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|
/*
* aQuantia Corporation Network Driver
* Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*/
/* File hw_atl_b0.c: Definition of Atlantic hardware specific functions. */
#include "../aq_hw.h"
#include "../aq_hw_utils.h"
#include "../aq_ring.h"
#include "../aq_nic.h"
#include "hw_atl_b0.h"
#include "hw_atl_utils.h"
#include "hw_atl_llh.h"
#include "hw_atl_b0_internal.h"
#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_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 = {
DEFAULT_B0_BOARD_BASIC_CAPABILITIES,
.media_type = AQ_HW_MEDIA_TYPE_FIBRE,
.link_speed_msk = AQ_NIC_RATE_10G |
AQ_NIC_RATE_5G |
AQ_NIC_RATE_2GS |
AQ_NIC_RATE_1G |
AQ_NIC_RATE_100M,
};
const struct aq_hw_caps_s hw_atl_b0_caps_aqc107 = {
DEFAULT_B0_BOARD_BASIC_CAPABILITIES,
.media_type = AQ_HW_MEDIA_TYPE_TP,
.link_speed_msk = AQ_NIC_RATE_10G |
AQ_NIC_RATE_5G |
AQ_NIC_RATE_2GS |
AQ_NIC_RATE_1G |
AQ_NIC_RATE_100M,
};
const struct aq_hw_caps_s hw_atl_b0_caps_aqc108 = {
DEFAULT_B0_BOARD_BASIC_CAPABILITIES,
.media_type = AQ_HW_MEDIA_TYPE_TP,
.link_speed_msk = AQ_NIC_RATE_5G |
AQ_NIC_RATE_2GS |
AQ_NIC_RATE_1G |
AQ_NIC_RATE_100M,
};
const struct aq_hw_caps_s hw_atl_b0_caps_aqc109 = {
DEFAULT_B0_BOARD_BASIC_CAPABILITIES,
.media_type = AQ_HW_MEDIA_TYPE_TP,
.link_speed_msk = AQ_NIC_RATE_2GS |
AQ_NIC_RATE_1G |
AQ_NIC_RATE_100M,
};
static int hw_atl_b0_hw_reset(struct aq_hw_s *self)
{
int err = 0;
err = hw_atl_utils_soft_reset(self);
if (err)
return err;
self->aq_fw_ops->set_state(self, MPI_RESET);
err = aq_hw_err_from_flags(self);
return err;
}
static int hw_atl_b0_set_fc(struct aq_hw_s *self, u32 fc, u32 tc)
{
hw_atl_rpb_rx_xoff_en_per_tc_set(self, !!(fc & AQ_NIC_FC_RX), tc);
return 0;
}
static int hw_atl_b0_hw_qos_set(struct aq_hw_s *self)
{
u32 tc = 0U;
u32 buff_size = 0U;
unsigned int i_priority = 0U;
/* TPS Descriptor rate init */
hw_atl_tps_tx_pkt_shed_desc_rate_curr_time_res_set(self, 0x0U);
hw_atl_tps_tx_pkt_shed_desc_rate_lim_set(self, 0xA);
/* TPS VM init */
hw_atl_tps_tx_pkt_shed_desc_vm_arb_mode_set(self, 0U);
/* TPS TC credits init */
hw_atl_tps_tx_pkt_shed_desc_tc_arb_mode_set(self, 0U);
hw_atl_tps_tx_pkt_shed_data_arb_mode_set(self, 0U);
hw_atl_tps_tx_pkt_shed_tc_data_max_credit_set(self, 0xFFF, 0U);
hw_atl_tps_tx_pkt_shed_tc_data_weight_set(self, 0x64, 0U);
hw_atl_tps_tx_pkt_shed_desc_tc_max_credit_set(self, 0x50, 0U);
hw_atl_tps_tx_pkt_shed_desc_tc_weight_set(self, 0x1E, 0U);
/* Tx buf size */
buff_size = HW_ATL_B0_TXBUF_MAX;
hw_atl_tpb_tx_pkt_buff_size_per_tc_set(self, buff_size, tc);
hw_atl_tpb_tx_buff_hi_threshold_per_tc_set(self,
(buff_size *
(1024 / 32U) * 66U) /
100U, tc);
hw_atl_tpb_tx_buff_lo_threshold_per_tc_set(self,
(buff_size *
(1024 / 32U) * 50U) /
100U, tc);
/* QoS Rx buf size per TC */
tc = 0;
buff_size = HW_ATL_B0_RXBUF_MAX;
hw_atl_rpb_rx_pkt_buff_size_per_tc_set(self, buff_size, tc);
hw_atl_rpb_rx_buff_hi_threshold_per_tc_set(self,
(buff_size *
(1024U / 32U) * 66U) /
100U, tc);
hw_atl_rpb_rx_buff_lo_threshold_per_tc_set(self,
(buff_size *
(1024U / 32U) * 50U) /
100U, tc);
hw_atl_b0_set_fc(self, self->aq_nic_cfg->flow_control, tc);
/* QoS 802.1p priority -> TC mapping */
for (i_priority = 8U; i_priority--;)
hw_atl_rpf_rpb_user_priority_tc_map_set(self, i_priority, 0U);
return aq_hw_err_from_flags(self);
}
static int hw_atl_b0_hw_rss_hash_set(struct aq_hw_s *self,
struct aq_rss_parameters *rss_params)
{
struct aq_nic_cfg_s *cfg = self->aq_nic_cfg;
int err = 0;
unsigned int i = 0U;
unsigned int addr = 0U;
for (i = 10, addr = 0U; i--; ++addr) {
u32 key_data = cfg->is_rss ?
__swab32(rss_params->hash_secret_key[i]) : 0U;
hw_atl_rpf_rss_key_wr_data_set(self, key_data);
hw_atl_rpf_rss_key_addr_set(self, addr);
hw_atl_rpf_rss_key_wr_en_set(self, 1U);
AQ_HW_WAIT_FOR(hw_atl_rpf_rss_key_wr_en_get(self) == 0,
1000U, 10U);
if (err < 0)
goto err_exit;
}
err = aq_hw_err_from_flags(self);
err_exit:
return err;
}
static int hw_atl_b0_hw_rss_set(struct aq_hw_s *self,
struct aq_rss_parameters *rss_params)
{
u8 *indirection_table = rss_params->indirection_table;
u32 i = 0U;
u32 num_rss_queues = max(1U, self->aq_nic_cfg->num_rss_queues);
int err = 0;
u16 bitary[(HW_ATL_B0_RSS_REDIRECTION_MAX *
HW_ATL_B0_RSS_REDIRECTION_BITS / 16U)];
memset(bitary, 0, sizeof(bitary));
for (i = HW_ATL_B0_RSS_REDIRECTION_MAX; i--;) {
(*(u32 *)(bitary + ((i * 3U) / 16U))) |=
((indirection_table[i] % num_rss_queues) <<
((i * 3U) & 0xFU));
}
for (i = ARRAY_SIZE(bitary); i--;) {
hw_atl_rpf_rss_redir_tbl_wr_data_set(self, bitary[i]);
hw_atl_rpf_rss_redir_tbl_addr_set(self, i);
hw_atl_rpf_rss_redir_wr_en_set(self, 1U);
AQ_HW_WAIT_FOR(hw_atl_rpf_rss_redir_wr_en_get(self) == 0,
1000U, 10U);
if (err < 0)
goto err_exit;
}
err = aq_hw_err_from_flags(self);
err_exit:
return err;
}
static int hw_atl_b0_hw_offload_set(struct aq_hw_s *self,
struct aq_nic_cfg_s *aq_nic_cfg)
{
unsigned int i;
/* TX checksums offloads*/
hw_atl_tpo_ipv4header_crc_offload_en_set(self, 1);
hw_atl_tpo_tcp_udp_crc_offload_en_set(self, 1);
/* RX checksums offloads*/
hw_atl_rpo_ipv4header_crc_offload_en_set(self, !!(aq_nic_cfg->features &
NETIF_F_RXCSUM));
hw_atl_rpo_tcp_udp_crc_offload_en_set(self, !!(aq_nic_cfg->features &
NETIF_F_RXCSUM));
/* LSO offloads*/
hw_atl_tdm_large_send_offload_en_set(self, 0xFFFFFFFFU);
/* LRO offloads */
{
unsigned int val = (8U < HW_ATL_B0_LRO_RXD_MAX) ? 0x3U :
((4U < HW_ATL_B0_LRO_RXD_MAX) ? 0x2U :
((2U < HW_ATL_B0_LRO_RXD_MAX) ? 0x1U : 0x0));
for (i = 0; i < HW_ATL_B0_RINGS_MAX; i++)
hw_atl_rpo_lro_max_num_of_descriptors_set(self, val, i);
hw_atl_rpo_lro_time_base_divider_set(self, 0x61AU);
hw_atl_rpo_lro_inactive_interval_set(self, 0);
hw_atl_rpo_lro_max_coalescing_interval_set(self, 2);
hw_atl_rpo_lro_qsessions_lim_set(self, 1U);
hw_atl_rpo_lro_total_desc_lim_set(self, 2U);
hw_atl_rpo_lro_patch_optimization_en_set(self, 0U);
hw_atl_rpo_lro_min_pay_of_first_pkt_set(self, 10U);
hw_atl_rpo_lro_pkt_lim_set(self, 1U);
hw_atl_rpo_lro_en_set(self,
aq_nic_cfg->is_lro ? 0xFFFFFFFFU : 0U);
}
return aq_hw_err_from_flags(self);
}
static int hw_atl_b0_hw_init_tx_path(struct aq_hw_s *self)
{
hw_atl_thm_lso_tcp_flag_of_first_pkt_set(self, 0x0FF6U);
hw_atl_thm_lso_tcp_flag_of_middle_pkt_set(self, 0x0FF6U);
hw_atl_thm_lso_tcp_flag_of_last_pkt_set(self, 0x0F7FU);
/* Tx interrupts */
hw_atl_tdm_tx_desc_wr_wb_irq_en_set(self, 1U);
/* misc */
aq_hw_write_reg(self, 0x00007040U, IS_CHIP_FEATURE(TPO2) ?
0x00010000U : 0x00000000U);
hw_atl_tdm_tx_dca_en_set(self, 0U);
hw_atl_tdm_tx_dca_mode_set(self, 0U);
hw_atl_tpb_tx_path_scp_ins_en_set(self, 1U);
return aq_hw_err_from_flags(self);
}
static int hw_atl_b0_hw_init_rx_path(struct aq_hw_s *self)
{
struct aq_nic_cfg_s *cfg = self->aq_nic_cfg;
int i;
/* Rx TC/RSS number config */
hw_atl_rpb_rpf_rx_traf_class_mode_set(self, 1U);
/* Rx flow control */
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);
/* Multicast filters */
for (i = HW_ATL_B0_MAC_MAX; i--;) {
hw_atl_rpfl2_uc_flr_en_set(self, (i == 0U) ? 1U : 0U, i);
hw_atl_rpfl2unicast_flr_act_set(self, 1U, i);
}
hw_atl_reg_rx_flr_mcst_flr_msk_set(self, 0x00000000U);
hw_atl_reg_rx_flr_mcst_flr_set(self, 0x00010FFFU, 0U);
/* Vlan filters */
hw_atl_rpf_vlan_outer_etht_set(self, 0x88A8U);
hw_atl_rpf_vlan_inner_etht_set(self, 0x8100U);
if (cfg->vlan_id) {
hw_atl_rpf_vlan_flr_act_set(self, 1U, 0U);
hw_atl_rpf_vlan_id_flr_set(self, 0U, 0U);
hw_atl_rpf_vlan_flr_en_set(self, 0U, 0U);
hw_atl_rpf_vlan_accept_untagged_packets_set(self, 1U);
hw_atl_rpf_vlan_untagged_act_set(self, 1U);
hw_atl_rpf_vlan_flr_act_set(self, 1U, 1U);
hw_atl_rpf_vlan_id_flr_set(self, cfg->vlan_id, 0U);
hw_atl_rpf_vlan_flr_en_set(self, 1U, 1U);
} else {
hw_atl_rpf_vlan_prom_mode_en_set(self, 1);
}
/* Rx Interrupts */
hw_atl_rdm_rx_desc_wr_wb_irq_en_set(self, 1U);
/* misc */
aq_hw_write_reg(self, 0x00005040U,
IS_CHIP_FEATURE(RPF2) ? 0x000F0000U : 0x00000000U);
hw_atl_rpfl2broadcast_flr_act_set(self, 1U);
hw_atl_rpfl2broadcast_count_threshold_set(self, 0xFFFFU & (~0U / 256U));
hw_atl_rdm_rx_dca_en_set(self, 0U);
hw_atl_rdm_rx_dca_mode_set(self, 0U);
return aq_hw_err_from_flags(self);
}
static int hw_atl_b0_hw_mac_addr_set(struct aq_hw_s *self, u8 *mac_addr)
{
int err = 0;
unsigned int h = 0U;
unsigned int l = 0U;
if (!mac_addr) {
err = -EINVAL;
goto err_exit;
}
h = (mac_addr[0] << 8) | (mac_addr[1]);
l = (mac_addr[2] << 24) | (mac_addr[3] << 16) |
(mac_addr[4] << 8) | mac_addr[5];
hw_atl_rpfl2_uc_flr_en_set(self, 0U, HW_ATL_B0_MAC);
hw_atl_rpfl2unicast_dest_addresslsw_set(self, l, HW_ATL_B0_MAC);
hw_atl_rpfl2unicast_dest_addressmsw_set(self, h, HW_ATL_B0_MAC);
hw_atl_rpfl2_uc_flr_en_set(self, 1U, HW_ATL_B0_MAC);
err = aq_hw_err_from_flags(self);
err_exit:
return err;
}
static int hw_atl_b0_hw_init(struct aq_hw_s *self, u8 *mac_addr)
{
static u32 aq_hw_atl_igcr_table_[4][2] = {
{ 0x20000000U, 0x20000000U }, /* AQ_IRQ_INVALID */
{ 0x20000080U, 0x20000080U }, /* AQ_IRQ_LEGACY */
{ 0x20000021U, 0x20000025U }, /* AQ_IRQ_MSI */
{ 0x20000022U, 0x20000026U } /* AQ_IRQ_MSIX */
};
int err = 0;
u32 val;
struct aq_nic_cfg_s *aq_nic_cfg = self->aq_nic_cfg;
hw_atl_b0_hw_init_tx_path(self);
hw_atl_b0_hw_init_rx_path(self);
hw_atl_b0_hw_mac_addr_set(self, mac_addr);
self->aq_fw_ops->set_link_speed(self, aq_nic_cfg->link_speed_msk);
self->aq_fw_ops->set_state(self, MPI_INIT);
hw_atl_b0_hw_qos_set(self);
hw_atl_b0_hw_rss_set(self, &aq_nic_cfg->aq_rss);
hw_atl_b0_hw_rss_hash_set(self, &aq_nic_cfg->aq_rss);
/* Force limit MRRS on RDM/TDM to 2K */
val = aq_hw_read_reg(self, HW_ATL_PCI_REG_CONTROL6_ADR);
aq_hw_write_reg(self, HW_ATL_PCI_REG_CONTROL6_ADR,
(val & ~0x707) | 0x404);
/* TX DMA total request limit. B0 hardware is not capable to
* handle more than (8K-MRRS) incoming DMA data.
* Value 24 in 256byte units
*/
aq_hw_write_reg(self, HW_ATL_TX_DMA_TOTAL_REQ_LIMIT_ADR, 24);
/* Reset link status and read out initial hardware counters */
self->aq_link_status.mbps = 0;
self->aq_fw_ops->update_stats(self);
err = aq_hw_err_from_flags(self);
if (err < 0)
goto err_exit;
/* Interrupts */
hw_atl_reg_irq_glb_ctl_set(self,
aq_hw_atl_igcr_table_[aq_nic_cfg->irq_type]
[(aq_nic_cfg->vecs > 1U) ?
1 : 0]);
hw_atl_itr_irq_auto_masklsw_set(self, aq_nic_cfg->aq_hw_caps->irq_mask);
/* Interrupts */
hw_atl_reg_gen_irq_map_set(self,
((HW_ATL_B0_ERR_INT << 0x18) | (1U << 0x1F)) |
((HW_ATL_B0_ERR_INT << 0x10) | (1U << 0x17)), 0U);
hw_atl_b0_hw_offload_set(self, aq_nic_cfg);
err_exit:
return err;
}
static int hw_atl_b0_hw_ring_tx_start(struct aq_hw_s *self,
struct aq_ring_s *ring)
{
hw_atl_tdm_tx_desc_en_set(self, 1, ring->idx);
return aq_hw_err_from_flags(self);
}
static int hw_atl_b0_hw_ring_rx_start(struct aq_hw_s *self,
struct aq_ring_s *ring)
{
hw_atl_rdm_rx_desc_en_set(self, 1, ring->idx);
return aq_hw_err_from_flags(self);
}
static int hw_atl_b0_hw_start(struct aq_hw_s *self)
{
hw_atl_tpb_tx_buff_en_set(self, 1);
hw_atl_rpb_rx_buff_en_set(self, 1);
return aq_hw_err_from_flags(self);
}
static int hw_atl_b0_hw_tx_ring_tail_update(struct aq_hw_s *self,
struct aq_ring_s *ring)
{
hw_atl_reg_tx_dma_desc_tail_ptr_set(self, ring->sw_tail, ring->idx);
return 0;
}
static int hw_atl_b0_hw_ring_tx_xmit(struct aq_hw_s *self,
struct aq_ring_s *ring,
unsigned int frags)
{
struct aq_ring_buff_s *buff = NULL;
struct hw_atl_txd_s *txd = NULL;
unsigned int buff_pa_len = 0U;
unsigned int pkt_len = 0U;
unsigned int frag_count = 0U;
bool is_gso = false;
buff = &ring->buff_ring[ring->sw_tail];
pkt_len = (buff->is_eop && buff->is_sop) ? buff->len : buff->len_pkt;
for (frag_count = 0; frag_count < frags; frag_count++) {
txd = (struct hw_atl_txd_s *)&ring->dx_ring[ring->sw_tail *
HW_ATL_B0_TXD_SIZE];
txd->ctl = 0;
txd->ctl2 = 0;
txd->buf_addr = 0;
buff = &ring->buff_ring[ring->sw_tail];
if (buff->is_txc) {
txd->ctl |= (buff->len_l3 << 31) |
(buff->len_l2 << 24) |
HW_ATL_B0_TXD_CTL_CMD_TCP |
HW_ATL_B0_TXD_CTL_DESC_TYPE_TXC;
txd->ctl2 |= (buff->mss << 16) |
(buff->len_l4 << 8) |
(buff->len_l3 >> 1);
pkt_len -= (buff->len_l4 +
buff->len_l3 +
buff->len_l2);
is_gso = true;
if (buff->is_ipv6)
txd->ctl |= HW_ATL_B0_TXD_CTL_CMD_IPV6;
} else {
buff_pa_len = buff->len;
txd->buf_addr = buff->pa;
txd->ctl |= (HW_ATL_B0_TXD_CTL_BLEN &
((u32)buff_pa_len << 4));
txd->ctl |= HW_ATL_B0_TXD_CTL_DESC_TYPE_TXD;
/* PAY_LEN */
txd->ctl2 |= HW_ATL_B0_TXD_CTL2_LEN & (pkt_len << 14);
if (is_gso) {
txd->ctl |= HW_ATL_B0_TXD_CTL_CMD_LSO;
txd->ctl2 |= HW_ATL_B0_TXD_CTL2_CTX_EN;
}
/* Tx checksum offloads */
if (buff->is_ip_cso)
txd->ctl |= HW_ATL_B0_TXD_CTL_CMD_IPCSO;
if (buff->is_udp_cso || buff->is_tcp_cso)
txd->ctl |= HW_ATL_B0_TXD_CTL_CMD_TUCSO;
if (unlikely(buff->is_eop)) {
txd->ctl |= HW_ATL_B0_TXD_CTL_EOP;
txd->ctl |= HW_ATL_B0_TXD_CTL_CMD_WB;
is_gso = false;
}
}
ring->sw_tail = aq_ring_next_dx(ring, ring->sw_tail);
}
hw_atl_b0_hw_tx_ring_tail_update(self, ring);
return aq_hw_err_from_flags(self);
}
static int hw_atl_b0_hw_ring_rx_init(struct aq_hw_s *self,
struct aq_ring_s *aq_ring,
struct aq_ring_param_s *aq_ring_param)
{
u32 dma_desc_addr_lsw = (u32)aq_ring->dx_ring_pa;
u32 dma_desc_addr_msw = (u32)(((u64)aq_ring->dx_ring_pa) >> 32);
hw_atl_rdm_rx_desc_en_set(self, false, aq_ring->idx);
hw_atl_rdm_rx_desc_head_splitting_set(self, 0U, aq_ring->idx);
hw_atl_reg_rx_dma_desc_base_addresslswset(self, dma_desc_addr_lsw,
aq_ring->idx);
hw_atl_reg_rx_dma_desc_base_addressmswset(self,
dma_desc_addr_msw, aq_ring->idx);
hw_atl_rdm_rx_desc_len_set(self, aq_ring->size / 8U, aq_ring->idx);
hw_atl_rdm_rx_desc_data_buff_size_set(self,
AQ_CFG_RX_FRAME_MAX / 1024U,
aq_ring->idx);
hw_atl_rdm_rx_desc_head_buff_size_set(self, 0U, aq_ring->idx);
hw_atl_rdm_rx_desc_head_splitting_set(self, 0U, aq_ring->idx);
hw_atl_rpo_rx_desc_vlan_stripping_set(self, 0U, aq_ring->idx);
/* Rx ring set mode */
/* Mapping interrupt vector */
hw_atl_itr_irq_map_rx_set(self, aq_ring_param->vec_idx, aq_ring->idx);
hw_atl_itr_irq_map_en_rx_set(self, true, aq_ring->idx);
hw_atl_rdm_cpu_id_set(self, aq_ring_param->cpu, aq_ring->idx);
hw_atl_rdm_rx_desc_dca_en_set(self, 0U, aq_ring->idx);
hw_atl_rdm_rx_head_dca_en_set(self, 0U, aq_ring->idx);
hw_atl_rdm_rx_pld_dca_en_set(self, 0U, aq_ring->idx);
return aq_hw_err_from_flags(self);
}
static int hw_atl_b0_hw_ring_tx_init(struct aq_hw_s *self,
struct aq_ring_s *aq_ring,
struct aq_ring_param_s *aq_ring_param)
{
u32 dma_desc_lsw_addr = (u32)aq_ring->dx_ring_pa;
u32 dma_desc_msw_addr = (u32)(((u64)aq_ring->dx_ring_pa) >> 32);
hw_atl_reg_tx_dma_desc_base_addresslswset(self, dma_desc_lsw_addr,
aq_ring->idx);
hw_atl_reg_tx_dma_desc_base_addressmswset(self, dma_desc_msw_addr,
aq_ring->idx);
hw_atl_tdm_tx_desc_len_set(self, aq_ring->size / 8U, aq_ring->idx);
hw_atl_b0_hw_tx_ring_tail_update(self, aq_ring);
/* Set Tx threshold */
hw_atl_tdm_tx_desc_wr_wb_threshold_set(self, 0U, aq_ring->idx);
/* Mapping interrupt vector */
hw_atl_itr_irq_map_tx_set(self, aq_ring_param->vec_idx, aq_ring->idx);
hw_atl_itr_irq_map_en_tx_set(self, true, aq_ring->idx);
hw_atl_tdm_cpu_id_set(self, aq_ring_param->cpu, aq_ring->idx);
hw_atl_tdm_tx_desc_dca_en_set(self, 0U, aq_ring->idx);
return aq_hw_err_from_flags(self);
}
static int hw_atl_b0_hw_ring_rx_fill(struct aq_hw_s *self,
struct aq_ring_s *ring,
unsigned int sw_tail_old)
{
for (; sw_tail_old != ring->sw_tail;
sw_tail_old = aq_ring_next_dx(ring, sw_tail_old)) {
struct hw_atl_rxd_s *rxd =
(struct hw_atl_rxd_s *)&ring->dx_ring[sw_tail_old *
HW_ATL_B0_RXD_SIZE];
struct aq_ring_buff_s *buff = &ring->buff_ring[sw_tail_old];
rxd->buf_addr = buff->pa;
rxd->hdr_addr = 0U;
}
hw_atl_reg_rx_dma_desc_tail_ptr_set(self, sw_tail_old, ring->idx);
return aq_hw_err_from_flags(self);
}
static int hw_atl_b0_hw_ring_tx_head_update(struct aq_hw_s *self,
struct aq_ring_s *ring)
{
int err = 0;
unsigned int hw_head_ = hw_atl_tdm_tx_desc_head_ptr_get(self, ring->idx);
if (aq_utils_obj_test(&self->flags, AQ_HW_FLAG_ERR_UNPLUG)) {
err = -ENXIO;
goto err_exit;
}
ring->hw_head = hw_head_;
err = aq_hw_err_from_flags(self);
err_exit:
return err;
}
static int hw_atl_b0_hw_ring_rx_receive(struct aq_hw_s *self,
struct aq_ring_s *ring)
{
struct device *ndev = aq_nic_get_dev(ring->aq_nic);
for (; ring->hw_head != ring->sw_tail;
ring->hw_head = aq_ring_next_dx(ring, ring->hw_head)) {
struct aq_ring_buff_s *buff = NULL;
struct hw_atl_rxd_wb_s *rxd_wb = (struct hw_atl_rxd_wb_s *)
&ring->dx_ring[ring->hw_head * HW_ATL_B0_RXD_SIZE];
unsigned int is_rx_check_sum_enabled = 0U;
unsigned int pkt_type = 0U;
u8 rx_stat = 0U;
if (!(rxd_wb->status & 0x1U)) { /* RxD is not done */
break;
}
buff = &ring->buff_ring[ring->hw_head];
rx_stat = (0x0000003CU & rxd_wb->status) >> 2;
is_rx_check_sum_enabled = (rxd_wb->type >> 19) & 0x3U;
pkt_type = 0xFFU & (rxd_wb->type >> 4);
if (is_rx_check_sum_enabled & BIT(0) &&
(0x0U == (pkt_type & 0x3U)))
buff->is_ip_cso = (rx_stat & BIT(1)) ? 0U : 1U;
if (is_rx_check_sum_enabled & BIT(1)) {
if (0x4U == (pkt_type & 0x1CU))
buff->is_udp_cso = (rx_stat & BIT(2)) ? 0U :
!!(rx_stat & BIT(3));
else if (0x0U == (pkt_type & 0x1CU))
buff->is_tcp_cso = (rx_stat & BIT(2)) ? 0U :
!!(rx_stat & BIT(3));
}
buff->is_cso_err = !!(rx_stat & 0x6);
/* Checksum offload workaround for small packets */
if (unlikely(rxd_wb->pkt_len <= 60)) {
buff->is_ip_cso = 0U;
buff->is_cso_err = 0U;
}
dma_unmap_page(ndev, buff->pa, buff->len, DMA_FROM_DEVICE);
if ((rx_stat & BIT(0)) || rxd_wb->type & 0x1000U) {
/* MAC error or DMA error */
buff->is_error = 1U;
} else {
if (self->aq_nic_cfg->is_rss) {
/* last 4 byte */
u16 rss_type = rxd_wb->type & 0xFU;
if (rss_type && rss_type < 0x8U) {
buff->is_hash_l4 = (rss_type == 0x4 ||
rss_type == 0x5);
buff->rss_hash = rxd_wb->rss_hash;
}
}
if (HW_ATL_B0_RXD_WB_STAT2_EOP & rxd_wb->status) {
buff->len = rxd_wb->pkt_len %
AQ_CFG_RX_FRAME_MAX;
buff->len = buff->len ?
buff->len : AQ_CFG_RX_FRAME_MAX;
buff->next = 0U;
buff->is_eop = 1U;
} else {
if (HW_ATL_B0_RXD_WB_STAT2_RSCCNT &
rxd_wb->status) {
/* LRO */
buff->next = rxd_wb->next_desc_ptr;
++ring->stats.rx.lro_packets;
} else {
/* jumbo */
buff->next =
aq_ring_next_dx(ring,
ring->hw_head);
++ring->stats.rx.jumbo_packets;
}
}
}
}
return aq_hw_err_from_flags(self);
}
static int hw_atl_b0_hw_irq_enable(struct aq_hw_s *self, u64 mask)
{
hw_atl_itr_irq_msk_setlsw_set(self, LODWORD(mask));
return aq_hw_err_from_flags(self);
}
static int hw_atl_b0_hw_irq_disable(struct aq_hw_s *self, u64 mask)
{
hw_atl_itr_irq_msk_clearlsw_set(self, LODWORD(mask));
hw_atl_itr_irq_status_clearlsw_set(self, LODWORD(mask));
atomic_inc(&self->dpc);
return aq_hw_err_from_flags(self);
}
static int hw_atl_b0_hw_irq_read(struct aq_hw_s *self, u64 *mask)
{
*mask = hw_atl_itr_irq_statuslsw_get(self);
return aq_hw_err_from_flags(self);
}
#define IS_FILTER_ENABLED(_F_) ((packet_filter & (_F_)) ? 1U : 0U)
static int hw_atl_b0_hw_packet_filter_set(struct aq_hw_s *self,
unsigned int packet_filter)
{
unsigned int i = 0U;
hw_atl_rpfl2promiscuous_mode_en_set(self, IS_FILTER_ENABLED(IFF_PROMISC));
hw_atl_rpfl2multicast_flr_en_set(self,
IS_FILTER_ENABLED(IFF_ALLMULTI), 0);
hw_atl_rpfl2_accept_all_mc_packets_set(self,
IS_FILTER_ENABLED(IFF_ALLMULTI));
hw_atl_rpfl2broadcast_en_set(self, IS_FILTER_ENABLED(IFF_BROADCAST));
self->aq_nic_cfg->is_mc_list_enabled = IS_FILTER_ENABLED(IFF_MULTICAST);
for (i = HW_ATL_B0_MAC_MIN; i < HW_ATL_B0_MAC_MAX; ++i)
hw_atl_rpfl2_uc_flr_en_set(self,
(self->aq_nic_cfg->is_mc_list_enabled &&
(i <= self->aq_nic_cfg->mc_list_count)) ?
1U : 0U, i);
return aq_hw_err_from_flags(self);
}
#undef IS_FILTER_ENABLED
static int hw_atl_b0_hw_multicast_list_set(struct aq_hw_s *self,
u8 ar_mac
[AQ_HW_MULTICAST_ADDRESS_MAX]
[ETH_ALEN],
u32 count)
{
int err = 0;
if (count > (HW_ATL_B0_MAC_MAX - HW_ATL_B0_MAC_MIN)) {
err = -EBADRQC;
goto err_exit;
}
for (self->aq_nic_cfg->mc_list_count = 0U;
self->aq_nic_cfg->mc_list_count < count;
++self->aq_nic_cfg->mc_list_count) {
u32 i = self->aq_nic_cfg->mc_list_count;
u32 h = (ar_mac[i][0] << 8) | (ar_mac[i][1]);
u32 l = (ar_mac[i][2] << 24) | (ar_mac[i][3] << 16) |
(ar_mac[i][4] << 8) | ar_mac[i][5];
hw_atl_rpfl2_uc_flr_en_set(self, 0U, HW_ATL_B0_MAC_MIN + i);
hw_atl_rpfl2unicast_dest_addresslsw_set(self,
l, HW_ATL_B0_MAC_MIN + i);
hw_atl_rpfl2unicast_dest_addressmsw_set(self,
h, HW_ATL_B0_MAC_MIN + i);
hw_atl_rpfl2_uc_flr_en_set(self,
(self->aq_nic_cfg->is_mc_list_enabled),
HW_ATL_B0_MAC_MIN + i);
}
err = aq_hw_err_from_flags(self);
err_exit:
return err;
}
static int hw_atl_b0_hw_interrupt_moderation_set(struct aq_hw_s *self)
{
unsigned int i = 0U;
u32 itr_tx = 2U;
u32 itr_rx = 2U;
switch (self->aq_nic_cfg->itr) {
case AQ_CFG_INTERRUPT_MODERATION_ON:
case AQ_CFG_INTERRUPT_MODERATION_AUTO:
hw_atl_tdm_tx_desc_wr_wb_irq_en_set(self, 0U);
hw_atl_tdm_tdm_intr_moder_en_set(self, 1U);
hw_atl_rdm_rx_desc_wr_wb_irq_en_set(self, 0U);
hw_atl_rdm_rdm_intr_moder_en_set(self, 1U);
if (self->aq_nic_cfg->itr == AQ_CFG_INTERRUPT_MODERATION_ON) {
/* HW timers are in 2us units */
int tx_max_timer = self->aq_nic_cfg->tx_itr / 2;
int tx_min_timer = tx_max_timer / 2;
int rx_max_timer = self->aq_nic_cfg->rx_itr / 2;
int rx_min_timer = rx_max_timer / 2;
tx_max_timer = min(HW_ATL_INTR_MODER_MAX, tx_max_timer);
tx_min_timer = min(HW_ATL_INTR_MODER_MIN, tx_min_timer);
rx_max_timer = min(HW_ATL_INTR_MODER_MAX, rx_max_timer);
rx_min_timer = min(HW_ATL_INTR_MODER_MIN, rx_min_timer);
itr_tx |= tx_min_timer << 0x8U;
itr_tx |= tx_max_timer << 0x10U;
itr_rx |= rx_min_timer << 0x8U;
itr_rx |= rx_max_timer << 0x10U;
} else {
static unsigned int hw_atl_b0_timers_table_tx_[][2] = {
{0xfU, 0xffU}, /* 10Gbit */
{0xfU, 0x1ffU}, /* 5Gbit */
{0xfU, 0x1ffU}, /* 5Gbit 5GS */
{0xfU, 0x1ffU}, /* 2.5Gbit */
{0xfU, 0x1ffU}, /* 1Gbit */
{0xfU, 0x1ffU}, /* 100Mbit */
};
static unsigned int hw_atl_b0_timers_table_rx_[][2] = {
{0x6U, 0x38U},/* 10Gbit */
{0xCU, 0x70U},/* 5Gbit */
{0xCU, 0x70U},/* 5Gbit 5GS */
{0x18U, 0xE0U},/* 2.5Gbit */
{0x30U, 0x80U},/* 1Gbit */
{0x4U, 0x50U},/* 100Mbit */
};
unsigned int speed_index =
hw_atl_utils_mbps_2_speed_index(
self->aq_link_status.mbps);
/* Update user visible ITR settings */
self->aq_nic_cfg->tx_itr = hw_atl_b0_timers_table_tx_
[speed_index][1] * 2;
self->aq_nic_cfg->rx_itr = hw_atl_b0_timers_table_rx_
[speed_index][1] * 2;
itr_tx |= hw_atl_b0_timers_table_tx_
[speed_index][0] << 0x8U;
itr_tx |= hw_atl_b0_timers_table_tx_
[speed_index][1] << 0x10U;
itr_rx |= hw_atl_b0_timers_table_rx_
[speed_index][0] << 0x8U;
itr_rx |= hw_atl_b0_timers_table_rx_
[speed_index][1] << 0x10U;
}
break;
case AQ_CFG_INTERRUPT_MODERATION_OFF:
hw_atl_tdm_tx_desc_wr_wb_irq_en_set(self, 1U);
hw_atl_tdm_tdm_intr_moder_en_set(self, 0U);
hw_atl_rdm_rx_desc_wr_wb_irq_en_set(self, 1U);
hw_atl_rdm_rdm_intr_moder_en_set(self, 0U);
itr_tx = 0U;
itr_rx = 0U;
break;
}
for (i = HW_ATL_B0_RINGS_MAX; i--;) {
hw_atl_reg_tx_intr_moder_ctrl_set(self, itr_tx, i);
hw_atl_reg_rx_intr_moder_ctrl_set(self, itr_rx, i);
}
return aq_hw_err_from_flags(self);
}
static int hw_atl_b0_hw_stop(struct aq_hw_s *self)
{
hw_atl_b0_hw_irq_disable(self, HW_ATL_B0_INT_MASK);
/* Invalidate Descriptor Cache to prevent writing to the cached
* descriptors and to the data pointer of those descriptors
*/
hw_atl_rdm_rx_dma_desc_cache_init_set(self, 1);
return aq_hw_err_from_flags(self);
}
static int hw_atl_b0_hw_ring_tx_stop(struct aq_hw_s *self,
struct aq_ring_s *ring)
{
hw_atl_tdm_tx_desc_en_set(self, 0U, ring->idx);
return aq_hw_err_from_flags(self);
}
static int hw_atl_b0_hw_ring_rx_stop(struct aq_hw_s *self,
struct aq_ring_s *ring)
{
hw_atl_rdm_rx_desc_en_set(self, 0U, ring->idx);
return aq_hw_err_from_flags(self);
}
const struct aq_hw_ops hw_atl_ops_b0 = {
.hw_set_mac_address = hw_atl_b0_hw_mac_addr_set,
.hw_init = hw_atl_b0_hw_init,
.hw_reset = hw_atl_b0_hw_reset,
.hw_start = hw_atl_b0_hw_start,
.hw_ring_tx_start = hw_atl_b0_hw_ring_tx_start,
.hw_ring_tx_stop = hw_atl_b0_hw_ring_tx_stop,
.hw_ring_rx_start = hw_atl_b0_hw_ring_rx_start,
.hw_ring_rx_stop = hw_atl_b0_hw_ring_rx_stop,
.hw_stop = hw_atl_b0_hw_stop,
.hw_ring_tx_xmit = hw_atl_b0_hw_ring_tx_xmit,
.hw_ring_tx_head_update = hw_atl_b0_hw_ring_tx_head_update,
.hw_ring_rx_receive = hw_atl_b0_hw_ring_rx_receive,
.hw_ring_rx_fill = hw_atl_b0_hw_ring_rx_fill,
.hw_irq_enable = hw_atl_b0_hw_irq_enable,
.hw_irq_disable = hw_atl_b0_hw_irq_disable,
.hw_irq_read = hw_atl_b0_hw_irq_read,
.hw_ring_rx_init = hw_atl_b0_hw_ring_rx_init,
.hw_ring_tx_init = hw_atl_b0_hw_ring_tx_init,
.hw_packet_filter_set = hw_atl_b0_hw_packet_filter_set,
.hw_multicast_list_set = hw_atl_b0_hw_multicast_list_set,
.hw_interrupt_moderation_set = hw_atl_b0_hw_interrupt_moderation_set,
.hw_rss_set = hw_atl_b0_hw_rss_set,
.hw_rss_hash_set = hw_atl_b0_hw_rss_hash_set,
.hw_get_regs = hw_atl_utils_hw_get_regs,
.hw_get_hw_stats = hw_atl_utils_get_hw_stats,
.hw_get_fw_version = hw_atl_utils_get_fw_version,
.hw_set_offload = hw_atl_b0_hw_offload_set,
.hw_set_fc = hw_atl_b0_set_fc,
};
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