From mboxrd@z Thu Jan 1 00:00:00 1970 From: David VomLehn Subject: [PATCH 06/12] Atlantic A0 specific functions. Date: Tue, 27 Dec 2016 05:17:42 -0800 Message-ID: <726fb213b0f282fc4a6b997721c3022551783fe6.1482844668.git.vomlehn@texas.net> References: <9cc1565a3a398b4f70248ca98d12991071142682.1482844668.git.vomlehn@texas.net> Cc: Simon Edelhaus , David VomLehn , Dmitrii Tarakanov , Alexander Loktionov To: netdev@vger.kernel.org Return-path: Received: from barracuda5.aus1.datafoundry.com ([209.99.124.136]:39218 "EHLO barracuda.datafoundry.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754500AbcL0Nun (ORCPT ); Tue, 27 Dec 2016 08:50:43 -0500 In-Reply-To: <9cc1565a3a398b4f70248ca98d12991071142682.1482844668.git.vomlehn@texas.net> In-Reply-To: <122d7e0633e8a8ddfbb0c233d6896254b2fa3eef.1482844668.git.vomlehn@texas.net> References: <9cc1565a3a398b4f70248ca98d12991071142682.1482844668.git.vomlehn@texas.net> <67f8be9c3f6a4fede2eefaa4a3c45f9dbaf9b411.1482844668.git.vomlehn@texas.net> <8aac6eaf6d90651f279392f301de85e6ab72a3cb.1482844668.git.vomlehn@texas.net> <206766987286d2c30b7f674dec4aafe1ed70a21b.1482844668.git.vomlehn@texas.net> <122d7e0633e8a8ddfbb0c233d6896254b2fa3eef.1482844668.git.vomlehn@texas.net> Sender: netdev-owner@vger.kernel.org List-ID: Add Atlantic A0-specific functions. Signed-off-by: Dmitrii Tarakanov Signed-off-by: Alexander Loktionov Signed-off-by: David M. VomLehn --- .../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 + +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 + +#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