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>
28 enum dcbx_protocol_type {
32 DCBX_PROTOCOL_ROCE_V2,
34 DCBX_MAX_PROTOCOL_TYPE
37 #define QED_ROCE_PROTOCOL_INDEX (3)
40 #define QED_LLDP_CHASSIS_ID_STAT_LEN 4
41 #define QED_LLDP_PORT_ID_STAT_LEN 4
42 #define QED_DCBX_MAX_APP_PROTOCOL 32
43 #define QED_MAX_PFC_PRIORITIES 8
44 #define QED_DCBX_DSCP_SIZE 64
46 struct qed_dcbx_lldp_remote {
47 u32 peer_chassis_id[QED_LLDP_CHASSIS_ID_STAT_LEN];
48 u32 peer_port_id[QED_LLDP_PORT_ID_STAT_LEN];
55 struct qed_dcbx_lldp_local {
56 u32 local_chassis_id[QED_LLDP_CHASSIS_ID_STAT_LEN];
57 u32 local_port_id[QED_LLDP_PORT_ID_STAT_LEN];
60 struct qed_dcbx_app_prio {
68 struct qed_dbcx_pfc_params {
71 u8 prio[QED_MAX_PFC_PRIORITIES];
75 enum qed_dcbx_sf_ieee_type {
76 QED_DCBX_SF_IEEE_ETHTYPE,
77 QED_DCBX_SF_IEEE_TCP_PORT,
78 QED_DCBX_SF_IEEE_UDP_PORT,
79 QED_DCBX_SF_IEEE_TCP_UDP_PORT
82 struct qed_app_entry {
84 enum qed_dcbx_sf_ieee_type sf_ieee;
88 enum dcbx_protocol_type proto_type;
91 struct qed_dcbx_params {
92 struct qed_app_entry app_entry[QED_DCBX_MAX_APP_PROTOCOL];
101 u8 ets_pri_tc_tbl[QED_MAX_PFC_PRIORITIES];
102 u8 ets_tc_bw_tbl[QED_MAX_PFC_PRIORITIES];
103 u8 ets_tc_tsa_tbl[QED_MAX_PFC_PRIORITIES];
104 struct qed_dbcx_pfc_params pfc;
108 struct qed_dcbx_admin_params {
109 struct qed_dcbx_params params;
113 struct qed_dcbx_remote_params {
114 struct qed_dcbx_params params;
118 struct qed_dcbx_operational_params {
119 struct qed_dcbx_app_prio app_prio;
120 struct qed_dcbx_params params;
128 struct qed_dcbx_get {
129 struct qed_dcbx_operational_params operational;
130 struct qed_dcbx_lldp_remote lldp_remote;
131 struct qed_dcbx_lldp_local lldp_local;
132 struct qed_dcbx_remote_params remote;
133 struct qed_dcbx_admin_params local;
143 #define DIRECT_REG_WR(reg_addr, val) writel((u32)val, \
144 (void __iomem *)(reg_addr))
146 #define DIRECT_REG_RD(reg_addr) readl((void __iomem *)(reg_addr))
148 #define QED_COALESCE_MAX 0xFF
153 struct qed_eth_pf_params {
154 /* The following parameters are used during HW-init
155 * and these parameters need to be passed as arguments
156 * to update_pf_params routine invoked before slowpath start
161 /* Most of the the parameters below are described in the FW iSCSI / TCP HSI */
162 struct qed_iscsi_pf_params {
163 u64 glbl_q_params_addr;
164 u64 bdq_pbl_base_addr[2];
167 u16 cmdq_num_entries;
168 u16 dup_ack_threshold;
174 /* The following parameters are used during HW-init
175 * and these parameters need to be passed as arguments
176 * to update_pf_params routine invoked before slowpath start
181 /* The following parameters are used during protocol-init */
182 u16 half_way_close_timeout;
183 u16 bdq_xoff_threshold[2];
184 u16 bdq_xon_threshold[2];
185 u16 cmdq_xoff_threshold;
186 u16 cmdq_xon_threshold;
189 u8 num_sq_pages_in_ring;
190 u8 num_r2tq_pages_in_ring;
191 u8 num_uhq_pages_in_ring;
203 u8 bdq_pbl_num_entries[2];
206 struct qed_rdma_pf_params {
207 /* Supplied to QED during resource allocation (may affect the ILT and
210 u32 min_dpis; /* number of requested DPIs */
211 u32 num_mrs; /* number of requested memory regions */
212 u32 num_qps; /* number of requested Queue Pairs */
213 u32 num_srqs; /* number of requested SRQ */
214 u8 roce_edpm_mode; /* see QED_ROCE_EDPM_MODE_ENABLE */
215 u8 gl_pi; /* protocol index */
217 /* Will allocate rate limiters to be used with QPs */
221 struct qed_pf_params {
222 struct qed_eth_pf_params eth_pf_params;
223 struct qed_iscsi_pf_params iscsi_pf_params;
224 struct qed_rdma_pf_params rdma_pf_params;
235 struct status_block *sb_virt;
237 u32 sb_ack; /* Last given ack */
239 void __iomem *igu_addr;
241 #define QED_SB_INFO_INIT 0x1
242 #define QED_SB_INFO_SETUP 0x2
244 struct qed_dev *cdev;
247 struct qed_dev_info {
248 unsigned long pci_mem_start;
249 unsigned long pci_mem_end;
250 unsigned int pci_irq;
272 QED_SB_TYPE_L2_QUEUE,
281 enum qed_link_mode_bits {
282 QED_LM_FIBRE_BIT = BIT(0),
283 QED_LM_Autoneg_BIT = BIT(1),
284 QED_LM_Asym_Pause_BIT = BIT(2),
285 QED_LM_Pause_BIT = BIT(3),
286 QED_LM_1000baseT_Half_BIT = BIT(4),
287 QED_LM_1000baseT_Full_BIT = BIT(5),
288 QED_LM_10000baseKR_Full_BIT = BIT(6),
289 QED_LM_25000baseKR_Full_BIT = BIT(7),
290 QED_LM_40000baseLR4_Full_BIT = BIT(8),
291 QED_LM_50000baseKR2_Full_BIT = BIT(9),
292 QED_LM_100000baseKR4_Full_BIT = BIT(10),
296 struct qed_link_params {
299 #define QED_LINK_OVERRIDE_SPEED_AUTONEG BIT(0)
300 #define QED_LINK_OVERRIDE_SPEED_ADV_SPEEDS BIT(1)
301 #define QED_LINK_OVERRIDE_SPEED_FORCED_SPEED BIT(2)
302 #define QED_LINK_OVERRIDE_PAUSE_CONFIG BIT(3)
303 #define QED_LINK_OVERRIDE_LOOPBACK_MODE BIT(4)
308 #define QED_LINK_PAUSE_AUTONEG_ENABLE BIT(0)
309 #define QED_LINK_PAUSE_RX_ENABLE BIT(1)
310 #define QED_LINK_PAUSE_TX_ENABLE BIT(2)
312 #define QED_LINK_LOOPBACK_NONE BIT(0)
313 #define QED_LINK_LOOPBACK_INT_PHY BIT(1)
314 #define QED_LINK_LOOPBACK_EXT_PHY BIT(2)
315 #define QED_LINK_LOOPBACK_EXT BIT(3)
316 #define QED_LINK_LOOPBACK_MAC BIT(4)
320 struct qed_link_output {
323 /* In QED_LM_* defs */
328 u32 speed; /* In Mb/s */
329 u8 duplex; /* In DUPLEX defs */
330 u8 port; /* In PORT defs */
335 struct qed_probe_params {
336 enum qed_protocol protocol;
342 #define QED_DRV_VER_STR_SIZE 12
343 struct qed_slowpath_params {
349 u8 name[QED_DRV_VER_STR_SIZE];
352 #define ILT_PAGE_SIZE_TCFC 0x8000 /* 32KB */
354 struct qed_int_info {
355 struct msix_entry *msix;
358 /* This should be updated by the protocol driver */
362 struct qed_common_cb_ops {
363 void (*link_update)(void *dev,
364 struct qed_link_output *link);
367 struct qed_selftest_ops {
369 * @brief selftest_interrupt - Perform interrupt test
373 * @return 0 on success, error otherwise.
375 int (*selftest_interrupt)(struct qed_dev *cdev);
378 * @brief selftest_memory - Perform memory test
382 * @return 0 on success, error otherwise.
384 int (*selftest_memory)(struct qed_dev *cdev);
387 * @brief selftest_register - Perform register test
391 * @return 0 on success, error otherwise.
393 int (*selftest_register)(struct qed_dev *cdev);
396 * @brief selftest_clock - Perform clock test
400 * @return 0 on success, error otherwise.
402 int (*selftest_clock)(struct qed_dev *cdev);
405 struct qed_common_ops {
406 struct qed_selftest_ops *selftest;
408 struct qed_dev* (*probe)(struct pci_dev *dev,
409 struct qed_probe_params *params);
411 void (*remove)(struct qed_dev *cdev);
413 int (*set_power_state)(struct qed_dev *cdev,
416 void (*set_id)(struct qed_dev *cdev,
420 /* Client drivers need to make this call before slowpath_start.
421 * PF params required for the call before slowpath_start is
422 * documented within the qed_pf_params structure definition.
424 void (*update_pf_params)(struct qed_dev *cdev,
425 struct qed_pf_params *params);
426 int (*slowpath_start)(struct qed_dev *cdev,
427 struct qed_slowpath_params *params);
429 int (*slowpath_stop)(struct qed_dev *cdev);
431 /* Requests to use `cnt' interrupts for fastpath.
432 * upon success, returns number of interrupts allocated for fastpath.
434 int (*set_fp_int)(struct qed_dev *cdev,
437 /* Fills `info' with pointers required for utilizing interrupts */
438 int (*get_fp_int)(struct qed_dev *cdev,
439 struct qed_int_info *info);
441 u32 (*sb_init)(struct qed_dev *cdev,
442 struct qed_sb_info *sb_info,
444 dma_addr_t sb_phy_addr,
446 enum qed_sb_type type);
448 u32 (*sb_release)(struct qed_dev *cdev,
449 struct qed_sb_info *sb_info,
452 void (*simd_handler_config)(struct qed_dev *cdev,
455 void (*handler)(void *));
457 void (*simd_handler_clean)(struct qed_dev *cdev,
460 int (*dbg_all_data) (struct qed_dev *cdev, void *buffer);
462 int (*dbg_all_data_size) (struct qed_dev *cdev);
465 * @brief can_link_change - can the instance change the link or not
469 * @return true if link-change is allowed, false otherwise.
471 bool (*can_link_change)(struct qed_dev *cdev);
474 * @brief set_link - set links according to params
477 * @param params - values used to override the default link configuration
479 * @return 0 on success, error otherwise.
481 int (*set_link)(struct qed_dev *cdev,
482 struct qed_link_params *params);
485 * @brief get_link - returns the current link state.
488 * @param if_link - structure to be filled with current link configuration.
490 void (*get_link)(struct qed_dev *cdev,
491 struct qed_link_output *if_link);
494 * @brief - drains chip in case Tx completions fail to arrive due to pause.
498 int (*drain)(struct qed_dev *cdev);
501 * @brief update_msglvl - update module debug level
507 void (*update_msglvl)(struct qed_dev *cdev,
511 int (*chain_alloc)(struct qed_dev *cdev,
512 enum qed_chain_use_mode intended_use,
513 enum qed_chain_mode mode,
514 enum qed_chain_cnt_type cnt_type,
517 struct qed_chain *p_chain);
519 void (*chain_free)(struct qed_dev *cdev,
520 struct qed_chain *p_chain);
523 * @brief get_coalesce - Get coalesce parameters in usec
526 * @param rx_coal - Rx coalesce value in usec
527 * @param tx_coal - Tx coalesce value in usec
530 void (*get_coalesce)(struct qed_dev *cdev, u16 *rx_coal, u16 *tx_coal);
533 * @brief set_coalesce - Configure Rx coalesce value in usec
536 * @param rx_coal - Rx coalesce value in usec
537 * @param tx_coal - Tx coalesce value in usec
538 * @param qid - Queue index
539 * @param sb_id - Status Block Id
541 * @return 0 on success, error otherwise.
543 int (*set_coalesce)(struct qed_dev *cdev, u16 rx_coal, u16 tx_coal,
547 * @brief set_led - Configure LED mode
550 * @param mode - LED mode
552 * @return 0 on success, error otherwise.
554 int (*set_led)(struct qed_dev *cdev,
555 enum qed_led_mode mode);
558 #define MASK_FIELD(_name, _value) \
559 ((_value) &= (_name ## _MASK))
561 #define FIELD_VALUE(_name, _value) \
562 ((_value & _name ## _MASK) << _name ## _SHIFT)
564 #define SET_FIELD(value, name, flag) \
566 (value) &= ~(name ## _MASK << name ## _SHIFT); \
567 (value) |= (((u64)flag) << (name ## _SHIFT)); \
570 #define GET_FIELD(value, name) \
571 (((value) >> (name ## _SHIFT)) & name ## _MASK)
573 /* Debug print definitions */
574 #define DP_ERR(cdev, fmt, ...) \
575 pr_err("[%s:%d(%s)]" fmt, \
576 __func__, __LINE__, \
577 DP_NAME(cdev) ? DP_NAME(cdev) : "", \
580 #define DP_NOTICE(cdev, fmt, ...) \
582 if (unlikely((cdev)->dp_level <= QED_LEVEL_NOTICE)) { \
583 pr_notice("[%s:%d(%s)]" fmt, \
584 __func__, __LINE__, \
585 DP_NAME(cdev) ? DP_NAME(cdev) : "", \
591 #define DP_INFO(cdev, fmt, ...) \
593 if (unlikely((cdev)->dp_level <= QED_LEVEL_INFO)) { \
594 pr_notice("[%s:%d(%s)]" fmt, \
595 __func__, __LINE__, \
596 DP_NAME(cdev) ? DP_NAME(cdev) : "", \
601 #define DP_VERBOSE(cdev, module, fmt, ...) \
603 if (unlikely(((cdev)->dp_level <= QED_LEVEL_VERBOSE) && \
604 ((cdev)->dp_module & module))) { \
605 pr_notice("[%s:%d(%s)]" fmt, \
606 __func__, __LINE__, \
607 DP_NAME(cdev) ? DP_NAME(cdev) : "", \
613 QED_LEVEL_VERBOSE = 0x0,
614 QED_LEVEL_INFO = 0x1,
615 QED_LEVEL_NOTICE = 0x2,
619 #define QED_LOG_LEVEL_SHIFT (30)
620 #define QED_LOG_VERBOSE_MASK (0x3fffffff)
621 #define QED_LOG_INFO_MASK (0x40000000)
622 #define QED_LOG_NOTICE_MASK (0x80000000)
625 QED_MSG_SPQ = 0x10000,
626 QED_MSG_STATS = 0x20000,
627 QED_MSG_DCB = 0x40000,
628 QED_MSG_IOV = 0x80000,
629 QED_MSG_SP = 0x100000,
630 QED_MSG_STORAGE = 0x200000,
631 QED_MSG_CXT = 0x800000,
632 QED_MSG_LL2 = 0x1000000,
633 QED_MSG_ILT = 0x2000000,
634 QED_MSG_RDMA = 0x4000000,
635 QED_MSG_DEBUG = 0x8000000,
636 /* to be added...up to 0x8000000 */
645 struct qed_eth_stats {
646 u64 no_buff_discards;
647 u64 packet_too_big_discard;
655 u64 mftag_filter_discards;
656 u64 mac_filter_discards;
663 u64 tx_err_drop_pkts;
664 u64 tpa_coalesced_pkts;
665 u64 tpa_coalesced_events;
667 u64 tpa_not_coalesced_pkts;
668 u64 tpa_coalesced_bytes;
671 u64 rx_64_byte_packets;
672 u64 rx_65_to_127_byte_packets;
673 u64 rx_128_to_255_byte_packets;
674 u64 rx_256_to_511_byte_packets;
675 u64 rx_512_to_1023_byte_packets;
676 u64 rx_1024_to_1518_byte_packets;
677 u64 rx_1519_to_1522_byte_packets;
678 u64 rx_1519_to_2047_byte_packets;
679 u64 rx_2048_to_4095_byte_packets;
680 u64 rx_4096_to_9216_byte_packets;
681 u64 rx_9217_to_16383_byte_packets;
683 u64 rx_mac_crtl_frames;
687 u64 rx_carrier_errors;
688 u64 rx_oversize_packets;
690 u64 rx_undersize_packets;
692 u64 tx_64_byte_packets;
693 u64 tx_65_to_127_byte_packets;
694 u64 tx_128_to_255_byte_packets;
695 u64 tx_256_to_511_byte_packets;
696 u64 tx_512_to_1023_byte_packets;
697 u64 tx_1024_to_1518_byte_packets;
698 u64 tx_1519_to_2047_byte_packets;
699 u64 tx_2048_to_4095_byte_packets;
700 u64 tx_4096_to_9216_byte_packets;
701 u64 tx_9217_to_16383_byte_packets;
704 u64 tx_lpi_entry_count;
705 u64 tx_total_collisions;
709 u64 rx_mac_uc_packets;
710 u64 rx_mac_mc_packets;
711 u64 rx_mac_bc_packets;
712 u64 rx_mac_frames_ok;
714 u64 tx_mac_uc_packets;
715 u64 tx_mac_mc_packets;
716 u64 tx_mac_bc_packets;
717 u64 tx_mac_ctrl_frames;
720 #define QED_SB_IDX 0x0002
723 #define TX_PI(tc) (RX_PI + 1 + tc)
725 struct qed_sb_cnt_info {
731 static inline u16 qed_sb_update_sb_idx(struct qed_sb_info *sb_info)
736 prod = le32_to_cpu(sb_info->sb_virt->prod_index) &
737 STATUS_BLOCK_PROD_INDEX_MASK;
738 if (sb_info->sb_ack != prod) {
739 sb_info->sb_ack = prod;
750 * @brief This function creates an update command for interrupts that is
751 * written to the IGU.
753 * @param sb_info - This is the structure allocated and
754 * initialized per status block. Assumption is
755 * that it was initialized using qed_sb_init
756 * @param int_cmd - Enable/Disable/Nop
757 * @param upd_flg - whether igu consumer should be
760 * @return inline void
762 static inline void qed_sb_ack(struct qed_sb_info *sb_info,
763 enum igu_int_cmd int_cmd,
766 struct igu_prod_cons_update igu_ack = { 0 };
768 igu_ack.sb_id_and_flags =
769 ((sb_info->sb_ack << IGU_PROD_CONS_UPDATE_SB_INDEX_SHIFT) |
770 (upd_flg << IGU_PROD_CONS_UPDATE_UPDATE_FLAG_SHIFT) |
771 (int_cmd << IGU_PROD_CONS_UPDATE_ENABLE_INT_SHIFT) |
772 (IGU_SEG_ACCESS_REG <<
773 IGU_PROD_CONS_UPDATE_SEGMENT_ACCESS_SHIFT));
775 DIRECT_REG_WR(sb_info->igu_addr, igu_ack.sb_id_and_flags);
777 /* Both segments (interrupts & acks) are written to same place address;
778 * Need to guarantee all commands will be received (in-order) by HW.
784 static inline void __internal_ram_wr(void *p_hwfn,
792 for (i = 0; i < size / sizeof(*data); i++)
793 DIRECT_REG_WR(&((u32 __iomem *)addr)[i], data[i]);
796 static inline void internal_ram_wr(void __iomem *addr,
800 __internal_ram_wr(NULL, addr, size, data);
806 QED_RSS_IPV4_TCP = 0x4,
807 QED_RSS_IPV6_TCP = 0x8,
808 QED_RSS_IPV4_UDP = 0x10,
809 QED_RSS_IPV6_UDP = 0x20,
812 #define QED_RSS_IND_TABLE_SIZE 128
813 #define QED_RSS_KEY_SIZE 10 /* size in 32b chunks */