David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 1 | /********************************************************************** |
| 2 | * Author: Cavium Networks |
| 3 | * |
| 4 | * Contact: support@caviumnetworks.com |
| 5 | * This file is part of the OCTEON SDK |
| 6 | * |
| 7 | * Copyright (c) 2003-2007 Cavium Networks |
| 8 | * |
| 9 | * This file is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License, Version 2, as |
| 11 | * published by the Free Software Foundation. |
| 12 | * |
| 13 | * This file is distributed in the hope that it will be useful, but |
| 14 | * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty |
| 15 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or |
| 16 | * NONINFRINGEMENT. See the GNU General Public License for more |
| 17 | * details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this file; if not, write to the Free Software |
| 21 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 22 | * or visit http://www.gnu.org/licenses/. |
| 23 | * |
| 24 | * This file may also be available under a different license from Cavium. |
| 25 | * Contact Cavium Networks for more information |
| 26 | **********************************************************************/ |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 27 | #include <linux/platform_device.h> |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 28 | #include <linux/kernel.h> |
| 29 | #include <linux/init.h> |
| 30 | #include <linux/module.h> |
| 31 | #include <linux/netdevice.h> |
| 32 | #include <linux/etherdevice.h> |
David Daney | f6ed1b3 | 2009-10-14 12:04:42 -0700 | [diff] [blame] | 33 | #include <linux/phy.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 34 | #include <linux/slab.h> |
Imre Kaloz | dc890df | 2012-04-19 12:27:27 +0200 | [diff] [blame] | 35 | #include <linux/interrupt.h> |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 36 | #include <linux/of_net.h> |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 37 | |
| 38 | #include <net/dst.h> |
| 39 | |
| 40 | #include <asm/octeon/octeon.h> |
| 41 | |
| 42 | #include "ethernet-defines.h" |
David Daney | a620c16 | 2009-06-23 16:20:56 -0700 | [diff] [blame] | 43 | #include "octeon-ethernet.h" |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 44 | #include "ethernet-mem.h" |
| 45 | #include "ethernet-rx.h" |
| 46 | #include "ethernet-tx.h" |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 47 | #include "ethernet-mdio.h" |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 48 | #include "ethernet-util.h" |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 49 | |
David Daney | af86649 | 2011-11-22 14:47:00 +0000 | [diff] [blame] | 50 | #include <asm/octeon/cvmx-pip.h> |
| 51 | #include <asm/octeon/cvmx-pko.h> |
| 52 | #include <asm/octeon/cvmx-fau.h> |
| 53 | #include <asm/octeon/cvmx-ipd.h> |
| 54 | #include <asm/octeon/cvmx-helper.h> |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 55 | |
David Daney | af86649 | 2011-11-22 14:47:00 +0000 | [diff] [blame] | 56 | #include <asm/octeon/cvmx-gmxx-defs.h> |
| 57 | #include <asm/octeon/cvmx-smix-defs.h> |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 58 | |
| 59 | #if defined(CONFIG_CAVIUM_OCTEON_NUM_PACKET_BUFFERS) \ |
| 60 | && CONFIG_CAVIUM_OCTEON_NUM_PACKET_BUFFERS |
| 61 | int num_packet_buffers = CONFIG_CAVIUM_OCTEON_NUM_PACKET_BUFFERS; |
| 62 | #else |
| 63 | int num_packet_buffers = 1024; |
| 64 | #endif |
| 65 | module_param(num_packet_buffers, int, 0444); |
| 66 | MODULE_PARM_DESC(num_packet_buffers, "\n" |
| 67 | "\tNumber of packet buffers to allocate and store in the\n" |
| 68 | "\tFPA. By default, 1024 packet buffers are used unless\n" |
| 69 | "\tCONFIG_CAVIUM_OCTEON_NUM_PACKET_BUFFERS is defined."); |
| 70 | |
| 71 | int pow_receive_group = 15; |
| 72 | module_param(pow_receive_group, int, 0444); |
| 73 | MODULE_PARM_DESC(pow_receive_group, "\n" |
| 74 | "\tPOW group to receive packets from. All ethernet hardware\n" |
| 75 | "\twill be configured to send incomming packets to this POW\n" |
| 76 | "\tgroup. Also any other software can submit packets to this\n" |
| 77 | "\tgroup for the kernel to process."); |
| 78 | |
| 79 | int pow_send_group = -1; |
| 80 | module_param(pow_send_group, int, 0644); |
| 81 | MODULE_PARM_DESC(pow_send_group, "\n" |
| 82 | "\tPOW group to send packets to other software on. This\n" |
| 83 | "\tcontrols the creation of the virtual device pow0.\n" |
| 84 | "\talways_use_pow also depends on this value."); |
| 85 | |
| 86 | int always_use_pow; |
| 87 | module_param(always_use_pow, int, 0444); |
| 88 | MODULE_PARM_DESC(always_use_pow, "\n" |
| 89 | "\tWhen set, always send to the pow group. This will cause\n" |
| 90 | "\tpackets sent to real ethernet devices to be sent to the\n" |
| 91 | "\tPOW group instead of the hardware. Unless some other\n" |
| 92 | "\tapplication changes the config, packets will still be\n" |
| 93 | "\treceived from the low level hardware. Use this option\n" |
| 94 | "\tto allow a CVMX app to intercept all packets from the\n" |
| 95 | "\tlinux kernel. You must specify pow_send_group along with\n" |
| 96 | "\tthis option."); |
| 97 | |
| 98 | char pow_send_list[128] = ""; |
| 99 | module_param_string(pow_send_list, pow_send_list, sizeof(pow_send_list), 0444); |
| 100 | MODULE_PARM_DESC(pow_send_list, "\n" |
| 101 | "\tComma separated list of ethernet devices that should use the\n" |
| 102 | "\tPOW for transmit instead of the actual ethernet hardware. This\n" |
| 103 | "\tis a per port version of always_use_pow. always_use_pow takes\n" |
| 104 | "\tprecedence over this list. For example, setting this to\n" |
| 105 | "\t\"eth2,spi3,spi7\" would cause these three devices to transmit\n" |
| 106 | "\tusing the pow_send_group."); |
| 107 | |
David Daney | 3368c78 | 2010-01-07 11:05:04 -0800 | [diff] [blame] | 108 | int max_rx_cpus = -1; |
| 109 | module_param(max_rx_cpus, int, 0444); |
| 110 | MODULE_PARM_DESC(max_rx_cpus, "\n" |
| 111 | "\t\tThe maximum number of CPUs to use for packet reception.\n" |
| 112 | "\t\tUse -1 to use all available CPUs."); |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 113 | |
David Daney | 3368c78 | 2010-01-07 11:05:04 -0800 | [diff] [blame] | 114 | int rx_napi_weight = 32; |
| 115 | module_param(rx_napi_weight, int, 0444); |
| 116 | MODULE_PARM_DESC(rx_napi_weight, "The NAPI WEIGHT parameter."); |
David Daney | 13c5939 | 2009-10-12 12:04:32 -0700 | [diff] [blame] | 117 | |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 118 | /** |
David Daney | f8c2648 | 2010-02-15 12:13:17 -0800 | [diff] [blame] | 119 | * cvm_oct_poll_queue - Workqueue for polling operations. |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 120 | */ |
David Daney | f8c2648 | 2010-02-15 12:13:17 -0800 | [diff] [blame] | 121 | struct workqueue_struct *cvm_oct_poll_queue; |
| 122 | |
| 123 | /** |
| 124 | * cvm_oct_poll_queue_stopping - flag to indicate polling should stop. |
| 125 | * |
| 126 | * Set to one right before cvm_oct_poll_queue is destroyed. |
| 127 | */ |
| 128 | atomic_t cvm_oct_poll_queue_stopping = ATOMIC_INIT(0); |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 129 | |
| 130 | /** |
| 131 | * Array of every ethernet device owned by this driver indexed by |
| 132 | * the ipd input port number. |
| 133 | */ |
| 134 | struct net_device *cvm_oct_device[TOTAL_NUMBER_OF_PORTS]; |
| 135 | |
David Daney | 4898c56 | 2010-02-15 15:06:47 -0800 | [diff] [blame] | 136 | u64 cvm_oct_tx_poll_interval; |
| 137 | |
David Daney | f8c2648 | 2010-02-15 12:13:17 -0800 | [diff] [blame] | 138 | static void cvm_oct_rx_refill_worker(struct work_struct *work); |
| 139 | static DECLARE_DELAYED_WORK(cvm_oct_rx_refill_work, cvm_oct_rx_refill_worker); |
| 140 | |
| 141 | static void cvm_oct_rx_refill_worker(struct work_struct *work) |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 142 | { |
David Daney | f8c2648 | 2010-02-15 12:13:17 -0800 | [diff] [blame] | 143 | /* |
| 144 | * FPA 0 may have been drained, try to refill it if we need |
| 145 | * more than num_packet_buffers / 2, otherwise normal receive |
| 146 | * processing will refill it. If it were drained, no packets |
| 147 | * could be received so cvm_oct_napi_poll would never be |
| 148 | * invoked to do the refill. |
| 149 | */ |
| 150 | cvm_oct_rx_refill_pool(num_packet_buffers / 2); |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 151 | |
David Daney | f8c2648 | 2010-02-15 12:13:17 -0800 | [diff] [blame] | 152 | if (!atomic_read(&cvm_oct_poll_queue_stopping)) |
| 153 | queue_delayed_work(cvm_oct_poll_queue, |
| 154 | &cvm_oct_rx_refill_work, HZ); |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 155 | } |
| 156 | |
David Daney | 4898c56 | 2010-02-15 15:06:47 -0800 | [diff] [blame] | 157 | static void cvm_oct_periodic_worker(struct work_struct *work) |
David Daney | f8c2648 | 2010-02-15 12:13:17 -0800 | [diff] [blame] | 158 | { |
| 159 | struct octeon_ethernet *priv = container_of(work, |
| 160 | struct octeon_ethernet, |
David Daney | 4898c56 | 2010-02-15 15:06:47 -0800 | [diff] [blame] | 161 | port_periodic_work.work); |
David Daney | f8c2648 | 2010-02-15 12:13:17 -0800 | [diff] [blame] | 162 | |
| 163 | if (priv->poll) |
| 164 | priv->poll(cvm_oct_device[priv->port]); |
David Daney | 4898c56 | 2010-02-15 15:06:47 -0800 | [diff] [blame] | 165 | |
David Daney | f8c2648 | 2010-02-15 12:13:17 -0800 | [diff] [blame] | 166 | cvm_oct_device[priv->port]->netdev_ops->ndo_get_stats(cvm_oct_device[priv->port]); |
David Daney | 4898c56 | 2010-02-15 15:06:47 -0800 | [diff] [blame] | 167 | |
David Daney | f8c2648 | 2010-02-15 12:13:17 -0800 | [diff] [blame] | 168 | if (!atomic_read(&cvm_oct_poll_queue_stopping)) |
David Daney | 4898c56 | 2010-02-15 15:06:47 -0800 | [diff] [blame] | 169 | queue_delayed_work(cvm_oct_poll_queue, &priv->port_periodic_work, HZ); |
David Daney | f8c2648 | 2010-02-15 12:13:17 -0800 | [diff] [blame] | 170 | } |
| 171 | |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 172 | static __devinit void cvm_oct_configure_common_hw(void) |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 173 | { |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 174 | /* Setup the FPA */ |
| 175 | cvmx_fpa_enable(); |
| 176 | cvm_oct_mem_fill_fpa(CVMX_FPA_PACKET_POOL, CVMX_FPA_PACKET_POOL_SIZE, |
| 177 | num_packet_buffers); |
| 178 | cvm_oct_mem_fill_fpa(CVMX_FPA_WQE_POOL, CVMX_FPA_WQE_POOL_SIZE, |
| 179 | num_packet_buffers); |
| 180 | if (CVMX_FPA_OUTPUT_BUFFER_POOL != CVMX_FPA_PACKET_POOL) |
| 181 | cvm_oct_mem_fill_fpa(CVMX_FPA_OUTPUT_BUFFER_POOL, |
| 182 | CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE, 128); |
| 183 | |
| 184 | if (USE_RED) |
| 185 | cvmx_helper_setup_red(num_packet_buffers / 4, |
| 186 | num_packet_buffers / 8); |
| 187 | |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 188 | } |
| 189 | |
| 190 | /** |
David Daney | ec977c5 | 2010-02-16 17:25:32 -0800 | [diff] [blame] | 191 | * cvm_oct_free_work- Free a work queue entry |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 192 | * |
David Daney | ec977c5 | 2010-02-16 17:25:32 -0800 | [diff] [blame] | 193 | * @work_queue_entry: Work queue entry to free |
| 194 | * |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 195 | * Returns Zero on success, Negative on failure. |
| 196 | */ |
| 197 | int cvm_oct_free_work(void *work_queue_entry) |
| 198 | { |
| 199 | cvmx_wqe_t *work = work_queue_entry; |
| 200 | |
| 201 | int segments = work->word2.s.bufs; |
| 202 | union cvmx_buf_ptr segment_ptr = work->packet_ptr; |
| 203 | |
| 204 | while (segments--) { |
| 205 | union cvmx_buf_ptr next_ptr = *(union cvmx_buf_ptr *) |
| 206 | cvmx_phys_to_ptr(segment_ptr.s.addr - 8); |
| 207 | if (unlikely(!segment_ptr.s.i)) |
| 208 | cvmx_fpa_free(cvm_oct_get_buffer_ptr(segment_ptr), |
| 209 | segment_ptr.s.pool, |
| 210 | DONT_WRITEBACK(CVMX_FPA_PACKET_POOL_SIZE / |
| 211 | 128)); |
| 212 | segment_ptr = next_ptr; |
| 213 | } |
| 214 | cvmx_fpa_free(work, CVMX_FPA_WQE_POOL, DONT_WRITEBACK(1)); |
| 215 | |
| 216 | return 0; |
| 217 | } |
| 218 | EXPORT_SYMBOL(cvm_oct_free_work); |
| 219 | |
| 220 | /** |
David Daney | ec977c5 | 2010-02-16 17:25:32 -0800 | [diff] [blame] | 221 | * cvm_oct_common_get_stats - get the low level ethernet statistics |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 222 | * @dev: Device to get the statistics from |
David Daney | ec977c5 | 2010-02-16 17:25:32 -0800 | [diff] [blame] | 223 | * |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 224 | * Returns Pointer to the statistics |
| 225 | */ |
| 226 | static struct net_device_stats *cvm_oct_common_get_stats(struct net_device *dev) |
| 227 | { |
| 228 | cvmx_pip_port_status_t rx_status; |
| 229 | cvmx_pko_port_status_t tx_status; |
| 230 | struct octeon_ethernet *priv = netdev_priv(dev); |
| 231 | |
| 232 | if (priv->port < CVMX_PIP_NUM_INPUT_PORTS) { |
| 233 | if (octeon_is_simulation()) { |
| 234 | /* The simulator doesn't support statistics */ |
| 235 | memset(&rx_status, 0, sizeof(rx_status)); |
| 236 | memset(&tx_status, 0, sizeof(tx_status)); |
| 237 | } else { |
| 238 | cvmx_pip_get_port_status(priv->port, 1, &rx_status); |
| 239 | cvmx_pko_get_port_status(priv->port, 1, &tx_status); |
| 240 | } |
| 241 | |
| 242 | priv->stats.rx_packets += rx_status.inb_packets; |
| 243 | priv->stats.tx_packets += tx_status.packets; |
| 244 | priv->stats.rx_bytes += rx_status.inb_octets; |
| 245 | priv->stats.tx_bytes += tx_status.octets; |
| 246 | priv->stats.multicast += rx_status.multicast_packets; |
| 247 | priv->stats.rx_crc_errors += rx_status.inb_errors; |
| 248 | priv->stats.rx_frame_errors += rx_status.fcs_align_err_packets; |
| 249 | |
| 250 | /* |
| 251 | * The drop counter must be incremented atomically |
| 252 | * since the RX tasklet also increments it. |
| 253 | */ |
| 254 | #ifdef CONFIG_64BIT |
| 255 | atomic64_add(rx_status.dropped_packets, |
| 256 | (atomic64_t *)&priv->stats.rx_dropped); |
| 257 | #else |
| 258 | atomic_add(rx_status.dropped_packets, |
| 259 | (atomic_t *)&priv->stats.rx_dropped); |
| 260 | #endif |
| 261 | } |
| 262 | |
| 263 | return &priv->stats; |
| 264 | } |
| 265 | |
| 266 | /** |
David Daney | ec977c5 | 2010-02-16 17:25:32 -0800 | [diff] [blame] | 267 | * cvm_oct_common_change_mtu - change the link MTU |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 268 | * @dev: Device to change |
| 269 | * @new_mtu: The new MTU |
| 270 | * |
| 271 | * Returns Zero on success |
| 272 | */ |
| 273 | static int cvm_oct_common_change_mtu(struct net_device *dev, int new_mtu) |
| 274 | { |
| 275 | struct octeon_ethernet *priv = netdev_priv(dev); |
| 276 | int interface = INTERFACE(priv->port); |
| 277 | int index = INDEX(priv->port); |
| 278 | #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) |
| 279 | int vlan_bytes = 4; |
| 280 | #else |
| 281 | int vlan_bytes = 0; |
| 282 | #endif |
| 283 | |
| 284 | /* |
| 285 | * Limit the MTU to make sure the ethernet packets are between |
| 286 | * 64 bytes and 65535 bytes. |
| 287 | */ |
| 288 | if ((new_mtu + 14 + 4 + vlan_bytes < 64) |
| 289 | || (new_mtu + 14 + 4 + vlan_bytes > 65392)) { |
| 290 | pr_err("MTU must be between %d and %d.\n", |
| 291 | 64 - 14 - 4 - vlan_bytes, 65392 - 14 - 4 - vlan_bytes); |
| 292 | return -EINVAL; |
| 293 | } |
| 294 | dev->mtu = new_mtu; |
| 295 | |
| 296 | if ((interface < 2) |
| 297 | && (cvmx_helper_interface_get_mode(interface) != |
| 298 | CVMX_HELPER_INTERFACE_MODE_SPI)) { |
| 299 | /* Add ethernet header and FCS, and VLAN if configured. */ |
| 300 | int max_packet = new_mtu + 14 + 4 + vlan_bytes; |
| 301 | |
| 302 | if (OCTEON_IS_MODEL(OCTEON_CN3XXX) |
| 303 | || OCTEON_IS_MODEL(OCTEON_CN58XX)) { |
| 304 | /* Signal errors on packets larger than the MTU */ |
| 305 | cvmx_write_csr(CVMX_GMXX_RXX_FRM_MAX(index, interface), |
| 306 | max_packet); |
| 307 | } else { |
| 308 | /* |
| 309 | * Set the hardware to truncate packets larger |
| 310 | * than the MTU and smaller the 64 bytes. |
| 311 | */ |
| 312 | union cvmx_pip_frm_len_chkx frm_len_chk; |
| 313 | frm_len_chk.u64 = 0; |
| 314 | frm_len_chk.s.minlen = 64; |
| 315 | frm_len_chk.s.maxlen = max_packet; |
| 316 | cvmx_write_csr(CVMX_PIP_FRM_LEN_CHKX(interface), |
| 317 | frm_len_chk.u64); |
| 318 | } |
| 319 | /* |
| 320 | * Set the hardware to truncate packets larger than |
| 321 | * the MTU. The jabber register must be set to a |
| 322 | * multiple of 8 bytes, so round up. |
| 323 | */ |
| 324 | cvmx_write_csr(CVMX_GMXX_RXX_JABBER(index, interface), |
| 325 | (max_packet + 7) & ~7u); |
| 326 | } |
| 327 | return 0; |
| 328 | } |
| 329 | |
| 330 | /** |
David Daney | ec977c5 | 2010-02-16 17:25:32 -0800 | [diff] [blame] | 331 | * cvm_oct_common_set_multicast_list - set the multicast list |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 332 | * @dev: Device to work on |
| 333 | */ |
| 334 | static void cvm_oct_common_set_multicast_list(struct net_device *dev) |
| 335 | { |
| 336 | union cvmx_gmxx_prtx_cfg gmx_cfg; |
| 337 | struct octeon_ethernet *priv = netdev_priv(dev); |
| 338 | int interface = INTERFACE(priv->port); |
| 339 | int index = INDEX(priv->port); |
| 340 | |
| 341 | if ((interface < 2) |
| 342 | && (cvmx_helper_interface_get_mode(interface) != |
| 343 | CVMX_HELPER_INTERFACE_MODE_SPI)) { |
| 344 | union cvmx_gmxx_rxx_adr_ctl control; |
| 345 | control.u64 = 0; |
| 346 | control.s.bcst = 1; /* Allow broadcast MAC addresses */ |
| 347 | |
Jiri Pirko | d590794 | 2010-02-18 05:10:14 +0000 | [diff] [blame] | 348 | if (!netdev_mc_empty(dev) || (dev->flags & IFF_ALLMULTI) || |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 349 | (dev->flags & IFF_PROMISC)) |
| 350 | /* Force accept multicast packets */ |
| 351 | control.s.mcst = 2; |
| 352 | else |
Justin P. Mattock | 215c47c | 2012-03-26 21:34:18 -0700 | [diff] [blame] | 353 | /* Force reject multicast packets */ |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 354 | control.s.mcst = 1; |
| 355 | |
| 356 | if (dev->flags & IFF_PROMISC) |
| 357 | /* |
| 358 | * Reject matches if promisc. Since CAM is |
| 359 | * shut off, should accept everything. |
| 360 | */ |
| 361 | control.s.cam_mode = 0; |
| 362 | else |
| 363 | /* Filter packets based on the CAM */ |
| 364 | control.s.cam_mode = 1; |
| 365 | |
| 366 | gmx_cfg.u64 = |
| 367 | cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface)); |
| 368 | cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface), |
| 369 | gmx_cfg.u64 & ~1ull); |
| 370 | |
| 371 | cvmx_write_csr(CVMX_GMXX_RXX_ADR_CTL(index, interface), |
| 372 | control.u64); |
| 373 | if (dev->flags & IFF_PROMISC) |
| 374 | cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM_EN |
| 375 | (index, interface), 0); |
| 376 | else |
| 377 | cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM_EN |
| 378 | (index, interface), 1); |
| 379 | |
| 380 | cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface), |
| 381 | gmx_cfg.u64); |
| 382 | } |
| 383 | } |
| 384 | |
| 385 | /** |
David Daney | ec977c5 | 2010-02-16 17:25:32 -0800 | [diff] [blame] | 386 | * cvm_oct_common_set_mac_address - set the hardware MAC address for a device |
| 387 | * @dev: The device in question. |
| 388 | * @addr: Address structure to change it too. |
| 389 | |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 390 | * Returns Zero on success |
| 391 | */ |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 392 | static int cvm_oct_set_mac_filter(struct net_device *dev) |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 393 | { |
| 394 | struct octeon_ethernet *priv = netdev_priv(dev); |
| 395 | union cvmx_gmxx_prtx_cfg gmx_cfg; |
| 396 | int interface = INTERFACE(priv->port); |
| 397 | int index = INDEX(priv->port); |
| 398 | |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 399 | if ((interface < 2) |
| 400 | && (cvmx_helper_interface_get_mode(interface) != |
| 401 | CVMX_HELPER_INTERFACE_MODE_SPI)) { |
| 402 | int i; |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 403 | uint8_t *ptr = dev->dev_addr; |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 404 | uint64_t mac = 0; |
| 405 | for (i = 0; i < 6; i++) |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 406 | mac = (mac << 8) | (uint64_t)ptr[i]; |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 407 | |
| 408 | gmx_cfg.u64 = |
| 409 | cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface)); |
| 410 | cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface), |
| 411 | gmx_cfg.u64 & ~1ull); |
| 412 | |
| 413 | cvmx_write_csr(CVMX_GMXX_SMACX(index, interface), mac); |
| 414 | cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM0(index, interface), |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 415 | ptr[0]); |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 416 | cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM1(index, interface), |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 417 | ptr[1]); |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 418 | cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM2(index, interface), |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 419 | ptr[2]); |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 420 | cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM3(index, interface), |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 421 | ptr[3]); |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 422 | cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM4(index, interface), |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 423 | ptr[4]); |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 424 | cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM5(index, interface), |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 425 | ptr[5]); |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 426 | cvm_oct_common_set_multicast_list(dev); |
| 427 | cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface), |
| 428 | gmx_cfg.u64); |
| 429 | } |
| 430 | return 0; |
| 431 | } |
| 432 | |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 433 | static int cvm_oct_common_set_mac_address(struct net_device *dev, void *addr) |
| 434 | { |
| 435 | int r = eth_mac_addr(dev, addr); |
| 436 | |
| 437 | if (r) |
| 438 | return r; |
| 439 | return cvm_oct_set_mac_filter(dev); |
| 440 | } |
| 441 | |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 442 | /** |
David Daney | ec977c5 | 2010-02-16 17:25:32 -0800 | [diff] [blame] | 443 | * cvm_oct_common_init - per network device initialization |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 444 | * @dev: Device to initialize |
David Daney | ec977c5 | 2010-02-16 17:25:32 -0800 | [diff] [blame] | 445 | * |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 446 | * Returns Zero on success |
| 447 | */ |
| 448 | int cvm_oct_common_init(struct net_device *dev) |
| 449 | { |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 450 | struct octeon_ethernet *priv = netdev_priv(dev); |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 451 | const u8 *mac = NULL; |
David Daney | 13c5939 | 2009-10-12 12:04:32 -0700 | [diff] [blame] | 452 | |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 453 | if (priv->of_node) |
| 454 | mac = of_get_mac_address(priv->of_node); |
David Daney | 13c5939 | 2009-10-12 12:04:32 -0700 | [diff] [blame] | 455 | |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 456 | if (mac && is_valid_ether_addr(mac)) { |
| 457 | memcpy(dev->dev_addr, mac, ETH_ALEN); |
| 458 | dev->addr_assign_type &= ~NET_ADDR_RANDOM; |
| 459 | } else { |
| 460 | eth_hw_addr_random(dev); |
| 461 | } |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 462 | |
| 463 | /* |
| 464 | * Force the interface to use the POW send if always_use_pow |
| 465 | * was specified or it is in the pow send list. |
| 466 | */ |
| 467 | if ((pow_send_group != -1) |
| 468 | && (always_use_pow || strstr(pow_send_list, dev->name))) |
| 469 | priv->queue = -1; |
| 470 | |
David Daney | 924cc26 | 2010-01-07 11:05:05 -0800 | [diff] [blame] | 471 | if (priv->queue != -1) { |
| 472 | dev->features |= NETIF_F_SG; |
| 473 | if (USE_HW_TCPUDP_CHECKSUM) |
| 474 | dev->features |= NETIF_F_IP_CSUM; |
| 475 | } |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 476 | |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 477 | /* We do our own locking, Linux doesn't need to */ |
| 478 | dev->features |= NETIF_F_LLTX; |
| 479 | SET_ETHTOOL_OPS(dev, &cvm_oct_ethtool_ops); |
| 480 | |
David Daney | f6ed1b3 | 2009-10-14 12:04:42 -0700 | [diff] [blame] | 481 | cvm_oct_phy_setup_device(dev); |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 482 | cvm_oct_set_mac_filter(dev); |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 483 | dev->netdev_ops->ndo_change_mtu(dev, dev->mtu); |
| 484 | |
| 485 | /* |
| 486 | * Zero out stats for port so we won't mistakenly show |
| 487 | * counters from the bootloader. |
| 488 | */ |
| 489 | memset(dev->netdev_ops->ndo_get_stats(dev), 0, |
| 490 | sizeof(struct net_device_stats)); |
| 491 | |
| 492 | return 0; |
| 493 | } |
| 494 | |
| 495 | void cvm_oct_common_uninit(struct net_device *dev) |
| 496 | { |
David Daney | f6ed1b3 | 2009-10-14 12:04:42 -0700 | [diff] [blame] | 497 | struct octeon_ethernet *priv = netdev_priv(dev); |
| 498 | |
| 499 | if (priv->phydev) |
| 500 | phy_disconnect(priv->phydev); |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 501 | } |
| 502 | |
| 503 | static const struct net_device_ops cvm_oct_npi_netdev_ops = { |
| 504 | .ndo_init = cvm_oct_common_init, |
| 505 | .ndo_uninit = cvm_oct_common_uninit, |
| 506 | .ndo_start_xmit = cvm_oct_xmit, |
Jiri Pirko | afc4b13 | 2011-08-16 06:29:01 +0000 | [diff] [blame] | 507 | .ndo_set_rx_mode = cvm_oct_common_set_multicast_list, |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 508 | .ndo_set_mac_address = cvm_oct_common_set_mac_address, |
| 509 | .ndo_do_ioctl = cvm_oct_ioctl, |
| 510 | .ndo_change_mtu = cvm_oct_common_change_mtu, |
| 511 | .ndo_get_stats = cvm_oct_common_get_stats, |
| 512 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 513 | .ndo_poll_controller = cvm_oct_poll_controller, |
| 514 | #endif |
| 515 | }; |
| 516 | static const struct net_device_ops cvm_oct_xaui_netdev_ops = { |
| 517 | .ndo_init = cvm_oct_xaui_init, |
| 518 | .ndo_uninit = cvm_oct_xaui_uninit, |
| 519 | .ndo_open = cvm_oct_xaui_open, |
| 520 | .ndo_stop = cvm_oct_xaui_stop, |
| 521 | .ndo_start_xmit = cvm_oct_xmit, |
Jiri Pirko | afc4b13 | 2011-08-16 06:29:01 +0000 | [diff] [blame] | 522 | .ndo_set_rx_mode = cvm_oct_common_set_multicast_list, |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 523 | .ndo_set_mac_address = cvm_oct_common_set_mac_address, |
| 524 | .ndo_do_ioctl = cvm_oct_ioctl, |
| 525 | .ndo_change_mtu = cvm_oct_common_change_mtu, |
| 526 | .ndo_get_stats = cvm_oct_common_get_stats, |
| 527 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 528 | .ndo_poll_controller = cvm_oct_poll_controller, |
| 529 | #endif |
| 530 | }; |
| 531 | static const struct net_device_ops cvm_oct_sgmii_netdev_ops = { |
| 532 | .ndo_init = cvm_oct_sgmii_init, |
| 533 | .ndo_uninit = cvm_oct_sgmii_uninit, |
| 534 | .ndo_open = cvm_oct_sgmii_open, |
| 535 | .ndo_stop = cvm_oct_sgmii_stop, |
| 536 | .ndo_start_xmit = cvm_oct_xmit, |
Jiri Pirko | afc4b13 | 2011-08-16 06:29:01 +0000 | [diff] [blame] | 537 | .ndo_set_rx_mode = cvm_oct_common_set_multicast_list, |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 538 | .ndo_set_mac_address = cvm_oct_common_set_mac_address, |
| 539 | .ndo_do_ioctl = cvm_oct_ioctl, |
| 540 | .ndo_change_mtu = cvm_oct_common_change_mtu, |
| 541 | .ndo_get_stats = cvm_oct_common_get_stats, |
| 542 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 543 | .ndo_poll_controller = cvm_oct_poll_controller, |
| 544 | #endif |
| 545 | }; |
| 546 | static const struct net_device_ops cvm_oct_spi_netdev_ops = { |
| 547 | .ndo_init = cvm_oct_spi_init, |
| 548 | .ndo_uninit = cvm_oct_spi_uninit, |
| 549 | .ndo_start_xmit = cvm_oct_xmit, |
Jiri Pirko | afc4b13 | 2011-08-16 06:29:01 +0000 | [diff] [blame] | 550 | .ndo_set_rx_mode = cvm_oct_common_set_multicast_list, |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 551 | .ndo_set_mac_address = cvm_oct_common_set_mac_address, |
| 552 | .ndo_do_ioctl = cvm_oct_ioctl, |
| 553 | .ndo_change_mtu = cvm_oct_common_change_mtu, |
| 554 | .ndo_get_stats = cvm_oct_common_get_stats, |
| 555 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 556 | .ndo_poll_controller = cvm_oct_poll_controller, |
| 557 | #endif |
| 558 | }; |
| 559 | static const struct net_device_ops cvm_oct_rgmii_netdev_ops = { |
| 560 | .ndo_init = cvm_oct_rgmii_init, |
| 561 | .ndo_uninit = cvm_oct_rgmii_uninit, |
| 562 | .ndo_open = cvm_oct_rgmii_open, |
| 563 | .ndo_stop = cvm_oct_rgmii_stop, |
| 564 | .ndo_start_xmit = cvm_oct_xmit, |
Jiri Pirko | afc4b13 | 2011-08-16 06:29:01 +0000 | [diff] [blame] | 565 | .ndo_set_rx_mode = cvm_oct_common_set_multicast_list, |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 566 | .ndo_set_mac_address = cvm_oct_common_set_mac_address, |
| 567 | .ndo_do_ioctl = cvm_oct_ioctl, |
| 568 | .ndo_change_mtu = cvm_oct_common_change_mtu, |
| 569 | .ndo_get_stats = cvm_oct_common_get_stats, |
| 570 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 571 | .ndo_poll_controller = cvm_oct_poll_controller, |
| 572 | #endif |
| 573 | }; |
| 574 | static const struct net_device_ops cvm_oct_pow_netdev_ops = { |
| 575 | .ndo_init = cvm_oct_common_init, |
| 576 | .ndo_start_xmit = cvm_oct_xmit_pow, |
Jiri Pirko | afc4b13 | 2011-08-16 06:29:01 +0000 | [diff] [blame] | 577 | .ndo_set_rx_mode = cvm_oct_common_set_multicast_list, |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 578 | .ndo_set_mac_address = cvm_oct_common_set_mac_address, |
| 579 | .ndo_do_ioctl = cvm_oct_ioctl, |
| 580 | .ndo_change_mtu = cvm_oct_common_change_mtu, |
| 581 | .ndo_get_stats = cvm_oct_common_get_stats, |
| 582 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 583 | .ndo_poll_controller = cvm_oct_poll_controller, |
| 584 | #endif |
| 585 | }; |
| 586 | |
David Daney | f6ed1b3 | 2009-10-14 12:04:42 -0700 | [diff] [blame] | 587 | extern void octeon_mdiobus_force_mod_depencency(void); |
| 588 | |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 589 | static struct device_node * __devinit cvm_oct_of_get_child(const struct device_node *parent, |
| 590 | int reg_val) |
| 591 | { |
| 592 | struct device_node *node = NULL; |
| 593 | int size; |
| 594 | const __be32 *addr; |
| 595 | |
| 596 | for (;;) { |
| 597 | node = of_get_next_child(parent, node); |
| 598 | if (!node) |
| 599 | break; |
| 600 | addr = of_get_property(node, "reg", &size); |
| 601 | if (addr && (be32_to_cpu(*addr) == reg_val)) |
| 602 | break; |
| 603 | } |
| 604 | return node; |
| 605 | } |
| 606 | |
| 607 | static struct device_node * __devinit cvm_oct_node_for_port(struct device_node *pip, |
| 608 | int interface, int port) |
| 609 | { |
| 610 | struct device_node *ni, *np; |
| 611 | |
| 612 | ni = cvm_oct_of_get_child(pip, interface); |
| 613 | if (!ni) |
| 614 | return NULL; |
| 615 | |
| 616 | np = cvm_oct_of_get_child(ni, port); |
| 617 | of_node_put(ni); |
| 618 | |
| 619 | return np; |
| 620 | } |
| 621 | |
| 622 | static int __devinit cvm_oct_probe(struct platform_device *pdev) |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 623 | { |
| 624 | int num_interfaces; |
| 625 | int interface; |
| 626 | int fau = FAU_NUM_PACKET_BUFFERS_TO_FREE; |
| 627 | int qos; |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 628 | struct device_node *pip; |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 629 | |
David Daney | f6ed1b3 | 2009-10-14 12:04:42 -0700 | [diff] [blame] | 630 | octeon_mdiobus_force_mod_depencency(); |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 631 | pr_notice("cavium-ethernet %s\n", OCTEON_ETHERNET_VERSION); |
| 632 | |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 633 | pip = pdev->dev.of_node; |
| 634 | if (!pip) { |
| 635 | pr_err("Error: No 'pip' in /aliases\n"); |
| 636 | return -EINVAL; |
| 637 | } |
David Daney | 13c5939 | 2009-10-12 12:04:32 -0700 | [diff] [blame] | 638 | |
David Daney | f8c2648 | 2010-02-15 12:13:17 -0800 | [diff] [blame] | 639 | cvm_oct_poll_queue = create_singlethread_workqueue("octeon-ethernet"); |
| 640 | if (cvm_oct_poll_queue == NULL) { |
| 641 | pr_err("octeon-ethernet: Cannot create workqueue"); |
| 642 | return -ENOMEM; |
| 643 | } |
| 644 | |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 645 | cvm_oct_configure_common_hw(); |
| 646 | |
| 647 | cvmx_helper_initialize_packet_io_global(); |
| 648 | |
| 649 | /* Change the input group for all ports before input is enabled */ |
| 650 | num_interfaces = cvmx_helper_get_number_of_interfaces(); |
| 651 | for (interface = 0; interface < num_interfaces; interface++) { |
| 652 | int num_ports = cvmx_helper_ports_on_interface(interface); |
| 653 | int port; |
| 654 | |
| 655 | for (port = cvmx_helper_get_ipd_port(interface, 0); |
| 656 | port < cvmx_helper_get_ipd_port(interface, num_ports); |
| 657 | port++) { |
| 658 | union cvmx_pip_prt_tagx pip_prt_tagx; |
| 659 | pip_prt_tagx.u64 = |
| 660 | cvmx_read_csr(CVMX_PIP_PRT_TAGX(port)); |
| 661 | pip_prt_tagx.s.grp = pow_receive_group; |
| 662 | cvmx_write_csr(CVMX_PIP_PRT_TAGX(port), |
| 663 | pip_prt_tagx.u64); |
| 664 | } |
| 665 | } |
| 666 | |
| 667 | cvmx_helper_ipd_and_packet_input_enable(); |
| 668 | |
| 669 | memset(cvm_oct_device, 0, sizeof(cvm_oct_device)); |
| 670 | |
| 671 | /* |
| 672 | * Initialize the FAU used for counting packet buffers that |
| 673 | * need to be freed. |
| 674 | */ |
| 675 | cvmx_fau_atomic_write32(FAU_NUM_PACKET_BUFFERS_TO_FREE, 0); |
| 676 | |
David Daney | 4898c56 | 2010-02-15 15:06:47 -0800 | [diff] [blame] | 677 | /* Initialize the FAU used for counting tx SKBs that need to be freed */ |
| 678 | cvmx_fau_atomic_write32(FAU_TOTAL_TX_TO_CLEAN, 0); |
| 679 | |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 680 | if ((pow_send_group != -1)) { |
| 681 | struct net_device *dev; |
| 682 | pr_info("\tConfiguring device for POW only access\n"); |
| 683 | dev = alloc_etherdev(sizeof(struct octeon_ethernet)); |
| 684 | if (dev) { |
| 685 | /* Initialize the device private structure. */ |
| 686 | struct octeon_ethernet *priv = netdev_priv(dev); |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 687 | |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 688 | dev->netdev_ops = &cvm_oct_pow_netdev_ops; |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 689 | priv->imode = CVMX_HELPER_INTERFACE_MODE_DISABLED; |
| 690 | priv->port = CVMX_PIP_NUM_INPUT_PORTS; |
| 691 | priv->queue = -1; |
| 692 | strcpy(dev->name, "pow%d"); |
| 693 | for (qos = 0; qos < 16; qos++) |
| 694 | skb_queue_head_init(&priv->tx_free_list[qos]); |
| 695 | |
| 696 | if (register_netdev(dev) < 0) { |
David Daney | 6568a23 | 2010-01-07 11:05:01 -0800 | [diff] [blame] | 697 | pr_err("Failed to register ethernet device for POW\n"); |
Vasiliy Kulikov | c4711c3 | 2010-09-28 21:08:01 +0400 | [diff] [blame] | 698 | free_netdev(dev); |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 699 | } else { |
| 700 | cvm_oct_device[CVMX_PIP_NUM_INPUT_PORTS] = dev; |
David Daney | 6568a23 | 2010-01-07 11:05:01 -0800 | [diff] [blame] | 701 | pr_info("%s: POW send group %d, receive group %d\n", |
| 702 | dev->name, pow_send_group, |
| 703 | pow_receive_group); |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 704 | } |
| 705 | } else { |
David Daney | 6568a23 | 2010-01-07 11:05:01 -0800 | [diff] [blame] | 706 | pr_err("Failed to allocate ethernet device for POW\n"); |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 707 | } |
| 708 | } |
| 709 | |
| 710 | num_interfaces = cvmx_helper_get_number_of_interfaces(); |
| 711 | for (interface = 0; interface < num_interfaces; interface++) { |
| 712 | cvmx_helper_interface_mode_t imode = |
| 713 | cvmx_helper_interface_get_mode(interface); |
| 714 | int num_ports = cvmx_helper_ports_on_interface(interface); |
| 715 | int port; |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 716 | int port_index; |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 717 | |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 718 | for (port_index = 0, port = cvmx_helper_get_ipd_port(interface, 0); |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 719 | port < cvmx_helper_get_ipd_port(interface, num_ports); |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 720 | port_index++, port++) { |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 721 | struct octeon_ethernet *priv; |
| 722 | struct net_device *dev = |
| 723 | alloc_etherdev(sizeof(struct octeon_ethernet)); |
| 724 | if (!dev) { |
David Daney | 6568a23 | 2010-01-07 11:05:01 -0800 | [diff] [blame] | 725 | pr_err("Failed to allocate ethernet device for port %d\n", port); |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 726 | continue; |
| 727 | } |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 728 | |
| 729 | /* Initialize the device private structure. */ |
| 730 | priv = netdev_priv(dev); |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 731 | priv->of_node = cvm_oct_node_for_port(pip, interface, port_index); |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 732 | |
David Daney | 4898c56 | 2010-02-15 15:06:47 -0800 | [diff] [blame] | 733 | INIT_DELAYED_WORK(&priv->port_periodic_work, |
| 734 | cvm_oct_periodic_worker); |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 735 | priv->imode = imode; |
| 736 | priv->port = port; |
| 737 | priv->queue = cvmx_pko_get_base_queue(priv->port); |
| 738 | priv->fau = fau - cvmx_pko_get_num_queues(port) * 4; |
| 739 | for (qos = 0; qos < 16; qos++) |
| 740 | skb_queue_head_init(&priv->tx_free_list[qos]); |
| 741 | for (qos = 0; qos < cvmx_pko_get_num_queues(port); |
| 742 | qos++) |
| 743 | cvmx_fau_atomic_write32(priv->fau + qos * 4, 0); |
| 744 | |
| 745 | switch (priv->imode) { |
| 746 | |
| 747 | /* These types don't support ports to IPD/PKO */ |
| 748 | case CVMX_HELPER_INTERFACE_MODE_DISABLED: |
| 749 | case CVMX_HELPER_INTERFACE_MODE_PCIE: |
| 750 | case CVMX_HELPER_INTERFACE_MODE_PICMG: |
| 751 | break; |
| 752 | |
| 753 | case CVMX_HELPER_INTERFACE_MODE_NPI: |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 754 | dev->netdev_ops = &cvm_oct_npi_netdev_ops; |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 755 | strcpy(dev->name, "npi%d"); |
| 756 | break; |
| 757 | |
| 758 | case CVMX_HELPER_INTERFACE_MODE_XAUI: |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 759 | dev->netdev_ops = &cvm_oct_xaui_netdev_ops; |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 760 | strcpy(dev->name, "xaui%d"); |
| 761 | break; |
| 762 | |
| 763 | case CVMX_HELPER_INTERFACE_MODE_LOOP: |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 764 | dev->netdev_ops = &cvm_oct_npi_netdev_ops; |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 765 | strcpy(dev->name, "loop%d"); |
| 766 | break; |
| 767 | |
| 768 | case CVMX_HELPER_INTERFACE_MODE_SGMII: |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 769 | dev->netdev_ops = &cvm_oct_sgmii_netdev_ops; |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 770 | strcpy(dev->name, "eth%d"); |
| 771 | break; |
| 772 | |
| 773 | case CVMX_HELPER_INTERFACE_MODE_SPI: |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 774 | dev->netdev_ops = &cvm_oct_spi_netdev_ops; |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 775 | strcpy(dev->name, "spi%d"); |
| 776 | break; |
| 777 | |
| 778 | case CVMX_HELPER_INTERFACE_MODE_RGMII: |
| 779 | case CVMX_HELPER_INTERFACE_MODE_GMII: |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 780 | dev->netdev_ops = &cvm_oct_rgmii_netdev_ops; |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 781 | strcpy(dev->name, "eth%d"); |
| 782 | break; |
| 783 | } |
| 784 | |
David Daney | f696a10 | 2009-06-23 11:34:08 -0700 | [diff] [blame] | 785 | if (!dev->netdev_ops) { |
Vasiliy Kulikov | c4711c3 | 2010-09-28 21:08:01 +0400 | [diff] [blame] | 786 | free_netdev(dev); |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 787 | } else if (register_netdev(dev) < 0) { |
| 788 | pr_err("Failed to register ethernet device " |
| 789 | "for interface %d, port %d\n", |
| 790 | interface, priv->port); |
Vasiliy Kulikov | c4711c3 | 2010-09-28 21:08:01 +0400 | [diff] [blame] | 791 | free_netdev(dev); |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 792 | } else { |
| 793 | cvm_oct_device[priv->port] = dev; |
| 794 | fau -= |
| 795 | cvmx_pko_get_num_queues(priv->port) * |
| 796 | sizeof(uint32_t); |
David Daney | f8c2648 | 2010-02-15 12:13:17 -0800 | [diff] [blame] | 797 | queue_delayed_work(cvm_oct_poll_queue, |
David Daney | 4898c56 | 2010-02-15 15:06:47 -0800 | [diff] [blame] | 798 | &priv->port_periodic_work, HZ); |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 799 | } |
| 800 | } |
| 801 | } |
| 802 | |
David Daney | 4898c56 | 2010-02-15 15:06:47 -0800 | [diff] [blame] | 803 | cvm_oct_tx_initialize(); |
David Daney | 3368c78 | 2010-01-07 11:05:04 -0800 | [diff] [blame] | 804 | cvm_oct_rx_initialize(); |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 805 | |
David Daney | 4898c56 | 2010-02-15 15:06:47 -0800 | [diff] [blame] | 806 | /* |
| 807 | * 150 uS: about 10 1500-byte packtes at 1GE. |
| 808 | */ |
| 809 | cvm_oct_tx_poll_interval = 150 * (octeon_get_clock_rate() / 1000000); |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 810 | |
David Daney | f8c2648 | 2010-02-15 12:13:17 -0800 | [diff] [blame] | 811 | queue_delayed_work(cvm_oct_poll_queue, &cvm_oct_rx_refill_work, HZ); |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 812 | |
| 813 | return 0; |
| 814 | } |
| 815 | |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 816 | static int __devexit cvm_oct_remove(struct platform_device *pdev) |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 817 | { |
| 818 | int port; |
| 819 | |
| 820 | /* Disable POW interrupt */ |
| 821 | cvmx_write_csr(CVMX_POW_WQ_INT_THRX(pow_receive_group), 0); |
| 822 | |
| 823 | cvmx_ipd_disable(); |
| 824 | |
| 825 | /* Free the interrupt handler */ |
| 826 | free_irq(OCTEON_IRQ_WORKQ0 + pow_receive_group, cvm_oct_device); |
| 827 | |
David Daney | f8c2648 | 2010-02-15 12:13:17 -0800 | [diff] [blame] | 828 | atomic_inc_return(&cvm_oct_poll_queue_stopping); |
| 829 | cancel_delayed_work_sync(&cvm_oct_rx_refill_work); |
| 830 | |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 831 | cvm_oct_rx_shutdown(); |
David Daney | 4898c56 | 2010-02-15 15:06:47 -0800 | [diff] [blame] | 832 | cvm_oct_tx_shutdown(); |
| 833 | |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 834 | cvmx_pko_disable(); |
| 835 | |
| 836 | /* Free the ethernet devices */ |
| 837 | for (port = 0; port < TOTAL_NUMBER_OF_PORTS; port++) { |
| 838 | if (cvm_oct_device[port]) { |
David Daney | f8c2648 | 2010-02-15 12:13:17 -0800 | [diff] [blame] | 839 | struct net_device *dev = cvm_oct_device[port]; |
| 840 | struct octeon_ethernet *priv = netdev_priv(dev); |
David Daney | 4898c56 | 2010-02-15 15:06:47 -0800 | [diff] [blame] | 841 | cancel_delayed_work_sync(&priv->port_periodic_work); |
David Daney | f8c2648 | 2010-02-15 12:13:17 -0800 | [diff] [blame] | 842 | |
David Daney | 4898c56 | 2010-02-15 15:06:47 -0800 | [diff] [blame] | 843 | cvm_oct_tx_shutdown_dev(dev); |
David Daney | f8c2648 | 2010-02-15 12:13:17 -0800 | [diff] [blame] | 844 | unregister_netdev(dev); |
Vasiliy Kulikov | c4711c3 | 2010-09-28 21:08:01 +0400 | [diff] [blame] | 845 | free_netdev(dev); |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 846 | cvm_oct_device[port] = NULL; |
| 847 | } |
| 848 | } |
| 849 | |
David Daney | f8c2648 | 2010-02-15 12:13:17 -0800 | [diff] [blame] | 850 | destroy_workqueue(cvm_oct_poll_queue); |
| 851 | |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 852 | cvmx_pko_shutdown(); |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 853 | |
| 854 | cvmx_ipd_free_ptr(); |
| 855 | |
| 856 | /* Free the HW pools */ |
| 857 | cvm_oct_mem_empty_fpa(CVMX_FPA_PACKET_POOL, CVMX_FPA_PACKET_POOL_SIZE, |
| 858 | num_packet_buffers); |
| 859 | cvm_oct_mem_empty_fpa(CVMX_FPA_WQE_POOL, CVMX_FPA_WQE_POOL_SIZE, |
| 860 | num_packet_buffers); |
| 861 | if (CVMX_FPA_OUTPUT_BUFFER_POOL != CVMX_FPA_PACKET_POOL) |
| 862 | cvm_oct_mem_empty_fpa(CVMX_FPA_OUTPUT_BUFFER_POOL, |
| 863 | CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE, 128); |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 864 | return 0; |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 865 | } |
| 866 | |
David Daney | df9244c | 2012-07-05 18:12:40 +0200 | [diff] [blame] | 867 | static struct of_device_id cvm_oct_match[] = { |
| 868 | { |
| 869 | .compatible = "cavium,octeon-3860-pip", |
| 870 | }, |
| 871 | {}, |
| 872 | }; |
| 873 | MODULE_DEVICE_TABLE(of, cvm_oct_match); |
| 874 | |
| 875 | static struct platform_driver cvm_oct_driver = { |
| 876 | .probe = cvm_oct_probe, |
| 877 | .remove = __devexit_p(cvm_oct_remove), |
| 878 | .driver = { |
| 879 | .owner = THIS_MODULE, |
| 880 | .name = KBUILD_MODNAME, |
| 881 | .of_match_table = cvm_oct_match, |
| 882 | }, |
| 883 | }; |
| 884 | |
| 885 | module_platform_driver(cvm_oct_driver); |
| 886 | |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 887 | MODULE_LICENSE("GPL"); |
| 888 | MODULE_AUTHOR("Cavium Networks <support@caviumnetworks.com>"); |
| 889 | MODULE_DESCRIPTION("Cavium Networks Octeon ethernet driver."); |