Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1 | /* bnx2x_cmn.h: Broadcom Everest network driver. |
| 2 | * |
Dmitry Kravkov | 5de9240 | 2011-05-04 23:51:13 +0000 | [diff] [blame^] | 3 | * Copyright (c) 2007-2011 Broadcom Corporation |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation. |
| 8 | * |
| 9 | * Maintained by: Eilon Greenstein <eilong@broadcom.com> |
| 10 | * Written by: Eliezer Tamir |
| 11 | * Based on code from Michael Chan's bnx2 driver |
| 12 | * UDP CSUM errata workaround by Arik Gendelman |
| 13 | * Slowpath and fastpath rework by Vladislav Zolotarov |
| 14 | * Statistics and Link management by Yitchak Gertner |
| 15 | * |
| 16 | */ |
| 17 | #ifndef BNX2X_CMN_H |
| 18 | #define BNX2X_CMN_H |
| 19 | |
| 20 | #include <linux/types.h> |
| 21 | #include <linux/netdevice.h> |
| 22 | |
| 23 | |
| 24 | #include "bnx2x.h" |
| 25 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 26 | extern int num_queues; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 27 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 28 | /************************ Macros ********************************/ |
| 29 | #define BNX2X_PCI_FREE(x, y, size) \ |
| 30 | do { \ |
| 31 | if (x) { \ |
| 32 | dma_free_coherent(&bp->pdev->dev, size, (void *)x, y); \ |
| 33 | x = NULL; \ |
| 34 | y = 0; \ |
| 35 | } \ |
| 36 | } while (0) |
| 37 | |
| 38 | #define BNX2X_FREE(x) \ |
| 39 | do { \ |
| 40 | if (x) { \ |
| 41 | kfree((void *)x); \ |
| 42 | x = NULL; \ |
| 43 | } \ |
| 44 | } while (0) |
| 45 | |
| 46 | #define BNX2X_PCI_ALLOC(x, y, size) \ |
| 47 | do { \ |
| 48 | x = dma_alloc_coherent(&bp->pdev->dev, size, y, GFP_KERNEL); \ |
| 49 | if (x == NULL) \ |
| 50 | goto alloc_mem_err; \ |
| 51 | memset((void *)x, 0, size); \ |
| 52 | } while (0) |
| 53 | |
| 54 | #define BNX2X_ALLOC(x, size) \ |
| 55 | do { \ |
| 56 | x = kzalloc(size, GFP_KERNEL); \ |
| 57 | if (x == NULL) \ |
| 58 | goto alloc_mem_err; \ |
| 59 | } while (0) |
| 60 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 61 | /*********************** Interfaces **************************** |
| 62 | * Functions that need to be implemented by each driver version |
| 63 | */ |
| 64 | |
| 65 | /** |
| 66 | * Initialize link parameters structure variables. |
| 67 | * |
| 68 | * @param bp |
| 69 | * @param load_mode |
| 70 | * |
| 71 | * @return u8 |
| 72 | */ |
| 73 | u8 bnx2x_initial_phy_init(struct bnx2x *bp, int load_mode); |
| 74 | |
| 75 | /** |
| 76 | * Configure hw according to link parameters structure. |
| 77 | * |
| 78 | * @param bp |
| 79 | */ |
| 80 | void bnx2x_link_set(struct bnx2x *bp); |
| 81 | |
| 82 | /** |
| 83 | * Query link status |
| 84 | * |
| 85 | * @param bp |
Yaniv Rosner | a22f078 | 2010-09-07 11:41:20 +0000 | [diff] [blame] | 86 | * @param is_serdes |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 87 | * |
| 88 | * @return 0 - link is UP |
| 89 | */ |
Yaniv Rosner | a22f078 | 2010-09-07 11:41:20 +0000 | [diff] [blame] | 90 | u8 bnx2x_link_test(struct bnx2x *bp, u8 is_serdes); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 91 | |
| 92 | /** |
| 93 | * Handles link status change |
| 94 | * |
| 95 | * @param bp |
| 96 | */ |
| 97 | void bnx2x__link_status_update(struct bnx2x *bp); |
| 98 | |
| 99 | /** |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 100 | * Report link status to upper layer |
| 101 | * |
| 102 | * @param bp |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 103 | */ |
| 104 | void bnx2x_link_report(struct bnx2x *bp); |
| 105 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 106 | /* None-atomic version of bnx2x_link_report() */ |
| 107 | void __bnx2x_link_report(struct bnx2x *bp); |
| 108 | |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 109 | /** |
Dmitry Kravkov | 0793f83f | 2010-12-01 12:39:28 -0800 | [diff] [blame] | 110 | * calculates MF speed according to current linespeed and MF |
| 111 | * configuration |
| 112 | * |
| 113 | * @param bp |
| 114 | * |
| 115 | * @return u16 |
| 116 | */ |
| 117 | u16 bnx2x_get_mf_speed(struct bnx2x *bp); |
| 118 | |
| 119 | /** |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 120 | * MSI-X slowpath interrupt handler |
| 121 | * |
| 122 | * @param irq |
| 123 | * @param dev_instance |
| 124 | * |
| 125 | * @return irqreturn_t |
| 126 | */ |
| 127 | irqreturn_t bnx2x_msix_sp_int(int irq, void *dev_instance); |
| 128 | |
| 129 | /** |
| 130 | * non MSI-X interrupt handler |
| 131 | * |
| 132 | * @param irq |
| 133 | * @param dev_instance |
| 134 | * |
| 135 | * @return irqreturn_t |
| 136 | */ |
| 137 | irqreturn_t bnx2x_interrupt(int irq, void *dev_instance); |
| 138 | #ifdef BCM_CNIC |
| 139 | |
| 140 | /** |
| 141 | * Send command to cnic driver |
| 142 | * |
| 143 | * @param bp |
| 144 | * @param cmd |
| 145 | */ |
| 146 | int bnx2x_cnic_notify(struct bnx2x *bp, int cmd); |
| 147 | |
| 148 | /** |
| 149 | * Provides cnic information for proper interrupt handling |
| 150 | * |
| 151 | * @param bp |
| 152 | */ |
| 153 | void bnx2x_setup_cnic_irq_info(struct bnx2x *bp); |
| 154 | #endif |
| 155 | |
| 156 | /** |
| 157 | * Enable HW interrupts. |
| 158 | * |
| 159 | * @param bp |
| 160 | */ |
| 161 | void bnx2x_int_enable(struct bnx2x *bp); |
| 162 | |
| 163 | /** |
| 164 | * Disable interrupts. This function ensures that there are no |
| 165 | * ISRs or SP DPCs (sp_task) are running after it returns. |
| 166 | * |
| 167 | * @param bp |
| 168 | * @param disable_hw if true, disable HW interrupts. |
| 169 | */ |
| 170 | void bnx2x_int_disable_sync(struct bnx2x *bp, int disable_hw); |
| 171 | |
| 172 | /** |
Dmitry Kravkov | 6891dd2 | 2010-08-03 21:49:40 +0000 | [diff] [blame] | 173 | * Loads device firmware |
| 174 | * |
| 175 | * @param bp |
| 176 | * |
| 177 | * @return int |
| 178 | */ |
| 179 | int bnx2x_init_firmware(struct bnx2x *bp); |
| 180 | |
| 181 | /** |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 182 | * Init HW blocks according to current initialization stage: |
| 183 | * COMMON, PORT or FUNCTION. |
| 184 | * |
| 185 | * @param bp |
| 186 | * @param load_code: COMMON, PORT or FUNCTION |
| 187 | * |
| 188 | * @return int |
| 189 | */ |
| 190 | int bnx2x_init_hw(struct bnx2x *bp, u32 load_code); |
| 191 | |
| 192 | /** |
| 193 | * Init driver internals: |
| 194 | * - rings |
| 195 | * - status blocks |
| 196 | * - etc. |
| 197 | * |
| 198 | * @param bp |
| 199 | * @param load_code COMMON, PORT or FUNCTION |
| 200 | */ |
| 201 | void bnx2x_nic_init(struct bnx2x *bp, u32 load_code); |
| 202 | |
| 203 | /** |
| 204 | * Allocate driver's memory. |
| 205 | * |
| 206 | * @param bp |
| 207 | * |
| 208 | * @return int |
| 209 | */ |
| 210 | int bnx2x_alloc_mem(struct bnx2x *bp); |
| 211 | |
| 212 | /** |
| 213 | * Release driver's memory. |
| 214 | * |
| 215 | * @param bp |
| 216 | */ |
| 217 | void bnx2x_free_mem(struct bnx2x *bp); |
| 218 | |
| 219 | /** |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 220 | * Setup eth Client. |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 221 | * |
| 222 | * @param bp |
| 223 | * @param fp |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 224 | * @param is_leading |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 225 | * |
| 226 | * @return int |
| 227 | */ |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 228 | int bnx2x_setup_client(struct bnx2x *bp, struct bnx2x_fastpath *fp, |
| 229 | int is_leading); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 230 | |
| 231 | /** |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 232 | * Set number of queues according to mode |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 233 | * |
| 234 | * @param bp |
| 235 | * |
| 236 | */ |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 237 | void bnx2x_set_num_queues(struct bnx2x *bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 238 | |
| 239 | /** |
| 240 | * Cleanup chip internals: |
| 241 | * - Cleanup MAC configuration. |
| 242 | * - Close clients. |
| 243 | * - etc. |
| 244 | * |
| 245 | * @param bp |
| 246 | * @param unload_mode |
| 247 | */ |
| 248 | void bnx2x_chip_cleanup(struct bnx2x *bp, int unload_mode); |
| 249 | |
| 250 | /** |
| 251 | * Acquire HW lock. |
| 252 | * |
| 253 | * @param bp |
| 254 | * @param resource Resource bit which was locked |
| 255 | * |
| 256 | * @return int |
| 257 | */ |
| 258 | int bnx2x_acquire_hw_lock(struct bnx2x *bp, u32 resource); |
| 259 | |
| 260 | /** |
| 261 | * Release HW lock. |
| 262 | * |
| 263 | * @param bp driver handle |
| 264 | * @param resource Resource bit which was locked |
| 265 | * |
| 266 | * @return int |
| 267 | */ |
| 268 | int bnx2x_release_hw_lock(struct bnx2x *bp, u32 resource); |
| 269 | |
| 270 | /** |
| 271 | * Configure eth MAC address in the HW according to the value in |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 272 | * netdev->dev_addr. |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 273 | * |
| 274 | * @param bp driver handle |
| 275 | * @param set |
| 276 | */ |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 277 | void bnx2x_set_eth_mac(struct bnx2x *bp, int set); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 278 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 279 | #ifdef BCM_CNIC |
| 280 | /** |
| 281 | * Set/Clear FIP MAC(s) at the next enties in the CAM after the ETH |
| 282 | * MAC(s). This function will wait until the ramdord completion |
| 283 | * returns. |
| 284 | * |
| 285 | * @param bp driver handle |
| 286 | * @param set set or clear the CAM entry |
| 287 | * |
| 288 | * @return 0 if cussess, -ENODEV if ramrod doesn't return. |
| 289 | */ |
| 290 | int bnx2x_set_fip_eth_mac_addr(struct bnx2x *bp, int set); |
| 291 | |
| 292 | /** |
| 293 | * Set/Clear ALL_ENODE mcast MAC. |
| 294 | * |
| 295 | * @param bp |
| 296 | * @param set |
| 297 | * |
| 298 | * @return int |
| 299 | */ |
| 300 | int bnx2x_set_all_enode_macs(struct bnx2x *bp, int set); |
| 301 | #endif |
| 302 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 303 | /** |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 304 | * Set MAC filtering configurations. |
| 305 | * |
| 306 | * @remarks called with netif_tx_lock from dev_mcast.c |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 307 | * |
| 308 | * @param dev net_device |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 309 | */ |
| 310 | void bnx2x_set_rx_mode(struct net_device *dev); |
| 311 | |
| 312 | /** |
| 313 | * Configure MAC filtering rules in a FW. |
| 314 | * |
| 315 | * @param bp driver handle |
| 316 | */ |
| 317 | void bnx2x_set_storm_rx_mode(struct bnx2x *bp); |
| 318 | |
| 319 | /* Parity errors related */ |
| 320 | void bnx2x_inc_load_cnt(struct bnx2x *bp); |
| 321 | u32 bnx2x_dec_load_cnt(struct bnx2x *bp); |
| 322 | bool bnx2x_chk_parity_attn(struct bnx2x *bp); |
| 323 | bool bnx2x_reset_is_done(struct bnx2x *bp); |
| 324 | void bnx2x_disable_close_the_gate(struct bnx2x *bp); |
| 325 | |
| 326 | /** |
| 327 | * Perform statistics handling according to event |
| 328 | * |
| 329 | * @param bp driver handle |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 330 | * @param event bnx2x_stats_event |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 331 | */ |
| 332 | void bnx2x_stats_handle(struct bnx2x *bp, enum bnx2x_stats_event event); |
| 333 | |
| 334 | /** |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 335 | * Handle ramrods completion |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 336 | * |
| 337 | * @param fp fastpath handle for the event |
| 338 | * @param rr_cqe eth_rx_cqe |
| 339 | */ |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 340 | void bnx2x_sp_event(struct bnx2x_fastpath *fp, union eth_rx_cqe *rr_cqe); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 341 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 342 | /** |
| 343 | * Init/halt function before/after sending |
| 344 | * CLIENT_SETUP/CFC_DEL for the first/last client. |
| 345 | * |
| 346 | * @param bp |
| 347 | * |
| 348 | * @return int |
| 349 | */ |
| 350 | int bnx2x_func_start(struct bnx2x *bp); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 351 | |
| 352 | /** |
| 353 | * Prepare ILT configurations according to current driver |
| 354 | * parameters. |
| 355 | * |
| 356 | * @param bp |
| 357 | */ |
| 358 | void bnx2x_ilt_set_info(struct bnx2x *bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 359 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 360 | /** |
Vladislav Zolotarov | e4901dd | 2010-12-13 05:44:18 +0000 | [diff] [blame] | 361 | * Inintialize dcbx protocol |
| 362 | * |
| 363 | * @param bp |
| 364 | */ |
| 365 | void bnx2x_dcbx_init(struct bnx2x *bp); |
| 366 | |
| 367 | /** |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 368 | * Set power state to the requested value. Currently only D0 and |
| 369 | * D3hot are supported. |
| 370 | * |
| 371 | * @param bp |
| 372 | * @param state D0 or D3hot |
| 373 | * |
| 374 | * @return int |
| 375 | */ |
| 376 | int bnx2x_set_power_state(struct bnx2x *bp, pci_power_t state); |
| 377 | |
Dmitry Kravkov | e3835b9 | 2011-03-06 10:50:44 +0000 | [diff] [blame] | 378 | /** |
| 379 | * Updates MAX part of MF configuration in HW |
| 380 | * (if required) |
| 381 | * |
| 382 | * @param bp |
| 383 | * @param value |
| 384 | */ |
| 385 | void bnx2x_update_max_mf_config(struct bnx2x *bp, u32 value); |
| 386 | |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 387 | /* dev_close main block */ |
| 388 | int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode); |
| 389 | |
| 390 | /* dev_open main block */ |
| 391 | int bnx2x_nic_load(struct bnx2x *bp, int load_mode); |
| 392 | |
| 393 | /* hard_xmit callback */ |
| 394 | netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev); |
| 395 | |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 396 | /* select_queue callback */ |
| 397 | u16 bnx2x_select_queue(struct net_device *dev, struct sk_buff *skb); |
| 398 | |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 399 | int bnx2x_change_mac_addr(struct net_device *dev, void *p); |
| 400 | |
| 401 | /* NAPI poll Rx part */ |
| 402 | int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget); |
| 403 | |
| 404 | /* NAPI poll Tx part */ |
| 405 | int bnx2x_tx_int(struct bnx2x_fastpath *fp); |
| 406 | |
| 407 | /* suspend/resume callbacks */ |
| 408 | int bnx2x_suspend(struct pci_dev *pdev, pm_message_t state); |
| 409 | int bnx2x_resume(struct pci_dev *pdev); |
| 410 | |
| 411 | /* Release IRQ vectors */ |
| 412 | void bnx2x_free_irq(struct bnx2x *bp); |
| 413 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 414 | void bnx2x_free_fp_mem(struct bnx2x *bp); |
| 415 | int bnx2x_alloc_fp_mem(struct bnx2x *bp); |
| 416 | |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 417 | void bnx2x_init_rx_rings(struct bnx2x *bp); |
| 418 | void bnx2x_free_skbs(struct bnx2x *bp); |
| 419 | void bnx2x_netif_stop(struct bnx2x *bp, int disable_hw); |
| 420 | void bnx2x_netif_start(struct bnx2x *bp); |
| 421 | |
| 422 | /** |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 423 | * Fill msix_table, request vectors, update num_queues according |
| 424 | * to number of available vectors |
| 425 | * |
| 426 | * @param bp |
| 427 | * |
| 428 | * @return int |
| 429 | */ |
| 430 | int bnx2x_enable_msix(struct bnx2x *bp); |
| 431 | |
| 432 | /** |
| 433 | * Request msi mode from OS, updated internals accordingly |
| 434 | * |
| 435 | * @param bp |
| 436 | * |
| 437 | * @return int |
| 438 | */ |
| 439 | int bnx2x_enable_msi(struct bnx2x *bp); |
| 440 | |
| 441 | /** |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 442 | * NAPI callback |
| 443 | * |
| 444 | * @param napi |
| 445 | * @param budget |
| 446 | * |
| 447 | * @return int |
| 448 | */ |
| 449 | int bnx2x_poll(struct napi_struct *napi, int budget); |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 450 | |
| 451 | /** |
| 452 | * Allocate/release memories outsize main driver structure |
| 453 | * |
| 454 | * @param bp |
| 455 | * |
| 456 | * @return int |
| 457 | */ |
| 458 | int __devinit bnx2x_alloc_mem_bp(struct bnx2x *bp); |
| 459 | void bnx2x_free_mem_bp(struct bnx2x *bp); |
| 460 | |
| 461 | /** |
| 462 | * Change mtu netdev callback |
| 463 | * |
| 464 | * @param dev |
| 465 | * @param new_mtu |
| 466 | * |
| 467 | * @return int |
| 468 | */ |
| 469 | int bnx2x_change_mtu(struct net_device *dev, int new_mtu); |
| 470 | |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 471 | u32 bnx2x_fix_features(struct net_device *dev, u32 features); |
| 472 | int bnx2x_set_features(struct net_device *dev, u32 features); |
| 473 | |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 474 | /** |
| 475 | * tx timeout netdev callback |
| 476 | * |
| 477 | * @param dev |
| 478 | * @param new_mtu |
| 479 | * |
| 480 | * @return int |
| 481 | */ |
| 482 | void bnx2x_tx_timeout(struct net_device *dev); |
| 483 | |
| 484 | #ifdef BCM_VLAN |
| 485 | /** |
| 486 | * vlan rx register netdev callback |
| 487 | * |
| 488 | * @param dev |
| 489 | * @param new_mtu |
| 490 | * |
| 491 | * @return int |
| 492 | */ |
| 493 | void bnx2x_vlan_rx_register(struct net_device *dev, |
| 494 | struct vlan_group *vlgrp); |
| 495 | |
| 496 | #endif |
| 497 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 498 | static inline void bnx2x_update_fpsb_idx(struct bnx2x_fastpath *fp) |
| 499 | { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 500 | barrier(); /* status block is written to by the chip */ |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 501 | fp->fp_hc_idx = fp->sb_running_index[SM_RX_ID]; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 502 | } |
| 503 | |
| 504 | static inline void bnx2x_update_rx_prod(struct bnx2x *bp, |
| 505 | struct bnx2x_fastpath *fp, |
| 506 | u16 bd_prod, u16 rx_comp_prod, |
| 507 | u16 rx_sge_prod) |
| 508 | { |
| 509 | struct ustorm_eth_rx_producers rx_prods = {0}; |
| 510 | int i; |
| 511 | |
| 512 | /* Update producers */ |
| 513 | rx_prods.bd_prod = bd_prod; |
| 514 | rx_prods.cqe_prod = rx_comp_prod; |
| 515 | rx_prods.sge_prod = rx_sge_prod; |
| 516 | |
| 517 | /* |
| 518 | * Make sure that the BD and SGE data is updated before updating the |
| 519 | * producers since FW might read the BD/SGE right after the producer |
| 520 | * is updated. |
| 521 | * This is only applicable for weak-ordered memory model archs such |
| 522 | * as IA-64. The following barrier is also mandatory since FW will |
| 523 | * assumes BDs must have buffers. |
| 524 | */ |
| 525 | wmb(); |
| 526 | |
| 527 | for (i = 0; i < sizeof(struct ustorm_eth_rx_producers)/4; i++) |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 528 | REG_WR(bp, |
| 529 | BAR_USTRORM_INTMEM + fp->ustorm_rx_prods_offset + i*4, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 530 | ((u32 *)&rx_prods)[i]); |
| 531 | |
| 532 | mmiowb(); /* keep prod updates ordered */ |
| 533 | |
| 534 | DP(NETIF_MSG_RX_STATUS, |
| 535 | "queue[%d]: wrote bd_prod %u cqe_prod %u sge_prod %u\n", |
| 536 | fp->index, bd_prod, rx_comp_prod, rx_sge_prod); |
| 537 | } |
| 538 | |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 539 | static inline void bnx2x_igu_ack_sb_gen(struct bnx2x *bp, u8 igu_sb_id, |
| 540 | u8 segment, u16 index, u8 op, |
| 541 | u8 update, u32 igu_addr) |
| 542 | { |
| 543 | struct igu_regular cmd_data = {0}; |
| 544 | |
| 545 | cmd_data.sb_id_and_flags = |
| 546 | ((index << IGU_REGULAR_SB_INDEX_SHIFT) | |
| 547 | (segment << IGU_REGULAR_SEGMENT_ACCESS_SHIFT) | |
| 548 | (update << IGU_REGULAR_BUPDATE_SHIFT) | |
| 549 | (op << IGU_REGULAR_ENABLE_INT_SHIFT)); |
| 550 | |
| 551 | DP(NETIF_MSG_HW, "write 0x%08x to IGU addr 0x%x\n", |
| 552 | cmd_data.sb_id_and_flags, igu_addr); |
| 553 | REG_WR(bp, igu_addr, cmd_data.sb_id_and_flags); |
| 554 | |
| 555 | /* Make sure that ACK is written */ |
| 556 | mmiowb(); |
| 557 | barrier(); |
| 558 | } |
| 559 | |
| 560 | static inline void bnx2x_igu_clear_sb_gen(struct bnx2x *bp, |
| 561 | u8 idu_sb_id, bool is_Pf) |
| 562 | { |
| 563 | u32 data, ctl, cnt = 100; |
| 564 | u32 igu_addr_data = IGU_REG_COMMAND_REG_32LSB_DATA; |
| 565 | u32 igu_addr_ctl = IGU_REG_COMMAND_REG_CTRL; |
| 566 | u32 igu_addr_ack = IGU_REG_CSTORM_TYPE_0_SB_CLEANUP + (idu_sb_id/32)*4; |
| 567 | u32 sb_bit = 1 << (idu_sb_id%32); |
| 568 | u32 func_encode = BP_FUNC(bp) | |
| 569 | ((is_Pf == true ? 1 : 0) << IGU_FID_ENCODE_IS_PF_SHIFT); |
| 570 | u32 addr_encode = IGU_CMD_E2_PROD_UPD_BASE + idu_sb_id; |
| 571 | |
| 572 | /* Not supported in BC mode */ |
| 573 | if (CHIP_INT_MODE_IS_BC(bp)) |
| 574 | return; |
| 575 | |
| 576 | data = (IGU_USE_REGISTER_cstorm_type_0_sb_cleanup |
| 577 | << IGU_REGULAR_CLEANUP_TYPE_SHIFT) | |
| 578 | IGU_REGULAR_CLEANUP_SET | |
| 579 | IGU_REGULAR_BCLEANUP; |
| 580 | |
| 581 | ctl = addr_encode << IGU_CTRL_REG_ADDRESS_SHIFT | |
| 582 | func_encode << IGU_CTRL_REG_FID_SHIFT | |
| 583 | IGU_CTRL_CMD_TYPE_WR << IGU_CTRL_REG_TYPE_SHIFT; |
| 584 | |
| 585 | DP(NETIF_MSG_HW, "write 0x%08x to IGU(via GRC) addr 0x%x\n", |
| 586 | data, igu_addr_data); |
| 587 | REG_WR(bp, igu_addr_data, data); |
| 588 | mmiowb(); |
| 589 | barrier(); |
| 590 | DP(NETIF_MSG_HW, "write 0x%08x to IGU(via GRC) addr 0x%x\n", |
| 591 | ctl, igu_addr_ctl); |
| 592 | REG_WR(bp, igu_addr_ctl, ctl); |
| 593 | mmiowb(); |
| 594 | barrier(); |
| 595 | |
| 596 | /* wait for clean up to finish */ |
| 597 | while (!(REG_RD(bp, igu_addr_ack) & sb_bit) && --cnt) |
| 598 | msleep(20); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 599 | |
| 600 | |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 601 | if (!(REG_RD(bp, igu_addr_ack) & sb_bit)) { |
| 602 | DP(NETIF_MSG_HW, "Unable to finish IGU cleanup: " |
| 603 | "idu_sb_id %d offset %d bit %d (cnt %d)\n", |
| 604 | idu_sb_id, idu_sb_id/32, idu_sb_id%32, cnt); |
| 605 | } |
| 606 | } |
| 607 | |
| 608 | static inline void bnx2x_hc_ack_sb(struct bnx2x *bp, u8 sb_id, |
| 609 | u8 storm, u16 index, u8 op, u8 update) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 610 | { |
| 611 | u32 hc_addr = (HC_REG_COMMAND_REG + BP_PORT(bp)*32 + |
| 612 | COMMAND_REG_INT_ACK); |
| 613 | struct igu_ack_register igu_ack; |
| 614 | |
| 615 | igu_ack.status_block_index = index; |
| 616 | igu_ack.sb_id_and_flags = |
| 617 | ((sb_id << IGU_ACK_REGISTER_STATUS_BLOCK_ID_SHIFT) | |
| 618 | (storm << IGU_ACK_REGISTER_STORM_ID_SHIFT) | |
| 619 | (update << IGU_ACK_REGISTER_UPDATE_INDEX_SHIFT) | |
| 620 | (op << IGU_ACK_REGISTER_INTERRUPT_MODE_SHIFT)); |
| 621 | |
| 622 | DP(BNX2X_MSG_OFF, "write 0x%08x to HC addr 0x%x\n", |
| 623 | (*(u32 *)&igu_ack), hc_addr); |
| 624 | REG_WR(bp, hc_addr, (*(u32 *)&igu_ack)); |
| 625 | |
| 626 | /* Make sure that ACK is written */ |
| 627 | mmiowb(); |
| 628 | barrier(); |
| 629 | } |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 630 | |
| 631 | static inline void bnx2x_igu_ack_sb(struct bnx2x *bp, u8 igu_sb_id, u8 segment, |
| 632 | u16 index, u8 op, u8 update) |
| 633 | { |
| 634 | u32 igu_addr = BAR_IGU_INTMEM + (IGU_CMD_INT_ACK_BASE + igu_sb_id)*8; |
| 635 | |
| 636 | bnx2x_igu_ack_sb_gen(bp, igu_sb_id, segment, index, op, update, |
| 637 | igu_addr); |
| 638 | } |
| 639 | |
| 640 | static inline void bnx2x_ack_sb(struct bnx2x *bp, u8 igu_sb_id, u8 storm, |
| 641 | u16 index, u8 op, u8 update) |
| 642 | { |
| 643 | if (bp->common.int_block == INT_BLOCK_HC) |
| 644 | bnx2x_hc_ack_sb(bp, igu_sb_id, storm, index, op, update); |
| 645 | else { |
| 646 | u8 segment; |
| 647 | |
| 648 | if (CHIP_INT_MODE_IS_BC(bp)) |
| 649 | segment = storm; |
| 650 | else if (igu_sb_id != bp->igu_dsb_id) |
| 651 | segment = IGU_SEG_ACCESS_DEF; |
| 652 | else if (storm == ATTENTION_ID) |
| 653 | segment = IGU_SEG_ACCESS_ATTN; |
| 654 | else |
| 655 | segment = IGU_SEG_ACCESS_DEF; |
| 656 | bnx2x_igu_ack_sb(bp, igu_sb_id, segment, index, op, update); |
| 657 | } |
| 658 | } |
| 659 | |
| 660 | static inline u16 bnx2x_hc_ack_int(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 661 | { |
| 662 | u32 hc_addr = (HC_REG_COMMAND_REG + BP_PORT(bp)*32 + |
| 663 | COMMAND_REG_SIMD_MASK); |
| 664 | u32 result = REG_RD(bp, hc_addr); |
| 665 | |
| 666 | DP(BNX2X_MSG_OFF, "read 0x%08x from HC addr 0x%x\n", |
| 667 | result, hc_addr); |
| 668 | |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 669 | barrier(); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 670 | return result; |
| 671 | } |
| 672 | |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 673 | static inline u16 bnx2x_igu_ack_int(struct bnx2x *bp) |
| 674 | { |
| 675 | u32 igu_addr = (BAR_IGU_INTMEM + IGU_REG_SISR_MDPC_WMASK_LSB_UPPER*8); |
| 676 | u32 result = REG_RD(bp, igu_addr); |
| 677 | |
| 678 | DP(NETIF_MSG_HW, "read 0x%08x from IGU addr 0x%x\n", |
| 679 | result, igu_addr); |
| 680 | |
| 681 | barrier(); |
| 682 | return result; |
| 683 | } |
| 684 | |
| 685 | static inline u16 bnx2x_ack_int(struct bnx2x *bp) |
| 686 | { |
| 687 | barrier(); |
| 688 | if (bp->common.int_block == INT_BLOCK_HC) |
| 689 | return bnx2x_hc_ack_int(bp); |
| 690 | else |
| 691 | return bnx2x_igu_ack_int(bp); |
| 692 | } |
| 693 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 694 | static inline int bnx2x_has_tx_work_unload(struct bnx2x_fastpath *fp) |
| 695 | { |
| 696 | /* Tell compiler that consumer and producer can change */ |
| 697 | barrier(); |
Eric Dumazet | 807540b | 2010-09-23 05:40:09 +0000 | [diff] [blame] | 698 | return fp->tx_pkt_prod != fp->tx_pkt_cons; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 699 | } |
| 700 | |
| 701 | static inline u16 bnx2x_tx_avail(struct bnx2x_fastpath *fp) |
| 702 | { |
| 703 | s16 used; |
| 704 | u16 prod; |
| 705 | u16 cons; |
| 706 | |
| 707 | prod = fp->tx_bd_prod; |
| 708 | cons = fp->tx_bd_cons; |
| 709 | |
| 710 | /* NUM_TX_RINGS = number of "next-page" entries |
| 711 | It will be used as a threshold */ |
| 712 | used = SUB_S16(prod, cons) + (s16)NUM_TX_RINGS; |
| 713 | |
| 714 | #ifdef BNX2X_STOP_ON_ERROR |
| 715 | WARN_ON(used < 0); |
| 716 | WARN_ON(used > fp->bp->tx_ring_size); |
| 717 | WARN_ON((fp->bp->tx_ring_size - used) > MAX_TX_AVAIL); |
| 718 | #endif |
| 719 | |
| 720 | return (s16)(fp->bp->tx_ring_size) - used; |
| 721 | } |
| 722 | |
| 723 | static inline int bnx2x_has_tx_work(struct bnx2x_fastpath *fp) |
| 724 | { |
| 725 | u16 hw_cons; |
| 726 | |
| 727 | /* Tell compiler that status block fields can change */ |
| 728 | barrier(); |
| 729 | hw_cons = le16_to_cpu(*fp->tx_cons_sb); |
| 730 | return hw_cons != fp->tx_pkt_cons; |
| 731 | } |
| 732 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 733 | static inline int bnx2x_has_rx_work(struct bnx2x_fastpath *fp) |
| 734 | { |
| 735 | u16 rx_cons_sb; |
| 736 | |
| 737 | /* Tell compiler that status block fields can change */ |
| 738 | barrier(); |
| 739 | rx_cons_sb = le16_to_cpu(*fp->rx_cons_sb); |
| 740 | if ((rx_cons_sb & MAX_RCQ_DESC_CNT) == MAX_RCQ_DESC_CNT) |
| 741 | rx_cons_sb++; |
| 742 | return (fp->rx_comp_cons != rx_cons_sb); |
| 743 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 744 | |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 745 | /** |
| 746 | * disables tx from stack point of view |
| 747 | * |
| 748 | * @param bp |
| 749 | */ |
| 750 | static inline void bnx2x_tx_disable(struct bnx2x *bp) |
| 751 | { |
| 752 | netif_tx_disable(bp->dev); |
| 753 | netif_carrier_off(bp->dev); |
| 754 | } |
| 755 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 756 | static inline void bnx2x_free_rx_sge(struct bnx2x *bp, |
| 757 | struct bnx2x_fastpath *fp, u16 index) |
| 758 | { |
| 759 | struct sw_rx_page *sw_buf = &fp->rx_page_ring[index]; |
| 760 | struct page *page = sw_buf->page; |
| 761 | struct eth_rx_sge *sge = &fp->rx_sge_ring[index]; |
| 762 | |
| 763 | /* Skip "next page" elements */ |
| 764 | if (!page) |
| 765 | return; |
| 766 | |
| 767 | dma_unmap_page(&bp->pdev->dev, dma_unmap_addr(sw_buf, mapping), |
Dmitry Kravkov | 4bca60f | 2010-10-06 03:30:27 +0000 | [diff] [blame] | 768 | SGE_PAGE_SIZE*PAGES_PER_SGE, DMA_FROM_DEVICE); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 769 | __free_pages(page, PAGES_PER_SGE_SHIFT); |
| 770 | |
| 771 | sw_buf->page = NULL; |
| 772 | sge->addr_hi = 0; |
| 773 | sge->addr_lo = 0; |
| 774 | } |
| 775 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 776 | static inline void bnx2x_add_all_napi(struct bnx2x *bp) |
| 777 | { |
| 778 | int i; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 779 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 780 | /* Add NAPI objects */ |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 781 | for_each_napi_queue(bp, i) |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 782 | netif_napi_add(bp->dev, &bnx2x_fp(bp, i, napi), |
| 783 | bnx2x_poll, BNX2X_NAPI_WEIGHT); |
| 784 | } |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 785 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 786 | static inline void bnx2x_del_all_napi(struct bnx2x *bp) |
| 787 | { |
| 788 | int i; |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 789 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 790 | for_each_napi_queue(bp, i) |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 791 | netif_napi_del(&bnx2x_fp(bp, i, napi)); |
| 792 | } |
| 793 | |
| 794 | static inline void bnx2x_disable_msi(struct bnx2x *bp) |
| 795 | { |
| 796 | if (bp->flags & USING_MSIX_FLAG) { |
| 797 | pci_disable_msix(bp->pdev); |
| 798 | bp->flags &= ~USING_MSIX_FLAG; |
| 799 | } else if (bp->flags & USING_MSI_FLAG) { |
| 800 | pci_disable_msi(bp->pdev); |
| 801 | bp->flags &= ~USING_MSI_FLAG; |
| 802 | } |
| 803 | } |
| 804 | |
| 805 | static inline int bnx2x_calc_num_queues(struct bnx2x *bp) |
| 806 | { |
| 807 | return num_queues ? |
| 808 | min_t(int, num_queues, BNX2X_MAX_QUEUES(bp)) : |
| 809 | min_t(int, num_online_cpus(), BNX2X_MAX_QUEUES(bp)); |
| 810 | } |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 811 | |
| 812 | static inline void bnx2x_clear_sge_mask_next_elems(struct bnx2x_fastpath *fp) |
| 813 | { |
| 814 | int i, j; |
| 815 | |
| 816 | for (i = 1; i <= NUM_RX_SGE_PAGES; i++) { |
| 817 | int idx = RX_SGE_CNT * i - 1; |
| 818 | |
| 819 | for (j = 0; j < 2; j++) { |
| 820 | SGE_MASK_CLEAR_BIT(fp, idx); |
| 821 | idx--; |
| 822 | } |
| 823 | } |
| 824 | } |
| 825 | |
| 826 | static inline void bnx2x_init_sge_ring_bit_mask(struct bnx2x_fastpath *fp) |
| 827 | { |
| 828 | /* Set the mask to all 1-s: it's faster to compare to 0 than to 0xf-s */ |
| 829 | memset(fp->sge_mask, 0xff, |
| 830 | (NUM_RX_SGE >> RX_SGE_MASK_ELEM_SHIFT)*sizeof(u64)); |
| 831 | |
| 832 | /* Clear the two last indices in the page to 1: |
| 833 | these are the indices that correspond to the "next" element, |
| 834 | hence will never be indicated and should be removed from |
| 835 | the calculations. */ |
| 836 | bnx2x_clear_sge_mask_next_elems(fp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 837 | } |
| 838 | |
| 839 | static inline int bnx2x_alloc_rx_sge(struct bnx2x *bp, |
| 840 | struct bnx2x_fastpath *fp, u16 index) |
| 841 | { |
| 842 | struct page *page = alloc_pages(GFP_ATOMIC, PAGES_PER_SGE_SHIFT); |
| 843 | struct sw_rx_page *sw_buf = &fp->rx_page_ring[index]; |
| 844 | struct eth_rx_sge *sge = &fp->rx_sge_ring[index]; |
| 845 | dma_addr_t mapping; |
| 846 | |
| 847 | if (unlikely(page == NULL)) |
| 848 | return -ENOMEM; |
| 849 | |
| 850 | mapping = dma_map_page(&bp->pdev->dev, page, 0, |
| 851 | SGE_PAGE_SIZE*PAGES_PER_SGE, DMA_FROM_DEVICE); |
| 852 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
| 853 | __free_pages(page, PAGES_PER_SGE_SHIFT); |
| 854 | return -ENOMEM; |
| 855 | } |
| 856 | |
| 857 | sw_buf->page = page; |
| 858 | dma_unmap_addr_set(sw_buf, mapping, mapping); |
| 859 | |
| 860 | sge->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 861 | sge->addr_lo = cpu_to_le32(U64_LO(mapping)); |
| 862 | |
| 863 | return 0; |
| 864 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 865 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 866 | static inline int bnx2x_alloc_rx_skb(struct bnx2x *bp, |
| 867 | struct bnx2x_fastpath *fp, u16 index) |
| 868 | { |
| 869 | struct sk_buff *skb; |
| 870 | struct sw_rx_bd *rx_buf = &fp->rx_buf_ring[index]; |
| 871 | struct eth_rx_bd *rx_bd = &fp->rx_desc_ring[index]; |
| 872 | dma_addr_t mapping; |
| 873 | |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 874 | skb = netdev_alloc_skb(bp->dev, fp->rx_buf_size); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 875 | if (unlikely(skb == NULL)) |
| 876 | return -ENOMEM; |
| 877 | |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 878 | mapping = dma_map_single(&bp->pdev->dev, skb->data, fp->rx_buf_size, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 879 | DMA_FROM_DEVICE); |
| 880 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
| 881 | dev_kfree_skb(skb); |
| 882 | return -ENOMEM; |
| 883 | } |
| 884 | |
| 885 | rx_buf->skb = skb; |
| 886 | dma_unmap_addr_set(rx_buf, mapping, mapping); |
| 887 | |
| 888 | rx_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 889 | rx_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
| 890 | |
| 891 | return 0; |
| 892 | } |
| 893 | |
| 894 | /* note that we are not allocating a new skb, |
| 895 | * we are just moving one from cons to prod |
| 896 | * we are not creating a new mapping, |
| 897 | * so there is no need to check for dma_mapping_error(). |
| 898 | */ |
| 899 | static inline void bnx2x_reuse_rx_skb(struct bnx2x_fastpath *fp, |
Dmitry Kravkov | 749a850 | 2010-10-06 03:29:05 +0000 | [diff] [blame] | 900 | u16 cons, u16 prod) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 901 | { |
| 902 | struct bnx2x *bp = fp->bp; |
| 903 | struct sw_rx_bd *cons_rx_buf = &fp->rx_buf_ring[cons]; |
| 904 | struct sw_rx_bd *prod_rx_buf = &fp->rx_buf_ring[prod]; |
| 905 | struct eth_rx_bd *cons_bd = &fp->rx_desc_ring[cons]; |
| 906 | struct eth_rx_bd *prod_bd = &fp->rx_desc_ring[prod]; |
| 907 | |
| 908 | dma_sync_single_for_device(&bp->pdev->dev, |
| 909 | dma_unmap_addr(cons_rx_buf, mapping), |
| 910 | RX_COPY_THRESH, DMA_FROM_DEVICE); |
| 911 | |
| 912 | prod_rx_buf->skb = cons_rx_buf->skb; |
| 913 | dma_unmap_addr_set(prod_rx_buf, mapping, |
| 914 | dma_unmap_addr(cons_rx_buf, mapping)); |
| 915 | *prod_bd = *cons_bd; |
| 916 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 917 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 918 | static inline void bnx2x_free_rx_sge_range(struct bnx2x *bp, |
| 919 | struct bnx2x_fastpath *fp, int last) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 920 | { |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 921 | int i; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 922 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 923 | if (fp->disable_tpa) |
| 924 | return; |
| 925 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 926 | for (i = 0; i < last; i++) |
| 927 | bnx2x_free_rx_sge(bp, fp, i); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 928 | } |
| 929 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 930 | static inline void bnx2x_free_tpa_pool(struct bnx2x *bp, |
| 931 | struct bnx2x_fastpath *fp, int last) |
| 932 | { |
| 933 | int i; |
| 934 | |
| 935 | for (i = 0; i < last; i++) { |
| 936 | struct sw_rx_bd *rx_buf = &(fp->tpa_pool[i]); |
| 937 | struct sk_buff *skb = rx_buf->skb; |
| 938 | |
| 939 | if (skb == NULL) { |
| 940 | DP(NETIF_MSG_IFDOWN, "tpa bin %d empty on free\n", i); |
| 941 | continue; |
| 942 | } |
| 943 | |
| 944 | if (fp->tpa_state[i] == BNX2X_TPA_START) |
| 945 | dma_unmap_single(&bp->pdev->dev, |
| 946 | dma_unmap_addr(rx_buf, mapping), |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 947 | fp->rx_buf_size, DMA_FROM_DEVICE); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 948 | |
| 949 | dev_kfree_skb(skb); |
| 950 | rx_buf->skb = NULL; |
| 951 | } |
| 952 | } |
| 953 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 954 | static inline void bnx2x_init_tx_ring_one(struct bnx2x_fastpath *fp) |
| 955 | { |
| 956 | int i; |
| 957 | |
| 958 | for (i = 1; i <= NUM_TX_RINGS; i++) { |
| 959 | struct eth_tx_next_bd *tx_next_bd = |
| 960 | &fp->tx_desc_ring[TX_DESC_CNT * i - 1].next_bd; |
| 961 | |
| 962 | tx_next_bd->addr_hi = |
| 963 | cpu_to_le32(U64_HI(fp->tx_desc_mapping + |
| 964 | BCM_PAGE_SIZE*(i % NUM_TX_RINGS))); |
| 965 | tx_next_bd->addr_lo = |
| 966 | cpu_to_le32(U64_LO(fp->tx_desc_mapping + |
| 967 | BCM_PAGE_SIZE*(i % NUM_TX_RINGS))); |
| 968 | } |
| 969 | |
| 970 | SET_FLAG(fp->tx_db.data.header.header, DOORBELL_HDR_DB_TYPE, 1); |
| 971 | fp->tx_db.data.zero_fill1 = 0; |
| 972 | fp->tx_db.data.prod = 0; |
| 973 | |
| 974 | fp->tx_pkt_prod = 0; |
| 975 | fp->tx_pkt_cons = 0; |
| 976 | fp->tx_bd_prod = 0; |
| 977 | fp->tx_bd_cons = 0; |
| 978 | fp->tx_pkt = 0; |
| 979 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 980 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 981 | static inline void bnx2x_init_tx_rings(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 982 | { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 983 | int i; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 984 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 985 | for_each_tx_queue(bp, i) |
| 986 | bnx2x_init_tx_ring_one(&bp->fp[i]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 987 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 988 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 989 | static inline void bnx2x_set_next_page_rx_bd(struct bnx2x_fastpath *fp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 990 | { |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 991 | int i; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 992 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 993 | for (i = 1; i <= NUM_RX_RINGS; i++) { |
| 994 | struct eth_rx_bd *rx_bd; |
| 995 | |
| 996 | rx_bd = &fp->rx_desc_ring[RX_DESC_CNT * i - 2]; |
| 997 | rx_bd->addr_hi = |
| 998 | cpu_to_le32(U64_HI(fp->rx_desc_mapping + |
| 999 | BCM_PAGE_SIZE*(i % NUM_RX_RINGS))); |
| 1000 | rx_bd->addr_lo = |
| 1001 | cpu_to_le32(U64_LO(fp->rx_desc_mapping + |
| 1002 | BCM_PAGE_SIZE*(i % NUM_RX_RINGS))); |
| 1003 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1004 | } |
| 1005 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1006 | static inline void bnx2x_set_next_page_sgl(struct bnx2x_fastpath *fp) |
| 1007 | { |
| 1008 | int i; |
| 1009 | |
| 1010 | for (i = 1; i <= NUM_RX_SGE_PAGES; i++) { |
| 1011 | struct eth_rx_sge *sge; |
| 1012 | |
| 1013 | sge = &fp->rx_sge_ring[RX_SGE_CNT * i - 2]; |
| 1014 | sge->addr_hi = |
| 1015 | cpu_to_le32(U64_HI(fp->rx_sge_mapping + |
| 1016 | BCM_PAGE_SIZE*(i % NUM_RX_SGE_PAGES))); |
| 1017 | |
| 1018 | sge->addr_lo = |
| 1019 | cpu_to_le32(U64_LO(fp->rx_sge_mapping + |
| 1020 | BCM_PAGE_SIZE*(i % NUM_RX_SGE_PAGES))); |
| 1021 | } |
| 1022 | } |
| 1023 | |
| 1024 | static inline void bnx2x_set_next_page_rx_cq(struct bnx2x_fastpath *fp) |
| 1025 | { |
| 1026 | int i; |
| 1027 | for (i = 1; i <= NUM_RCQ_RINGS; i++) { |
| 1028 | struct eth_rx_cqe_next_page *nextpg; |
| 1029 | |
| 1030 | nextpg = (struct eth_rx_cqe_next_page *) |
| 1031 | &fp->rx_comp_ring[RCQ_DESC_CNT * i - 1]; |
| 1032 | nextpg->addr_hi = |
| 1033 | cpu_to_le32(U64_HI(fp->rx_comp_mapping + |
| 1034 | BCM_PAGE_SIZE*(i % NUM_RCQ_RINGS))); |
| 1035 | nextpg->addr_lo = |
| 1036 | cpu_to_le32(U64_LO(fp->rx_comp_mapping + |
| 1037 | BCM_PAGE_SIZE*(i % NUM_RCQ_RINGS))); |
| 1038 | } |
| 1039 | } |
| 1040 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1041 | /* Returns the number of actually allocated BDs */ |
| 1042 | static inline int bnx2x_alloc_rx_bds(struct bnx2x_fastpath *fp, |
| 1043 | int rx_ring_size) |
| 1044 | { |
| 1045 | struct bnx2x *bp = fp->bp; |
| 1046 | u16 ring_prod, cqe_ring_prod; |
| 1047 | int i; |
| 1048 | |
| 1049 | fp->rx_comp_cons = 0; |
| 1050 | cqe_ring_prod = ring_prod = 0; |
| 1051 | |
| 1052 | /* This routine is called only during fo init so |
| 1053 | * fp->eth_q_stats.rx_skb_alloc_failed = 0 |
| 1054 | */ |
| 1055 | for (i = 0; i < rx_ring_size; i++) { |
| 1056 | if (bnx2x_alloc_rx_skb(bp, fp, ring_prod) < 0) { |
| 1057 | fp->eth_q_stats.rx_skb_alloc_failed++; |
| 1058 | continue; |
| 1059 | } |
| 1060 | ring_prod = NEXT_RX_IDX(ring_prod); |
| 1061 | cqe_ring_prod = NEXT_RCQ_IDX(cqe_ring_prod); |
| 1062 | WARN_ON(ring_prod <= (i - fp->eth_q_stats.rx_skb_alloc_failed)); |
| 1063 | } |
| 1064 | |
| 1065 | if (fp->eth_q_stats.rx_skb_alloc_failed) |
| 1066 | BNX2X_ERR("was only able to allocate " |
| 1067 | "%d rx skbs on queue[%d]\n", |
| 1068 | (i - fp->eth_q_stats.rx_skb_alloc_failed), fp->index); |
| 1069 | |
| 1070 | fp->rx_bd_prod = ring_prod; |
| 1071 | /* Limit the CQE producer by the CQE ring size */ |
| 1072 | fp->rx_comp_prod = min_t(u16, NUM_RCQ_RINGS*RCQ_DESC_CNT, |
| 1073 | cqe_ring_prod); |
| 1074 | fp->rx_pkt = fp->rx_calls = 0; |
| 1075 | |
| 1076 | return i - fp->eth_q_stats.rx_skb_alloc_failed; |
| 1077 | } |
| 1078 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1079 | #ifdef BCM_CNIC |
| 1080 | static inline void bnx2x_init_fcoe_fp(struct bnx2x *bp) |
| 1081 | { |
| 1082 | bnx2x_fcoe(bp, cl_id) = BNX2X_FCOE_ETH_CL_ID + |
| 1083 | BP_E1HVN(bp) * NONE_ETH_CONTEXT_USE; |
| 1084 | bnx2x_fcoe(bp, cid) = BNX2X_FCOE_ETH_CID; |
| 1085 | bnx2x_fcoe(bp, fw_sb_id) = DEF_SB_ID; |
| 1086 | bnx2x_fcoe(bp, igu_sb_id) = bp->igu_dsb_id; |
| 1087 | bnx2x_fcoe(bp, bp) = bp; |
| 1088 | bnx2x_fcoe(bp, state) = BNX2X_FP_STATE_CLOSED; |
| 1089 | bnx2x_fcoe(bp, index) = FCOE_IDX; |
| 1090 | bnx2x_fcoe(bp, rx_cons_sb) = BNX2X_FCOE_L2_RX_INDEX; |
| 1091 | bnx2x_fcoe(bp, tx_cons_sb) = BNX2X_FCOE_L2_TX_INDEX; |
| 1092 | /* qZone id equals to FW (per path) client id */ |
| 1093 | bnx2x_fcoe(bp, cl_qzone_id) = bnx2x_fcoe(bp, cl_id) + |
| 1094 | BP_PORT(bp)*(CHIP_IS_E2(bp) ? ETH_MAX_RX_CLIENTS_E2 : |
| 1095 | ETH_MAX_RX_CLIENTS_E1H); |
| 1096 | /* init shortcut */ |
| 1097 | bnx2x_fcoe(bp, ustorm_rx_prods_offset) = CHIP_IS_E2(bp) ? |
| 1098 | USTORM_RX_PRODS_E2_OFFSET(bnx2x_fcoe(bp, cl_qzone_id)) : |
| 1099 | USTORM_RX_PRODS_E1X_OFFSET(BP_PORT(bp), bnx2x_fcoe_fp(bp)->cl_id); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1100 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1101 | } |
| 1102 | #endif |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1103 | |
| 1104 | static inline void __storm_memset_struct(struct bnx2x *bp, |
| 1105 | u32 addr, size_t size, u32 *data) |
| 1106 | { |
| 1107 | int i; |
| 1108 | for (i = 0; i < size/4; i++) |
| 1109 | REG_WR(bp, addr + (i * 4), data[i]); |
| 1110 | } |
| 1111 | |
| 1112 | static inline void storm_memset_mac_filters(struct bnx2x *bp, |
| 1113 | struct tstorm_eth_mac_filter_config *mac_filters, |
| 1114 | u16 abs_fid) |
| 1115 | { |
| 1116 | size_t size = sizeof(struct tstorm_eth_mac_filter_config); |
| 1117 | |
| 1118 | u32 addr = BAR_TSTRORM_INTMEM + |
| 1119 | TSTORM_MAC_FILTER_CONFIG_OFFSET(abs_fid); |
| 1120 | |
| 1121 | __storm_memset_struct(bp, addr, size, (u32 *)mac_filters); |
| 1122 | } |
| 1123 | |
| 1124 | static inline void storm_memset_cmng(struct bnx2x *bp, |
| 1125 | struct cmng_struct_per_port *cmng, |
| 1126 | u8 port) |
| 1127 | { |
Dmitry Kravkov | 3b7f817 | 2011-03-31 17:04:01 -0700 | [diff] [blame] | 1128 | size_t size = |
| 1129 | sizeof(struct rate_shaping_vars_per_port) + |
| 1130 | sizeof(struct fairness_vars_per_port) + |
| 1131 | sizeof(struct safc_struct_per_port) + |
| 1132 | sizeof(struct pfc_struct_per_port); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1133 | |
| 1134 | u32 addr = BAR_XSTRORM_INTMEM + |
| 1135 | XSTORM_CMNG_PER_PORT_VARS_OFFSET(port); |
| 1136 | |
| 1137 | __storm_memset_struct(bp, addr, size, (u32 *)cmng); |
Dmitry Kravkov | 3b7f817 | 2011-03-31 17:04:01 -0700 | [diff] [blame] | 1138 | |
| 1139 | addr += size + 4 /* SKIP DCB+LLFC */; |
| 1140 | size = sizeof(struct cmng_struct_per_port) - |
| 1141 | size /* written */ - 4 /*skipped*/; |
| 1142 | |
| 1143 | __storm_memset_struct(bp, addr, size, |
| 1144 | (u32 *)(cmng->traffic_type_to_priority_cos)); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1145 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 1146 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1147 | /* HW Lock for shared dual port PHYs */ |
| 1148 | void bnx2x_acquire_phy_lock(struct bnx2x *bp); |
| 1149 | void bnx2x_release_phy_lock(struct bnx2x *bp); |
| 1150 | |
Dmitry Kravkov | faa6fcb | 2011-02-28 03:37:20 +0000 | [diff] [blame] | 1151 | /** |
| 1152 | * Extracts MAX BW part from MF configuration. |
| 1153 | * |
| 1154 | * @param bp |
| 1155 | * @param mf_cfg |
| 1156 | * |
| 1157 | * @return u16 |
| 1158 | */ |
| 1159 | static inline u16 bnx2x_extract_max_cfg(struct bnx2x *bp, u32 mf_cfg) |
| 1160 | { |
| 1161 | u16 max_cfg = (mf_cfg & FUNC_MF_CFG_MAX_BW_MASK) >> |
| 1162 | FUNC_MF_CFG_MAX_BW_SHIFT; |
| 1163 | if (!max_cfg) { |
| 1164 | BNX2X_ERR("Illegal configuration detected for Max BW - " |
| 1165 | "using 100 instead\n"); |
| 1166 | max_cfg = 100; |
| 1167 | } |
| 1168 | return max_cfg; |
| 1169 | } |
| 1170 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1171 | #endif /* BNX2X_CMN_H */ |