1 /* QLogic qed NIC Driver
3 * Copyright (c) 2015 QLogic Corporation
5 * This software is available under the terms of the GNU General Public License
6 * (GPL) Version 2, available from the file COPYING in the main directory of
13 #include <linux/types.h>
14 #include <linux/interrupt.h>
15 #include <linux/netdevice.h>
16 #include <linux/pci.h>
17 #include <linux/skbuff.h>
18 #include <linux/types.h>
19 #include <asm/byteorder.h>
21 #include <linux/compiler.h>
22 #include <linux/kernel.h>
23 #include <linux/list.h>
24 #include <linux/slab.h>
25 #include <linux/qed/common_hsi.h>
26 #include <linux/qed/qed_chain.h>
34 #define DIRECT_REG_WR(reg_addr, val) writel((u32)val, \
35 (void __iomem *)(reg_addr))
37 #define DIRECT_REG_RD(reg_addr) readl((void __iomem *)(reg_addr))
39 #define QED_COALESCE_MAX 0xFF
44 struct qed_eth_pf_params {
45 /* The following parameters are used during HW-init
46 * and these parameters need to be passed as arguments
47 * to update_pf_params routine invoked before slowpath start
52 struct qed_pf_params {
53 struct qed_eth_pf_params eth_pf_params;
64 struct status_block *sb_virt;
66 u32 sb_ack; /* Last given ack */
68 void __iomem *igu_addr;
70 #define QED_SB_INFO_INIT 0x1
71 #define QED_SB_INFO_SETUP 0x2
77 unsigned long pci_mem_start;
78 unsigned long pci_mem_end;
106 struct qed_link_params {
109 #define QED_LINK_OVERRIDE_SPEED_AUTONEG BIT(0)
110 #define QED_LINK_OVERRIDE_SPEED_ADV_SPEEDS BIT(1)
111 #define QED_LINK_OVERRIDE_SPEED_FORCED_SPEED BIT(2)
112 #define QED_LINK_OVERRIDE_PAUSE_CONFIG BIT(3)
117 #define QED_LINK_PAUSE_AUTONEG_ENABLE BIT(0)
118 #define QED_LINK_PAUSE_RX_ENABLE BIT(1)
119 #define QED_LINK_PAUSE_TX_ENABLE BIT(2)
123 struct qed_link_output {
126 u32 supported_caps; /* In SUPPORTED defs */
127 u32 advertised_caps; /* In ADVERTISED defs */
128 u32 lp_caps; /* In ADVERTISED defs */
129 u32 speed; /* In Mb/s */
130 u8 duplex; /* In DUPLEX defs */
131 u8 port; /* In PORT defs */
136 #define QED_DRV_VER_STR_SIZE 12
137 struct qed_slowpath_params {
143 u8 name[QED_DRV_VER_STR_SIZE];
146 #define ILT_PAGE_SIZE_TCFC 0x8000 /* 32KB */
148 struct qed_int_info {
149 struct msix_entry *msix;
152 /* This should be updated by the protocol driver */
156 struct qed_common_cb_ops {
157 void (*link_update)(void *dev,
158 struct qed_link_output *link);
161 struct qed_common_ops {
162 struct qed_dev* (*probe)(struct pci_dev *dev,
163 enum qed_protocol protocol,
164 u32 dp_module, u8 dp_level);
166 void (*remove)(struct qed_dev *cdev);
168 int (*set_power_state)(struct qed_dev *cdev,
171 void (*set_id)(struct qed_dev *cdev,
175 /* Client drivers need to make this call before slowpath_start.
176 * PF params required for the call before slowpath_start is
177 * documented within the qed_pf_params structure definition.
179 void (*update_pf_params)(struct qed_dev *cdev,
180 struct qed_pf_params *params);
181 int (*slowpath_start)(struct qed_dev *cdev,
182 struct qed_slowpath_params *params);
184 int (*slowpath_stop)(struct qed_dev *cdev);
186 /* Requests to use `cnt' interrupts for fastpath.
187 * upon success, returns number of interrupts allocated for fastpath.
189 int (*set_fp_int)(struct qed_dev *cdev,
192 /* Fills `info' with pointers required for utilizing interrupts */
193 int (*get_fp_int)(struct qed_dev *cdev,
194 struct qed_int_info *info);
196 u32 (*sb_init)(struct qed_dev *cdev,
197 struct qed_sb_info *sb_info,
199 dma_addr_t sb_phy_addr,
201 enum qed_sb_type type);
203 u32 (*sb_release)(struct qed_dev *cdev,
204 struct qed_sb_info *sb_info,
207 void (*simd_handler_config)(struct qed_dev *cdev,
210 void (*handler)(void *));
212 void (*simd_handler_clean)(struct qed_dev *cdev,
215 * @brief set_link - set links according to params
218 * @param params - values used to override the default link configuration
220 * @return 0 on success, error otherwise.
222 int (*set_link)(struct qed_dev *cdev,
223 struct qed_link_params *params);
226 * @brief get_link - returns the current link state.
229 * @param if_link - structure to be filled with current link configuration.
231 void (*get_link)(struct qed_dev *cdev,
232 struct qed_link_output *if_link);
235 * @brief - drains chip in case Tx completions fail to arrive due to pause.
239 int (*drain)(struct qed_dev *cdev);
242 * @brief update_msglvl - update module debug level
248 void (*update_msglvl)(struct qed_dev *cdev,
252 int (*chain_alloc)(struct qed_dev *cdev,
253 enum qed_chain_use_mode intended_use,
254 enum qed_chain_mode mode,
257 struct qed_chain *p_chain);
259 void (*chain_free)(struct qed_dev *cdev,
260 struct qed_chain *p_chain);
263 * @brief set_led - Configure LED mode
266 * @param mode - LED mode
268 * @return 0 on success, error otherwise.
270 int (*set_led)(struct qed_dev *cdev,
271 enum qed_led_mode mode);
275 * @brief qed_get_protocol_version
279 * @return version supported by qed for given protocol driver
281 u32 qed_get_protocol_version(enum qed_protocol protocol);
283 #define MASK_FIELD(_name, _value) \
284 ((_value) &= (_name ## _MASK))
286 #define FIELD_VALUE(_name, _value) \
287 ((_value & _name ## _MASK) << _name ## _SHIFT)
289 #define SET_FIELD(value, name, flag) \
291 (value) &= ~(name ## _MASK << name ## _SHIFT); \
292 (value) |= (((u64)flag) << (name ## _SHIFT)); \
295 #define GET_FIELD(value, name) \
296 (((value) >> (name ## _SHIFT)) & name ## _MASK)
298 /* Debug print definitions */
299 #define DP_ERR(cdev, fmt, ...) \
300 pr_err("[%s:%d(%s)]" fmt, \
301 __func__, __LINE__, \
302 DP_NAME(cdev) ? DP_NAME(cdev) : "", \
305 #define DP_NOTICE(cdev, fmt, ...) \
307 if (unlikely((cdev)->dp_level <= QED_LEVEL_NOTICE)) { \
308 pr_notice("[%s:%d(%s)]" fmt, \
309 __func__, __LINE__, \
310 DP_NAME(cdev) ? DP_NAME(cdev) : "", \
316 #define DP_INFO(cdev, fmt, ...) \
318 if (unlikely((cdev)->dp_level <= QED_LEVEL_INFO)) { \
319 pr_notice("[%s:%d(%s)]" fmt, \
320 __func__, __LINE__, \
321 DP_NAME(cdev) ? DP_NAME(cdev) : "", \
326 #define DP_VERBOSE(cdev, module, fmt, ...) \
328 if (unlikely(((cdev)->dp_level <= QED_LEVEL_VERBOSE) && \
329 ((cdev)->dp_module & module))) { \
330 pr_notice("[%s:%d(%s)]" fmt, \
331 __func__, __LINE__, \
332 DP_NAME(cdev) ? DP_NAME(cdev) : "", \
338 QED_LEVEL_VERBOSE = 0x0,
339 QED_LEVEL_INFO = 0x1,
340 QED_LEVEL_NOTICE = 0x2,
344 #define QED_LOG_LEVEL_SHIFT (30)
345 #define QED_LOG_VERBOSE_MASK (0x3fffffff)
346 #define QED_LOG_INFO_MASK (0x40000000)
347 #define QED_LOG_NOTICE_MASK (0x80000000)
350 QED_MSG_SPQ = 0x10000,
351 QED_MSG_STATS = 0x20000,
352 QED_MSG_DCB = 0x40000,
353 QED_MSG_IOV = 0x80000,
354 QED_MSG_SP = 0x100000,
355 QED_MSG_STORAGE = 0x200000,
356 QED_MSG_CXT = 0x800000,
357 QED_MSG_ILT = 0x2000000,
358 QED_MSG_ROCE = 0x4000000,
359 QED_MSG_DEBUG = 0x8000000,
360 /* to be added...up to 0x8000000 */
363 struct qed_eth_stats {
364 u64 no_buff_discards;
365 u64 packet_too_big_discard;
373 u64 mftag_filter_discards;
374 u64 mac_filter_discards;
381 u64 tx_err_drop_pkts;
382 u64 tpa_coalesced_pkts;
383 u64 tpa_coalesced_events;
385 u64 tpa_not_coalesced_pkts;
386 u64 tpa_coalesced_bytes;
389 u64 rx_64_byte_packets;
390 u64 rx_127_byte_packets;
391 u64 rx_255_byte_packets;
392 u64 rx_511_byte_packets;
393 u64 rx_1023_byte_packets;
394 u64 rx_1518_byte_packets;
395 u64 rx_1522_byte_packets;
396 u64 rx_2047_byte_packets;
397 u64 rx_4095_byte_packets;
398 u64 rx_9216_byte_packets;
399 u64 rx_16383_byte_packets;
401 u64 rx_mac_crtl_frames;
405 u64 rx_carrier_errors;
406 u64 rx_oversize_packets;
408 u64 rx_undersize_packets;
410 u64 tx_64_byte_packets;
411 u64 tx_65_to_127_byte_packets;
412 u64 tx_128_to_255_byte_packets;
413 u64 tx_256_to_511_byte_packets;
414 u64 tx_512_to_1023_byte_packets;
415 u64 tx_1024_to_1518_byte_packets;
416 u64 tx_1519_to_2047_byte_packets;
417 u64 tx_2048_to_4095_byte_packets;
418 u64 tx_4096_to_9216_byte_packets;
419 u64 tx_9217_to_16383_byte_packets;
422 u64 tx_lpi_entry_count;
423 u64 tx_total_collisions;
427 u64 rx_mac_uc_packets;
428 u64 rx_mac_mc_packets;
429 u64 rx_mac_bc_packets;
430 u64 rx_mac_frames_ok;
432 u64 tx_mac_uc_packets;
433 u64 tx_mac_mc_packets;
434 u64 tx_mac_bc_packets;
435 u64 tx_mac_ctrl_frames;
438 #define QED_SB_IDX 0x0002
441 #define TX_PI(tc) (RX_PI + 1 + tc)
443 static inline u16 qed_sb_update_sb_idx(struct qed_sb_info *sb_info)
448 prod = le32_to_cpu(sb_info->sb_virt->prod_index) &
449 STATUS_BLOCK_PROD_INDEX_MASK;
450 if (sb_info->sb_ack != prod) {
451 sb_info->sb_ack = prod;
462 * @brief This function creates an update command for interrupts that is
463 * written to the IGU.
465 * @param sb_info - This is the structure allocated and
466 * initialized per status block. Assumption is
467 * that it was initialized using qed_sb_init
468 * @param int_cmd - Enable/Disable/Nop
469 * @param upd_flg - whether igu consumer should be
472 * @return inline void
474 static inline void qed_sb_ack(struct qed_sb_info *sb_info,
475 enum igu_int_cmd int_cmd,
478 struct igu_prod_cons_update igu_ack = { 0 };
480 igu_ack.sb_id_and_flags =
481 ((sb_info->sb_ack << IGU_PROD_CONS_UPDATE_SB_INDEX_SHIFT) |
482 (upd_flg << IGU_PROD_CONS_UPDATE_UPDATE_FLAG_SHIFT) |
483 (int_cmd << IGU_PROD_CONS_UPDATE_ENABLE_INT_SHIFT) |
484 (IGU_SEG_ACCESS_REG <<
485 IGU_PROD_CONS_UPDATE_SEGMENT_ACCESS_SHIFT));
487 DIRECT_REG_WR(sb_info->igu_addr, igu_ack.sb_id_and_flags);
489 /* Both segments (interrupts & acks) are written to same place address;
490 * Need to guarantee all commands will be received (in-order) by HW.
496 static inline void __internal_ram_wr(void *p_hwfn,
504 for (i = 0; i < size / sizeof(*data); i++)
505 DIRECT_REG_WR(&((u32 __iomem *)addr)[i], data[i]);
508 static inline void internal_ram_wr(void __iomem *addr,
512 __internal_ram_wr(NULL, addr, size, data);