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net: aquantia: Ethtool based ring size configuration

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Implemented ring size setup, min/max validation and reconfiguration in
runtime.

Signed-off-by: Anton Mikaev <amikaev@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Anton Mikaev 2018-07-02 17:03:35 +03:00 committed by David S. Miller
parent c18a9c0966
commit c1af542795
7 changed files with 136 additions and 50 deletions
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61
drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c
View File

@ -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,

9
drivers/net/ethernet/aquantia/atlantic/aq_hw.h
View File

@ -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;

4
drivers/net/ethernet/aquantia/atlantic/aq_nic.c
View File

@ -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);

46
drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c
View File

@ -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 = {

8
drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0_internal.h
View File

@ -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 */

50
drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c
View File

@ -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 = {

8
drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0_internal.h
View File

@ -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 */