. Miller

parent 24c6203bb9

commit 9adebac37e

4 changed files with 36 additions and 7 deletions

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2

drivers/net/ethernet/qlogic/qede/qede.h

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1

drivers/net/ethernet/qlogic/qede/qede_ethtool.c

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3

drivers/net/ethernet/qlogic/qede/qede_main.c

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37

drivers/net/ethernet/qlogic/qede/qede_ptp.c

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