Lines Matching +full:dma +full:- +full:queues
1 // SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-3-Clause)
3 * Copyright (c) 2014-2025, Advanced Micro Devices, Inc.
17 #include "xgbe-common.h"
23 static int debug = -1;
32 DBGPR("-->xgbe_default_config\n"); in xgbe_default_config()
34 pdata->blen = DMA_SBMR_BLEN_64; in xgbe_default_config()
35 pdata->pbl = DMA_PBL_128; in xgbe_default_config()
36 pdata->aal = 1; in xgbe_default_config()
37 pdata->rd_osr_limit = 8; in xgbe_default_config()
38 pdata->wr_osr_limit = 8; in xgbe_default_config()
39 pdata->tx_sf_mode = MTL_TSF_ENABLE; in xgbe_default_config()
40 pdata->tx_threshold = MTL_TX_THRESHOLD_64; in xgbe_default_config()
41 pdata->tx_osp_mode = DMA_OSP_ENABLE; in xgbe_default_config()
42 pdata->rx_sf_mode = MTL_RSF_DISABLE; in xgbe_default_config()
43 pdata->rx_threshold = MTL_RX_THRESHOLD_64; in xgbe_default_config()
44 pdata->pause_autoneg = 1; in xgbe_default_config()
45 pdata->tx_pause = 1; in xgbe_default_config()
46 pdata->rx_pause = 1; in xgbe_default_config()
47 pdata->phy_speed = SPEED_UNKNOWN; in xgbe_default_config()
48 pdata->power_down = 0; in xgbe_default_config()
50 DBGPR("<--xgbe_default_config\n"); in xgbe_default_config()
55 xgbe_init_function_ptrs_dev(&pdata->hw_if); in xgbe_init_all_fptrs()
56 xgbe_init_function_ptrs_phy(&pdata->phy_if); in xgbe_init_all_fptrs()
57 xgbe_init_function_ptrs_i2c(&pdata->i2c_if); in xgbe_init_all_fptrs()
58 xgbe_init_function_ptrs_desc(&pdata->desc_if); in xgbe_init_all_fptrs()
60 pdata->vdata->init_function_ptrs_phy_impl(&pdata->phy_if); in xgbe_init_all_fptrs()
72 return ERR_PTR(-ENOMEM); in xgbe_alloc_pdata()
76 pdata->netdev = netdev; in xgbe_alloc_pdata()
77 pdata->dev = dev; in xgbe_alloc_pdata()
79 spin_lock_init(&pdata->lock); in xgbe_alloc_pdata()
80 spin_lock_init(&pdata->xpcs_lock); in xgbe_alloc_pdata()
81 mutex_init(&pdata->rss_mutex); in xgbe_alloc_pdata()
82 spin_lock_init(&pdata->tstamp_lock); in xgbe_alloc_pdata()
83 mutex_init(&pdata->i2c_mutex); in xgbe_alloc_pdata()
84 init_completion(&pdata->i2c_complete); in xgbe_alloc_pdata()
85 init_completion(&pdata->mdio_complete); in xgbe_alloc_pdata()
87 pdata->msg_enable = netif_msg_init(debug, default_msg_level); in xgbe_alloc_pdata()
89 set_bit(XGBE_DOWN, &pdata->dev_state); in xgbe_alloc_pdata()
90 set_bit(XGBE_STOPPED, &pdata->dev_state); in xgbe_alloc_pdata()
97 struct net_device *netdev = pdata->netdev; in xgbe_free_pdata()
111 if (!pdata->tx_max_channel_count) in xgbe_set_counts()
112 pdata->tx_max_channel_count = pdata->hw_feat.tx_ch_cnt; in xgbe_set_counts()
113 if (!pdata->rx_max_channel_count) in xgbe_set_counts()
114 pdata->rx_max_channel_count = pdata->hw_feat.rx_ch_cnt; in xgbe_set_counts()
116 if (!pdata->tx_max_q_count) in xgbe_set_counts()
117 pdata->tx_max_q_count = pdata->hw_feat.tx_q_cnt; in xgbe_set_counts()
118 if (!pdata->rx_max_q_count) in xgbe_set_counts()
119 pdata->rx_max_q_count = pdata->hw_feat.rx_q_cnt; in xgbe_set_counts()
122 * -Tx (DMA) Channels map 1-to-1 to Tx Queues so set in xgbe_set_counts()
123 * the number of Tx queues to the number of Tx channels in xgbe_set_counts()
125 * -Rx (DMA) Channels do not map 1-to-1 so use the actual in xgbe_set_counts()
126 * number of Rx queues or maximum allowed in xgbe_set_counts()
128 pdata->tx_ring_count = min_t(unsigned int, num_online_cpus(), in xgbe_set_counts()
129 pdata->hw_feat.tx_ch_cnt); in xgbe_set_counts()
130 pdata->tx_ring_count = min_t(unsigned int, pdata->tx_ring_count, in xgbe_set_counts()
131 pdata->tx_max_channel_count); in xgbe_set_counts()
132 pdata->tx_ring_count = min_t(unsigned int, pdata->tx_ring_count, in xgbe_set_counts()
133 pdata->tx_max_q_count); in xgbe_set_counts()
135 pdata->tx_q_count = pdata->tx_ring_count; in xgbe_set_counts()
137 pdata->rx_ring_count = min_t(unsigned int, num_online_cpus(), in xgbe_set_counts()
138 pdata->hw_feat.rx_ch_cnt); in xgbe_set_counts()
139 pdata->rx_ring_count = min_t(unsigned int, pdata->rx_ring_count, in xgbe_set_counts()
140 pdata->rx_max_channel_count); in xgbe_set_counts()
142 pdata->rx_q_count = min_t(unsigned int, pdata->hw_feat.rx_q_cnt, in xgbe_set_counts()
143 pdata->rx_max_q_count); in xgbe_set_counts()
146 dev_dbg(pdata->dev, "TX/RX DMA channel count = %u/%u\n", in xgbe_set_counts()
147 pdata->tx_ring_count, pdata->rx_ring_count); in xgbe_set_counts()
148 dev_dbg(pdata->dev, "TX/RX hardware queue count = %u/%u\n", in xgbe_set_counts()
149 pdata->tx_q_count, pdata->rx_q_count); in xgbe_set_counts()
155 struct net_device *netdev = pdata->netdev; in xgbe_config_netdev()
156 struct device *dev = pdata->dev; in xgbe_config_netdev()
159 netdev->irq = pdata->dev_irq; in xgbe_config_netdev()
160 netdev->base_addr = (unsigned long)pdata->xgmac_regs; in xgbe_config_netdev()
161 eth_hw_addr_set(netdev, pdata->mac_addr); in xgbe_config_netdev()
164 pdata->tx_sec_period = jiffies; in xgbe_config_netdev()
165 pdata->tx_ded_period = jiffies; in xgbe_config_netdev()
166 pdata->rx_sec_period = jiffies; in xgbe_config_netdev()
167 pdata->rx_ded_period = jiffies; in xgbe_config_netdev()
168 pdata->desc_sec_period = jiffies; in xgbe_config_netdev()
169 pdata->desc_ded_period = jiffies; in xgbe_config_netdev()
172 ret = pdata->hw_if.exit(pdata); in xgbe_config_netdev()
181 /* Set the DMA mask */ in xgbe_config_netdev()
183 DMA_BIT_MASK(pdata->hw_feat.dma_width)); in xgbe_config_netdev()
190 if (!pdata->tx_max_fifo_size) in xgbe_config_netdev()
191 pdata->tx_max_fifo_size = pdata->hw_feat.tx_fifo_size; in xgbe_config_netdev()
192 if (!pdata->rx_max_fifo_size) in xgbe_config_netdev()
193 pdata->rx_max_fifo_size = pdata->hw_feat.rx_fifo_size; in xgbe_config_netdev()
197 pdata->tx_desc_count = XGBE_TX_DESC_CNT; in xgbe_config_netdev()
200 pdata->rx_desc_count = XGBE_RX_DESC_CNT; in xgbe_config_netdev()
202 /* Adjust the number of queues based on interrupts assigned */ in xgbe_config_netdev()
203 if (pdata->channel_irq_count) { in xgbe_config_netdev()
204 pdata->tx_ring_count = min_t(unsigned int, pdata->tx_ring_count, in xgbe_config_netdev()
205 pdata->channel_irq_count); in xgbe_config_netdev()
206 pdata->rx_ring_count = min_t(unsigned int, pdata->rx_ring_count, in xgbe_config_netdev()
207 pdata->channel_irq_count); in xgbe_config_netdev()
210 dev_dbg(pdata->dev, in xgbe_config_netdev()
211 "adjusted TX/RX DMA channel count = %u/%u\n", in xgbe_config_netdev()
212 pdata->tx_ring_count, pdata->rx_ring_count); in xgbe_config_netdev()
216 netdev_rss_key_fill(pdata->rss_key, sizeof(pdata->rss_key)); in xgbe_config_netdev()
218 XGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, IP2TE, 1); in xgbe_config_netdev()
219 XGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, TCP4TE, 1); in xgbe_config_netdev()
220 XGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, UDP4TE, 1); in xgbe_config_netdev()
223 pdata->debugfs_an_cdr_workaround = pdata->vdata->an_cdr_workaround; in xgbe_config_netdev()
224 ret = pdata->phy_if.phy_init(pdata); in xgbe_config_netdev()
229 netdev->netdev_ops = xgbe_get_netdev_ops(); in xgbe_config_netdev()
230 netdev->ethtool_ops = xgbe_get_ethtool_ops(); in xgbe_config_netdev()
232 netdev->dcbnl_ops = xgbe_get_dcbnl_ops(); in xgbe_config_netdev()
236 netdev->hw_features = NETIF_F_SG | in xgbe_config_netdev()
247 if (pdata->hw_feat.rss) in xgbe_config_netdev()
248 netdev->hw_features |= NETIF_F_RXHASH; in xgbe_config_netdev()
250 if (pdata->hw_feat.vxn) { in xgbe_config_netdev()
251 netdev->hw_enc_features = NETIF_F_SG | in xgbe_config_netdev()
261 netdev->hw_features |= NETIF_F_GSO_UDP_TUNNEL | in xgbe_config_netdev()
264 netdev->udp_tunnel_nic_info = xgbe_get_udp_tunnel_info(); in xgbe_config_netdev()
267 netdev->vlan_features |= NETIF_F_SG | in xgbe_config_netdev()
273 netdev->features |= netdev->hw_features; in xgbe_config_netdev()
274 pdata->netdev_features = netdev->features; in xgbe_config_netdev()
276 netdev->priv_flags |= IFF_UNICAST_FLT; in xgbe_config_netdev()
277 netdev->min_mtu = 0; in xgbe_config_netdev()
278 netdev->max_mtu = XGMAC_GIANT_PACKET_MTU - XGBE_ETH_FRAME_HDR; in xgbe_config_netdev()
281 netdev->watchdog_timeo = 0; in xgbe_config_netdev()
298 netif_dbg(pdata, drv, pdata->netdev, "%u Tx software queues\n", in xgbe_config_netdev()
299 pdata->tx_ring_count); in xgbe_config_netdev()
300 netif_dbg(pdata, drv, pdata->netdev, "%u Rx software queues\n", in xgbe_config_netdev()
301 pdata->rx_ring_count); in xgbe_config_netdev()
308 struct net_device *netdev = pdata->netdev; in xgbe_deconfig_netdev()
317 pdata->phy_if.phy_exit(pdata); in xgbe_deconfig_netdev()
326 if (netdev->netdev_ops != xgbe_get_netdev_ops()) in xgbe_netdev_event()