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Message-Id: <726fb213b0f282fc4a6b997721c3022551783fe6.1482844668.git.vomlehn@texas.net>
Date: Tue, 27 Dec 2016 05:17:42 -0800
From: David VomLehn <vomlehn@...as.net>
To: netdev@...r.kernel.org
Cc: Simon Edelhaus <Simon.Edelhaus@...antia.com>,
David VomLehn <vomlehn@...as.net>,
Dmitrii Tarakanov <Dmitrii.Tarakanov@...antia.com>,
Alexander Loktionov <Alexander.Loktionov@...antia.com>
Subject: [PATCH 06/12] Atlantic A0 specific functions.
Add Atlantic A0-specific functions.
Signed-off-by: Dmitrii Tarakanov <Dmitrii.Tarakanov@...antia.com>
Signed-off-by: Alexander Loktionov <Alexander.Loktionov@...antia.com>
Signed-off-by: David M. VomLehn <vomlehn@...as.net>
---
.../ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c | 934 +++++++++++++++++++++
.../ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.h | 35 +
.../aquantia/atlantic/hw_atl/hw_atl_a0_internal.h | 119 +++
3 files changed, 1088 insertions(+)
create mode 100644 drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c
create mode 100644 drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.h
create mode 100644 drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0_internal.h
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
index 0000000..604239a
--- /dev/null
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c
@@ -0,0 +1,934 @@
+/*
+ * Aquantia Corporation Network Driver
+ * Copyright (C) 2014-2016 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"
+
+#include <linux/pci.h>
+
+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,
+};
+
+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;
+ int err = 0;
+
+ self = kzalloc(sizeof(*self), GFP_KERNEL);
+ if (!self) {
+ err = -ENOMEM;
+ 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_receive_scale_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 ?
+ cpu_to_be32(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_receive_scale_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)];
+
+#define BITARY(i, v) \
+ { (*(u32 *)(bitary + ((i) / 16U))) |= (v << ((i) & 0xFU)); }
+#define RSSQ(i) (indirection_table[i] % num_rss_queues)
+
+ memset(bitary, 0, sizeof(bitary));
+
+ for (i = HW_ATL_A0_RSS_REDIRECTION_MAX; i--; )
+ BITARY((i * 3U), RSSQ(i));
+
+ 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;
+ }
+
+#undef RSSQ
+#undef BITARY
+
+ 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--;) {
+ rpfl2unicast_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);
+}
+
+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 = -1;
+ 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];
+
+ rpfl2unicast_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);
+ rpfl2unicast_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((struct aq_hw_s *)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;
+ 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)
+{
+ 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, (u32)aq_ring->dx_ring_pa,
+ aq_ring->idx);
+
+ reg_rx_dma_desc_base_addressmswset(self,
+ (u32)(((u64)aq_ring->dx_ring_pa) >> 32), 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)
+{
+ reg_tx_dma_desc_base_addresslswset(self, (u32)aq_ring->dx_ring_pa,
+ aq_ring->idx);
+
+ reg_tx_dma_desc_base_addressmswset(self,
+ (u32)(((u64)aq_ring->dx_ring_pa) >> 32),
+ 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_OBJ_TST(self, 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.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 1
+ if ((1U << 16) & reg_gen_irq_status_get(self))
+
+ atomic_inc(&PHAL_ATLANTIC_A0->dpc);
+#endif
+
+ 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)
+ rpfl2unicast_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];
+
+ rpfl2unicast_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);
+
+ rpfl2unicast_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.bps / 1000000U)) {
+ 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_bps_2_speed_index(
+ self->aq_link_status.bps);
+
+ 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_state,
+ .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) || (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_a0.h b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.h
new file mode 100644
index 0000000..200084a
--- /dev/null
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.h
@@ -0,0 +1,35 @@
+/*
+ * Aquantia Corporation Network Driver
+ * Copyright (C) 2014-2016 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
index 0000000..fd0726f
--- /dev/null
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0_internal.h
@@ -0,0 +1,119 @@
+/*
+ * Aquantia Corporation Network Driver
+ * Copyright (C) 2014-2016 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 hardware specific
+ * constants.
+ */
+
+#ifndef HW_ATL_A0_INTERNAL_H
+#define HW_ATL_A0_INTERNAL_H
+
+#include "../aq_common.h"
+
+#include <linux/etherdevice.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
+
+struct __packed hw_atl_txd_s {
+ u64 buf_addr;
+ u32 ctl;
+ u32 ctl2; /* 63..46 - payload length, 45 - ctx enable, 44 - ctx index */
+};
+
+struct __packed hw_atl_txc_s {
+ u32 rsvd;
+ u32 len;
+ u32 ctl;
+ u32 len2;
+};
+
+struct __packed hw_atl_rxd_s {
+ u64 buf_addr;
+ u64 hdr_addr;
+};
+
+struct __packed hw_atl_rxd_wb_s {
+ u32 type;
+ u32 rss_hash;
+ u16 status;
+ u16 pkt_len;
+ u16 next_desc_ptr;
+ u16 vlan;
+};
+
+#endif /* HW_ATL_A0_INTERNAL_H */
--
2.7.4
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