diff options
| author | Mark Starovoytov <mstarovoitov@marvell.com> | 2020-05-22 11:19:48 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-05-22 14:08:29 -0700 |
| commit | 40f05e5b0d0e6ed5cc868cd09fa976495716b8f9 (patch) | |
| tree | 25315f1a3ef14bdbbedb8c1d1579ba114875c4e7 /drivers/net/ethernet/aquantia | |
| parent | 2deac71ac492a6025b163701436e0aa39435a05f (diff) | |
net: atlantic: proper rss_ctrl1 (54c0) initialization
This patch fixes an inconsistency between code and spec, which
was found while working on the QoS implementation.
When 8TCs are used, 2 is the maximum supported number of index bits.
In a 4TC mode, we do support 3, but we shouldn't really use the bytes,
which are intended for the 8TC mode.
Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/aquantia')
5 files changed, 21 insertions, 8 deletions
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c index 320f3669305d..14d79f70cad7 100644 --- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c +++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c @@ -447,6 +447,19 @@ static int hw_atl_b0_hw_init_tx_path(struct aq_hw_s *self) return aq_hw_err_from_flags(self); } +void hw_atl_b0_hw_init_rx_rss_ctrl1(struct aq_hw_s *self) +{ + struct aq_nic_cfg_s *cfg = self->aq_nic_cfg; + u32 rss_ctrl1 = HW_ATL_RSS_DISABLED; + + if (cfg->is_rss) + rss_ctrl1 = (cfg->tc_mode == AQ_TC_MODE_8TCS) ? + HW_ATL_RSS_ENABLED_8TCS_2INDEX_BITS : + HW_ATL_RSS_ENABLED_4TCS_3INDEX_BITS; + + hw_atl_reg_rx_flr_rss_control1set(self, rss_ctrl1); +} + static int hw_atl_b0_hw_init_rx_path(struct aq_hw_s *self) { struct aq_nic_cfg_s *cfg = self->aq_nic_cfg; @@ -459,8 +472,7 @@ static int hw_atl_b0_hw_init_rx_path(struct aq_hw_s *self) hw_atl_rpb_rx_flow_ctl_mode_set(self, 1U); /* RSS Ring selection */ - hw_atl_reg_rx_flr_rss_control1set(self, cfg->is_rss ? - 0xB3333333U : 0x00000000U); + hw_atl_b0_hw_init_rx_rss_ctrl1(self); /* Multicast filters */ for (i = HW_ATL_B0_MAC_MAX; i--;) { diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.h b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.h index b855459272ca..30f468f2084d 100644 --- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.h +++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.h @@ -58,6 +58,8 @@ int hw_atl_b0_hw_ring_tx_head_update(struct aq_hw_s *self, int hw_atl_b0_hw_ring_tx_stop(struct aq_hw_s *self, struct aq_ring_s *ring); int hw_atl_b0_hw_ring_rx_stop(struct aq_hw_s *self, struct aq_ring_s *ring); +void hw_atl_b0_hw_init_rx_rss_ctrl1(struct aq_hw_s *self); + int hw_atl_b0_hw_mac_addr_set(struct aq_hw_s *self, u8 *mac_addr); int hw_atl_b0_hw_start(struct aq_hw_s *self); diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0_internal.h b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0_internal.h index 4fba4e0928c7..cf460d61a45e 100644 --- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0_internal.h +++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0_internal.h @@ -151,6 +151,10 @@ #define HW_ATL_B0_MAX_RXD 8184U #define HW_ATL_B0_MAX_TXD 8184U +#define HW_ATL_RSS_DISABLED 0x00000000U +#define HW_ATL_RSS_ENABLED_8TCS_2INDEX_BITS 0xA2222222U +#define HW_ATL_RSS_ENABLED_4TCS_3INDEX_BITS 0x80003333U + /* HW layer capabilities */ #endif /* HW_ATL_B0_INTERNAL_H */ diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.c index f941773b3e20..8df9d4ef36f0 100644 --- a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.c +++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.c @@ -475,9 +475,7 @@ static int hw_atl2_hw_init_rx_path(struct aq_hw_s *self) hw_atl2_rpf_rss_hash_type_set(self, HW_ATL2_RPF_RSS_HASH_TYPE_ALL); /* RSS Ring selection */ - hw_atl_reg_rx_flr_rss_control1set(self, cfg->is_rss ? - HW_ATL_RSS_ENABLED_3INDEX_BITS : - HW_ATL_RSS_DISABLED); + hw_atl_b0_hw_init_rx_rss_ctrl1(self); /* Multicast filters */ for (i = HW_ATL2_MAC_MAX; i--;) { diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_internal.h b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_internal.h index 9ac1979a4867..5a89bb8722f9 100644 --- a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_internal.h +++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_internal.h @@ -117,9 +117,6 @@ enum HW_ATL2_RPF_RSS_HASH_TYPE { HW_ATL2_RPF_RSS_HASH_TYPE_IPV6_EX_UDP, }; -#define HW_ATL_RSS_DISABLED 0x00000000U -#define HW_ATL_RSS_ENABLED_3INDEX_BITS 0xB3333333U - #define HW_ATL_MCAST_FLT_ANY_TO_HOST 0x00010FFFU struct hw_atl2_priv { |