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Date: Mon, 25 May 2020 17:53:14 -0700 (PDT) From: David Miller <davem@...emloft.net> To: edumazet@...gle.com Cc: netdev@...r.kernel.org, eric.dumazet@...il.com, aelior@...vell.com, skalluru@...vell.com Subject: Re: [PATCH net-next] bnx2x: allow bnx2x_bsc_read() to schedule From: Eric Dumazet <edumazet@...gle.com> Date: Sat, 23 May 2020 12:46:49 -0700 > 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@...gle.com> Applied.
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