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Date: Sat, 11 Apr 2020 19:02:14 -0400 From: Sasha Levin <sashal@...nel.org> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: Brett Creeley <brett.creeley@...el.com>, Andrew Bowers <andrewx.bowers@...el.com>, Jeff Kirsher <jeffrey.t.kirsher@...el.com>, Sasha Levin <sashal@...nel.org>, intel-wired-lan@...ts.osuosl.org, netdev@...r.kernel.org Subject: [PATCH AUTOSEL 5.6 057/149] ice: Fix implicit queue mapping mode in ice_vsi_get_qs From: Brett Creeley <brett.creeley@...el.com> [ Upstream commit 39066dc549cf8a688f6e105a4e9f2a8abefbcebe ] Currently in ice_vsi_get_qs() we set the mapping_mode for Tx and Rx to vsi->[tx|rx]_mapping_mode, but the problem is vsi->[tx|rx]_mapping_mode have not been set yet. This was working because ICE_VSI_MAP_CONTIG is defined to 0. Fix this by being explicit with our mapping mode by initializing the Tx and Rx structure's mapping_mode to ICE_VSI_MAP_CONTIG and then setting the vsi->[tx|rx]_mapping_mode to the [tx|rx]_qs_cfg.mapping_mode values. Also, only assign the vsi->[tx|rx]_mapping_mode when the queues are successfully mapped to the VSI. With this change there was no longer a need to initialize the ret variable to 0 so remove that. Signed-off-by: Brett Creeley <brett.creeley@...el.com> Tested-by: Andrew Bowers <andrewx.bowers@...el.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com> Signed-off-by: Sasha Levin <sashal@...nel.org> --- drivers/net/ethernet/intel/ice/ice_lib.c | 21 ++++++++++++--------- 1 file changed, 12 insertions(+), 9 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c index d974e2fa3e638..3353b34561119 100644 --- a/drivers/net/ethernet/intel/ice/ice_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_lib.c @@ -433,7 +433,7 @@ static int ice_vsi_get_qs(struct ice_vsi *vsi) .scatter_count = ICE_MAX_SCATTER_TXQS, .vsi_map = vsi->txq_map, .vsi_map_offset = 0, - .mapping_mode = vsi->tx_mapping_mode + .mapping_mode = ICE_VSI_MAP_CONTIG }; struct ice_qs_cfg rx_qs_cfg = { .qs_mutex = &pf->avail_q_mutex, @@ -443,18 +443,21 @@ static int ice_vsi_get_qs(struct ice_vsi *vsi) .scatter_count = ICE_MAX_SCATTER_RXQS, .vsi_map = vsi->rxq_map, .vsi_map_offset = 0, - .mapping_mode = vsi->rx_mapping_mode + .mapping_mode = ICE_VSI_MAP_CONTIG }; - int ret = 0; - - vsi->tx_mapping_mode = ICE_VSI_MAP_CONTIG; - vsi->rx_mapping_mode = ICE_VSI_MAP_CONTIG; + int ret; ret = __ice_vsi_get_qs(&tx_qs_cfg); - if (!ret) - ret = __ice_vsi_get_qs(&rx_qs_cfg); + if (ret) + return ret; + vsi->tx_mapping_mode = tx_qs_cfg.mapping_mode; - return ret; + ret = __ice_vsi_get_qs(&rx_qs_cfg); + if (ret) + return ret; + vsi->rx_mapping_mode = rx_qs_cfg.mapping_mode; + + return 0; } /** -- 2.20.1
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