cxgb4: Reset dcb state machine and tx queue prio only if dcb is enabled

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When cxgb4 is enabled with CONFIG_CHELSIO_T4_DCB set, VI enable command
gets called with DCB enabled. But when we have a back to back setup with
DCB enabled on one side and non-DCB on the Peer side. Firmware doesn't
send any DCB_L2_CFG, and DCB priority is never set for Tx queue.
But driver resets the queue priority and state machine whenever there
is a link down, this patch fixes it by adding a check to reset only if
cxgb4_dcb_enabled() returns true.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Hariprasad Shenai 2016-05-05 11:05:39 +05:30 • committed by David S. Miller

parent 5113bfdbc6

commit 218d48e701

1 changed files with 20 additions and 18 deletions

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38

drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c

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