2 * This file is part of the Chelsio T4 Ethernet driver for Linux.
4 * Copyright (c) 2003-2014 Chelsio Communications, Inc. All rights reserved.
6 * This software is available to you under a choice of one of two
7 * licenses. You may choose to be licensed under the terms of the GNU
8 * General Public License (GPL) Version 2, available from the file
9 * COPYING in the main directory of this source tree, or the
10 * OpenIB.org BSD license below:
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
20 * - Redistributions in binary form must reproduce the above
21 * copyright notice, this list of conditions and the following
22 * disclaimer in the documentation and/or other materials
23 * provided with the distribution.
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
40 #include <linux/bitops.h>
41 #include <linux/cache.h>
42 #include <linux/interrupt.h>
43 #include <linux/list.h>
44 #include <linux/netdevice.h>
45 #include <linux/pci.h>
46 #include <linux/spinlock.h>
47 #include <linux/timer.h>
48 #include <linux/vmalloc.h>
50 #include "cxgb4_uld.h"
52 #define T4FW_VERSION_MAJOR 0x01
53 #define T4FW_VERSION_MINOR 0x0B
54 #define T4FW_VERSION_MICRO 0x1B
55 #define T4FW_VERSION_BUILD 0x00
57 #define T5FW_VERSION_MAJOR 0x01
58 #define T5FW_VERSION_MINOR 0x0B
59 #define T5FW_VERSION_MICRO 0x1B
60 #define T5FW_VERSION_BUILD 0x00
62 #define CH_WARN(adap, fmt, ...) dev_warn(adap->pdev_dev, fmt, ## __VA_ARGS__)
65 MAX_NPORTS = 4, /* max # of ports */
66 SERNUM_LEN = 24, /* Serial # length */
67 EC_LEN = 16, /* E/C length */
68 ID_LEN = 16, /* ID length */
69 PN_LEN = 16, /* Part Number length */
81 MEMWIN0_APERTURE = 2048,
82 MEMWIN0_BASE = 0x1b800,
83 MEMWIN1_APERTURE = 32768,
84 MEMWIN1_BASE = 0x28000,
85 MEMWIN1_BASE_T5 = 0x52000,
86 MEMWIN2_APERTURE = 65536,
87 MEMWIN2_BASE = 0x30000,
88 MEMWIN2_APERTURE_T5 = 131072,
89 MEMWIN2_BASE_T5 = 0x60000,
107 PAUSE_AUTONEG = 1 << 2
111 u64 tx_octets; /* total # of octets in good frames */
112 u64 tx_frames; /* all good frames */
113 u64 tx_bcast_frames; /* all broadcast frames */
114 u64 tx_mcast_frames; /* all multicast frames */
115 u64 tx_ucast_frames; /* all unicast frames */
116 u64 tx_error_frames; /* all error frames */
118 u64 tx_frames_64; /* # of Tx frames in a particular range */
119 u64 tx_frames_65_127;
120 u64 tx_frames_128_255;
121 u64 tx_frames_256_511;
122 u64 tx_frames_512_1023;
123 u64 tx_frames_1024_1518;
124 u64 tx_frames_1519_max;
126 u64 tx_drop; /* # of dropped Tx frames */
127 u64 tx_pause; /* # of transmitted pause frames */
128 u64 tx_ppp0; /* # of transmitted PPP prio 0 frames */
129 u64 tx_ppp1; /* # of transmitted PPP prio 1 frames */
130 u64 tx_ppp2; /* # of transmitted PPP prio 2 frames */
131 u64 tx_ppp3; /* # of transmitted PPP prio 3 frames */
132 u64 tx_ppp4; /* # of transmitted PPP prio 4 frames */
133 u64 tx_ppp5; /* # of transmitted PPP prio 5 frames */
134 u64 tx_ppp6; /* # of transmitted PPP prio 6 frames */
135 u64 tx_ppp7; /* # of transmitted PPP prio 7 frames */
137 u64 rx_octets; /* total # of octets in good frames */
138 u64 rx_frames; /* all good frames */
139 u64 rx_bcast_frames; /* all broadcast frames */
140 u64 rx_mcast_frames; /* all multicast frames */
141 u64 rx_ucast_frames; /* all unicast frames */
142 u64 rx_too_long; /* # of frames exceeding MTU */
143 u64 rx_jabber; /* # of jabber frames */
144 u64 rx_fcs_err; /* # of received frames with bad FCS */
145 u64 rx_len_err; /* # of received frames with length error */
146 u64 rx_symbol_err; /* symbol errors */
147 u64 rx_runt; /* # of short frames */
149 u64 rx_frames_64; /* # of Rx frames in a particular range */
150 u64 rx_frames_65_127;
151 u64 rx_frames_128_255;
152 u64 rx_frames_256_511;
153 u64 rx_frames_512_1023;
154 u64 rx_frames_1024_1518;
155 u64 rx_frames_1519_max;
157 u64 rx_pause; /* # of received pause frames */
158 u64 rx_ppp0; /* # of received PPP prio 0 frames */
159 u64 rx_ppp1; /* # of received PPP prio 1 frames */
160 u64 rx_ppp2; /* # of received PPP prio 2 frames */
161 u64 rx_ppp3; /* # of received PPP prio 3 frames */
162 u64 rx_ppp4; /* # of received PPP prio 4 frames */
163 u64 rx_ppp5; /* # of received PPP prio 5 frames */
164 u64 rx_ppp6; /* # of received PPP prio 6 frames */
165 u64 rx_ppp7; /* # of received PPP prio 7 frames */
167 u64 rx_ovflow0; /* drops due to buffer-group 0 overflows */
168 u64 rx_ovflow1; /* drops due to buffer-group 1 overflows */
169 u64 rx_ovflow2; /* drops due to buffer-group 2 overflows */
170 u64 rx_ovflow3; /* drops due to buffer-group 3 overflows */
171 u64 rx_trunc0; /* buffer-group 0 truncated packets */
172 u64 rx_trunc1; /* buffer-group 1 truncated packets */
173 u64 rx_trunc2; /* buffer-group 2 truncated packets */
174 u64 rx_trunc3; /* buffer-group 3 truncated packets */
177 struct lb_port_stats {
190 u64 frames_1024_1518;
205 struct tp_tcp_stats {
212 struct tp_err_stats {
217 u32 ofldChanDrops[4];
219 u32 ofldVlanDrops[4];
226 unsigned int ntxchan; /* # of Tx channels */
227 unsigned int tre; /* log2 of core clocks per TP tick */
228 unsigned short tx_modq_map; /* TX modulation scheduler queue to */
231 uint32_t dack_re; /* DACK timer resolution */
232 unsigned short tx_modq[NCHAN]; /* channel to modulation queue map */
234 u32 vlan_pri_map; /* cached TP_VLAN_PRI_MAP */
235 u32 ingress_config; /* cached TP_INGRESS_CONFIG */
237 /* TP_VLAN_PRI_MAP Compressed Filter Tuple field offsets. This is a
238 * subset of the set of fields which may be present in the Compressed
239 * Filter Tuple portion of filters and TCP TCB connections. The
240 * fields which are present are controlled by the TP_VLAN_PRI_MAP.
241 * Since a variable number of fields may or may not be present, their
242 * shifted field positions within the Compressed Filter Tuple may
243 * vary, or not even be present if the field isn't selected in
244 * TP_VLAN_PRI_MAP. Since some of these fields are needed in various
245 * places we store their offsets here, or a -1 if the field isn't
257 u8 sn[SERNUM_LEN + 1];
267 #define CHELSIO_CHIP_CODE(version, revision) (((version) << 4) | (revision))
268 #define CHELSIO_CHIP_FPGA 0x100
269 #define CHELSIO_CHIP_VERSION(code) (((code) >> 4) & 0xf)
270 #define CHELSIO_CHIP_RELEASE(code) ((code) & 0xf)
272 #define CHELSIO_T4 0x4
273 #define CHELSIO_T5 0x5
276 T4_A1 = CHELSIO_CHIP_CODE(CHELSIO_T4, 1),
277 T4_A2 = CHELSIO_CHIP_CODE(CHELSIO_T4, 2),
278 T4_FIRST_REV = T4_A1,
281 T5_A0 = CHELSIO_CHIP_CODE(CHELSIO_T5, 0),
282 T5_A1 = CHELSIO_CHIP_CODE(CHELSIO_T5, 1),
283 T5_FIRST_REV = T5_A0,
287 struct adapter_params {
289 struct vpd_params vpd;
290 struct pci_params pci;
292 unsigned int sf_size; /* serial flash size in bytes */
293 unsigned int sf_nsec; /* # of flash sectors */
294 unsigned int sf_fw_start; /* start of FW image in flash */
296 unsigned int fw_vers;
297 unsigned int tp_vers;
300 unsigned short mtus[NMTUS];
301 unsigned short a_wnd[NCCTRL_WIN];
302 unsigned short b_wnd[NCCTRL_WIN];
304 unsigned char nports; /* # of ethernet ports */
305 unsigned char portvec;
306 enum chip_type chip; /* chip code */
307 unsigned char offload;
309 unsigned char bypass;
311 unsigned int ofldq_wr_cred;
312 bool ulptx_memwrite_dsgl; /* use of T5 DSGL allowed */
314 unsigned int max_ordird_qp; /* Max read depth per RDMA QP */
315 unsigned int max_ird_adapter; /* Max read depth per adapter */
318 #include "t4fw_api.h"
320 #define FW_VERSION(chip) ( \
321 FW_HDR_FW_VER_MAJOR_GET(chip##FW_VERSION_MAJOR) | \
322 FW_HDR_FW_VER_MINOR_GET(chip##FW_VERSION_MINOR) | \
323 FW_HDR_FW_VER_MICRO_GET(chip##FW_VERSION_MICRO) | \
324 FW_HDR_FW_VER_BUILD_GET(chip##FW_VERSION_BUILD))
325 #define FW_INTFVER(chip, intf) (FW_HDR_INTFVER_##intf)
331 struct fw_hdr fw_hdr;
335 struct trace_params {
336 u32 data[TRACE_LEN / 4];
337 u32 mask[TRACE_LEN / 4];
338 unsigned short snap_len;
339 unsigned short min_len;
340 unsigned char skip_ofst;
341 unsigned char skip_len;
342 unsigned char invert;
347 unsigned short supported; /* link capabilities */
348 unsigned short advertising; /* advertised capabilities */
349 unsigned short requested_speed; /* speed user has requested */
350 unsigned short speed; /* actual link speed */
351 unsigned char requested_fc; /* flow control user has requested */
352 unsigned char fc; /* actual link flow control */
353 unsigned char autoneg; /* autonegotiating? */
354 unsigned char link_ok; /* link up? */
357 #define FW_LEN16(fw_struct) FW_CMD_LEN16(sizeof(fw_struct) / 16)
360 MAX_ETH_QSETS = 32, /* # of Ethernet Tx/Rx queue sets */
361 MAX_OFLD_QSETS = 16, /* # of offload Tx/Rx queue sets */
362 MAX_CTRL_QUEUES = NCHAN, /* # of control Tx queues */
363 MAX_RDMA_QUEUES = NCHAN, /* # of streaming RDMA Rx queues */
364 MAX_RDMA_CIQS = NCHAN, /* # of RDMA concentrator IQs */
365 MAX_ISCSI_QUEUES = NCHAN, /* # of streaming iSCSI Rx queues */
369 INGQ_EXTRAS = 2, /* firmware event queue and */
370 /* forwarded interrupts */
371 MAX_EGRQ = MAX_ETH_QSETS*2 + MAX_OFLD_QSETS*2
372 + MAX_CTRL_QUEUES + MAX_RDMA_QUEUES + MAX_ISCSI_QUEUES,
373 MAX_INGQ = MAX_ETH_QSETS + MAX_OFLD_QSETS + MAX_RDMA_QUEUES
374 + MAX_RDMA_CIQS + MAX_ISCSI_QUEUES + INGQ_EXTRAS,
380 #include "cxgb4_dcb.h"
383 struct adapter *adapter;
385 s16 xact_addr_filt; /* index of exact MAC address filter */
386 u16 rss_size; /* size of VI's RSS table slice */
392 u8 lport; /* associated offload logical port */
393 u8 nqsets; /* # of qsets */
394 u8 first_qset; /* index of first qset */
396 struct link_config link_cfg;
398 #ifdef CONFIG_CHELSIO_T4_DCB
399 struct port_dcb_info dcb; /* Data Center Bridging support */
406 enum { /* adapter flags */
407 FULL_INIT_DONE = (1 << 0),
408 DEV_ENABLED = (1 << 1),
409 USING_MSI = (1 << 2),
410 USING_MSIX = (1 << 3),
412 RSS_TNLALLLOOKUP = (1 << 5),
413 USING_SOFT_PARAMS = (1 << 6),
414 MASTER_PF = (1 << 7),
415 FW_OFLD_CONN = (1 << 9),
420 struct sge_fl { /* SGE free-buffer queue state */
421 unsigned int avail; /* # of available Rx buffers */
422 unsigned int pend_cred; /* new buffers since last FL DB ring */
423 unsigned int cidx; /* consumer index */
424 unsigned int pidx; /* producer index */
425 unsigned long alloc_failed; /* # of times buffer allocation failed */
426 unsigned long large_alloc_failed;
427 unsigned long starving;
429 unsigned int cntxt_id; /* SGE context id for the free list */
430 unsigned int size; /* capacity of free list */
431 struct rx_sw_desc *sdesc; /* address of SW Rx descriptor ring */
432 __be64 *desc; /* address of HW Rx descriptor ring */
433 dma_addr_t addr; /* bus address of HW ring start */
434 u64 udb; /* BAR2 offset of User Doorbell area */
437 /* A packet gather list */
439 struct page_frag frags[MAX_SKB_FRAGS];
440 void *va; /* virtual address of first byte */
441 unsigned int nfrags; /* # of fragments */
442 unsigned int tot_len; /* total length of fragments */
445 typedef int (*rspq_handler_t)(struct sge_rspq *q, const __be64 *rsp,
446 const struct pkt_gl *gl);
448 struct sge_rspq { /* state for an SGE response queue */
449 struct napi_struct napi;
450 const __be64 *cur_desc; /* current descriptor in queue */
451 unsigned int cidx; /* consumer index */
452 u8 gen; /* current generation bit */
453 u8 intr_params; /* interrupt holdoff parameters */
454 u8 next_intr_params; /* holdoff params for next interrupt */
455 u8 pktcnt_idx; /* interrupt packet threshold */
456 u8 uld; /* ULD handling this queue */
457 u8 idx; /* queue index within its group */
458 int offset; /* offset into current Rx buffer */
459 u16 cntxt_id; /* SGE context id for the response q */
460 u16 abs_id; /* absolute SGE id for the response q */
461 __be64 *desc; /* address of HW response ring */
462 dma_addr_t phys_addr; /* physical address of the ring */
463 u64 udb; /* BAR2 offset of User Doorbell area */
464 unsigned int iqe_len; /* entry size */
465 unsigned int size; /* capacity of response queue */
466 struct adapter *adap;
467 struct net_device *netdev; /* associated net device */
468 rspq_handler_t handler;
471 struct sge_eth_stats { /* Ethernet queue statistics */
472 unsigned long pkts; /* # of ethernet packets */
473 unsigned long lro_pkts; /* # of LRO super packets */
474 unsigned long lro_merged; /* # of wire packets merged by LRO */
475 unsigned long rx_cso; /* # of Rx checksum offloads */
476 unsigned long vlan_ex; /* # of Rx VLAN extractions */
477 unsigned long rx_drops; /* # of packets dropped due to no mem */
480 struct sge_eth_rxq { /* SW Ethernet Rx queue */
481 struct sge_rspq rspq;
483 struct sge_eth_stats stats;
484 } ____cacheline_aligned_in_smp;
486 struct sge_ofld_stats { /* offload queue statistics */
487 unsigned long pkts; /* # of packets */
488 unsigned long imm; /* # of immediate-data packets */
489 unsigned long an; /* # of asynchronous notifications */
490 unsigned long nomem; /* # of responses deferred due to no mem */
493 struct sge_ofld_rxq { /* SW offload Rx queue */
494 struct sge_rspq rspq;
496 struct sge_ofld_stats stats;
497 } ____cacheline_aligned_in_smp;
506 unsigned int in_use; /* # of in-use Tx descriptors */
507 unsigned int size; /* # of descriptors */
508 unsigned int cidx; /* SW consumer index */
509 unsigned int pidx; /* producer index */
510 unsigned long stops; /* # of times q has been stopped */
511 unsigned long restarts; /* # of queue restarts */
512 unsigned int cntxt_id; /* SGE context id for the Tx q */
513 struct tx_desc *desc; /* address of HW Tx descriptor ring */
514 struct tx_sw_desc *sdesc; /* address of SW Tx descriptor ring */
515 struct sge_qstat *stat; /* queue status entry */
516 dma_addr_t phys_addr; /* physical address of the ring */
519 unsigned short db_pidx;
520 unsigned short db_pidx_inc;
521 u64 udb; /* BAR2 offset of User Doorbell area */
524 struct sge_eth_txq { /* state for an SGE Ethernet Tx queue */
526 struct netdev_queue *txq; /* associated netdev TX queue */
527 #ifdef CONFIG_CHELSIO_T4_DCB
528 u8 dcb_prio; /* DCB Priority bound to queue */
530 unsigned long tso; /* # of TSO requests */
531 unsigned long tx_cso; /* # of Tx checksum offloads */
532 unsigned long vlan_ins; /* # of Tx VLAN insertions */
533 unsigned long mapping_err; /* # of I/O MMU packet mapping errors */
534 } ____cacheline_aligned_in_smp;
536 struct sge_ofld_txq { /* state for an SGE offload Tx queue */
538 struct adapter *adap;
539 struct sk_buff_head sendq; /* list of backpressured packets */
540 struct tasklet_struct qresume_tsk; /* restarts the queue */
541 u8 full; /* the Tx ring is full */
542 unsigned long mapping_err; /* # of I/O MMU packet mapping errors */
543 } ____cacheline_aligned_in_smp;
545 struct sge_ctrl_txq { /* state for an SGE control Tx queue */
547 struct adapter *adap;
548 struct sk_buff_head sendq; /* list of backpressured packets */
549 struct tasklet_struct qresume_tsk; /* restarts the queue */
550 u8 full; /* the Tx ring is full */
551 } ____cacheline_aligned_in_smp;
554 struct sge_eth_txq ethtxq[MAX_ETH_QSETS];
555 struct sge_ofld_txq ofldtxq[MAX_OFLD_QSETS];
556 struct sge_ctrl_txq ctrlq[MAX_CTRL_QUEUES];
558 struct sge_eth_rxq ethrxq[MAX_ETH_QSETS];
559 struct sge_ofld_rxq ofldrxq[MAX_OFLD_QSETS];
560 struct sge_ofld_rxq rdmarxq[MAX_RDMA_QUEUES];
561 struct sge_ofld_rxq rdmaciq[MAX_RDMA_CIQS];
562 struct sge_rspq fw_evtq ____cacheline_aligned_in_smp;
564 struct sge_rspq intrq ____cacheline_aligned_in_smp;
565 spinlock_t intrq_lock;
567 u16 max_ethqsets; /* # of available Ethernet queue sets */
568 u16 ethqsets; /* # of active Ethernet queue sets */
569 u16 ethtxq_rover; /* Tx queue to clean up next */
570 u16 ofldqsets; /* # of active offload queue sets */
571 u16 rdmaqs; /* # of available RDMA Rx queues */
572 u16 rdmaciqs; /* # of available RDMA concentrator IQs */
573 u16 ofld_rxq[MAX_OFLD_QSETS];
576 u16 timer_val[SGE_NTIMERS];
577 u8 counter_val[SGE_NCOUNTERS];
578 u32 fl_pg_order; /* large page allocation size */
579 u32 stat_len; /* length of status page at ring end */
580 u32 pktshift; /* padding between CPL & packet data */
581 u32 fl_align; /* response queue message alignment */
582 u32 fl_starve_thres; /* Free List starvation threshold */
584 /* State variables for detecting an SGE Ingress DMA hang */
585 unsigned int idma_1s_thresh;/* SGE same State Counter 1s threshold */
586 unsigned int idma_stalled[2];/* SGE synthesized stalled timers in HZ */
587 unsigned int idma_state[2]; /* SGE IDMA Hang detect state */
588 unsigned int idma_qid[2]; /* SGE IDMA Hung Ingress Queue ID */
590 unsigned int egr_start;
591 unsigned int ingr_start;
592 void *egr_map[MAX_EGRQ]; /* qid->queue egress queue map */
593 struct sge_rspq *ingr_map[MAX_INGQ]; /* qid->queue ingress queue map */
594 DECLARE_BITMAP(starving_fl, MAX_EGRQ);
595 DECLARE_BITMAP(txq_maperr, MAX_EGRQ);
596 struct timer_list rx_timer; /* refills starving FLs */
597 struct timer_list tx_timer; /* checks Tx queues */
600 #define for_each_ethrxq(sge, i) for (i = 0; i < (sge)->ethqsets; i++)
601 #define for_each_ofldrxq(sge, i) for (i = 0; i < (sge)->ofldqsets; i++)
602 #define for_each_rdmarxq(sge, i) for (i = 0; i < (sge)->rdmaqs; i++)
603 #define for_each_rdmaciq(sge, i) for (i = 0; i < (sge)->rdmaciqs; i++)
607 #ifdef CONFIG_PCI_IOV
609 /* T4 supports SRIOV on PF0-3 and T5 on PF0-7. However, the Serial
610 * Configuration initialization for T5 only has SR-IOV functionality enabled
611 * on PF0-3 in order to simplify everything.
613 #define NUM_OF_PF_WITH_SRIOV 4
621 struct pci_dev *pdev;
622 struct device *pdev_dev;
630 struct adapter_params params;
631 struct cxgb4_virt_res vres;
638 char desc[IFNAMSIZ + 10];
639 } msix_info[MAX_INGQ + 1];
643 struct net_device *port[MAX_NPORTS];
644 u8 chan_map[NCHAN]; /* channel -> port map */
647 unsigned int l2t_start;
648 unsigned int l2t_end;
649 struct l2t_data *l2t;
650 void *uld_handle[CXGB4_ULD_MAX];
651 struct list_head list_node;
652 struct list_head rcu_node;
654 struct tid_info tids;
655 void **tid_release_head;
656 spinlock_t tid_release_lock;
657 struct workqueue_struct *workq;
658 struct work_struct tid_release_task;
659 struct work_struct db_full_task;
660 struct work_struct db_drop_task;
661 bool tid_release_task_busy;
663 struct dentry *debugfs_root;
665 spinlock_t stats_lock;
666 spinlock_t win0_lock ____cacheline_aligned_in_smp;
669 /* Defined bit width of user definable filter tuples
671 #define ETHTYPE_BITWIDTH 16
672 #define FRAG_BITWIDTH 1
673 #define MACIDX_BITWIDTH 9
674 #define FCOE_BITWIDTH 1
675 #define IPORT_BITWIDTH 3
676 #define MATCHTYPE_BITWIDTH 3
677 #define PROTO_BITWIDTH 8
678 #define TOS_BITWIDTH 8
679 #define PF_BITWIDTH 8
680 #define VF_BITWIDTH 8
681 #define IVLAN_BITWIDTH 16
682 #define OVLAN_BITWIDTH 16
684 /* Filter matching rules. These consist of a set of ingress packet field
685 * (value, mask) tuples. The associated ingress packet field matches the
686 * tuple when ((field & mask) == value). (Thus a wildcard "don't care" field
687 * rule can be constructed by specifying a tuple of (0, 0).) A filter rule
688 * matches an ingress packet when all of the individual individual field
689 * matching rules are true.
691 * Partial field masks are always valid, however, while it may be easy to
692 * understand their meanings for some fields (e.g. IP address to match a
693 * subnet), for others making sensible partial masks is less intuitive (e.g.
694 * MPS match type) ...
696 * Most of the following data structures are modeled on T4 capabilities.
697 * Drivers for earlier chips use the subsets which make sense for those chips.
698 * We really need to come up with a hardware-independent mechanism to
699 * represent hardware filter capabilities ...
701 struct ch_filter_tuple {
702 /* Compressed header matching field rules. The TP_VLAN_PRI_MAP
703 * register selects which of these fields will participate in the
704 * filter match rules -- up to a maximum of 36 bits. Because
705 * TP_VLAN_PRI_MAP is a global register, all filters must use the same
708 uint32_t ethtype:ETHTYPE_BITWIDTH; /* Ethernet type */
709 uint32_t frag:FRAG_BITWIDTH; /* IP fragmentation header */
710 uint32_t ivlan_vld:1; /* inner VLAN valid */
711 uint32_t ovlan_vld:1; /* outer VLAN valid */
712 uint32_t pfvf_vld:1; /* PF/VF valid */
713 uint32_t macidx:MACIDX_BITWIDTH; /* exact match MAC index */
714 uint32_t fcoe:FCOE_BITWIDTH; /* FCoE packet */
715 uint32_t iport:IPORT_BITWIDTH; /* ingress port */
716 uint32_t matchtype:MATCHTYPE_BITWIDTH; /* MPS match type */
717 uint32_t proto:PROTO_BITWIDTH; /* protocol type */
718 uint32_t tos:TOS_BITWIDTH; /* TOS/Traffic Type */
719 uint32_t pf:PF_BITWIDTH; /* PCI-E PF ID */
720 uint32_t vf:VF_BITWIDTH; /* PCI-E VF ID */
721 uint32_t ivlan:IVLAN_BITWIDTH; /* inner VLAN */
722 uint32_t ovlan:OVLAN_BITWIDTH; /* outer VLAN */
724 /* Uncompressed header matching field rules. These are always
725 * available for field rules.
727 uint8_t lip[16]; /* local IP address (IPv4 in [3:0]) */
728 uint8_t fip[16]; /* foreign IP address (IPv4 in [3:0]) */
729 uint16_t lport; /* local port */
730 uint16_t fport; /* foreign port */
733 /* A filter ioctl command.
735 struct ch_filter_specification {
736 /* Administrative fields for filter.
738 uint32_t hitcnts:1; /* count filter hits in TCB */
739 uint32_t prio:1; /* filter has priority over active/server */
741 /* Fundamental filter typing. This is the one element of filter
742 * matching that doesn't exist as a (value, mask) tuple.
744 uint32_t type:1; /* 0 => IPv4, 1 => IPv6 */
746 /* Packet dispatch information. Ingress packets which match the
747 * filter rules will be dropped, passed to the host or switched back
748 * out as egress packets.
750 uint32_t action:2; /* drop, pass, switch */
752 uint32_t rpttid:1; /* report TID in RSS hash field */
754 uint32_t dirsteer:1; /* 0 => RSS, 1 => steer to iq */
755 uint32_t iq:10; /* ingress queue */
757 uint32_t maskhash:1; /* dirsteer=0: store RSS hash in TCB */
758 uint32_t dirsteerhash:1;/* dirsteer=1: 0 => TCB contains RSS hash */
759 /* 1 => TCB contains IQ ID */
761 /* Switch proxy/rewrite fields. An ingress packet which matches a
762 * filter with "switch" set will be looped back out as an egress
763 * packet -- potentially with some Ethernet header rewriting.
765 uint32_t eport:2; /* egress port to switch packet out */
766 uint32_t newdmac:1; /* rewrite destination MAC address */
767 uint32_t newsmac:1; /* rewrite source MAC address */
768 uint32_t newvlan:2; /* rewrite VLAN Tag */
769 uint8_t dmac[ETH_ALEN]; /* new destination MAC address */
770 uint8_t smac[ETH_ALEN]; /* new source MAC address */
771 uint16_t vlan; /* VLAN Tag to insert */
773 /* Filter rule value/mask pairs.
775 struct ch_filter_tuple val;
776 struct ch_filter_tuple mask;
780 FILTER_PASS = 0, /* default */
786 VLAN_NOCHANGE = 0, /* default */
792 static inline int is_t5(enum chip_type chip)
794 return CHELSIO_CHIP_VERSION(chip) == CHELSIO_T5;
797 static inline int is_t4(enum chip_type chip)
799 return CHELSIO_CHIP_VERSION(chip) == CHELSIO_T4;
802 static inline u32 t4_read_reg(struct adapter *adap, u32 reg_addr)
804 return readl(adap->regs + reg_addr);
807 static inline void t4_write_reg(struct adapter *adap, u32 reg_addr, u32 val)
809 writel(val, adap->regs + reg_addr);
813 static inline u64 readq(const volatile void __iomem *addr)
815 return readl(addr) + ((u64)readl(addr + 4) << 32);
818 static inline void writeq(u64 val, volatile void __iomem *addr)
821 writel(val >> 32, addr + 4);
825 static inline u64 t4_read_reg64(struct adapter *adap, u32 reg_addr)
827 return readq(adap->regs + reg_addr);
830 static inline void t4_write_reg64(struct adapter *adap, u32 reg_addr, u64 val)
832 writeq(val, adap->regs + reg_addr);
836 * netdev2pinfo - return the port_info structure associated with a net_device
839 * Return the struct port_info associated with a net_device
841 static inline struct port_info *netdev2pinfo(const struct net_device *dev)
843 return netdev_priv(dev);
847 * adap2pinfo - return the port_info of a port
849 * @idx: the port index
851 * Return the port_info structure for the port of the given index.
853 static inline struct port_info *adap2pinfo(struct adapter *adap, int idx)
855 return netdev_priv(adap->port[idx]);
859 * netdev2adap - return the adapter structure associated with a net_device
862 * Return the struct adapter associated with a net_device
864 static inline struct adapter *netdev2adap(const struct net_device *dev)
866 return netdev2pinfo(dev)->adapter;
869 void t4_os_portmod_changed(const struct adapter *adap, int port_id);
870 void t4_os_link_changed(struct adapter *adap, int port_id, int link_stat);
872 void *t4_alloc_mem(size_t size);
874 void t4_free_sge_resources(struct adapter *adap);
875 void t4_free_ofld_rxqs(struct adapter *adap, int n, struct sge_ofld_rxq *q);
876 irq_handler_t t4_intr_handler(struct adapter *adap);
877 netdev_tx_t t4_eth_xmit(struct sk_buff *skb, struct net_device *dev);
878 int t4_ethrx_handler(struct sge_rspq *q, const __be64 *rsp,
879 const struct pkt_gl *gl);
880 int t4_mgmt_tx(struct adapter *adap, struct sk_buff *skb);
881 int t4_ofld_send(struct adapter *adap, struct sk_buff *skb);
882 int t4_sge_alloc_rxq(struct adapter *adap, struct sge_rspq *iq, bool fwevtq,
883 struct net_device *dev, int intr_idx,
884 struct sge_fl *fl, rspq_handler_t hnd);
885 int t4_sge_alloc_eth_txq(struct adapter *adap, struct sge_eth_txq *txq,
886 struct net_device *dev, struct netdev_queue *netdevq,
888 int t4_sge_alloc_ctrl_txq(struct adapter *adap, struct sge_ctrl_txq *txq,
889 struct net_device *dev, unsigned int iqid,
890 unsigned int cmplqid);
891 int t4_sge_alloc_ofld_txq(struct adapter *adap, struct sge_ofld_txq *txq,
892 struct net_device *dev, unsigned int iqid);
893 irqreturn_t t4_sge_intr_msix(int irq, void *cookie);
894 int t4_sge_init(struct adapter *adap);
895 void t4_sge_start(struct adapter *adap);
896 void t4_sge_stop(struct adapter *adap);
897 extern int dbfifo_int_thresh;
899 #define for_each_port(adapter, iter) \
900 for (iter = 0; iter < (adapter)->params.nports; ++iter)
902 static inline int is_bypass(struct adapter *adap)
904 return adap->params.bypass;
907 static inline int is_bypass_device(int device)
909 /* this should be set based upon device capabilities */
919 static inline unsigned int core_ticks_per_usec(const struct adapter *adap)
921 return adap->params.vpd.cclk / 1000;
924 static inline unsigned int us_to_core_ticks(const struct adapter *adap,
927 return (us * adap->params.vpd.cclk) / 1000;
930 static inline unsigned int core_ticks_to_us(const struct adapter *adapter,
933 /* add Core Clock / 2 to round ticks to nearest uS */
934 return ((ticks * 1000 + adapter->params.vpd.cclk/2) /
935 adapter->params.vpd.cclk);
938 void t4_set_reg_field(struct adapter *adap, unsigned int addr, u32 mask,
941 int t4_wr_mbox_meat(struct adapter *adap, int mbox, const void *cmd, int size,
942 void *rpl, bool sleep_ok);
944 static inline int t4_wr_mbox(struct adapter *adap, int mbox, const void *cmd,
947 return t4_wr_mbox_meat(adap, mbox, cmd, size, rpl, true);
950 static inline int t4_wr_mbox_ns(struct adapter *adap, int mbox, const void *cmd,
953 return t4_wr_mbox_meat(adap, mbox, cmd, size, rpl, false);
956 void t4_write_indirect(struct adapter *adap, unsigned int addr_reg,
957 unsigned int data_reg, const u32 *vals,
958 unsigned int nregs, unsigned int start_idx);
959 void t4_read_indirect(struct adapter *adap, unsigned int addr_reg,
960 unsigned int data_reg, u32 *vals, unsigned int nregs,
961 unsigned int start_idx);
962 void t4_hw_pci_read_cfg4(struct adapter *adapter, int reg, u32 *val);
966 void t4_intr_enable(struct adapter *adapter);
967 void t4_intr_disable(struct adapter *adapter);
968 int t4_slow_intr_handler(struct adapter *adapter);
970 int t4_wait_dev_ready(struct adapter *adap);
971 int t4_link_start(struct adapter *adap, unsigned int mbox, unsigned int port,
972 struct link_config *lc);
973 int t4_restart_aneg(struct adapter *adap, unsigned int mbox, unsigned int port);
975 #define T4_MEMORY_WRITE 0
976 #define T4_MEMORY_READ 1
977 int t4_memory_rw(struct adapter *adap, int win, int mtype, u32 addr, u32 len,
978 __be32 *buf, int dir);
979 static inline int t4_memory_write(struct adapter *adap, int mtype, u32 addr,
980 u32 len, __be32 *buf)
982 return t4_memory_rw(adap, 0, mtype, addr, len, buf, 0);
985 int t4_seeprom_wp(struct adapter *adapter, bool enable);
986 int get_vpd_params(struct adapter *adapter, struct vpd_params *p);
987 int t4_load_fw(struct adapter *adapter, const u8 *fw_data, unsigned int size);
988 unsigned int t4_flash_cfg_addr(struct adapter *adapter);
989 int t4_get_fw_version(struct adapter *adapter, u32 *vers);
990 int t4_get_tp_version(struct adapter *adapter, u32 *vers);
991 int t4_prep_fw(struct adapter *adap, struct fw_info *fw_info,
992 const u8 *fw_data, unsigned int fw_size,
993 struct fw_hdr *card_fw, enum dev_state state, int *reset);
994 int t4_prep_adapter(struct adapter *adapter);
995 int t4_init_tp_params(struct adapter *adap);
996 int t4_filter_field_shift(const struct adapter *adap, int filter_sel);
997 int t4_port_init(struct adapter *adap, int mbox, int pf, int vf);
998 void t4_fatal_err(struct adapter *adapter);
999 int t4_config_rss_range(struct adapter *adapter, int mbox, unsigned int viid,
1000 int start, int n, const u16 *rspq, unsigned int nrspq);
1001 int t4_config_glbl_rss(struct adapter *adapter, int mbox, unsigned int mode,
1002 unsigned int flags);
1003 int t4_mc_read(struct adapter *adap, int idx, u32 addr, __be32 *data,
1005 int t4_edc_read(struct adapter *adap, int idx, u32 addr, __be32 *data,
1007 const char *t4_get_port_type_description(enum fw_port_type port_type);
1008 void t4_get_port_stats(struct adapter *adap, int idx, struct port_stats *p);
1009 void t4_read_mtu_tbl(struct adapter *adap, u16 *mtus, u8 *mtu_log);
1010 void t4_tp_wr_bits_indirect(struct adapter *adap, unsigned int addr,
1011 unsigned int mask, unsigned int val);
1012 void t4_tp_get_tcp_stats(struct adapter *adap, struct tp_tcp_stats *v4,
1013 struct tp_tcp_stats *v6);
1014 void t4_load_mtus(struct adapter *adap, const unsigned short *mtus,
1015 const unsigned short *alpha, const unsigned short *beta);
1017 void t4_mk_filtdelwr(unsigned int ftid, struct fw_filter_wr *wr, int qid);
1019 void t4_wol_magic_enable(struct adapter *adap, unsigned int port,
1021 int t4_wol_pat_enable(struct adapter *adap, unsigned int port, unsigned int map,
1022 u64 mask0, u64 mask1, unsigned int crc, bool enable);
1024 int t4_fw_hello(struct adapter *adap, unsigned int mbox, unsigned int evt_mbox,
1025 enum dev_master master, enum dev_state *state);
1026 int t4_fw_bye(struct adapter *adap, unsigned int mbox);
1027 int t4_early_init(struct adapter *adap, unsigned int mbox);
1028 int t4_fw_reset(struct adapter *adap, unsigned int mbox, int reset);
1029 int t4_fixup_host_params(struct adapter *adap, unsigned int page_size,
1030 unsigned int cache_line_size);
1031 int t4_fw_initialize(struct adapter *adap, unsigned int mbox);
1032 int t4_query_params(struct adapter *adap, unsigned int mbox, unsigned int pf,
1033 unsigned int vf, unsigned int nparams, const u32 *params,
1035 int t4_set_params(struct adapter *adap, unsigned int mbox, unsigned int pf,
1036 unsigned int vf, unsigned int nparams, const u32 *params,
1038 int t4_set_params_nosleep(struct adapter *adap, unsigned int mbox,
1039 unsigned int pf, unsigned int vf,
1040 unsigned int nparams, const u32 *params,
1042 int t4_cfg_pfvf(struct adapter *adap, unsigned int mbox, unsigned int pf,
1043 unsigned int vf, unsigned int txq, unsigned int txq_eth_ctrl,
1044 unsigned int rxqi, unsigned int rxq, unsigned int tc,
1045 unsigned int vi, unsigned int cmask, unsigned int pmask,
1046 unsigned int nexact, unsigned int rcaps, unsigned int wxcaps);
1047 int t4_alloc_vi(struct adapter *adap, unsigned int mbox, unsigned int port,
1048 unsigned int pf, unsigned int vf, unsigned int nmac, u8 *mac,
1049 unsigned int *rss_size);
1050 int t4_set_rxmode(struct adapter *adap, unsigned int mbox, unsigned int viid,
1051 int mtu, int promisc, int all_multi, int bcast, int vlanex,
1053 int t4_alloc_mac_filt(struct adapter *adap, unsigned int mbox,
1054 unsigned int viid, bool free, unsigned int naddr,
1055 const u8 **addr, u16 *idx, u64 *hash, bool sleep_ok);
1056 int t4_change_mac(struct adapter *adap, unsigned int mbox, unsigned int viid,
1057 int idx, const u8 *addr, bool persist, bool add_smt);
1058 int t4_set_addr_hash(struct adapter *adap, unsigned int mbox, unsigned int viid,
1059 bool ucast, u64 vec, bool sleep_ok);
1060 int t4_enable_vi_params(struct adapter *adap, unsigned int mbox,
1061 unsigned int viid, bool rx_en, bool tx_en, bool dcb_en);
1062 int t4_enable_vi(struct adapter *adap, unsigned int mbox, unsigned int viid,
1063 bool rx_en, bool tx_en);
1064 int t4_identify_port(struct adapter *adap, unsigned int mbox, unsigned int viid,
1065 unsigned int nblinks);
1066 int t4_mdio_rd(struct adapter *adap, unsigned int mbox, unsigned int phy_addr,
1067 unsigned int mmd, unsigned int reg, u16 *valp);
1068 int t4_mdio_wr(struct adapter *adap, unsigned int mbox, unsigned int phy_addr,
1069 unsigned int mmd, unsigned int reg, u16 val);
1070 int t4_iq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
1071 unsigned int vf, unsigned int iqtype, unsigned int iqid,
1072 unsigned int fl0id, unsigned int fl1id);
1073 int t4_eth_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
1074 unsigned int vf, unsigned int eqid);
1075 int t4_ctrl_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
1076 unsigned int vf, unsigned int eqid);
1077 int t4_ofld_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
1078 unsigned int vf, unsigned int eqid);
1079 int t4_handle_fw_rpl(struct adapter *adap, const __be64 *rpl);
1080 void t4_db_full(struct adapter *adapter);
1081 void t4_db_dropped(struct adapter *adapter);
1082 int t4_fwaddrspace_write(struct adapter *adap, unsigned int mbox,
1084 void t4_sge_decode_idma_state(struct adapter *adapter, int state);
1085 #endif /* __CXGB4_H__ */