2 * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
37 #include <linux/bitops.h>
38 #include <linux/compiler.h>
39 #include <linux/list.h>
40 #include <linux/mutex.h>
41 #include <linux/netdevice.h>
42 #include <linux/if_vlan.h>
43 #include <linux/net_tstamp.h>
44 #ifdef CONFIG_MLX4_EN_DCB
45 #include <linux/dcbnl.h>
47 #include <linux/cpu_rmap.h>
48 #include <linux/ptp_clock_kernel.h>
50 #include <linux/mlx4/device.h>
51 #include <linux/mlx4/qp.h>
52 #include <linux/mlx4/cq.h>
53 #include <linux/mlx4/srq.h>
54 #include <linux/mlx4/doorbell.h>
55 #include <linux/mlx4/cmd.h>
59 #define DRV_NAME "mlx4_en"
60 #define DRV_VERSION "2.0"
61 #define DRV_RELDATE "Dec 2011"
63 #define MLX4_EN_MSG_LEVEL (NETIF_MSG_LINK | NETIF_MSG_IFDOWN)
70 #define MLX4_EN_PAGE_SHIFT 12
71 #define MLX4_EN_PAGE_SIZE (1 << MLX4_EN_PAGE_SHIFT)
72 #define DEF_RX_RINGS 16
73 #define MAX_RX_RINGS 128
74 #define MIN_RX_RINGS 4
76 #define HEADROOM (2048 / TXBB_SIZE + 1)
77 #define STAMP_STRIDE 64
78 #define STAMP_DWORDS (STAMP_STRIDE / 4)
79 #define STAMP_SHIFT 31
80 #define STAMP_VAL 0x7fffffff
81 #define STATS_DELAY (HZ / 4)
82 #define SERVICE_TASK_DELAY (HZ / 4)
83 #define MAX_NUM_OF_FS_RULES 256
85 #define MLX4_EN_FILTER_HASH_SHIFT 4
86 #define MLX4_EN_FILTER_EXPIRY_QUOTA 60
88 /* Typical TSO descriptor with 16 gather entries is 352 bytes... */
89 #define MAX_DESC_SIZE 512
90 #define MAX_DESC_TXBBS (MAX_DESC_SIZE / TXBB_SIZE)
93 * OS related constants and tunables
96 #define MLX4_EN_WATCHDOG_TIMEOUT (15 * HZ)
98 /* Use the maximum between 16384 and a single page */
99 #define MLX4_EN_ALLOC_SIZE PAGE_ALIGN(16384)
101 #define MLX4_EN_ALLOC_PREFER_ORDER PAGE_ALLOC_COSTLY_ORDER
103 /* Receive fragment sizes; we use at most 3 fragments (for 9600 byte MTU
104 * and 4K allocations) */
106 FRAG_SZ0
= 1536 - NET_IP_ALIGN
,
109 FRAG_SZ3
= MLX4_EN_ALLOC_SIZE
111 #define MLX4_EN_MAX_RX_FRAGS 4
113 /* Maximum ring sizes */
114 #define MLX4_EN_MAX_TX_SIZE 8192
115 #define MLX4_EN_MAX_RX_SIZE 8192
117 /* Minimum ring size for our page-allocation scheme to work */
118 #define MLX4_EN_MIN_RX_SIZE (MLX4_EN_ALLOC_SIZE / SMP_CACHE_BYTES)
119 #define MLX4_EN_MIN_TX_SIZE (4096 / TXBB_SIZE)
121 #define MLX4_EN_SMALL_PKT_SIZE 64
122 #define MLX4_EN_MAX_TX_RING_P_UP 32
123 #define MLX4_EN_NUM_UP 8
124 #define MLX4_EN_DEF_TX_RING_SIZE 512
125 #define MLX4_EN_DEF_RX_RING_SIZE 1024
126 #define MAX_TX_RINGS (MLX4_EN_MAX_TX_RING_P_UP * \
129 /* Target number of packets to coalesce with interrupt moderation */
130 #define MLX4_EN_RX_COAL_TARGET 44
131 #define MLX4_EN_RX_COAL_TIME 0x10
133 #define MLX4_EN_TX_COAL_PKTS 16
134 #define MLX4_EN_TX_COAL_TIME 0x10
136 #define MLX4_EN_RX_RATE_LOW 400000
137 #define MLX4_EN_RX_COAL_TIME_LOW 0
138 #define MLX4_EN_RX_RATE_HIGH 450000
139 #define MLX4_EN_RX_COAL_TIME_HIGH 128
140 #define MLX4_EN_RX_SIZE_THRESH 1024
141 #define MLX4_EN_RX_RATE_THRESH (1000000 / MLX4_EN_RX_COAL_TIME_HIGH)
142 #define MLX4_EN_SAMPLE_INTERVAL 0
143 #define MLX4_EN_AVG_PKT_SMALL 256
145 #define MLX4_EN_AUTO_CONF 0xffff
147 #define MLX4_EN_DEF_RX_PAUSE 1
148 #define MLX4_EN_DEF_TX_PAUSE 1
150 /* Interval between successive polls in the Tx routine when polling is used
151 instead of interrupts (in per-core Tx rings) - should be power of 2 */
152 #define MLX4_EN_TX_POLL_MODER 16
153 #define MLX4_EN_TX_POLL_TIMEOUT (HZ / 4)
155 #define ETH_LLC_SNAP_SIZE 8
157 #define SMALL_PACKET_SIZE (256 - NET_IP_ALIGN)
158 #define HEADER_COPY_SIZE (128 - NET_IP_ALIGN)
159 #define MLX4_LOOPBACK_TEST_PAYLOAD (HEADER_COPY_SIZE - ETH_HLEN)
161 #define MLX4_EN_MIN_MTU 46
162 #define ETH_BCAST 0xffffffffffffULL
164 #define MLX4_EN_LOOPBACK_RETRIES 5
165 #define MLX4_EN_LOOPBACK_TIMEOUT 100
167 #ifdef MLX4_EN_PERF_STAT
168 /* Number of samples to 'average' */
170 #define AVG_FACTOR 1024
171 #define NUM_PERF_STATS NUM_PERF_COUNTERS
173 #define INC_PERF_COUNTER(cnt) (++(cnt))
174 #define ADD_PERF_COUNTER(cnt, add) ((cnt) += (add))
175 #define AVG_PERF_COUNTER(cnt, sample) \
176 ((cnt) = ((cnt) * (AVG_SIZE - 1) + (sample) * AVG_FACTOR) / AVG_SIZE)
177 #define GET_PERF_COUNTER(cnt) (cnt)
178 #define GET_AVG_PERF_COUNTER(cnt) ((cnt) / AVG_FACTOR)
182 #define NUM_PERF_STATS 0
183 #define INC_PERF_COUNTER(cnt) do {} while (0)
184 #define ADD_PERF_COUNTER(cnt, add) do {} while (0)
185 #define AVG_PERF_COUNTER(cnt, sample) do {} while (0)
186 #define GET_PERF_COUNTER(cnt) (0)
187 #define GET_AVG_PERF_COUNTER(cnt) (0)
188 #endif /* MLX4_EN_PERF_STAT */
203 #define ROUNDUP_LOG2(x) ilog2(roundup_pow_of_two(x))
204 #define XNOR(x, y) (!(x) == !(y))
207 struct mlx4_en_tx_info
{
218 #define MLX4_EN_BIT_DESC_OWN 0x80000000
219 #define CTRL_SIZE sizeof(struct mlx4_wqe_ctrl_seg)
220 #define MLX4_EN_MEMTYPE_PAD 0x100
221 #define DS_SIZE sizeof(struct mlx4_wqe_data_seg)
224 struct mlx4_en_tx_desc
{
225 struct mlx4_wqe_ctrl_seg ctrl
;
227 struct mlx4_wqe_data_seg data
; /* at least one data segment */
228 struct mlx4_wqe_lso_seg lso
;
229 struct mlx4_wqe_inline_seg inl
;
233 #define MLX4_EN_USE_SRQ 0x01000000
235 #define MLX4_EN_CX3_LOW_ID 0x1000
236 #define MLX4_EN_CX3_HIGH_ID 0x1005
238 struct mlx4_en_rx_alloc
{
245 struct mlx4_en_tx_ring
{
246 struct mlx4_hwq_resources wqres
;
247 u32 size
; /* number of TXBBs */
250 u16 cqn
; /* index of port CQ associated with this ring */
257 struct mlx4_en_tx_info
*tx_info
;
260 cpumask_t affinity_mask
;
263 struct mlx4_qp_context context
;
265 enum mlx4_qp_state qp_state
;
266 struct mlx4_srq dummy
;
268 unsigned long packets
;
269 unsigned long tx_csum
;
272 struct netdev_queue
*tx_queue
;
273 int hwtstamp_tx_type
;
276 struct mlx4_en_rx_desc
{
277 /* actual number of entries depends on rx ring stride */
278 struct mlx4_wqe_data_seg data
[0];
281 struct mlx4_en_rx_ring
{
282 struct mlx4_hwq_resources wqres
;
283 struct mlx4_en_rx_alloc page_alloc
[MLX4_EN_MAX_RX_FRAGS
];
284 u32 size
; /* number of Rx descs*/
289 u16 cqn
; /* index of port CQ associated with this ring */
297 unsigned long packets
;
298 #ifdef CONFIG_NET_RX_BUSY_POLL
299 unsigned long yields
;
300 unsigned long misses
;
301 unsigned long cleaned
;
303 unsigned long csum_ok
;
304 unsigned long csum_none
;
305 int hwtstamp_rx_filter
;
310 struct mlx4_hwq_resources wqres
;
313 struct net_device
*dev
;
314 struct napi_struct napi
;
321 struct mlx4_cqe
*buf
;
322 #define MLX4_EN_OPCODE_ERROR 0x1e
324 #ifdef CONFIG_NET_RX_BUSY_POLL
326 #define MLX4_EN_CQ_STATE_IDLE 0
327 #define MLX4_EN_CQ_STATE_NAPI 1 /* NAPI owns this CQ */
328 #define MLX4_EN_CQ_STATE_POLL 2 /* poll owns this CQ */
329 #define MLX4_CQ_LOCKED (MLX4_EN_CQ_STATE_NAPI | MLX4_EN_CQ_STATE_POLL)
330 #define MLX4_EN_CQ_STATE_NAPI_YIELD 4 /* NAPI yielded this CQ */
331 #define MLX4_EN_CQ_STATE_POLL_YIELD 8 /* poll yielded this CQ */
332 #define CQ_YIELD (MLX4_EN_CQ_STATE_NAPI_YIELD | MLX4_EN_CQ_STATE_POLL_YIELD)
333 #define CQ_USER_PEND (MLX4_EN_CQ_STATE_POLL | MLX4_EN_CQ_STATE_POLL_YIELD)
334 spinlock_t poll_lock
; /* protects from LLS/napi conflicts */
335 #endif /* CONFIG_NET_RX_BUSY_POLL */
338 struct mlx4_en_port_profile
{
351 struct mlx4_en_profile
{
358 u8 num_tx_rings_p_up
;
359 struct mlx4_en_port_profile prof
[MLX4_MAX_PORTS
+ 1];
363 struct mlx4_dev
*dev
;
364 struct pci_dev
*pdev
;
365 struct mutex state_lock
;
366 struct net_device
*pndev
[MLX4_MAX_PORTS
+ 1];
369 struct mlx4_en_profile profile
;
371 struct workqueue_struct
*workqueue
;
372 struct device
*dma_device
;
373 void __iomem
*uar_map
;
374 struct mlx4_uar priv_uar
;
378 u8 mac_removed
[MLX4_MAX_PORTS
+ 1];
381 struct cyclecounter cycles
;
382 struct timecounter clock
;
383 unsigned long last_overflow_check
;
384 unsigned long overflow_period
;
385 struct ptp_clock
*ptp_clock
;
386 struct ptp_clock_info ptp_clock_info
;
390 struct mlx4_en_rss_map
{
392 struct mlx4_qp qps
[MAX_RX_RINGS
];
393 enum mlx4_qp_state state
[MAX_RX_RINGS
];
394 struct mlx4_qp indir_qp
;
395 enum mlx4_qp_state indir_state
;
398 struct mlx4_en_port_state
{
404 struct mlx4_en_pkt_stats
{
405 unsigned long broadcast
;
406 unsigned long rx_prio
[8];
407 unsigned long tx_prio
[8];
408 #define NUM_PKT_STATS 17
411 struct mlx4_en_port_stats
{
412 unsigned long tso_packets
;
413 unsigned long queue_stopped
;
414 unsigned long wake_queue
;
415 unsigned long tx_timeout
;
416 unsigned long rx_alloc_failed
;
417 unsigned long rx_chksum_good
;
418 unsigned long rx_chksum_none
;
419 unsigned long tx_chksum_offload
;
420 #define NUM_PORT_STATS 8
423 struct mlx4_en_perf_stats
{
430 #define NUM_PERF_COUNTERS 6
433 enum mlx4_en_mclist_act
{
439 struct mlx4_en_mc_list
{
440 struct list_head list
;
441 enum mlx4_en_mclist_act action
;
447 struct mlx4_en_frag_info
{
449 u16 frag_prefix_size
;
454 #ifdef CONFIG_MLX4_EN_DCB
455 /* Minimal TC BW - setting to 0 will block traffic */
456 #define MLX4_EN_BW_MIN 1
457 #define MLX4_EN_BW_MAX 100 /* Utilize 100% of the line */
459 #define MLX4_EN_TC_ETS 7
463 struct ethtool_flow_id
{
464 struct list_head list
;
465 struct ethtool_rx_flow_spec flow_spec
;
470 MLX4_EN_FLAG_PROMISC
= (1 << 0),
471 MLX4_EN_FLAG_MC_PROMISC
= (1 << 1),
472 /* whether we need to enable hardware loopback by putting dmac
475 MLX4_EN_FLAG_ENABLE_HW_LOOPBACK
= (1 << 2),
476 /* whether we need to drop packets that hardware loopback-ed */
477 MLX4_EN_FLAG_RX_FILTER_NEEDED
= (1 << 3),
478 MLX4_EN_FLAG_FORCE_PROMISC
= (1 << 4)
481 #define MLX4_EN_MAC_HASH_SIZE (1 << BITS_PER_BYTE)
482 #define MLX4_EN_MAC_HASH_IDX 5
484 struct mlx4_en_priv
{
485 struct mlx4_en_dev
*mdev
;
486 struct mlx4_en_port_profile
*prof
;
487 struct net_device
*dev
;
488 unsigned long active_vlans
[BITS_TO_LONGS(VLAN_N_VID
)];
489 struct net_device_stats stats
;
490 struct net_device_stats ret_stats
;
491 struct mlx4_en_port_state port_state
;
492 spinlock_t stats_lock
;
493 struct ethtool_flow_id ethtool_rules
[MAX_NUM_OF_FS_RULES
];
494 /* To allow rules removal while port is going down */
495 struct list_head ethtool_list
;
497 unsigned long last_moder_packets
[MAX_RX_RINGS
];
498 unsigned long last_moder_tx_packets
;
499 unsigned long last_moder_bytes
[MAX_RX_RINGS
];
500 unsigned long last_moder_jiffies
;
501 int last_moder_time
[MAX_RX_RINGS
];
511 u16 adaptive_rx_coal
;
514 u32 validate_loopback
;
516 struct mlx4_hwq_resources res
;
524 unsigned char prev_mac
[ETH_ALEN
+ 2];
530 struct mlx4_en_rss_map rss_map
;
533 u8 num_tx_rings_p_up
;
537 struct mlx4_en_frag_info frag_info
[MLX4_EN_MAX_RX_FRAGS
];
541 struct mlx4_en_tx_ring
**tx_ring
;
542 struct mlx4_en_rx_ring
*rx_ring
[MAX_RX_RINGS
];
543 struct mlx4_en_cq
**tx_cq
;
544 struct mlx4_en_cq
*rx_cq
[MAX_RX_RINGS
];
545 struct mlx4_qp drop_qp
;
546 struct work_struct rx_mode_task
;
547 struct work_struct watchdog_task
;
548 struct work_struct linkstate_task
;
549 struct delayed_work stats_task
;
550 struct delayed_work service_task
;
551 struct mlx4_en_perf_stats pstats
;
552 struct mlx4_en_pkt_stats pkstats
;
553 struct mlx4_en_port_stats port_stats
;
555 struct list_head mc_list
;
556 struct list_head curr_list
;
558 struct mlx4_en_stat_out_mbox hw_stats
;
563 struct hlist_head mac_hash
[MLX4_EN_MAC_HASH_SIZE
];
564 struct hwtstamp_config hwtstamp_config
;
566 #ifdef CONFIG_MLX4_EN_DCB
568 u16 maxrate
[IEEE_8021QAZ_MAX_TCS
];
570 #ifdef CONFIG_RFS_ACCEL
571 spinlock_t filters_lock
;
573 struct list_head filters
;
574 struct hlist_head filter_hash
[1 << MLX4_EN_FILTER_HASH_SHIFT
];
580 MLX4_EN_WOL_MAGIC
= (1ULL << 61),
581 MLX4_EN_WOL_ENABLED
= (1ULL << 62),
584 struct mlx4_mac_entry
{
585 struct hlist_node hlist
;
586 unsigned char mac
[ETH_ALEN
+ 2];
591 #ifdef CONFIG_NET_RX_BUSY_POLL
592 static inline void mlx4_en_cq_init_lock(struct mlx4_en_cq
*cq
)
594 spin_lock_init(&cq
->poll_lock
);
595 cq
->state
= MLX4_EN_CQ_STATE_IDLE
;
598 /* called from the device poll rutine to get ownership of a cq */
599 static inline bool mlx4_en_cq_lock_napi(struct mlx4_en_cq
*cq
)
602 spin_lock(&cq
->poll_lock
);
603 if (cq
->state
& MLX4_CQ_LOCKED
) {
604 WARN_ON(cq
->state
& MLX4_EN_CQ_STATE_NAPI
);
605 cq
->state
|= MLX4_EN_CQ_STATE_NAPI_YIELD
;
608 /* we don't care if someone yielded */
609 cq
->state
= MLX4_EN_CQ_STATE_NAPI
;
610 spin_unlock(&cq
->poll_lock
);
614 /* returns true is someone tried to get the cq while napi had it */
615 static inline bool mlx4_en_cq_unlock_napi(struct mlx4_en_cq
*cq
)
618 spin_lock(&cq
->poll_lock
);
619 WARN_ON(cq
->state
& (MLX4_EN_CQ_STATE_POLL
|
620 MLX4_EN_CQ_STATE_NAPI_YIELD
));
622 if (cq
->state
& MLX4_EN_CQ_STATE_POLL_YIELD
)
624 cq
->state
= MLX4_EN_CQ_STATE_IDLE
;
625 spin_unlock(&cq
->poll_lock
);
629 /* called from mlx4_en_low_latency_poll() */
630 static inline bool mlx4_en_cq_lock_poll(struct mlx4_en_cq
*cq
)
633 spin_lock_bh(&cq
->poll_lock
);
634 if ((cq
->state
& MLX4_CQ_LOCKED
)) {
635 struct net_device
*dev
= cq
->dev
;
636 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
637 struct mlx4_en_rx_ring
*rx_ring
= priv
->rx_ring
[cq
->ring
];
639 cq
->state
|= MLX4_EN_CQ_STATE_POLL_YIELD
;
643 /* preserve yield marks */
644 cq
->state
|= MLX4_EN_CQ_STATE_POLL
;
645 spin_unlock_bh(&cq
->poll_lock
);
649 /* returns true if someone tried to get the cq while it was locked */
650 static inline bool mlx4_en_cq_unlock_poll(struct mlx4_en_cq
*cq
)
653 spin_lock_bh(&cq
->poll_lock
);
654 WARN_ON(cq
->state
& (MLX4_EN_CQ_STATE_NAPI
));
656 if (cq
->state
& MLX4_EN_CQ_STATE_POLL_YIELD
)
658 cq
->state
= MLX4_EN_CQ_STATE_IDLE
;
659 spin_unlock_bh(&cq
->poll_lock
);
663 /* true if a socket is polling, even if it did not get the lock */
664 static inline bool mlx4_en_cq_busy_polling(struct mlx4_en_cq
*cq
)
666 WARN_ON(!(cq
->state
& MLX4_CQ_LOCKED
));
667 return cq
->state
& CQ_USER_PEND
;
670 static inline void mlx4_en_cq_init_lock(struct mlx4_en_cq
*cq
)
674 static inline bool mlx4_en_cq_lock_napi(struct mlx4_en_cq
*cq
)
679 static inline bool mlx4_en_cq_unlock_napi(struct mlx4_en_cq
*cq
)
684 static inline bool mlx4_en_cq_lock_poll(struct mlx4_en_cq
*cq
)
689 static inline bool mlx4_en_cq_unlock_poll(struct mlx4_en_cq
*cq
)
694 static inline bool mlx4_en_cq_busy_polling(struct mlx4_en_cq
*cq
)
698 #endif /* CONFIG_NET_RX_BUSY_POLL */
700 #define MLX4_EN_WOL_DO_MODIFY (1ULL << 63)
702 void mlx4_en_update_loopback_state(struct net_device
*dev
,
703 netdev_features_t features
);
705 void mlx4_en_destroy_netdev(struct net_device
*dev
);
706 int mlx4_en_init_netdev(struct mlx4_en_dev
*mdev
, int port
,
707 struct mlx4_en_port_profile
*prof
);
709 int mlx4_en_start_port(struct net_device
*dev
);
710 void mlx4_en_stop_port(struct net_device
*dev
, int detach
);
712 void mlx4_en_free_resources(struct mlx4_en_priv
*priv
);
713 int mlx4_en_alloc_resources(struct mlx4_en_priv
*priv
);
715 int mlx4_en_create_cq(struct mlx4_en_priv
*priv
, struct mlx4_en_cq
**pcq
,
716 int entries
, int ring
, enum cq_type mode
, int node
);
717 void mlx4_en_destroy_cq(struct mlx4_en_priv
*priv
, struct mlx4_en_cq
**pcq
);
718 int mlx4_en_activate_cq(struct mlx4_en_priv
*priv
, struct mlx4_en_cq
*cq
,
720 void mlx4_en_deactivate_cq(struct mlx4_en_priv
*priv
, struct mlx4_en_cq
*cq
);
721 int mlx4_en_set_cq_moder(struct mlx4_en_priv
*priv
, struct mlx4_en_cq
*cq
);
722 int mlx4_en_arm_cq(struct mlx4_en_priv
*priv
, struct mlx4_en_cq
*cq
);
724 void mlx4_en_tx_irq(struct mlx4_cq
*mcq
);
725 u16
mlx4_en_select_queue(struct net_device
*dev
, struct sk_buff
*skb
,
727 netdev_tx_t
mlx4_en_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
729 int mlx4_en_create_tx_ring(struct mlx4_en_priv
*priv
,
730 struct mlx4_en_tx_ring
**pring
,
731 int qpn
, u32 size
, u16 stride
,
732 int node
, int queue_index
);
733 void mlx4_en_destroy_tx_ring(struct mlx4_en_priv
*priv
,
734 struct mlx4_en_tx_ring
**pring
);
735 int mlx4_en_activate_tx_ring(struct mlx4_en_priv
*priv
,
736 struct mlx4_en_tx_ring
*ring
,
737 int cq
, int user_prio
);
738 void mlx4_en_deactivate_tx_ring(struct mlx4_en_priv
*priv
,
739 struct mlx4_en_tx_ring
*ring
);
741 int mlx4_en_create_rx_ring(struct mlx4_en_priv
*priv
,
742 struct mlx4_en_rx_ring
**pring
,
743 u32 size
, u16 stride
, int node
);
744 void mlx4_en_destroy_rx_ring(struct mlx4_en_priv
*priv
,
745 struct mlx4_en_rx_ring
**pring
,
746 u32 size
, u16 stride
);
747 int mlx4_en_activate_rx_rings(struct mlx4_en_priv
*priv
);
748 void mlx4_en_deactivate_rx_ring(struct mlx4_en_priv
*priv
,
749 struct mlx4_en_rx_ring
*ring
);
750 int mlx4_en_process_rx_cq(struct net_device
*dev
,
751 struct mlx4_en_cq
*cq
,
753 int mlx4_en_poll_rx_cq(struct napi_struct
*napi
, int budget
);
754 int mlx4_en_poll_tx_cq(struct napi_struct
*napi
, int budget
);
755 void mlx4_en_fill_qp_context(struct mlx4_en_priv
*priv
, int size
, int stride
,
756 int is_tx
, int rss
, int qpn
, int cqn
, int user_prio
,
757 struct mlx4_qp_context
*context
);
758 void mlx4_en_sqp_event(struct mlx4_qp
*qp
, enum mlx4_event event
);
759 int mlx4_en_map_buffer(struct mlx4_buf
*buf
);
760 void mlx4_en_unmap_buffer(struct mlx4_buf
*buf
);
762 void mlx4_en_calc_rx_buf(struct net_device
*dev
);
763 int mlx4_en_config_rss_steer(struct mlx4_en_priv
*priv
);
764 void mlx4_en_release_rss_steer(struct mlx4_en_priv
*priv
);
765 int mlx4_en_create_drop_qp(struct mlx4_en_priv
*priv
);
766 void mlx4_en_destroy_drop_qp(struct mlx4_en_priv
*priv
);
767 int mlx4_en_free_tx_buf(struct net_device
*dev
, struct mlx4_en_tx_ring
*ring
);
768 void mlx4_en_rx_irq(struct mlx4_cq
*mcq
);
770 int mlx4_SET_MCAST_FLTR(struct mlx4_dev
*dev
, u8 port
, u64 mac
, u64 clear
, u8 mode
);
771 int mlx4_SET_VLAN_FLTR(struct mlx4_dev
*dev
, struct mlx4_en_priv
*priv
);
773 int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev
*mdev
, u8 port
, u8 reset
);
774 int mlx4_en_QUERY_PORT(struct mlx4_en_dev
*mdev
, u8 port
);
776 #ifdef CONFIG_MLX4_EN_DCB
777 extern const struct dcbnl_rtnl_ops mlx4_en_dcbnl_ops
;
778 extern const struct dcbnl_rtnl_ops mlx4_en_dcbnl_pfc_ops
;
781 int mlx4_en_setup_tc(struct net_device
*dev
, u8 up
);
783 #ifdef CONFIG_RFS_ACCEL
784 void mlx4_en_cleanup_filters(struct mlx4_en_priv
*priv
);
787 #define MLX4_EN_NUM_SELF_TEST 5
788 void mlx4_en_ex_selftest(struct net_device
*dev
, u32
*flags
, u64
*buf
);
789 u64
mlx4_en_mac_to_u64(u8
*addr
);
790 void mlx4_en_ptp_overflow_check(struct mlx4_en_dev
*mdev
);
793 * Functions for time stamping
795 u64
mlx4_en_get_cqe_ts(struct mlx4_cqe
*cqe
);
796 void mlx4_en_fill_hwtstamps(struct mlx4_en_dev
*mdev
,
797 struct skb_shared_hwtstamps
*hwts
,
799 void mlx4_en_init_timestamp(struct mlx4_en_dev
*mdev
);
800 void mlx4_en_remove_timestamp(struct mlx4_en_dev
*mdev
);
801 int mlx4_en_timestamp_config(struct net_device
*dev
,
807 extern const struct ethtool_ops mlx4_en_ethtool_ops
;
812 * printk / logging functions
816 int en_print(const char *level
, const struct mlx4_en_priv
*priv
,
817 const char *format
, ...);
819 #define en_dbg(mlevel, priv, format, arg...) \
821 if (NETIF_MSG_##mlevel & priv->msg_enable) \
822 en_print(KERN_DEBUG, priv, format, ##arg); \
824 #define en_warn(priv, format, arg...) \
825 en_print(KERN_WARNING, priv, format, ##arg)
826 #define en_err(priv, format, arg...) \
827 en_print(KERN_ERR, priv, format, ##arg)
828 #define en_info(priv, format, arg...) \
829 en_print(KERN_INFO, priv, format, ## arg)
831 #define mlx4_err(mdev, format, arg...) \
832 pr_err("%s %s: " format, DRV_NAME, \
833 dev_name(&mdev->pdev->dev), ##arg)
834 #define mlx4_info(mdev, format, arg...) \
835 pr_info("%s %s: " format, DRV_NAME, \
836 dev_name(&mdev->pdev->dev), ##arg)
837 #define mlx4_warn(mdev, format, arg...) \
838 pr_warning("%s %s: " format, DRV_NAME, \
839 dev_name(&mdev->pdev->dev), ##arg)