From c1af5427954b6a7f8c34b9778b1e1c9f1d9af302 Mon Sep 17 00:00:00 2001 From: Anton Mikaev Date: Mon, 2 Jul 2018 17:03:35 +0300 Subject: [PATCH] net: aquantia: Ethtool based ring size configuration Implemented ring size setup, min/max validation and reconfiguration in runtime. Signed-off-by: Anton Mikaev Signed-off-by: Igor Russkikh Signed-off-by: David S. Miller --- .../ethernet/aquantia/atlantic/aq_ethtool.c | 61 +++++++++++++++++++ .../net/ethernet/aquantia/atlantic/aq_hw.h | 9 ++- .../net/ethernet/aquantia/atlantic/aq_nic.c | 4 +- .../aquantia/atlantic/hw_atl/hw_atl_a0.c | 46 +++++++------- .../atlantic/hw_atl/hw_atl_a0_internal.h | 8 +++ .../aquantia/atlantic/hw_atl/hw_atl_b0.c | 50 +++++++-------- .../atlantic/hw_atl/hw_atl_b0_internal.h | 8 +++ 7 files changed, 136 insertions(+), 50 deletions(-) diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c b/drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c index f2d8063a2cef..06242154a002 100644 --- a/drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c +++ b/drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c @@ -11,6 +11,7 @@ #include "aq_ethtool.h" #include "aq_nic.h" +#include "aq_vec.h" static void aq_ethtool_get_regs(struct net_device *ndev, struct ethtool_regs *regs, void *p) @@ -284,6 +285,64 @@ static int aq_ethtool_set_coalesce(struct net_device *ndev, return aq_nic_update_interrupt_moderation_settings(aq_nic); } +static void aq_get_ringparam(struct net_device *ndev, + struct ethtool_ringparam *ring) +{ + struct aq_nic_s *aq_nic = netdev_priv(ndev); + struct aq_nic_cfg_s *aq_nic_cfg = aq_nic_get_cfg(aq_nic); + + ring->rx_pending = aq_nic_cfg->rxds; + ring->tx_pending = aq_nic_cfg->txds; + + ring->rx_max_pending = aq_nic_cfg->aq_hw_caps->rxds_max; + ring->tx_max_pending = aq_nic_cfg->aq_hw_caps->txds_max; +} + +static int aq_set_ringparam(struct net_device *ndev, + struct ethtool_ringparam *ring) +{ + int err = 0; + bool ndev_running = false; + struct aq_nic_s *aq_nic = netdev_priv(ndev); + struct aq_nic_cfg_s *aq_nic_cfg = aq_nic_get_cfg(aq_nic); + const struct aq_hw_caps_s *hw_caps = aq_nic_cfg->aq_hw_caps; + + if (ring->rx_mini_pending || ring->rx_jumbo_pending) { + err = -EOPNOTSUPP; + goto err_exit; + } + + if (netif_running(ndev)) { + ndev_running = true; + dev_close(ndev); + } + + aq_nic_free_vectors(aq_nic); + + aq_nic_cfg->rxds = max(ring->rx_pending, hw_caps->rxds_min); + aq_nic_cfg->rxds = min(aq_nic_cfg->rxds, hw_caps->rxds_max); + aq_nic_cfg->rxds = ALIGN(aq_nic_cfg->rxds, AQ_HW_RXD_MULTIPLE); + + aq_nic_cfg->txds = max(ring->tx_pending, hw_caps->txds_min); + aq_nic_cfg->txds = min(aq_nic_cfg->txds, hw_caps->txds_max); + aq_nic_cfg->txds = ALIGN(aq_nic_cfg->txds, AQ_HW_TXD_MULTIPLE); + + for (aq_nic->aq_vecs = 0; aq_nic->aq_vecs < aq_nic_cfg->vecs; + aq_nic->aq_vecs++) { + aq_nic->aq_vec[aq_nic->aq_vecs] = + aq_vec_alloc(aq_nic, aq_nic->aq_vecs, aq_nic_cfg); + if (unlikely(!aq_nic->aq_vec[aq_nic->aq_vecs])) { + err = -ENOMEM; + goto err_exit; + } + } + if (ndev_running) + err = dev_open(ndev); + +err_exit: + return err; +} + const struct ethtool_ops aq_ethtool_ops = { .get_link = aq_ethtool_get_link, .get_regs_len = aq_ethtool_get_regs_len, @@ -291,6 +350,8 @@ const struct ethtool_ops aq_ethtool_ops = { .get_drvinfo = aq_ethtool_get_drvinfo, .get_strings = aq_ethtool_get_strings, .get_rxfh_indir_size = aq_ethtool_get_rss_indir_size, + .get_ringparam = aq_get_ringparam, + .set_ringparam = aq_set_ringparam, .get_rxfh_key_size = aq_ethtool_get_rss_key_size, .get_rxfh = aq_ethtool_get_rss, .get_rxnfc = aq_ethtool_get_rxnfc, diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_hw.h b/drivers/net/ethernet/aquantia/atlantic/aq_hw.h index a2d416b24ffc..904cdfd74cd7 100644 --- a/drivers/net/ethernet/aquantia/atlantic/aq_hw.h +++ b/drivers/net/ethernet/aquantia/atlantic/aq_hw.h @@ -24,8 +24,10 @@ struct aq_hw_caps_s { u64 link_speed_msk; unsigned int hw_priv_flags; u32 media_type; - u32 rxds; - u32 txds; + u32 rxds_max; + u32 txds_max; + u32 rxds_min; + u32 txds_min; u32 txhwb_alignment; u32 irq_mask; u32 vecs; @@ -98,6 +100,9 @@ struct aq_stats_s { #define AQ_HW_MEDIA_TYPE_TP 1U #define AQ_HW_MEDIA_TYPE_FIBRE 2U +#define AQ_HW_TXD_MULTIPLE 8U +#define AQ_HW_RXD_MULTIPLE 8U + struct aq_hw_s { atomic_t flags; u8 rbl_enabled:1; diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c index 1a1a6380c128..ba6bbcfb7287 100644 --- a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c +++ b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c @@ -89,8 +89,8 @@ void aq_nic_cfg_start(struct aq_nic_s *self) aq_nic_rss_init(self, cfg->num_rss_queues); /*descriptors */ - cfg->rxds = min(cfg->aq_hw_caps->rxds, AQ_CFG_RXDS_DEF); - cfg->txds = min(cfg->aq_hw_caps->txds, AQ_CFG_TXDS_DEF); + cfg->rxds = min(cfg->aq_hw_caps->rxds_max, AQ_CFG_RXDS_DEF); + cfg->txds = min(cfg->aq_hw_caps->txds_max, AQ_CFG_TXDS_DEF); /*rss rings */ cfg->vecs = min(cfg->aq_hw_caps->vecs, AQ_CFG_VECS_DEF); diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c index 67e2f9fb9402..7fd6a7e54fc6 100644 --- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c +++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c @@ -19,29 +19,31 @@ #include "hw_atl_a0_internal.h" #define DEFAULT_A0_BOARD_BASIC_CAPABILITIES \ - .is_64_dma = true, \ - .msix_irqs = 4U, \ - .irq_mask = ~0U, \ - .vecs = HW_ATL_A0_RSS_MAX, \ - .tcs = HW_ATL_A0_TC_MAX, \ - .rxd_alignment = 1U, \ - .rxd_size = HW_ATL_A0_RXD_SIZE, \ - .rxds = 248U, \ - .txd_alignment = 1U, \ - .txd_size = HW_ATL_A0_TXD_SIZE, \ - .txds = 8U * 1024U, \ - .txhwb_alignment = 4096U, \ - .tx_rings = HW_ATL_A0_TX_RINGS, \ - .rx_rings = HW_ATL_A0_RX_RINGS, \ - .hw_features = NETIF_F_HW_CSUM | \ - NETIF_F_RXHASH | \ - NETIF_F_RXCSUM | \ - NETIF_F_SG | \ - NETIF_F_TSO, \ + .is_64_dma = true, \ + .msix_irqs = 4U, \ + .irq_mask = ~0U, \ + .vecs = HW_ATL_A0_RSS_MAX, \ + .tcs = HW_ATL_A0_TC_MAX, \ + .rxd_alignment = 1U, \ + .rxd_size = HW_ATL_A0_RXD_SIZE, \ + .rxds_max = HW_ATL_A0_MAX_RXD, \ + .rxds_min = HW_ATL_A0_MIN_RXD, \ + .txd_alignment = 1U, \ + .txd_size = HW_ATL_A0_TXD_SIZE, \ + .txds_max = HW_ATL_A0_MAX_TXD, \ + .txds_min = HW_ATL_A0_MIN_RXD, \ + .txhwb_alignment = 4096U, \ + .tx_rings = HW_ATL_A0_TX_RINGS, \ + .rx_rings = HW_ATL_A0_RX_RINGS, \ + .hw_features = NETIF_F_HW_CSUM | \ + NETIF_F_RXHASH | \ + NETIF_F_RXCSUM | \ + NETIF_F_SG | \ + NETIF_F_TSO, \ .hw_priv_flags = IFF_UNICAST_FLT, \ - .flow_control = true, \ - .mtu = HW_ATL_A0_MTU_JUMBO, \ - .mac_regs_count = 88, \ + .flow_control = true, \ + .mtu = HW_ATL_A0_MTU_JUMBO, \ + .mac_regs_count = 88, \ .hw_alive_check_addr = 0x10U const struct aq_hw_caps_s hw_atl_a0_caps_aqc100 = { diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0_internal.h b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0_internal.h index 1d8855558d74..3c94cff57876 100644 --- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0_internal.h +++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0_internal.h @@ -88,4 +88,12 @@ #define HW_ATL_A0_FW_VER_EXPECTED 0x01050006U +#define HW_ATL_A0_MIN_RXD \ + (ALIGN(AQ_CFG_SKB_FRAGS_MAX + 1U, AQ_HW_RXD_MULTIPLE)) +#define HW_ATL_A0_MIN_TXD \ + (ALIGN(AQ_CFG_SKB_FRAGS_MAX + 1U, AQ_HW_TXD_MULTIPLE)) + +#define HW_ATL_A0_MAX_RXD 8184U +#define HW_ATL_A0_MAX_TXD 8184U + #endif /* HW_ATL_A0_INTERNAL_H */ 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 819f6bcf9b4e..4ea15b9a869e 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 @@ -20,30 +20,32 @@ #include "hw_atl_llh_internal.h" #define DEFAULT_B0_BOARD_BASIC_CAPABILITIES \ - .is_64_dma = true, \ - .msix_irqs = 4U, \ - .irq_mask = ~0U, \ - .vecs = HW_ATL_B0_RSS_MAX, \ - .tcs = HW_ATL_B0_TC_MAX, \ - .rxd_alignment = 1U, \ - .rxd_size = HW_ATL_B0_RXD_SIZE, \ - .rxds = 4U * 1024U, \ - .txd_alignment = 1U, \ - .txd_size = HW_ATL_B0_TXD_SIZE, \ - .txds = 8U * 1024U, \ - .txhwb_alignment = 4096U, \ - .tx_rings = HW_ATL_B0_TX_RINGS, \ - .rx_rings = HW_ATL_B0_RX_RINGS, \ - .hw_features = NETIF_F_HW_CSUM | \ - NETIF_F_RXCSUM | \ - NETIF_F_RXHASH | \ - NETIF_F_SG | \ - NETIF_F_TSO | \ - NETIF_F_LRO, \ - .hw_priv_flags = IFF_UNICAST_FLT, \ - .flow_control = true, \ - .mtu = HW_ATL_B0_MTU_JUMBO, \ - .mac_regs_count = 88, \ + .is_64_dma = true, \ + .msix_irqs = 4U, \ + .irq_mask = ~0U, \ + .vecs = HW_ATL_B0_RSS_MAX, \ + .tcs = HW_ATL_B0_TC_MAX, \ + .rxd_alignment = 1U, \ + .rxd_size = HW_ATL_B0_RXD_SIZE, \ + .rxds_max = HW_ATL_B0_MAX_RXD, \ + .rxds_min = HW_ATL_B0_MIN_RXD, \ + .txd_alignment = 1U, \ + .txd_size = HW_ATL_B0_TXD_SIZE, \ + .txds_max = HW_ATL_B0_MAX_TXD, \ + .txds_min = HW_ATL_B0_MIN_TXD, \ + .txhwb_alignment = 4096U, \ + .tx_rings = HW_ATL_B0_TX_RINGS, \ + .rx_rings = HW_ATL_B0_RX_RINGS, \ + .hw_features = NETIF_F_HW_CSUM | \ + NETIF_F_RXCSUM | \ + NETIF_F_RXHASH | \ + NETIF_F_SG | \ + NETIF_F_TSO | \ + NETIF_F_LRO, \ + .hw_priv_flags = IFF_UNICAST_FLT, \ + .flow_control = true, \ + .mtu = HW_ATL_B0_MTU_JUMBO, \ + .mac_regs_count = 88, \ .hw_alive_check_addr = 0x10U const struct aq_hw_caps_s hw_atl_b0_caps_aqc100 = { 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 405d1455c222..28568f5fa74b 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 @@ -142,6 +142,14 @@ #define HW_ATL_INTR_MODER_MAX 0x1FF #define HW_ATL_INTR_MODER_MIN 0xFF +#define HW_ATL_B0_MIN_RXD \ + (ALIGN(AQ_CFG_SKB_FRAGS_MAX + 1U, AQ_HW_RXD_MULTIPLE)) +#define HW_ATL_B0_MIN_TXD \ + (ALIGN(AQ_CFG_SKB_FRAGS_MAX + 1U, AQ_HW_TXD_MULTIPLE)) + +#define HW_ATL_B0_MAX_RXD 8184U +#define HW_ATL_B0_MAX_TXD 8184U + /* HW layer capabilities */ #endif /* HW_ATL_B0_INTERNAL_H */ -- 2.30.2