bnx2x: allow bnx2x_bsc_read() to schedule

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bnx2x_warpcore_read_sfp_module_eeprom() can call bnx2x_bsc_read()
three times before giving up.

This causes latency blips of at least 31 ms (58 ms being reported
by our teams)

Convert the long lasting loops of udelay() to usleep_range() ones,
and breaks the loops on precise time tracking.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Ariel Elior <aelior@marvell.com>
Cc: Sudarsana Kalluru <skalluru@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

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Eric Dumazet 2020-05-23 12:46:49 -07:00 • committed by David S. Miller

parent 6a1015b0b4

commit 880f8f99d1

1 changed files with 15 additions and 11 deletions

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drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c

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