net: ethernet: aquantia: Atlantic A0 and B0 specific functions.
authorDavid VomLehn <vomlehn@texas.net>
Tue, 24 Jan 2017 06:09:13 +0000 (22:09 -0800)
committerDavid S. Miller <davem@davemloft.net>
Tue, 24 Jan 2017 20:03:39 +0000 (15:03 -0500)
Add Atlantic A0 and B0 specific functions.

Signed-off-by: Alexander Loktionov <Alexander.Loktionov@aquantia.com>
Signed-off-by: Dmitrii Tarakanov <Dmitrii.Tarakanov@aquantia.com>
Signed-off-by: Pavel Belous <Pavel.Belous@aquantia.com>
Signed-off-by: Dmitry Bezrukov <Dmitry.Bezrukov@aquantia.com>
Signed-off-by: David M. VomLehn <vomlehn@texas.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c [new file with mode: 0644]
drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.h [new file with mode: 0644]
drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0_internal.h [new file with mode: 0644]
drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c [new file with mode: 0644]
drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.h [new file with mode: 0644]
drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0_internal.h [new file with mode: 0644]

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
new file mode 100644 (file)
index 0000000..1f38805
--- /dev/null
@@ -0,0 +1,905 @@
+/*
+ * 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_a0.c: Definition of Atlantic hardware specific functions. */
+
+#include "../aq_hw.h"
+#include "../aq_hw_utils.h"
+#include "../aq_ring.h"
+#include "hw_atl_a0.h"
+#include "hw_atl_utils.h"
+#include "hw_atl_llh.h"
+#include "hw_atl_a0_internal.h"
+
+static int hw_atl_a0_get_hw_caps(struct aq_hw_s *self,
+                                struct aq_hw_caps_s *aq_hw_caps)
+{
+       memcpy(aq_hw_caps, &hw_atl_a0_hw_caps_, sizeof(*aq_hw_caps));
+       return 0;
+}
+
+static struct aq_hw_s *hw_atl_a0_create(struct aq_pci_func_s *aq_pci_func,
+                                       unsigned int port,
+                                       struct aq_hw_ops *ops)
+{
+       struct hw_atl_s *self = NULL;
+
+       self = kzalloc(sizeof(*self), GFP_KERNEL);
+       if (!self)
+               goto err_exit;
+
+       self->base.aq_pci_func = aq_pci_func;
+
+       self->base.not_ff_addr = 0x10U;
+
+err_exit:
+       return (struct aq_hw_s *)self;
+}
+
+static void hw_atl_a0_destroy(struct aq_hw_s *self)
+{
+       kfree(self);
+}
+
+static int hw_atl_a0_hw_reset(struct aq_hw_s *self)
+{
+       int err = 0;
+
+       glb_glb_reg_res_dis_set(self, 1U);
+       pci_pci_reg_res_dis_set(self, 0U);
+       rx_rx_reg_res_dis_set(self, 0U);
+       tx_tx_reg_res_dis_set(self, 0U);
+
+       HW_ATL_FLUSH();
+       glb_soft_res_set(self, 1);
+
+       /* check 10 times by 1ms */
+       AQ_HW_WAIT_FOR(glb_soft_res_get(self) == 0, 1000U, 10U);
+       if (err < 0)
+               goto err_exit;
+
+       itr_irq_reg_res_dis_set(self, 0U);
+       itr_res_irq_set(self, 1U);
+
+       /* check 10 times by 1ms */
+       AQ_HW_WAIT_FOR(itr_res_irq_get(self) == 0, 1000U, 10U);
+       if (err < 0)
+               goto err_exit;
+
+       hw_atl_utils_mpi_set(self, MPI_RESET, 0x0U);
+
+       err = aq_hw_err_from_flags(self);
+
+err_exit:
+       return err;
+}
+
+static int hw_atl_a0_hw_qos_set(struct aq_hw_s *self)
+{
+       u32 tc = 0U;
+       u32 buff_size = 0U;
+       unsigned int i_priority = 0U;
+       bool is_rx_flow_control = false;
+
+       /* TPS Descriptor rate init */
+       tps_tx_pkt_shed_desc_rate_curr_time_res_set(self, 0x0U);
+       tps_tx_pkt_shed_desc_rate_lim_set(self, 0xA);
+
+       /* TPS VM init */
+       tps_tx_pkt_shed_desc_vm_arb_mode_set(self, 0U);
+
+       /* TPS TC credits init */
+       tps_tx_pkt_shed_desc_tc_arb_mode_set(self, 0U);
+       tps_tx_pkt_shed_data_arb_mode_set(self, 0U);
+
+       tps_tx_pkt_shed_tc_data_max_credit_set(self, 0xFFF, 0U);
+       tps_tx_pkt_shed_tc_data_weight_set(self, 0x64, 0U);
+       tps_tx_pkt_shed_desc_tc_max_credit_set(self, 0x50, 0U);
+       tps_tx_pkt_shed_desc_tc_weight_set(self, 0x1E, 0U);
+
+       /* Tx buf size */
+       buff_size = HW_ATL_A0_TXBUF_MAX;
+
+       tpb_tx_pkt_buff_size_per_tc_set(self, buff_size, tc);
+       tpb_tx_buff_hi_threshold_per_tc_set(self,
+                                           (buff_size * (1024 / 32U) * 66U) /
+                                           100U, tc);
+       tpb_tx_buff_lo_threshold_per_tc_set(self,
+                                           (buff_size * (1024 / 32U) * 50U) /
+                                           100U, tc);
+
+       /* QoS Rx buf size per TC */
+       tc = 0;
+       is_rx_flow_control = (AQ_NIC_FC_RX & self->aq_nic_cfg->flow_control);
+       buff_size = HW_ATL_A0_RXBUF_MAX;
+
+       rpb_rx_pkt_buff_size_per_tc_set(self, buff_size, tc);
+       rpb_rx_buff_hi_threshold_per_tc_set(self,
+                                           (buff_size *
+                                           (1024U / 32U) * 66U) /
+                                           100U, tc);
+       rpb_rx_buff_lo_threshold_per_tc_set(self,
+                                           (buff_size *
+                                           (1024U / 32U) * 50U) /
+                                           100U, tc);
+       rpb_rx_xoff_en_per_tc_set(self, is_rx_flow_control ? 1U : 0U, tc);
+
+       /* QoS 802.1p priority -> TC mapping */
+       for (i_priority = 8U; i_priority--;)
+               rpf_rpb_user_priority_tc_map_set(self, i_priority, 0U);
+
+       return aq_hw_err_from_flags(self);
+}
+
+static int hw_atl_a0_hw_rss_hash_set(struct aq_hw_s *self,
+                                    struct aq_rss_parameters *rss_params)
+{
+       struct aq_nic_cfg_s *cfg = NULL;
+       int err = 0;
+       unsigned int i = 0U;
+       unsigned int addr = 0U;
+
+       cfg = self->aq_nic_cfg;
+
+       for (i = 10, addr = 0U; i--; ++addr) {
+               u32 key_data = cfg->is_rss ?
+                       __swab32(rss_params->hash_secret_key[i]) : 0U;
+               rpf_rss_key_wr_data_set(self, key_data);
+               rpf_rss_key_addr_set(self, addr);
+               rpf_rss_key_wr_en_set(self, 1U);
+               AQ_HW_WAIT_FOR(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_a0_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_A0_RSS_REDIRECTION_MAX *
+                                       HW_ATL_A0_RSS_REDIRECTION_BITS / 16U)];
+
+       memset(bitary, 0, sizeof(bitary));
+
+       for (i = HW_ATL_A0_RSS_REDIRECTION_MAX; i--; ) {
+               (*(u32 *)(bitary + ((i * 3U) / 16U))) |=
+                       ((indirection_table[i] % num_rss_queues) <<
+                       ((i * 3U) & 0xFU));
+       }
+
+       for (i = AQ_DIMOF(bitary); i--;) {
+               rpf_rss_redir_tbl_wr_data_set(self, bitary[i]);
+               rpf_rss_redir_tbl_addr_set(self, i);
+               rpf_rss_redir_wr_en_set(self, 1U);
+               AQ_HW_WAIT_FOR(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_a0_hw_offload_set(struct aq_hw_s *self,
+                                   struct aq_nic_cfg_s *aq_nic_cfg)
+{
+       int err = 0;
+
+       /* TX checksums offloads*/
+       tpo_ipv4header_crc_offload_en_set(self, 1);
+       tpo_tcp_udp_crc_offload_en_set(self, 1);
+       if (err < 0)
+               goto err_exit;
+
+       /* RX checksums offloads*/
+       rpo_ipv4header_crc_offload_en_set(self, 1);
+       rpo_tcp_udp_crc_offload_en_set(self, 1);
+       if (err < 0)
+               goto err_exit;
+
+       /* LSO offloads*/
+       tdm_large_send_offload_en_set(self, 0xFFFFFFFFU);
+       if (err < 0)
+               goto err_exit;
+
+       err = aq_hw_err_from_flags(self);
+
+err_exit:
+       return err;
+}
+
+static int hw_atl_a0_hw_init_tx_path(struct aq_hw_s *self)
+{
+       thm_lso_tcp_flag_of_first_pkt_set(self, 0x0FF6U);
+       thm_lso_tcp_flag_of_middle_pkt_set(self, 0x0FF6U);
+       thm_lso_tcp_flag_of_last_pkt_set(self, 0x0F7FU);
+
+       /* Tx interrupts */
+       tdm_tx_desc_wr_wb_irq_en_set(self, 1U);
+
+       /* misc */
+       aq_hw_write_reg(self, 0x00007040U, IS_CHIP_FEATURE(TPO2) ?
+                       0x00010000U : 0x00000000U);
+       tdm_tx_dca_en_set(self, 0U);
+       tdm_tx_dca_mode_set(self, 0U);
+
+       tpb_tx_path_scp_ins_en_set(self, 1U);
+
+       return aq_hw_err_from_flags(self);
+}
+
+static int hw_atl_a0_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 */
+       rpb_rpf_rx_traf_class_mode_set(self, 1U);
+
+       /* Rx flow control */
+       rpb_rx_flow_ctl_mode_set(self, 1U);
+
+       /* RSS Ring selection */
+       reg_rx_flr_rss_control1set(self, cfg->is_rss ?
+                                       0xB3333333U : 0x00000000U);
+
+       /* Multicast filters */
+       for (i = HW_ATL_A0_MAC_MAX; i--;) {
+               rpfl2_uc_flr_en_set(self, (i == 0U) ? 1U : 0U, i);
+               rpfl2unicast_flr_act_set(self, 1U, i);
+       }
+
+       reg_rx_flr_mcst_flr_msk_set(self, 0x00000000U);
+       reg_rx_flr_mcst_flr_set(self, 0x00010FFFU, 0U);
+
+       /* Vlan filters */
+       rpf_vlan_outer_etht_set(self, 0x88A8U);
+       rpf_vlan_inner_etht_set(self, 0x8100U);
+       rpf_vlan_prom_mode_en_set(self, 1);
+
+       /* Rx Interrupts */
+       rdm_rx_desc_wr_wb_irq_en_set(self, 1U);
+
+       /* misc */
+       rpfl2broadcast_flr_act_set(self, 1U);
+       rpfl2broadcast_count_threshold_set(self, 0xFFFFU & (~0U / 256U));
+
+       rdm_rx_dca_en_set(self, 0U);
+       rdm_rx_dca_mode_set(self, 0U);
+
+       return aq_hw_err_from_flags(self);
+}
+
+static int hw_atl_a0_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];
+
+       rpfl2_uc_flr_en_set(self, 0U, HW_ATL_A0_MAC);
+       rpfl2unicast_dest_addresslsw_set(self, l, HW_ATL_A0_MAC);
+       rpfl2unicast_dest_addressmsw_set(self, h, HW_ATL_A0_MAC);
+       rpfl2_uc_flr_en_set(self, 1U, HW_ATL_A0_MAC);
+
+       err = aq_hw_err_from_flags(self);
+
+err_exit:
+       return err;
+}
+
+static int hw_atl_a0_hw_init(struct aq_hw_s *self,
+                            struct aq_nic_cfg_s *aq_nic_cfg,
+                            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;
+
+       self->aq_nic_cfg = aq_nic_cfg;
+
+       hw_atl_utils_hw_chip_features_init(self,
+                                          &PHAL_ATLANTIC_A0->chip_features);
+
+       hw_atl_a0_hw_init_tx_path(self);
+       hw_atl_a0_hw_init_rx_path(self);
+
+       hw_atl_a0_hw_mac_addr_set(self, mac_addr);
+
+       hw_atl_utils_mpi_set(self, MPI_INIT, aq_nic_cfg->link_speed_msk);
+
+       reg_tx_dma_debug_ctl_set(self, 0x800000b8U);
+       reg_tx_dma_debug_ctl_set(self, 0x000000b8U);
+
+       hw_atl_a0_hw_qos_set(self);
+       hw_atl_a0_hw_rss_set(self, &aq_nic_cfg->aq_rss);
+       hw_atl_a0_hw_rss_hash_set(self, &aq_nic_cfg->aq_rss);
+
+       err = aq_hw_err_from_flags(self);
+       if (err < 0)
+               goto err_exit;
+
+       /* Interrupts */
+       reg_irq_glb_ctl_set(self,
+                           aq_hw_atl_igcr_table_[aq_nic_cfg->irq_type]
+                                                [(aq_nic_cfg->vecs > 1U) ?
+                                                1 : 0]);
+
+       itr_irq_auto_masklsw_set(self, aq_nic_cfg->aq_hw_caps->irq_mask);
+
+       /* Interrupts */
+       reg_gen_irq_map_set(self,
+                           ((HW_ATL_A0_ERR_INT << 0x18) | (1U << 0x1F)) |
+                           ((HW_ATL_A0_ERR_INT << 0x10) | (1U << 0x17)) |
+                           ((HW_ATL_A0_ERR_INT << 8) | (1U << 0xF)) |
+                           ((HW_ATL_A0_ERR_INT) | (1U << 0x7)), 0U);
+
+       hw_atl_a0_hw_offload_set(self, aq_nic_cfg);
+
+err_exit:
+       return err;
+}
+
+static int hw_atl_a0_hw_ring_tx_start(struct aq_hw_s *self,
+                                     struct aq_ring_s *ring)
+{
+       tdm_tx_desc_en_set(self, 1, ring->idx);
+       return aq_hw_err_from_flags(self);
+}
+
+static int hw_atl_a0_hw_ring_rx_start(struct aq_hw_s *self,
+                                     struct aq_ring_s *ring)
+{
+       rdm_rx_desc_en_set(self, 1, ring->idx);
+       return aq_hw_err_from_flags(self);
+}
+
+static int hw_atl_a0_hw_start(struct aq_hw_s *self)
+{
+       tpb_tx_buff_en_set(self, 1);
+       rpb_rx_buff_en_set(self, 1);
+       return aq_hw_err_from_flags(self);
+}
+
+static int hw_atl_a0_hw_tx_ring_tail_update(struct aq_hw_s *self,
+                                           struct aq_ring_s *ring)
+{
+       reg_tx_dma_desc_tail_ptr_set(self, ring->sw_tail, ring->idx);
+       return 0;
+}
+
+static int hw_atl_a0_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_A0_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_A0_TXD_CTL_CMD_TCP |
+                               HW_ATL_A0_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;
+               } else {
+                       buff_pa_len = buff->len;
+
+                       txd->buf_addr = buff->pa;
+                       txd->ctl |= (HW_ATL_A0_TXD_CTL_BLEN &
+                                               ((u32)buff_pa_len << 4));
+                       txd->ctl |= HW_ATL_A0_TXD_CTL_DESC_TYPE_TXD;
+                       /* PAY_LEN */
+                       txd->ctl2 |= HW_ATL_A0_TXD_CTL2_LEN & (pkt_len << 14);
+
+                       if (is_gso) {
+                               txd->ctl |= HW_ATL_A0_TXD_CTL_CMD_LSO;
+                               txd->ctl2 |= HW_ATL_A0_TXD_CTL2_CTX_EN;
+                       }
+
+                       /* Tx checksum offloads */
+                       if (buff->is_ip_cso)
+                               txd->ctl |= HW_ATL_A0_TXD_CTL_CMD_IPCSO;
+
+                       if (buff->is_udp_cso || buff->is_tcp_cso)
+                               txd->ctl |= HW_ATL_A0_TXD_CTL_CMD_TUCSO;
+
+                       if (unlikely(buff->is_eop)) {
+                               txd->ctl |= HW_ATL_A0_TXD_CTL_EOP;
+                               txd->ctl |= HW_ATL_A0_TXD_CTL_CMD_WB;
+                       }
+               }
+
+               ring->sw_tail = aq_ring_next_dx(ring, ring->sw_tail);
+       }
+
+       hw_atl_a0_hw_tx_ring_tail_update(self, ring);
+       return aq_hw_err_from_flags(self);
+}
+
+static int hw_atl_a0_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);
+
+       rdm_rx_desc_en_set(self, false, aq_ring->idx);
+
+       rdm_rx_desc_head_splitting_set(self, 0U, aq_ring->idx);
+
+       reg_rx_dma_desc_base_addresslswset(self, dma_desc_addr_lsw,
+                                          aq_ring->idx);
+
+       reg_rx_dma_desc_base_addressmswset(self,
+                                          dma_desc_addr_msw, aq_ring->idx);
+
+       rdm_rx_desc_len_set(self, aq_ring->size / 8U, aq_ring->idx);
+
+       rdm_rx_desc_data_buff_size_set(self,
+                                      AQ_CFG_RX_FRAME_MAX / 1024U,
+                                      aq_ring->idx);
+
+       rdm_rx_desc_head_buff_size_set(self, 0U, aq_ring->idx);
+       rdm_rx_desc_head_splitting_set(self, 0U, aq_ring->idx);
+       rpo_rx_desc_vlan_stripping_set(self, 0U, aq_ring->idx);
+
+       /* Rx ring set mode */
+
+       /* Mapping interrupt vector */
+       itr_irq_map_rx_set(self, aq_ring_param->vec_idx, aq_ring->idx);
+       itr_irq_map_en_rx_set(self, true, aq_ring->idx);
+
+       rdm_cpu_id_set(self, aq_ring_param->cpu, aq_ring->idx);
+       rdm_rx_desc_dca_en_set(self, 0U, aq_ring->idx);
+       rdm_rx_head_dca_en_set(self, 0U, aq_ring->idx);
+       rdm_rx_pld_dca_en_set(self, 0U, aq_ring->idx);
+
+       return aq_hw_err_from_flags(self);
+}
+
+static int hw_atl_a0_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);
+
+       reg_tx_dma_desc_base_addresslswset(self, dma_desc_lsw_addr,
+                                          aq_ring->idx);
+
+       reg_tx_dma_desc_base_addressmswset(self, dma_desc_msw_addr,
+                                          aq_ring->idx);
+
+       tdm_tx_desc_len_set(self, aq_ring->size / 8U, aq_ring->idx);
+
+       hw_atl_a0_hw_tx_ring_tail_update(self, aq_ring);
+
+       /* Set Tx threshold */
+       tdm_tx_desc_wr_wb_threshold_set(self, 0U, aq_ring->idx);
+
+       /* Mapping interrupt vector */
+       itr_irq_map_tx_set(self, aq_ring_param->vec_idx, aq_ring->idx);
+       itr_irq_map_en_tx_set(self, true, aq_ring->idx);
+
+       tdm_cpu_id_set(self, aq_ring_param->cpu, aq_ring->idx);
+       tdm_tx_desc_dca_en_set(self, 0U, aq_ring->idx);
+
+       return aq_hw_err_from_flags(self);
+}
+
+static int hw_atl_a0_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_A0_RXD_SIZE];
+
+               struct aq_ring_buff_s *buff = &ring->buff_ring[sw_tail_old];
+
+               rxd->buf_addr = buff->pa;
+               rxd->hdr_addr = 0U;
+       }
+
+       reg_rx_dma_desc_tail_ptr_set(self, sw_tail_old, ring->idx);
+
+       return aq_hw_err_from_flags(self);
+}
+
+static int hw_atl_a0_hw_ring_tx_head_update(struct aq_hw_s *self,
+                                           struct aq_ring_s *ring)
+{
+       int err = 0;
+       unsigned int hw_head_ = tdm_tx_desc_head_ptr_get(self, ring->idx);
+
+       if (aq_utils_obj_test(&self->header.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_a0_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_A0_RXD_SIZE];
+
+               unsigned int is_err = 1U;
+               unsigned int is_rx_check_sum_enabled = 0U;
+               unsigned int pkt_type = 0U;
+
+               if (!(rxd_wb->status & 0x5U)) { /* RxD is not done */
+                       if ((1U << 4) &
+                               reg_rx_dma_desc_status_get(self, ring->idx)) {
+                       rdm_rx_desc_en_set(self, false, ring->idx);
+                       rdm_rx_desc_res_set(self, true, ring->idx);
+                       rdm_rx_desc_res_set(self, false, ring->idx);
+                       rdm_rx_desc_en_set(self, true, ring->idx);
+                       }
+
+                       if (ring->hw_head ||
+                           (rdm_rx_desc_head_ptr_get(self, ring->idx) < 2U)) {
+                               break;
+                       } else if (!(rxd_wb->status & 0x1U)) {
+                               struct hw_atl_rxd_wb_s *rxd_wb1 =
+                                       (struct hw_atl_rxd_wb_s *)
+                                       (&ring->dx_ring[(1U) *
+                                               HW_ATL_A0_RXD_SIZE]);
+
+                               if ((rxd_wb1->status & 0x1U)) {
+                                       rxd_wb->pkt_len = 1514U;
+                                       rxd_wb->status = 3U;
+                               } else {
+                                       break;
+                               }
+                       }
+               }
+
+               buff = &ring->buff_ring[ring->hw_head];
+
+               if (0x3U != (rxd_wb->status & 0x3U))
+                       rxd_wb->status |= 4;
+
+               is_err = (0x0000001CU & rxd_wb->status);
+               is_rx_check_sum_enabled = (rxd_wb->type) & (0x3U << 19);
+               pkt_type = 0xFFU & (rxd_wb->type >> 4);
+
+               if (is_rx_check_sum_enabled) {
+                       if (0x0U == (pkt_type & 0x3U))
+                               buff->is_ip_cso = (is_err & 0x08U) ? 0 : 1;
+
+                       if (0x4U == (pkt_type & 0x1CU))
+                               buff->is_udp_cso = (is_err & 0x10U) ? 0 : 1;
+                       else if (0x0U == (pkt_type & 0x1CU))
+                               buff->is_tcp_cso = (is_err & 0x10U) ? 0 : 1;
+               }
+
+               is_err &= ~0x18U;
+               is_err &= ~0x04U;
+
+               dma_unmap_page(ndev, buff->pa, buff->len, DMA_FROM_DEVICE);
+
+               if (is_err || rxd_wb->type & 0x1000U) {
+                       /* status 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_A0_RXD_WB_STAT2_EOP & rxd_wb->status) {
+                               buff->len = (rxd_wb->pkt_len &
+                                               (AQ_CFG_RX_FRAME_MAX - 1U));
+                               buff->len = buff->len ?
+                                       buff->len : AQ_CFG_RX_FRAME_MAX;
+                               buff->next = 0U;
+                               buff->is_eop = 1U;
+                       } 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_a0_hw_irq_enable(struct aq_hw_s *self, u64 mask)
+{
+       itr_irq_msk_setlsw_set(self, LODWORD(mask) |
+                              (1U << HW_ATL_A0_ERR_INT));
+       return aq_hw_err_from_flags(self);
+}
+
+static int hw_atl_a0_hw_irq_disable(struct aq_hw_s *self, u64 mask)
+{
+       itr_irq_msk_clearlsw_set(self, LODWORD(mask));
+       itr_irq_status_clearlsw_set(self, LODWORD(mask));
+
+       if ((1U << 16) & reg_gen_irq_status_get(self))
+
+               atomic_inc(&PHAL_ATLANTIC_A0->dpc);
+
+       return aq_hw_err_from_flags(self);
+}
+
+static int hw_atl_a0_hw_irq_read(struct aq_hw_s *self, u64 *mask)
+{
+       *mask = 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_a0_hw_packet_filter_set(struct aq_hw_s *self,
+                                         unsigned int packet_filter)
+{
+       unsigned int i = 0U;
+
+       rpfl2promiscuous_mode_en_set(self, IS_FILTER_ENABLED(IFF_PROMISC));
+       rpfl2multicast_flr_en_set(self, IS_FILTER_ENABLED(IFF_MULTICAST), 0);
+       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_A0_MAC_MIN; i < HW_ATL_A0_MAC_MAX; ++i)
+               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_a0_hw_multicast_list_set(struct aq_hw_s *self,
+                                          u8 ar_mac
+                                          [AQ_CFG_MULTICAST_ADDRESS_MAX]
+                                          [ETH_ALEN],
+                                          u32 count)
+{
+       int err = 0;
+
+       if (count > (HW_ATL_A0_MAC_MAX - HW_ATL_A0_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];
+
+               rpfl2_uc_flr_en_set(self, 0U, HW_ATL_A0_MAC_MIN + i);
+
+               rpfl2unicast_dest_addresslsw_set(self,
+                                                l, HW_ATL_A0_MAC_MIN + i);
+
+               rpfl2unicast_dest_addressmsw_set(self,
+                                                h, HW_ATL_A0_MAC_MIN + i);
+
+               rpfl2_uc_flr_en_set(self,
+                                   (self->aq_nic_cfg->is_mc_list_enabled),
+                                   HW_ATL_A0_MAC_MIN + i);
+       }
+
+       err = aq_hw_err_from_flags(self);
+
+err_exit:
+       return err;
+}
+
+static int hw_atl_a0_hw_interrupt_moderation_set(struct aq_hw_s *self,
+                                                bool itr_enabled)
+{
+       unsigned int i = 0U;
+
+       if (itr_enabled && self->aq_nic_cfg->itr) {
+               if (self->aq_nic_cfg->itr != 0xFFFFU) {
+                       u32 itr_ = (self->aq_nic_cfg->itr >> 1);
+
+                       itr_ = min(AQ_CFG_IRQ_MASK, itr_);
+
+                       PHAL_ATLANTIC_A0->itr_rx = 0x80000000U |
+                                       (itr_ << 0x10);
+               } else  {
+                       u32 n = 0xFFFFU & aq_hw_read_reg(self, 0x00002A00U);
+
+                       if (n < self->aq_link_status.mbps) {
+                               PHAL_ATLANTIC_A0->itr_rx = 0U;
+                       } else {
+                               static unsigned int hw_timers_tbl_[] = {
+                                       0x01CU, /* 10Gbit */
+                                       0x039U, /* 5Gbit */
+                                       0x039U, /* 5Gbit 5GS */
+                                       0x073U, /* 2.5Gbit */
+                                       0x120U, /* 1Gbit */
+                                       0x1FFU, /* 100Mbit */
+                               };
+
+                               unsigned int speed_index =
+                                       hw_atl_utils_mbps_2_speed_index(
+                                               self->aq_link_status.mbps);
+
+                               PHAL_ATLANTIC_A0->itr_rx =
+                                       0x80000000U |
+                                       (hw_timers_tbl_[speed_index] << 0x10U);
+                       }
+
+                       aq_hw_write_reg(self, 0x00002A00U, 0x40000000U);
+                       aq_hw_write_reg(self, 0x00002A00U, 0x8D000000U);
+               }
+       } else {
+               PHAL_ATLANTIC_A0->itr_rx = 0U;
+       }
+
+       for (i = HW_ATL_A0_RINGS_MAX; i--;)
+               reg_irq_thr_set(self, PHAL_ATLANTIC_A0->itr_rx, i);
+
+       return aq_hw_err_from_flags(self);
+}
+
+static int hw_atl_a0_hw_stop(struct aq_hw_s *self)
+{
+       hw_atl_a0_hw_irq_disable(self, HW_ATL_A0_INT_MASK);
+       return aq_hw_err_from_flags(self);
+}
+
+static int hw_atl_a0_hw_ring_tx_stop(struct aq_hw_s *self,
+                                    struct aq_ring_s *ring)
+{
+       tdm_tx_desc_en_set(self, 0U, ring->idx);
+       return aq_hw_err_from_flags(self);
+}
+
+static int hw_atl_a0_hw_ring_rx_stop(struct aq_hw_s *self,
+                                    struct aq_ring_s *ring)
+{
+       rdm_rx_desc_en_set(self, 0U, ring->idx);
+       return aq_hw_err_from_flags(self);
+}
+
+static int hw_atl_a0_hw_set_speed(struct aq_hw_s *self, u32 speed)
+{
+       int err = 0;
+
+       err = hw_atl_utils_mpi_set_speed(self, speed, MPI_INIT);
+       if (err < 0)
+               goto err_exit;
+
+err_exit:
+       return err;
+}
+
+static struct aq_hw_ops hw_atl_ops_ = {
+       .create               = hw_atl_a0_create,
+       .destroy              = hw_atl_a0_destroy,
+       .get_hw_caps          = hw_atl_a0_get_hw_caps,
+
+       .hw_get_mac_permanent = hw_atl_utils_get_mac_permanent,
+       .hw_set_mac_address   = hw_atl_a0_hw_mac_addr_set,
+       .hw_get_link_status   = hw_atl_utils_mpi_get_link_status,
+       .hw_set_link_speed    = hw_atl_a0_hw_set_speed,
+       .hw_init              = hw_atl_a0_hw_init,
+       .hw_deinit            = hw_atl_utils_hw_deinit,
+       .hw_set_power         = hw_atl_utils_hw_set_power,
+       .hw_reset             = hw_atl_a0_hw_reset,
+       .hw_start             = hw_atl_a0_hw_start,
+       .hw_ring_tx_start     = hw_atl_a0_hw_ring_tx_start,
+       .hw_ring_tx_stop      = hw_atl_a0_hw_ring_tx_stop,
+       .hw_ring_rx_start     = hw_atl_a0_hw_ring_rx_start,
+       .hw_ring_rx_stop      = hw_atl_a0_hw_ring_rx_stop,
+       .hw_stop              = hw_atl_a0_hw_stop,
+
+       .hw_ring_tx_xmit         = hw_atl_a0_hw_ring_tx_xmit,
+       .hw_ring_tx_head_update  = hw_atl_a0_hw_ring_tx_head_update,
+
+       .hw_ring_rx_receive      = hw_atl_a0_hw_ring_rx_receive,
+       .hw_ring_rx_fill         = hw_atl_a0_hw_ring_rx_fill,
+
+       .hw_irq_enable           = hw_atl_a0_hw_irq_enable,
+       .hw_irq_disable          = hw_atl_a0_hw_irq_disable,
+       .hw_irq_read             = hw_atl_a0_hw_irq_read,
+
+       .hw_ring_rx_init             = hw_atl_a0_hw_ring_rx_init,
+       .hw_ring_tx_init             = hw_atl_a0_hw_ring_tx_init,
+       .hw_packet_filter_set        = hw_atl_a0_hw_packet_filter_set,
+       .hw_multicast_list_set       = hw_atl_a0_hw_multicast_list_set,
+       .hw_interrupt_moderation_set = hw_atl_a0_hw_interrupt_moderation_set,
+       .hw_rss_set                  = hw_atl_a0_hw_rss_set,
+       .hw_rss_hash_set             = hw_atl_a0_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,
+};
+
+struct aq_hw_ops *hw_atl_a0_get_ops_by_id(struct pci_dev *pdev)
+{
+       bool is_vid_ok = (pdev->vendor == PCI_VENDOR_ID_AQUANTIA);
+       bool is_did_ok = ((pdev->device == HW_ATL_DEVICE_ID_0001) ||
+                       (pdev->device == HW_ATL_DEVICE_ID_D100) ||
+                       (pdev->device == HW_ATL_DEVICE_ID_D107) ||
+                       (pdev->device == HW_ATL_DEVICE_ID_D108) ||
+                       (pdev->device == HW_ATL_DEVICE_ID_D109));
+
+       bool is_rev_ok = (pdev->revision == 1U);
+
+       return (is_vid_ok && is_did_ok && is_rev_ok) ? &hw_atl_ops_ : NULL;
+}
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.h b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.h
new file mode 100644 (file)
index 0000000..6e1d527
--- /dev/null
@@ -0,0 +1,34 @@
+/*
+ * 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_a0.h: Declaration of abstract interface for Atlantic hardware
+ * specific functions.
+ */
+
+#ifndef HW_ATL_A0_H
+#define HW_ATL_A0_H
+
+#include "../aq_common.h"
+
+#ifndef PCI_VENDOR_ID_AQUANTIA
+
+#define PCI_VENDOR_ID_AQUANTIA  0x1D6A
+#define HW_ATL_DEVICE_ID_0001   0x0001
+#define HW_ATL_DEVICE_ID_D100   0xD100
+#define HW_ATL_DEVICE_ID_D107   0xD107
+#define HW_ATL_DEVICE_ID_D108   0xD108
+#define HW_ATL_DEVICE_ID_D109   0xD109
+
+#define HW_ATL_NIC_NAME "aQuantia AQtion 5Gbit Network Adapter"
+
+#endif
+
+struct aq_hw_ops *hw_atl_a0_get_ops_by_id(struct pci_dev *pdev);
+
+#endif /* HW_ATL_A0_H */
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
new file mode 100644 (file)
index 0000000..1093ea1
--- /dev/null
@@ -0,0 +1,155 @@
+/*
+ * 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_a0_internal.h: Definition of Atlantic A0 chip specific
+ * constants.
+ */
+
+#ifndef HW_ATL_A0_INTERNAL_H
+#define HW_ATL_A0_INTERNAL_H
+
+#include "../aq_common.h"
+
+#define HW_ATL_A0_MTU_JUMBO 9014U
+
+#define HW_ATL_A0_TX_RINGS 4U
+#define HW_ATL_A0_RX_RINGS 4U
+
+#define HW_ATL_A0_RINGS_MAX 32U
+#define HW_ATL_A0_TXD_SIZE  16U
+#define HW_ATL_A0_RXD_SIZE  16U
+
+#define HW_ATL_A0_MAC      0U
+#define HW_ATL_A0_MAC_MIN  1U
+#define HW_ATL_A0_MAC_MAX  33U
+
+/* interrupts */
+#define HW_ATL_A0_ERR_INT 8U
+#define HW_ATL_A0_INT_MASK  0xFFFFFFFFU
+
+#define HW_ATL_A0_TXD_CTL2_LEN        0xFFFFC000U
+#define HW_ATL_A0_TXD_CTL2_CTX_EN     0x00002000U
+#define HW_ATL_A0_TXD_CTL2_CTX_IDX    0x00001000U
+
+#define HW_ATL_A0_TXD_CTL_DESC_TYPE_TXD   0x00000001U
+#define HW_ATL_A0_TXD_CTL_DESC_TYPE_TXC   0x00000002U
+#define HW_ATL_A0_TXD_CTL_BLEN        0x000FFFF0U
+#define HW_ATL_A0_TXD_CTL_DD          0x00100000U
+#define HW_ATL_A0_TXD_CTL_EOP         0x00200000U
+
+#define HW_ATL_A0_TXD_CTL_CMD_X       0x3FC00000U
+
+#define HW_ATL_A0_TXD_CTL_CMD_VLAN    BIT(22)
+#define HW_ATL_A0_TXD_CTL_CMD_FCS     BIT(23)
+#define HW_ATL_A0_TXD_CTL_CMD_IPCSO   BIT(24)
+#define HW_ATL_A0_TXD_CTL_CMD_TUCSO   BIT(25)
+#define HW_ATL_A0_TXD_CTL_CMD_LSO     BIT(26)
+#define HW_ATL_A0_TXD_CTL_CMD_WB      BIT(27)
+#define HW_ATL_A0_TXD_CTL_CMD_VXLAN   BIT(28)
+
+#define HW_ATL_A0_TXD_CTL_CMD_IPV6    BIT(21)
+#define HW_ATL_A0_TXD_CTL_CMD_TCP     BIT(22)
+
+#define HW_ATL_A0_MPI_CONTROL_ADR     0x0368U
+#define HW_ATL_A0_MPI_STATE_ADR       0x036CU
+
+#define HW_ATL_A0_MPI_SPEED_MSK       0xFFFFU
+#define HW_ATL_A0_MPI_SPEED_SHIFT     16U
+
+#define HW_ATL_A0_RATE_10G            BIT(0)
+#define HW_ATL_A0_RATE_5G             BIT(1)
+#define HW_ATL_A0_RATE_2G5            BIT(3)
+#define HW_ATL_A0_RATE_1G             BIT(4)
+#define HW_ATL_A0_RATE_100M           BIT(5)
+
+#define HW_ATL_A0_TXBUF_MAX 160U
+#define HW_ATL_A0_RXBUF_MAX 320U
+
+#define HW_ATL_A0_RSS_REDIRECTION_MAX 64U
+#define HW_ATL_A0_RSS_REDIRECTION_BITS 3U
+
+#define HW_ATL_A0_TC_MAX 1U
+#define HW_ATL_A0_RSS_MAX 8U
+
+#define HW_ATL_A0_FW_SEMA_RAM           0x2U
+
+#define HW_ATL_A0_RXD_DD    0x1U
+#define HW_ATL_A0_RXD_NCEA0 0x1U
+
+#define HW_ATL_A0_RXD_WB_STAT2_EOP     0x0002U
+
+#define HW_ATL_A0_UCP_0X370_REG  0x370U
+
+#define HW_ATL_A0_FW_VER_EXPECTED 0x01050006U
+
+/* Hardware tx descriptor */
+struct __packed hw_atl_txd_s {
+       u64 buf_addr;
+       u32 ctl;
+       u32 ctl2; /* 63..46 - payload length, 45 - ctx enable, 44 - ctx index */
+};
+
+/* Hardware tx context descriptor */
+struct __packed hw_atl_txc_s {
+       u32 rsvd;
+       u32 len;
+       u32 ctl;
+       u32 len2;
+};
+
+/* Hardware rx descriptor */
+struct __packed hw_atl_rxd_s {
+       u64 buf_addr;
+       u64 hdr_addr;
+};
+
+/* Hardware rx descriptor writeback */
+struct __packed hw_atl_rxd_wb_s {
+       u32 type;
+       u32 rss_hash;
+       u16 status;
+       u16 pkt_len;
+       u16 next_desc_ptr;
+       u16 vlan;
+};
+
+/* HW layer capabilities */
+static struct aq_hw_caps_s hw_atl_a0_hw_caps_ = {
+       .ports = 1U,
+       .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_SG |
+                       NETIF_F_TSO,
+       .hw_priv_flags = IFF_UNICAST_FLT,
+       .link_speed_msk = (HW_ATL_A0_RATE_10G |
+                       HW_ATL_A0_RATE_5G |
+                       HW_ATL_A0_RATE_2G5 |
+                       HW_ATL_A0_RATE_1G |
+                       HW_ATL_A0_RATE_100M),
+       .flow_control = true,
+       .mtu = HW_ATL_A0_MTU_JUMBO,
+       .mac_regs_count = 88,
+       .fw_ver_expected = HW_ATL_A0_FW_VER_EXPECTED,
+};
+
+#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
new file mode 100644 (file)
index 0000000..e7e694f
--- /dev/null
@@ -0,0 +1,958 @@
+/*
+ * 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 "hw_atl_b0.h"
+#include "hw_atl_utils.h"
+#include "hw_atl_llh.h"
+#include "hw_atl_b0_internal.h"
+
+static int hw_atl_b0_get_hw_caps(struct aq_hw_s *self,
+                                struct aq_hw_caps_s *aq_hw_caps)
+{
+       memcpy(aq_hw_caps, &hw_atl_b0_hw_caps_, sizeof(*aq_hw_caps));
+       return 0;
+}
+
+static struct aq_hw_s *hw_atl_b0_create(struct aq_pci_func_s *aq_pci_func,
+                                       unsigned int port,
+                                       struct aq_hw_ops *ops)
+{
+       struct hw_atl_s *self = NULL;
+
+       self = kzalloc(sizeof(*self), GFP_KERNEL);
+       if (!self)
+               goto err_exit;
+
+       self->base.aq_pci_func = aq_pci_func;
+
+       self->base.not_ff_addr = 0x10U;
+
+err_exit:
+       return (struct aq_hw_s *)self;
+}
+
+static void hw_atl_b0_destroy(struct aq_hw_s *self)
+{
+       kfree(self);
+}
+
+static int hw_atl_b0_hw_reset(struct aq_hw_s *self)
+{
+       int err = 0;
+
+       glb_glb_reg_res_dis_set(self, 1U);
+       pci_pci_reg_res_dis_set(self, 0U);
+       rx_rx_reg_res_dis_set(self, 0U);
+       tx_tx_reg_res_dis_set(self, 0U);
+
+       HW_ATL_FLUSH();
+       glb_soft_res_set(self, 1);
+
+       /* check 10 times by 1ms */
+       AQ_HW_WAIT_FOR(glb_soft_res_get(self) == 0, 1000U, 10U);
+       if (err < 0)
+               goto err_exit;
+
+       itr_irq_reg_res_dis_set(self, 0U);
+       itr_res_irq_set(self, 1U);
+
+       /* check 10 times by 1ms */
+       AQ_HW_WAIT_FOR(itr_res_irq_get(self) == 0, 1000U, 10U);
+       if (err < 0)
+               goto err_exit;
+
+       hw_atl_utils_mpi_set(self, MPI_RESET, 0x0U);
+
+       err = aq_hw_err_from_flags(self);
+
+err_exit:
+       return err;
+}
+
+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;
+       bool is_rx_flow_control = false;
+
+       /* TPS Descriptor rate init */
+       tps_tx_pkt_shed_desc_rate_curr_time_res_set(self, 0x0U);
+       tps_tx_pkt_shed_desc_rate_lim_set(self, 0xA);
+
+       /* TPS VM init */
+       tps_tx_pkt_shed_desc_vm_arb_mode_set(self, 0U);
+
+       /* TPS TC credits init */
+       tps_tx_pkt_shed_desc_tc_arb_mode_set(self, 0U);
+       tps_tx_pkt_shed_data_arb_mode_set(self, 0U);
+
+       tps_tx_pkt_shed_tc_data_max_credit_set(self, 0xFFF, 0U);
+       tps_tx_pkt_shed_tc_data_weight_set(self, 0x64, 0U);
+       tps_tx_pkt_shed_desc_tc_max_credit_set(self, 0x50, 0U);
+       tps_tx_pkt_shed_desc_tc_weight_set(self, 0x1E, 0U);
+
+       /* Tx buf size */
+       buff_size = HW_ATL_B0_TXBUF_MAX;
+
+       tpb_tx_pkt_buff_size_per_tc_set(self, buff_size, tc);
+       tpb_tx_buff_hi_threshold_per_tc_set(self,
+                                           (buff_size * (1024 / 32U) * 66U) /
+                                           100U, tc);
+       tpb_tx_buff_lo_threshold_per_tc_set(self,
+                                           (buff_size * (1024 / 32U) * 50U) /
+                                           100U, tc);
+
+       /* QoS Rx buf size per TC */
+       tc = 0;
+       is_rx_flow_control = (AQ_NIC_FC_RX & self->aq_nic_cfg->flow_control);
+       buff_size = HW_ATL_B0_RXBUF_MAX;
+
+       rpb_rx_pkt_buff_size_per_tc_set(self, buff_size, tc);
+       rpb_rx_buff_hi_threshold_per_tc_set(self,
+                                           (buff_size *
+                                           (1024U / 32U) * 66U) /
+                                           100U, tc);
+       rpb_rx_buff_lo_threshold_per_tc_set(self,
+                                           (buff_size *
+                                           (1024U / 32U) * 50U) /
+                                           100U, tc);
+       rpb_rx_xoff_en_per_tc_set(self, is_rx_flow_control ? 1U : 0U, tc);
+
+       /* QoS 802.1p priority -> TC mapping */
+       for (i_priority = 8U; i_priority--;)
+               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 = NULL;
+       int err = 0;
+       unsigned int i = 0U;
+       unsigned int addr = 0U;
+
+       cfg = self->aq_nic_cfg;
+
+       for (i = 10, addr = 0U; i--; ++addr) {
+               u32 key_data = cfg->is_rss ?
+                       __swab32(rss_params->hash_secret_key[i]) : 0U;
+               rpf_rss_key_wr_data_set(self, key_data);
+               rpf_rss_key_addr_set(self, addr);
+               rpf_rss_key_wr_en_set(self, 1U);
+               AQ_HW_WAIT_FOR(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 = AQ_DIMOF(bitary); i--;) {
+               rpf_rss_redir_tbl_wr_data_set(self, bitary[i]);
+               rpf_rss_redir_tbl_addr_set(self, i);
+               rpf_rss_redir_wr_en_set(self, 1U);
+               AQ_HW_WAIT_FOR(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)
+{
+       int err = 0;
+       unsigned int i;
+
+       /* TX checksums offloads*/
+       tpo_ipv4header_crc_offload_en_set(self, 1);
+       tpo_tcp_udp_crc_offload_en_set(self, 1);
+       if (err < 0)
+               goto err_exit;
+
+       /* RX checksums offloads*/
+       rpo_ipv4header_crc_offload_en_set(self, 1);
+       rpo_tcp_udp_crc_offload_en_set(self, 1);
+       if (err < 0)
+               goto err_exit;
+
+       /* LSO offloads*/
+       tdm_large_send_offload_en_set(self, 0xFFFFFFFFU);
+       if (err < 0)
+               goto err_exit;
+
+/* 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++)
+                       rpo_lro_max_num_of_descriptors_set(self, val, i);
+
+               rpo_lro_time_base_divider_set(self, 0x61AU);
+               rpo_lro_inactive_interval_set(self, 0);
+               rpo_lro_max_coalescing_interval_set(self, 2);
+
+               rpo_lro_qsessions_lim_set(self, 1U);
+
+               rpo_lro_total_desc_lim_set(self, 2U);
+
+               rpo_lro_patch_optimization_en_set(self, 0U);
+
+               rpo_lro_min_pay_of_first_pkt_set(self, 10U);
+
+               rpo_lro_pkt_lim_set(self, 1U);
+
+               rpo_lro_en_set(self, aq_nic_cfg->is_lro ? 0xFFFFFFFFU : 0U);
+       }
+       err = aq_hw_err_from_flags(self);
+
+err_exit:
+       return err;
+}
+
+static int hw_atl_b0_hw_init_tx_path(struct aq_hw_s *self)
+{
+       thm_lso_tcp_flag_of_first_pkt_set(self, 0x0FF6U);
+       thm_lso_tcp_flag_of_middle_pkt_set(self, 0x0FF6U);
+       thm_lso_tcp_flag_of_last_pkt_set(self, 0x0F7FU);
+
+       /* Tx interrupts */
+       tdm_tx_desc_wr_wb_irq_en_set(self, 1U);
+
+       /* misc */
+       aq_hw_write_reg(self, 0x00007040U, IS_CHIP_FEATURE(TPO2) ?
+                       0x00010000U : 0x00000000U);
+       tdm_tx_dca_en_set(self, 0U);
+       tdm_tx_dca_mode_set(self, 0U);
+
+       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 */
+       rpb_rpf_rx_traf_class_mode_set(self, 1U);
+
+       /* Rx flow control */
+       rpb_rx_flow_ctl_mode_set(self, 1U);
+
+       /* RSS Ring selection */
+       reg_rx_flr_rss_control1set(self, cfg->is_rss ?
+                                       0xB3333333U : 0x00000000U);
+
+       /* Multicast filters */
+       for (i = HW_ATL_B0_MAC_MAX; i--;) {
+               rpfl2_uc_flr_en_set(self, (i == 0U) ? 1U : 0U, i);
+               rpfl2unicast_flr_act_set(self, 1U, i);
+       }
+
+       reg_rx_flr_mcst_flr_msk_set(self, 0x00000000U);
+       reg_rx_flr_mcst_flr_set(self, 0x00010FFFU, 0U);
+
+       /* Vlan filters */
+       rpf_vlan_outer_etht_set(self, 0x88A8U);
+       rpf_vlan_inner_etht_set(self, 0x8100U);
+
+       if (cfg->vlan_id) {
+               rpf_vlan_flr_act_set(self, 1U, 0U);
+               rpf_vlan_id_flr_set(self, 0U, 0U);
+               rpf_vlan_flr_en_set(self, 0U, 0U);
+
+               rpf_vlan_accept_untagged_packets_set(self, 1U);
+               rpf_vlan_untagged_act_set(self, 1U);
+
+               rpf_vlan_flr_act_set(self, 1U, 1U);
+               rpf_vlan_id_flr_set(self, cfg->vlan_id, 0U);
+               rpf_vlan_flr_en_set(self, 1U, 1U);
+       } else {
+               rpf_vlan_prom_mode_en_set(self, 1);
+       }
+
+       /* Rx Interrupts */
+       rdm_rx_desc_wr_wb_irq_en_set(self, 1U);
+
+       /* misc */
+       aq_hw_write_reg(self, 0x00005040U,
+                       IS_CHIP_FEATURE(RPF2) ? 0x000F0000U : 0x00000000U);
+
+       rpfl2broadcast_flr_act_set(self, 1U);
+       rpfl2broadcast_count_threshold_set(self, 0xFFFFU & (~0U / 256U));
+
+       rdm_rx_dca_en_set(self, 0U);
+       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];
+
+       rpfl2_uc_flr_en_set(self, 0U, HW_ATL_B0_MAC);
+       rpfl2unicast_dest_addresslsw_set(self, l, HW_ATL_B0_MAC);
+       rpfl2unicast_dest_addressmsw_set(self, h, HW_ATL_B0_MAC);
+       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,
+                            struct aq_nic_cfg_s *aq_nic_cfg,
+                            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;
+
+       self->aq_nic_cfg = aq_nic_cfg;
+
+       hw_atl_utils_hw_chip_features_init(self,
+                                          &PHAL_ATLANTIC_B0->chip_features);
+
+       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);
+
+       hw_atl_utils_mpi_set(self, MPI_INIT, aq_nic_cfg->link_speed_msk);
+
+       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);
+
+       err = aq_hw_err_from_flags(self);
+       if (err < 0)
+               goto err_exit;
+
+       /* Interrupts */
+       reg_irq_glb_ctl_set(self,
+                           aq_hw_atl_igcr_table_[aq_nic_cfg->irq_type]
+                                                [(aq_nic_cfg->vecs > 1U) ?
+                                                1 : 0]);
+
+       itr_irq_auto_masklsw_set(self, aq_nic_cfg->aq_hw_caps->irq_mask);
+
+       /* Interrupts */
+       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)
+{
+       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)
+{
+       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)
+{
+       tpb_tx_buff_en_set(self, 1);
+       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)
+{
+       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;
+               } 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;
+                       }
+               }
+
+               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);
+
+       rdm_rx_desc_en_set(self, false, aq_ring->idx);
+
+       rdm_rx_desc_head_splitting_set(self, 0U, aq_ring->idx);
+
+       reg_rx_dma_desc_base_addresslswset(self, dma_desc_addr_lsw,
+                                          aq_ring->idx);
+
+       reg_rx_dma_desc_base_addressmswset(self,
+                                          dma_desc_addr_msw, aq_ring->idx);
+
+       rdm_rx_desc_len_set(self, aq_ring->size / 8U, aq_ring->idx);
+
+       rdm_rx_desc_data_buff_size_set(self,
+                                      AQ_CFG_RX_FRAME_MAX / 1024U,
+                                      aq_ring->idx);
+
+       rdm_rx_desc_head_buff_size_set(self, 0U, aq_ring->idx);
+       rdm_rx_desc_head_splitting_set(self, 0U, aq_ring->idx);
+       rpo_rx_desc_vlan_stripping_set(self, 0U, aq_ring->idx);
+
+       /* Rx ring set mode */
+
+       /* Mapping interrupt vector */
+       itr_irq_map_rx_set(self, aq_ring_param->vec_idx, aq_ring->idx);
+       itr_irq_map_en_rx_set(self, true, aq_ring->idx);
+
+       rdm_cpu_id_set(self, aq_ring_param->cpu, aq_ring->idx);
+       rdm_rx_desc_dca_en_set(self, 0U, aq_ring->idx);
+       rdm_rx_head_dca_en_set(self, 0U, aq_ring->idx);
+       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);
+
+       reg_tx_dma_desc_base_addresslswset(self, dma_desc_lsw_addr,
+                                          aq_ring->idx);
+
+       reg_tx_dma_desc_base_addressmswset(self, dma_desc_msw_addr,
+                                          aq_ring->idx);
+
+       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 */
+       tdm_tx_desc_wr_wb_threshold_set(self, 0U, aq_ring->idx);
+
+       /* Mapping interrupt vector */
+       itr_irq_map_tx_set(self, aq_ring_param->vec_idx, aq_ring->idx);
+       itr_irq_map_en_tx_set(self, true, aq_ring->idx);
+
+       tdm_cpu_id_set(self, aq_ring_param->cpu, aq_ring->idx);
+       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;
+       }
+
+       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_ = tdm_tx_desc_head_ptr_get(self, ring->idx);
+
+       if (aq_utils_obj_test(&self->header.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_err = 1U;
+               unsigned int is_rx_check_sum_enabled = 0U;
+               unsigned int pkt_type = 0U;
+
+               if (!(rxd_wb->status & 0x1U)) { /* RxD is not done */
+                       break;
+               }
+
+               buff = &ring->buff_ring[ring->hw_head];
+
+               is_err = (0x0000003CU & rxd_wb->status);
+
+               is_rx_check_sum_enabled = (rxd_wb->type) & (0x3U << 19);
+               is_err &= ~0x20U; /* exclude validity bit */
+
+               pkt_type = 0xFFU & (rxd_wb->type >> 4);
+
+               if (is_rx_check_sum_enabled) {
+                       if (0x0U == (pkt_type & 0x3U))
+                               buff->is_ip_cso = (is_err & 0x08U) ? 0U : 1U;
+
+                       if (0x4U == (pkt_type & 0x1CU))
+                               buff->is_udp_cso = buff->is_cso_err ? 0U : 1U;
+                       else if (0x0U == (pkt_type & 0x1CU))
+                               buff->is_tcp_cso = buff->is_cso_err ? 0U : 1U;
+               }
+
+               is_err &= ~0x18U;
+
+               dma_unmap_page(ndev, buff->pa, buff->len, DMA_FROM_DEVICE);
+
+               if (is_err || rxd_wb->type & 0x1000U) {
+                       /* status 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 - 1U));
+                               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)
+{
+       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)
+{
+       itr_irq_msk_clearlsw_set(self, LODWORD(mask));
+       itr_irq_status_clearlsw_set(self, LODWORD(mask));
+
+       atomic_inc(&PHAL_ATLANTIC_B0->dpc);
+       return aq_hw_err_from_flags(self);
+}
+
+static int hw_atl_b0_hw_irq_read(struct aq_hw_s *self, u64 *mask)
+{
+       *mask = 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;
+
+       rpfl2promiscuous_mode_en_set(self, IS_FILTER_ENABLED(IFF_PROMISC));
+       rpfl2multicast_flr_en_set(self,
+                                 IS_FILTER_ENABLED(IFF_MULTICAST), 0);
+
+       rpfl2_accept_all_mc_packets_set(self,
+                                       IS_FILTER_ENABLED(IFF_ALLMULTI));
+
+       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)
+               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_CFG_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];
+
+               rpfl2_uc_flr_en_set(self, 0U, HW_ATL_B0_MAC_MIN + i);
+
+               rpfl2unicast_dest_addresslsw_set(self,
+                                                l, HW_ATL_B0_MAC_MIN + i);
+
+               rpfl2unicast_dest_addressmsw_set(self,
+                                                h, HW_ATL_B0_MAC_MIN + i);
+
+               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,
+                                                bool itr_enabled)
+{
+       unsigned int i = 0U;
+
+       if (itr_enabled && self->aq_nic_cfg->itr) {
+               tdm_tx_desc_wr_wb_irq_en_set(self, 0U);
+               tdm_tdm_intr_moder_en_set(self, 1U);
+               rdm_rx_desc_wr_wb_irq_en_set(self, 0U);
+               rdm_rdm_intr_moder_en_set(self, 1U);
+
+               PHAL_ATLANTIC_B0->itr_tx = 2U;
+               PHAL_ATLANTIC_B0->itr_rx = 2U;
+
+               if (self->aq_nic_cfg->itr != 0xFFFFU) {
+                       unsigned int max_timer = self->aq_nic_cfg->itr / 2U;
+                       unsigned int min_timer = self->aq_nic_cfg->itr / 32U;
+
+                       max_timer = min(0x1FFU, max_timer);
+                       min_timer = min(0xFFU, min_timer);
+
+                       PHAL_ATLANTIC_B0->itr_tx |= min_timer << 0x8U;
+                       PHAL_ATLANTIC_B0->itr_tx |= max_timer << 0x10U;
+                       PHAL_ATLANTIC_B0->itr_rx |= min_timer << 0x8U;
+                       PHAL_ATLANTIC_B0->itr_rx |= max_timer << 0x10U;
+               } else {
+                       static unsigned int hw_atl_b0_timers_table_tx_[][2] = {
+                               {0xffU, 0xffU}, /* 10Gbit */
+                               {0xffU, 0x1ffU}, /* 5Gbit */
+                               {0xffU, 0x1ffU}, /* 5Gbit 5GS */
+                               {0xffU, 0x1ffU}, /* 2.5Gbit */
+                               {0xffU, 0x1ffU}, /* 1Gbit */
+                               {0xffU, 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);
+
+                       PHAL_ATLANTIC_B0->itr_tx |=
+                               hw_atl_b0_timers_table_tx_[speed_index]
+                               [0] << 0x8U; /* set min timer value */
+                       PHAL_ATLANTIC_B0->itr_tx |=
+                               hw_atl_b0_timers_table_tx_[speed_index]
+                               [1] << 0x10U; /* set max timer value */
+
+                       PHAL_ATLANTIC_B0->itr_rx |=
+                               hw_atl_b0_timers_table_rx_[speed_index]
+                               [0] << 0x8U; /* set min timer value */
+                       PHAL_ATLANTIC_B0->itr_rx |=
+                               hw_atl_b0_timers_table_rx_[speed_index]
+                               [1] << 0x10U; /* set max timer value */
+               }
+       } else {
+               tdm_tx_desc_wr_wb_irq_en_set(self, 1U);
+               tdm_tdm_intr_moder_en_set(self, 0U);
+               rdm_rx_desc_wr_wb_irq_en_set(self, 1U);
+               rdm_rdm_intr_moder_en_set(self, 0U);
+               PHAL_ATLANTIC_B0->itr_tx = 0U;
+               PHAL_ATLANTIC_B0->itr_rx = 0U;
+       }
+
+       for (i = HW_ATL_B0_RINGS_MAX; i--;) {
+               reg_tx_intr_moder_ctrl_set(self,
+                                          PHAL_ATLANTIC_B0->itr_tx, i);
+               reg_rx_intr_moder_ctrl_set(self,
+                                          PHAL_ATLANTIC_B0->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);
+       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)
+{
+       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)
+{
+       rdm_rx_desc_en_set(self, 0U, ring->idx);
+       return aq_hw_err_from_flags(self);
+}
+
+static int hw_atl_b0_hw_set_speed(struct aq_hw_s *self, u32 speed)
+{
+       int err = 0;
+
+       err = hw_atl_utils_mpi_set_speed(self, speed, MPI_INIT);
+       if (err < 0)
+               goto err_exit;
+
+err_exit:
+       return err;
+}
+
+static struct aq_hw_ops hw_atl_ops_ = {
+       .create               = hw_atl_b0_create,
+       .destroy              = hw_atl_b0_destroy,
+       .get_hw_caps          = hw_atl_b0_get_hw_caps,
+
+       .hw_get_mac_permanent = hw_atl_utils_get_mac_permanent,
+       .hw_set_mac_address   = hw_atl_b0_hw_mac_addr_set,
+       .hw_get_link_status   = hw_atl_utils_mpi_get_link_status,
+       .hw_set_link_speed    = hw_atl_b0_hw_set_speed,
+       .hw_init              = hw_atl_b0_hw_init,
+       .hw_deinit            = hw_atl_utils_hw_deinit,
+       .hw_set_power         = hw_atl_utils_hw_set_power,
+       .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,
+};
+
+struct aq_hw_ops *hw_atl_b0_get_ops_by_id(struct pci_dev *pdev)
+{
+       bool is_vid_ok = (pdev->vendor == PCI_VENDOR_ID_AQUANTIA);
+       bool is_did_ok = ((pdev->device == HW_ATL_DEVICE_ID_0001) ||
+                       (pdev->device == HW_ATL_DEVICE_ID_D100) ||
+                       (pdev->device == HW_ATL_DEVICE_ID_D107) ||
+                       (pdev->device == HW_ATL_DEVICE_ID_D108) ||
+                       (pdev->device == HW_ATL_DEVICE_ID_D109));
+
+       bool is_rev_ok = (pdev->revision == 2U);
+
+       return (is_vid_ok && is_did_ok && is_rev_ok) ? &hw_atl_ops_ : NULL;
+}
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
new file mode 100644 (file)
index 0000000..a1e1bce
--- /dev/null
@@ -0,0 +1,34 @@
+/*
+ * 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.h: Declaration of abstract interface for Atlantic hardware
+ * specific functions.
+ */
+
+#ifndef HW_ATL_B0_H
+#define HW_ATL_B0_H
+
+#include "../aq_common.h"
+
+#ifndef PCI_VENDOR_ID_AQUANTIA
+
+#define PCI_VENDOR_ID_AQUANTIA  0x1D6A
+#define HW_ATL_DEVICE_ID_0001   0x0001
+#define HW_ATL_DEVICE_ID_D100   0xD100
+#define HW_ATL_DEVICE_ID_D107   0xD107
+#define HW_ATL_DEVICE_ID_D108   0xD108
+#define HW_ATL_DEVICE_ID_D109   0xD109
+
+#define HW_ATL_NIC_NAME "aQuantia AQtion 5Gbit Network Adapter"
+
+#endif
+
+struct aq_hw_ops *hw_atl_b0_get_ops_by_id(struct pci_dev *pdev);
+
+#endif /* HW_ATL_B0_H */
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
new file mode 100644 (file)
index 0000000..8bdee3d
--- /dev/null
@@ -0,0 +1,207 @@
+/*
+ * 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_internal.h: Definition of Atlantic B0 chip specific
+ * constants.
+ */
+
+#ifndef HW_ATL_B0_INTERNAL_H
+#define HW_ATL_B0_INTERNAL_H
+
+#include "../aq_common.h"
+
+#define HW_ATL_B0_MTU_JUMBO (16000U)
+#define HW_ATL_B0_MTU        1514U
+
+#define HW_ATL_B0_TX_RINGS 4U
+#define HW_ATL_B0_RX_RINGS 4U
+
+#define HW_ATL_B0_RINGS_MAX 32U
+#define HW_ATL_B0_TXD_SIZE       (16U)
+#define HW_ATL_B0_RXD_SIZE       (16U)
+
+#define HW_ATL_B0_MAC      0U
+#define HW_ATL_B0_MAC_MIN  1U
+#define HW_ATL_B0_MAC_MAX  33U
+
+/* UCAST/MCAST filters */
+#define HW_ATL_B0_UCAST_FILTERS_MAX 38
+#define HW_ATL_B0_MCAST_FILTERS_MAX 8
+
+/* interrupts */
+#define HW_ATL_B0_ERR_INT 8U
+#define HW_ATL_B0_INT_MASK  (0xFFFFFFFFU)
+
+#define HW_ATL_B0_TXD_CTL2_LEN        (0xFFFFC000)
+#define HW_ATL_B0_TXD_CTL2_CTX_EN     (0x00002000)
+#define HW_ATL_B0_TXD_CTL2_CTX_IDX    (0x00001000)
+
+#define HW_ATL_B0_TXD_CTL_DESC_TYPE_TXD   (0x00000001)
+#define HW_ATL_B0_TXD_CTL_DESC_TYPE_TXC   (0x00000002)
+#define HW_ATL_B0_TXD_CTL_BLEN        (0x000FFFF0)
+#define HW_ATL_B0_TXD_CTL_DD          (0x00100000)
+#define HW_ATL_B0_TXD_CTL_EOP         (0x00200000)
+
+#define HW_ATL_B0_TXD_CTL_CMD_X       (0x3FC00000)
+
+#define HW_ATL_B0_TXD_CTL_CMD_VLAN    BIT(22)
+#define HW_ATL_B0_TXD_CTL_CMD_FCS     BIT(23)
+#define HW_ATL_B0_TXD_CTL_CMD_IPCSO   BIT(24)
+#define HW_ATL_B0_TXD_CTL_CMD_TUCSO   BIT(25)
+#define HW_ATL_B0_TXD_CTL_CMD_LSO     BIT(26)
+#define HW_ATL_B0_TXD_CTL_CMD_WB      BIT(27)
+#define HW_ATL_B0_TXD_CTL_CMD_VXLAN   BIT(28)
+
+#define HW_ATL_B0_TXD_CTL_CMD_IPV6    BIT(21)
+#define HW_ATL_B0_TXD_CTL_CMD_TCP     BIT(22)
+
+#define HW_ATL_B0_MPI_CONTROL_ADR       0x0368U
+#define HW_ATL_B0_MPI_STATE_ADR         0x036CU
+
+#define HW_ATL_B0_MPI_SPEED_MSK         0xFFFFU
+#define HW_ATL_B0_MPI_SPEED_SHIFT       16U
+
+#define HW_ATL_B0_RATE_10G              BIT(0)
+#define HW_ATL_B0_RATE_5G               BIT(1)
+#define HW_ATL_B0_RATE_2G5              BIT(3)
+#define HW_ATL_B0_RATE_1G               BIT(4)
+#define HW_ATL_B0_RATE_100M             BIT(5)
+
+#define HW_ATL_B0_TXBUF_MAX  160U
+#define HW_ATL_B0_RXBUF_MAX  320U
+
+#define HW_ATL_B0_RSS_REDIRECTION_MAX 64U
+#define HW_ATL_B0_RSS_REDIRECTION_BITS 3U
+#define HW_ATL_B0_RSS_HASHKEY_BITS 320U
+
+#define HW_ATL_B0_TCRSS_4_8  1
+#define HW_ATL_B0_TC_MAX 1U
+#define HW_ATL_B0_RSS_MAX 8U
+
+#define HW_ATL_B0_LRO_RXD_MAX 2U
+#define HW_ATL_B0_RS_SLIP_ENABLED  0U
+
+/* (256k -1(max pay_len) - 54(header)) */
+#define HAL_ATL_B0_LSO_MAX_SEGMENT_SIZE 262089U
+
+/* (256k -1(max pay_len) - 74(header)) */
+#define HAL_ATL_B0_LSO_IPV6_MAX_SEGMENT_SIZE 262069U
+
+#define HW_ATL_B0_CHIP_REVISION_B0      0xA0U
+#define HW_ATL_B0_CHIP_REVISION_UNKNOWN 0xFFU
+
+#define HW_ATL_B0_FW_SEMA_RAM           0x2U
+
+#define HW_ATL_B0_TXC_LEN_TUNLEN    (0x0000FF00)
+#define HW_ATL_B0_TXC_LEN_OUTLEN    (0xFFFF0000)
+
+#define HW_ATL_B0_TXC_CTL_DESC_TYPE (0x00000007)
+#define HW_ATL_B0_TXC_CTL_CTX_ID    (0x00000008)
+#define HW_ATL_B0_TXC_CTL_VLAN      (0x000FFFF0)
+#define HW_ATL_B0_TXC_CTL_CMD       (0x00F00000)
+#define HW_ATL_B0_TXC_CTL_L2LEN     (0x7F000000)
+
+#define HW_ATL_B0_TXC_CTL_L3LEN     (0x80000000)       /* L3LEN lsb */
+#define HW_ATL_B0_TXC_LEN2_L3LEN    (0x000000FF)       /* L3LE upper bits */
+#define HW_ATL_B0_TXC_LEN2_L4LEN    (0x0000FF00)
+#define HW_ATL_B0_TXC_LEN2_MSSLEN   (0xFFFF0000)
+
+#define HW_ATL_B0_RXD_DD    (0x1)
+#define HW_ATL_B0_RXD_NCEA0 (0x1)
+
+#define HW_ATL_B0_RXD_WB_STAT_RSSTYPE (0x0000000F)
+#define HW_ATL_B0_RXD_WB_STAT_PKTTYPE (0x00000FF0)
+#define HW_ATL_B0_RXD_WB_STAT_RXCTRL  (0x00180000)
+#define HW_ATL_B0_RXD_WB_STAT_SPLHDR  (0x00200000)
+#define HW_ATL_B0_RXD_WB_STAT_HDRLEN  (0xFFC00000)
+
+#define HW_ATL_B0_RXD_WB_STAT2_DD      (0x0001)
+#define HW_ATL_B0_RXD_WB_STAT2_EOP     (0x0002)
+#define HW_ATL_B0_RXD_WB_STAT2_RXSTAT  (0x003C)
+#define HW_ATL_B0_RXD_WB_STAT2_MACERR  (0x0004)
+#define HW_ATL_B0_RXD_WB_STAT2_IP4ERR  (0x0008)
+#define HW_ATL_B0_RXD_WB_STAT2_TCPUPDERR  (0x0010)
+#define HW_ATL_B0_RXD_WB_STAT2_RXESTAT (0x0FC0)
+#define HW_ATL_B0_RXD_WB_STAT2_RSCCNT  (0xF000)
+
+#define L2_FILTER_ACTION_DISCARD (0x0)
+#define L2_FILTER_ACTION_HOST    (0x1)
+
+#define HW_ATL_B0_UCP_0X370_REG  (0x370)
+
+#define HW_ATL_B0_FLUSH() AQ_HW_READ_REG(self, 0x10)
+
+#define HW_ATL_B0_FW_VER_EXPECTED 0x01050006U
+
+/* Hardware tx descriptor */
+struct __packed hw_atl_txd_s {
+       u64 buf_addr;
+       u32 ctl;
+       u32 ctl2; /* 63..46 - payload length, 45 - ctx enable, 44 - ctx index */
+};
+
+/* Hardware tx context descriptor */
+struct __packed hw_atl_txc_s {
+       u32 rsvd;
+       u32 len;
+       u32 ctl;
+       u32 len2;
+};
+
+/* Hardware rx descriptor */
+struct __packed hw_atl_rxd_s {
+       u64 buf_addr;
+       u64 hdr_addr;
+};
+
+/* Hardware rx descriptor writeback */
+struct __packed hw_atl_rxd_wb_s {
+       u32 type;
+       u32 rss_hash;
+       u16 status;
+       u16 pkt_len;
+       u16 next_desc_ptr;
+       u16 vlan;
+};
+
+/* HW layer capabilities */
+static struct aq_hw_caps_s hw_atl_b0_hw_caps_ = {
+       .ports = 1U,
+       .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 = 8U * 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_RXHASH |
+                       NETIF_F_SG |
+                       NETIF_F_TSO |
+                       NETIF_F_LRO,
+       .hw_priv_flags = IFF_UNICAST_FLT,
+       .link_speed_msk = (HW_ATL_B0_RATE_10G |
+                       HW_ATL_B0_RATE_5G |
+                       HW_ATL_B0_RATE_2G5 |
+                       HW_ATL_B0_RATE_1G |
+                       HW_ATL_B0_RATE_100M),
+       .flow_control = true,
+       .mtu = HW_ATL_B0_MTU_JUMBO,
+       .mac_regs_count = 88,
+       .fw_ver_expected = HW_ATL_B0_FW_VER_EXPECTED,
+};
+
+#endif /* HW_ATL_B0_INTERNAL_H */