1 /******************************************************************************
3 Copyright (c) 2013-2014, Intel Corporation
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions are met:
9 1. Redistributions of source code must retain the above copyright notice,
10 this list of conditions and the following disclaimer.
12 2. Redistributions in binary form must reproduce the above copyright
13 notice, this list of conditions and the following disclaimer in the
14 documentation and/or other materials provided with the distribution.
16 3. Neither the name of the Intel Corporation nor the names of its
17 contributors may be used to endorse or promote products derived from
18 this software without specific prior written permission.
20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 POSSIBILITY OF SUCH DAMAGE.
32 ******************************************************************************/
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/buf_ring.h>
44 #include <sys/protosw.h>
45 #include <sys/socket.h>
46 #include <sys/malloc.h>
47 #include <sys/kernel.h>
48 #include <sys/module.h>
49 #include <sys/sockio.h>
50 #include <sys/eventhandler.h>
53 #include <net/if_var.h>
54 #include <net/if_arp.h>
56 #include <net/ethernet.h>
57 #include <net/if_dl.h>
58 #include <net/if_media.h>
61 #include <net/if_types.h>
62 #include <net/if_vlan_var.h>
64 #include <netinet/in_systm.h>
65 #include <netinet/in.h>
66 #include <netinet/if_ether.h>
67 #include <netinet/ip.h>
68 #include <netinet/ip6.h>
69 #include <netinet/tcp.h>
70 #include <netinet/tcp_lro.h>
71 #include <netinet/udp.h>
72 #include <netinet/sctp.h>
74 #include <machine/in_cksum.h>
77 #include <machine/bus.h>
79 #include <machine/resource.h>
82 #include <machine/clock.h>
83 #include <dev/pci/pcivar.h>
84 #include <dev/pci/pcireg.h>
86 #include <sys/sysctl.h>
87 #include <sys/endian.h>
88 #include <sys/taskqueue.h>
91 #include <machine/smp.h>
93 #include "i40e_type.h"
94 #include "i40e_prototype.h"
96 #if defined(IXL_DEBUG) || defined(IXL_DEBUG_SYSCTL)
99 #define MAC_FORMAT "%02x:%02x:%02x:%02x:%02x:%02x"
100 #define MAC_FORMAT_ARGS(mac_addr) \
101 (mac_addr)[0], (mac_addr)[1], (mac_addr)[2], (mac_addr)[3], \
102 (mac_addr)[4], (mac_addr)[5]
103 #define ON_OFF_STR(is_set) ((is_set) ? "On" : "Off")
104 #endif /* IXL_DEBUG || IXL_DEBUG_SYSCTL */
107 /* Enable debug sysctls */
108 #ifndef IXL_DEBUG_SYSCTL
109 #define IXL_DEBUG_SYSCTL 1
112 #define _DBG_PRINTF(S, ...) printf("%s: " S "\n", __func__, ##__VA_ARGS__)
113 #define _DEV_DBG_PRINTF(dev, S, ...) device_printf(dev, "%s: " S "\n", __func__, ##__VA_ARGS__)
114 #define _IF_DBG_PRINTF(ifp, S, ...) if_printf(ifp, "%s: " S "\n", __func__, ##__VA_ARGS__)
116 /* Defines for printing generic debug information */
117 #define DPRINTF(...) _DBG_PRINTF(__VA_ARGS__)
118 #define DDPRINTF(...) _DEV_DBG_PRINTF(__VA_ARGS__)
119 #define IDPRINTF(...) _IF_DBG_PRINTF(__VA_ARGS__)
121 /* Defines for printing specific debug information */
123 #define DEBUG_IOCTL 1
126 #define INIT_DEBUGOUT(...) if (DEBUG_INIT) _DBG_PRINTF(__VA_ARGS__)
127 #define INIT_DBG_DEV(...) if (DEBUG_INIT) _DEV_DBG_PRINTF(__VA_ARGS__)
128 #define INIT_DBG_IF(...) if (DEBUG_INIT) _IF_DBG_PRINTF(__VA_ARGS__)
130 #define IOCTL_DEBUGOUT(...) if (DEBUG_IOCTL) _DBG_PRINTF(__VA_ARGS__)
131 #define IOCTL_DBG_IF2(ifp, S, ...) if (DEBUG_IOCTL) \
132 if_printf(ifp, S "\n", ##__VA_ARGS__)
133 #define IOCTL_DBG_IF(...) if (DEBUG_IOCTL) _IF_DBG_PRINTF(__VA_ARGS__)
135 #define HW_DEBUGOUT(...) if (DEBUG_HW) _DBG_PRINTF(__VA_ARGS__)
137 #else /* no IXL_DEBUG */
139 #define DEBUG_IOCTL 0
143 #define DDPRINTF(...)
144 #define IDPRINTF(...)
146 #define INIT_DEBUGOUT(...)
147 #define INIT_DBG_DEV(...)
148 #define INIT_DBG_IF(...)
149 #define IOCTL_DEBUGOUT(...)
150 #define IOCTL_DBG_IF2(...)
151 #define IOCTL_DBG_IF(...)
152 #define HW_DEBUGOUT(...)
153 #endif /* IXL_DEBUG */
158 * Ring Descriptors Valid Range: 32-4096 Default Value: 1024 This value is the
159 * number of tx/rx descriptors allocated by the driver. Increasing this
160 * value allows the driver to queue more operations. Each descriptor is 16
161 * or 32 bytes (configurable in FVL)
163 #define DEFAULT_RING 1024
164 #define PERFORM_RING 2048
165 #define MAX_RING 4096
169 ** Default number of entries in Tx queue buf_ring.
171 #define SMALL_TXBRSZ 4096
172 /* This may require mbuf cluster tuning */
173 #define DEFAULT_TXBRSZ (SMALL_TXBRSZ * SMALL_TXBRSZ)
175 /* Alignment for rings */
176 #define DBA_ALIGN 128
179 * This parameter controls the maximum no of times the driver will loop in
180 * the isr. Minimum Value = 1
185 * This is the max watchdog interval, ie. the time that can
186 * pass between any two TX clean operations, such only happening
187 * when the TX hardware is functioning.
189 #define IXL_WATCHDOG (10 * hz)
192 * This parameters control when the driver calls the routine to reclaim
193 * transmit descriptors.
195 #define IXL_TX_CLEANUP_THRESHOLD (que->num_desc / 8)
196 #define IXL_TX_OP_THRESHOLD (que->num_desc / 32)
198 /* Flow control constants */
199 #define IXL_FC_PAUSE 0xFFFF
200 #define IXL_FC_HI 0x20000
201 #define IXL_FC_LO 0x10000
203 #define MAX_MULTICAST_ADDR 128
206 #define IXL_ADM_LIMIT 2
207 #define IXL_TSO_SIZE 65535
208 #define IXL_TX_BUF_SZ ((u32) 1514)
209 #define IXL_AQ_BUF_SZ ((u32) 4096)
210 #define IXL_RX_HDR 128
211 #define IXL_AQ_LEN 256
212 #define IXL_AQ_BUFSZ 4096
213 #define IXL_RX_LIMIT 512
216 #define IXL_ITR_NONE 3
217 #define IXL_QUEUE_EOL 0x7FF
218 #define IXL_MAX_FRAME 0x2600
219 #define IXL_MAX_TX_SEGS 8
220 #define IXL_MAX_TSO_SEGS 66
221 #define IXL_SPARSE_CHAIN 6
222 #define IXL_QUEUE_HUNG 0x80000000
225 /* ERJ: hardware can support ~1.5k filters between all functions */
226 #define IXL_MAX_FILTERS 256
227 #define IXL_MAX_TX_BUSY 10
229 #define IXL_NVM_VERSION_LO_SHIFT 0
230 #define IXL_NVM_VERSION_LO_MASK (0xff << IXL_NVM_VERSION_LO_SHIFT)
231 #define IXL_NVM_VERSION_HI_SHIFT 12
232 #define IXL_NVM_VERSION_HI_MASK (0xf << IXL_NVM_VERSION_HI_SHIFT)
236 * Interrupt Moderation parameters
238 #define IXL_MAX_ITR 0x07FF
239 #define IXL_ITR_100K 0x0005
240 #define IXL_ITR_20K 0x0019
241 #define IXL_ITR_8K 0x003E
242 #define IXL_ITR_4K 0x007A
243 #define IXL_ITR_DYNAMIC 0x8000
244 #define IXL_LOW_LATENCY 0
245 #define IXL_AVE_LATENCY 1
246 #define IXL_BULK_LATENCY 2
249 #define IXL_FILTER_USED (u16)(1 << 0)
250 #define IXL_FILTER_VLAN (u16)(1 << 1)
251 #define IXL_FILTER_ADD (u16)(1 << 2)
252 #define IXL_FILTER_DEL (u16)(1 << 3)
253 #define IXL_FILTER_MC (u16)(1 << 4)
255 /* used in the vlan field of the filter when not a vlan */
256 #define IXL_VLAN_ANY -1
258 #define CSUM_OFFLOAD_IPV4 (CSUM_IP|CSUM_TCP|CSUM_UDP|CSUM_SCTP)
259 #define CSUM_OFFLOAD_IPV6 (CSUM_TCP_IPV6|CSUM_UDP_IPV6|CSUM_SCTP_IPV6)
260 #define CSUM_OFFLOAD (CSUM_OFFLOAD_IPV4|CSUM_OFFLOAD_IPV6|CSUM_TSO)
262 /* Misc flags for ixl_vsi.flags */
263 #define IXL_FLAGS_KEEP_TSO4 (1 << 0)
264 #define IXL_FLAGS_KEEP_TSO6 (1 << 1)
266 #define IXL_TX_LOCK(_sc) mtx_lock(&(_sc)->mtx)
267 #define IXL_TX_UNLOCK(_sc) mtx_unlock(&(_sc)->mtx)
268 #define IXL_TX_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->mtx)
269 #define IXL_TX_TRYLOCK(_sc) mtx_trylock(&(_sc)->mtx)
270 #define IXL_TX_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->mtx, MA_OWNED)
272 #define IXL_RX_LOCK(_sc) mtx_lock(&(_sc)->mtx)
273 #define IXL_RX_UNLOCK(_sc) mtx_unlock(&(_sc)->mtx)
274 #define IXL_RX_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->mtx)
276 #if __FreeBSD_version >= 1100000
277 #define IXL_SET_IPACKETS(vsi, count) (vsi)->ipackets = (count)
278 #define IXL_SET_IERRORS(vsi, count) (vsi)->ierrors = (count)
279 #define IXL_SET_OPACKETS(vsi, count) (vsi)->opackets = (count)
280 #define IXL_SET_OERRORS(vsi, count) (vsi)->oerrors = (count)
281 #define IXL_SET_COLLISIONS(vsi, count) /* Do nothing; collisions is always 0. */
282 #define IXL_SET_IBYTES(vsi, count) (vsi)->ibytes = (count)
283 #define IXL_SET_OBYTES(vsi, count) (vsi)->obytes = (count)
284 #define IXL_SET_IMCASTS(vsi, count) (vsi)->imcasts = (count)
285 #define IXL_SET_OMCASTS(vsi, count) (vsi)->omcasts = (count)
286 #define IXL_SET_IQDROPS(vsi, count) (vsi)->iqdrops = (count)
287 #define IXL_SET_OQDROPS(vsi, count) (vsi)->iqdrops = (count)
288 #define IXL_SET_NOPROTO(vsi, count) (vsi)->noproto = (count)
290 #define IXL_SET_IPACKETS(vsi, count) (vsi)->ifp->if_ipackets = (count)
291 #define IXL_SET_IERRORS(vsi, count) (vsi)->ifp->if_ierrors = (count)
292 #define IXL_SET_OPACKETS(vsi, count) (vsi)->ifp->if_opackets = (count)
293 #define IXL_SET_OERRORS(vsi, count) (vsi)->ifp->if_oerrors = (count)
294 #define IXL_SET_COLLISIONS(vsi, count) (vsi)->ifp->if_collisions = (count)
295 #define IXL_SET_IBYTES(vsi, count) (vsi)->ifp->if_ibytes = (count)
296 #define IXL_SET_OBYTES(vsi, count) (vsi)->ifp->if_obytes = (count)
297 #define IXL_SET_IMCASTS(vsi, count) (vsi)->ifp->if_imcasts = (count)
298 #define IXL_SET_OMCASTS(vsi, count) (vsi)->ifp->if_omcasts = (count)
299 #define IXL_SET_IQDROPS(vsi, count) (vsi)->ifp->if_iqdrops = (count)
300 #define IXL_SET_OQDROPS(vsi, odrops) (vsi)->ifp->if_snd.ifq_drops = (odrops)
301 #define IXL_SET_NOPROTO(vsi, count) (vsi)->noproto = (count)
305 *****************************************************************************
308 * This array contains the list of Subvendor/Subdevice IDs on which the driver
311 *****************************************************************************
313 typedef struct _ixl_vendor_info_t {
314 unsigned int vendor_id;
315 unsigned int device_id;
316 unsigned int subvendor_id;
317 unsigned int subdevice_id;
338 ** This struct has multiple uses, multicast
339 ** addresses, vlans, and mac filters all use it.
341 struct ixl_mac_filter {
342 SLIST_ENTRY(ixl_mac_filter) next;
343 u8 macaddr[ETHER_ADDR_LEN];
350 * The Transmit ring control struct
353 struct ixl_queue *que;
356 struct i40e_tx_desc *base;
357 struct i40e_dma_mem dma;
364 struct ixl_tx_buf *buffers;
367 bus_dma_tag_t tx_tag;
368 bus_dma_tag_t tso_tag;
372 /* Used for Dynamic ITR calculation */
384 * The Receive ring control struct
387 struct ixl_queue *que;
389 union i40e_rx_desc *base;
390 struct i40e_dma_mem dma;
400 struct ixl_rx_buf *buffers;
406 /* Used for Dynamic ITR calculation */
419 ** Driver queue struct: this is the interrupt container
420 ** for the associated tx and rx ring pair.
425 u32 msix; /* This queue's MSIX vector */
426 u32 eims; /* This queue's EIMS bit */
427 struct resource *res;
429 int num_desc; /* both tx and rx */
435 struct taskqueue *tq;
440 u64 mbuf_defrag_failed;
449 ** Virtual Station interface:
450 ** there would be one of these per traffic class/type
451 ** for now just one, and its embedded in the pf
453 SLIST_HEAD(ixl_ftl_head, ixl_mac_filter);
459 struct ifmedia media;
462 u16 msix_base; /* station base MSIX vector */
466 struct ixl_queue *queues; /* head of queues */
472 u32 fc; /* local flow ctrl setting */
474 /* MAC/VLAN Filter list */
475 struct ixl_ftl_head ftl;
477 struct i40e_aqc_vsi_properties_data info;
479 eventhandler_tag vlan_attach;
480 eventhandler_tag vlan_detach;
483 /* Per-VSI stats from hardware */
484 struct i40e_eth_stats eth_stats;
485 struct i40e_eth_stats eth_stats_offsets;
486 bool stat_offsets_loaded;
487 /* VSI stat counters */
500 /* Driver statistics */
510 ** Find the number of unrefreshed RX descriptors
513 ixl_rx_unrefreshed(struct ixl_queue *que)
515 struct rx_ring *rxr = &que->rxr;
517 if (rxr->next_check > rxr->next_refresh)
518 return (rxr->next_check - rxr->next_refresh - 1);
520 return ((que->num_desc + rxr->next_check) -
521 rxr->next_refresh - 1);
525 ** Find the next available unused filter
527 static inline struct ixl_mac_filter *
528 ixl_get_filter(struct ixl_vsi *vsi)
530 struct ixl_mac_filter *f;
532 /* create a new empty filter */
533 f = malloc(sizeof(struct ixl_mac_filter),
534 M_DEVBUF, M_NOWAIT | M_ZERO);
536 SLIST_INSERT_HEAD(&vsi->ftl, f, next);
542 ** Compare two ethernet addresses
545 cmp_etheraddr(u8 *ea1, u8 *ea2)
549 if ((ea1[0] == ea2[0]) && (ea1[1] == ea2[1]) &&
550 (ea1[2] == ea2[2]) && (ea1[3] == ea2[3]) &&
551 (ea1[4] == ea2[4]) && (ea1[5] == ea2[5]))
558 * Info for stats sysctls
560 struct ixl_sysctl_info {
566 extern int ixl_atr_rate;
569 ** ixl_fw_version_str - format the FW and NVM version strings
572 ixl_fw_version_str(struct i40e_hw *hw)
576 snprintf(buf, sizeof(buf),
577 "f%d.%d a%d.%d n%02x.%02x e%08x",
578 hw->aq.fw_maj_ver, hw->aq.fw_min_ver,
579 hw->aq.api_maj_ver, hw->aq.api_min_ver,
580 (hw->nvm.version & IXL_NVM_VERSION_HI_MASK) >>
581 IXL_NVM_VERSION_HI_SHIFT,
582 (hw->nvm.version & IXL_NVM_VERSION_LO_MASK) >>
583 IXL_NVM_VERSION_LO_SHIFT,
588 /*********************************************************************
589 * TXRX Function prototypes
590 *********************************************************************/
591 int ixl_allocate_tx_data(struct ixl_queue *);
592 int ixl_allocate_rx_data(struct ixl_queue *);
593 void ixl_init_tx_ring(struct ixl_queue *);
594 int ixl_init_rx_ring(struct ixl_queue *);
595 bool ixl_rxeof(struct ixl_queue *, int);
596 bool ixl_txeof(struct ixl_queue *);
597 int ixl_mq_start(struct ifnet *, struct mbuf *);
598 int ixl_mq_start_locked(struct ifnet *, struct tx_ring *);
599 void ixl_deferred_mq_start(void *, int);
600 void ixl_qflush(struct ifnet *);
601 void ixl_free_vsi(struct ixl_vsi *);
602 void ixl_free_que_tx(struct ixl_queue *);
603 void ixl_free_que_rx(struct ixl_queue *);
605 void ixl_atr(struct ixl_queue *, struct tcphdr *, int);
607 #if __FreeBSD_version >= 1100000
608 uint64_t ixl_get_counter(if_t ifp, ift_counter cnt);