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Date: Wed, 09 Dec 2020 19:07:07 -0800 (PST) From: David Miller <davem@...emloft.net> To: drt@...ux.ibm.com Cc: kuba@...nel.org, dnbanerg@...ibm.com, ljp@...ux.ibm.com, sukadev@...ux.ibm.com, netdev@...r.kernel.org Subject: Re: [PATCH net-next] ibmvnic: fix rx buffer tracking and index management in replenish_rx_pool partial success From: Dany Madden <drt@...ux.ibm.com> Date: Wed, 9 Dec 2020 20:53:31 -0500 > From: "Dwip N. Banerjee" <dnbanerg@...ibm.com> > > We observed that in the error case for batched send_subcrq_indirect() the > driver does not account for the partial success case. This caused Linux to > crash when free_map and pool index are inconsistent. > > Driver needs to update the rx pools "available" count when some batched > sends worked but an error was encountered as part of the whole operation. > Also track replenish_add_buff_failure for statistic purposes. > > Fixes: 4f0b6812e9b9a ("ibmvnic: Introduce batched RX buffer descriptor transmission") > Signed-off-by: Dwip N. Banerjee <dnbanerg@...ibm.com> > Reviewed-by: Dany Madden <drt@...ux.ibm.com> Applied, thanks.
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