1 /******************************************************************************
3 Copyright (c) 2013-2018, 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 ******************************************************************************/
39 #include "opt_inet6.h"
43 #include <sys/param.h>
44 #include <sys/systm.h>
45 #include <sys/buf_ring.h>
47 #include <sys/protosw.h>
48 #include <sys/socket.h>
49 #include <sys/malloc.h>
50 #include <sys/kernel.h>
51 #include <sys/module.h>
52 #include <sys/sockio.h>
53 #include <sys/eventhandler.h>
54 #include <sys/syslog.h>
57 #include <net/if_var.h>
58 #include <net/if_arp.h>
60 #include <net/ethernet.h>
61 #include <net/if_dl.h>
62 #include <net/if_media.h>
63 #include <net/iflib.h>
66 #include <net/if_types.h>
67 #include <net/if_vlan_var.h>
69 #include <netinet/in_systm.h>
70 #include <netinet/in.h>
71 #include <netinet/if_ether.h>
72 #include <netinet/ip.h>
73 #include <netinet/ip6.h>
74 #include <netinet/tcp.h>
75 #include <netinet/tcp_lro.h>
76 #include <netinet/udp.h>
77 #include <netinet/sctp.h>
79 #include <machine/in_cksum.h>
82 #include <machine/bus.h>
84 #include <machine/resource.h>
87 #include <machine/clock.h>
88 #include <dev/pci/pcivar.h>
89 #include <dev/pci/pcireg.h>
91 #include <sys/sysctl.h>
92 #include <sys/endian.h>
93 #include <sys/taskqueue.h>
97 #include <machine/smp.h>
98 #include <machine/stdarg.h>
101 #include <net/rss_config.h>
102 #include <netinet/in_rss.h>
106 #include "i40e_type.h"
107 #include "i40e_prototype.h"
108 #include "ixl_debug.h"
110 #define PVIDV(vendor, devid, name) \
111 PVID(vendor, devid, name " - " IXL_DRIVER_VERSION_STRING)
116 * Ring Descriptors Valid Range: 32-4096 Default Value: 1024 This value is the
117 * number of tx/rx descriptors allocated by the driver. Increasing this
118 * value allows the driver to queue more operations.
120 * Tx descriptors are always 16 bytes, but Rx descriptors can be 32 bytes.
121 * The driver currently always uses 32 byte Rx descriptors.
123 #define IXL_DEFAULT_RING 1024
124 #define IXL_MAX_RING 4096
125 #define IXL_MIN_RING 64
126 #define IXL_RING_INCREMENT 32
128 #define IXL_AQ_LEN 256
129 #define IXL_AQ_LEN_MAX 1024
131 /* Alignment for rings */
132 #define DBA_ALIGN 128
134 #define MAX_MULTICAST_ADDR 128
136 #define IXL_MSIX_BAR 3
137 #define IXL_ADM_LIMIT 2
138 #define IXL_TSO_SIZE ((255*1024)-1)
139 #define IXL_TX_BUF_SZ ((u32) 1514)
140 #define IXL_AQ_BUF_SZ ((u32) 4096)
143 #define IXL_ITR_NONE 3
144 #define IXL_QUEUE_EOL 0x7FF
145 #define IXL_MIN_FRAME 17
146 #define IXL_MAX_FRAME 9728
147 #define IXL_MAX_TX_SEGS 8
148 #define IXL_MAX_RX_SEGS 5
149 #define IXL_MAX_TSO_SEGS 128
150 #define IXL_SPARSE_CHAIN 7
151 #define IXL_MIN_TSO_MSS 64
152 #define IXL_MAX_TSO_MSS 9668
153 #define IXL_MAX_DMA_SEG_SIZE ((16 * 1024) - 1)
155 #define IXL_RSS_KEY_SIZE_REG 13
156 #define IXL_RSS_KEY_SIZE (IXL_RSS_KEY_SIZE_REG * 4)
157 #define IXL_RSS_VSI_LUT_SIZE 64 /* X722 -> VSI, X710 -> VF */
158 #define IXL_RSS_VSI_LUT_ENTRY_MASK 0x3F
159 #define IXL_RSS_VF_LUT_ENTRY_MASK 0xF
161 #define IXL_VF_MAX_BUFFER 0x3F80
162 #define IXL_VF_MAX_HDR_BUFFER 0x840
163 #define IXL_VF_MAX_FRAME 0x3FFF
165 /* ERJ: hardware can support ~2k (SW5+) filters between all functions */
166 #define IXL_MAX_FILTERS 256
168 #define IXL_NVM_VERSION_LO_SHIFT 0
169 #define IXL_NVM_VERSION_LO_MASK (0xff << IXL_NVM_VERSION_LO_SHIFT)
170 #define IXL_NVM_VERSION_HI_SHIFT 12
171 #define IXL_NVM_VERSION_HI_MASK (0xf << IXL_NVM_VERSION_HI_SHIFT)
174 * Interrupt Moderation parameters
175 * Multiply ITR values by 2 for real ITR value
177 #define IXL_MAX_ITR 0x0FF0
178 #define IXL_ITR_100K 0x0005
179 #define IXL_ITR_20K 0x0019
180 #define IXL_ITR_8K 0x003E
181 #define IXL_ITR_4K 0x007A
182 #define IXL_ITR_1K 0x01F4
183 #define IXL_ITR_DYNAMIC 0x8000
184 #define IXL_LOW_LATENCY 0
185 #define IXL_AVE_LATENCY 1
186 #define IXL_BULK_LATENCY 2
189 #define IXL_FILTER_USED (u16)(1 << 0)
190 #define IXL_FILTER_VLAN (u16)(1 << 1)
191 #define IXL_FILTER_ADD (u16)(1 << 2)
192 #define IXL_FILTER_DEL (u16)(1 << 3)
193 #define IXL_FILTER_MC (u16)(1 << 4)
195 /* used in the vlan field of the filter when not a vlan */
196 #define IXL_VLAN_ANY -1
198 #define CSUM_OFFLOAD_IPV4 (CSUM_IP|CSUM_TCP|CSUM_UDP|CSUM_SCTP)
199 #define CSUM_OFFLOAD_IPV6 (CSUM_TCP_IPV6|CSUM_UDP_IPV6|CSUM_SCTP_IPV6)
200 #define CSUM_OFFLOAD (CSUM_OFFLOAD_IPV4|CSUM_OFFLOAD_IPV6|CSUM_TSO)
202 #define IXL_VF_RESET_TIMEOUT 100
204 #define IXL_VSI_DATA_PORT 0x01
206 #define IAVF_MAX_QUEUES 16
207 #define IXL_MAX_VSI_QUEUES (2 * (I40E_VSILAN_QTABLE_MAX_INDEX + 1))
209 #define IXL_RX_CTX_BASE_UNITS 128
210 #define IXL_TX_CTX_BASE_UNITS 128
212 #define IXL_PF_PCI_CIAA_VF_DEVICE_STATUS 0xAA
214 #define IXL_PF_PCI_CIAD_VF_TRANS_PENDING_MASK 0x20
216 #define IXL_GLGEN_VFLRSTAT_INDEX(glb_vf) ((glb_vf) / 32)
217 #define IXL_GLGEN_VFLRSTAT_MASK(glb_vf) (1 << ((glb_vf) % 32))
219 #define IXL_MAX_ITR_IDX 3
221 #define IXL_END_OF_INTR_LNKLST 0x7FF
223 #define IXL_DEFAULT_RSS_HENA_BASE (\
224 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_UDP) | \
225 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP) | \
226 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_SCTP) | \
227 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) | \
228 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4) | \
229 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_UDP) | \
230 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP) | \
231 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_SCTP) | \
232 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) | \
233 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6) | \
234 BIT_ULL(I40E_FILTER_PCTYPE_L2_PAYLOAD))
236 #define IXL_DEFAULT_RSS_HENA_XL710 IXL_DEFAULT_RSS_HENA_BASE
238 #define IXL_DEFAULT_RSS_HENA_X722 (\
239 IXL_DEFAULT_RSS_HENA_BASE | \
240 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) | \
241 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP) | \
242 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) | \
243 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP) | \
244 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK) | \
245 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK))
248 (IFCAP_TSO4 | IFCAP_TSO6 | \
249 IFCAP_TXCSUM | IFCAP_TXCSUM_IPV6 | \
250 IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6 | \
251 IFCAP_VLAN_HWFILTER | IFCAP_VLAN_HWTSO | \
252 IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_HWCSUM | \
253 IFCAP_VLAN_MTU | IFCAP_JUMBO_MTU | IFCAP_LRO)
255 #define IXL_CSUM_TCP \
256 (CSUM_IP_TCP|CSUM_IP_TSO|CSUM_IP6_TSO|CSUM_IP6_TCP)
257 #define IXL_CSUM_UDP \
258 (CSUM_IP_UDP|CSUM_IP6_UDP)
259 #define IXL_CSUM_SCTP \
260 (CSUM_IP_SCTP|CSUM_IP6_SCTP)
261 #define IXL_CSUM_IPV4 \
262 (CSUM_IP|CSUM_IP_TSO)
264 /* Pre-11 counter(9) compatibility */
265 #if __FreeBSD_version >= 1100036
266 #define IXL_SET_IPACKETS(vsi, count) (vsi)->ipackets = (count)
267 #define IXL_SET_IERRORS(vsi, count) (vsi)->ierrors = (count)
268 #define IXL_SET_OPACKETS(vsi, count) (vsi)->opackets = (count)
269 #define IXL_SET_OERRORS(vsi, count) (vsi)->oerrors = (count)
270 #define IXL_SET_COLLISIONS(vsi, count) /* Do nothing; collisions is always 0. */
271 #define IXL_SET_IBYTES(vsi, count) (vsi)->ibytes = (count)
272 #define IXL_SET_OBYTES(vsi, count) (vsi)->obytes = (count)
273 #define IXL_SET_IMCASTS(vsi, count) (vsi)->imcasts = (count)
274 #define IXL_SET_OMCASTS(vsi, count) (vsi)->omcasts = (count)
275 #define IXL_SET_IQDROPS(vsi, count) (vsi)->iqdrops = (count)
276 #define IXL_SET_OQDROPS(vsi, count) (vsi)->oqdrops = (count)
277 #define IXL_SET_NOPROTO(vsi, count) (vsi)->noproto = (count)
279 #define IXL_SET_IPACKETS(vsi, count) (vsi)->ifp->if_ipackets = (count)
280 #define IXL_SET_IERRORS(vsi, count) (vsi)->ifp->if_ierrors = (count)
281 #define IXL_SET_OPACKETS(vsi, count) (vsi)->ifp->if_opackets = (count)
282 #define IXL_SET_OERRORS(vsi, count) (vsi)->ifp->if_oerrors = (count)
283 #define IXL_SET_COLLISIONS(vsi, count) (vsi)->ifp->if_collisions = (count)
284 #define IXL_SET_IBYTES(vsi, count) (vsi)->ifp->if_ibytes = (count)
285 #define IXL_SET_OBYTES(vsi, count) (vsi)->ifp->if_obytes = (count)
286 #define IXL_SET_IMCASTS(vsi, count) (vsi)->ifp->if_imcasts = (count)
287 #define IXL_SET_OMCASTS(vsi, count) (vsi)->ifp->if_omcasts = (count)
288 #define IXL_SET_IQDROPS(vsi, count) (vsi)->ifp->if_iqdrops = (count)
289 #define IXL_SET_OQDROPS(vsi, odrops) (vsi)->ifp->if_snd.ifq_drops = (odrops)
290 #define IXL_SET_NOPROTO(vsi, count) (vsi)->noproto = (count)
293 /* For stats sysctl naming */
294 #define QUEUE_NAME_LEN 32
296 #define IXL_DEV_ERR(_dev, _format, ...) \
297 device_printf(_dev, "%s: " _format " (%s:%d)\n", __func__, ##__VA_ARGS__, __FILE__, __LINE__)
300 *****************************************************************************
303 * This array contains the list of Subvendor/Subdevice IDs on which the driver
306 *****************************************************************************
308 typedef struct _ixl_vendor_info_t {
309 unsigned int vendor_id;
310 unsigned int device_id;
311 unsigned int subvendor_id;
312 unsigned int subdevice_id;
317 ** This struct has multiple uses, multicast
318 ** addresses, vlans, and mac filters all use it.
320 struct ixl_mac_filter {
321 SLIST_ENTRY(ixl_mac_filter) next;
322 u8 macaddr[ETHER_ADDR_LEN];
328 * The Transmit ring control struct
331 struct ixl_tx_queue *que;
333 struct i40e_tx_desc *tx_base;
339 * For reporting completed packet status
340 * in descriptor writeback mode
345 qidx_t tx_cidx_processed;
347 /* Used for Dynamic ITR calculation */
359 * The Receive ring control struct
362 struct ixl_rx_queue *que;
363 union i40e_rx_desc *rx_base;
372 /* Used for Dynamic ITR calculation */
383 ** Driver queue structs
385 struct ixl_tx_queue {
388 struct if_irq que_irq;
395 struct ixl_rx_queue {
398 struct if_irq que_irq;
399 u32 msix; /* This queue's MSIX vector */
405 ** Virtual Station Interface
407 SLIST_HEAD(ixl_ftl_head, ixl_mac_filter);
410 if_softc_ctx_t shared;
414 struct ifmedia *media;
420 enum i40e_vsi_type type;
424 bool enable_head_writeback;
432 struct ixl_tx_queue *tx_queues; /* TX queue array */
433 struct ixl_rx_queue *rx_queues; /* RX queue array */
437 /* MAC/VLAN Filter list */
438 struct ixl_ftl_head ftl;
441 /* Contains readylist & stat counter id */
442 struct i40e_aqc_vsi_properties_data info;
446 /* Per-VSI stats from hardware */
447 struct i40e_eth_stats eth_stats;
448 struct i40e_eth_stats eth_stats_offsets;
449 bool stat_offsets_loaded;
450 /* VSI stat counters */
463 /* Driver statistics */
469 /* Stats sysctls for this VSI */
470 struct sysctl_oid *vsi_node;
474 ** Creates new filter with given MAC address and VLAN ID
476 static inline struct ixl_mac_filter *
477 ixl_new_filter(struct ixl_vsi *vsi, const u8 *macaddr, s16 vlan)
479 struct ixl_mac_filter *f;
481 /* create a new empty filter */
482 f = malloc(sizeof(struct ixl_mac_filter),
483 M_DEVBUF, M_NOWAIT | M_ZERO);
485 SLIST_INSERT_HEAD(&vsi->ftl, f, next);
486 bcopy(macaddr, f->macaddr, ETHER_ADDR_LEN);
488 f->flags |= (IXL_FILTER_ADD | IXL_FILTER_USED);
495 ** Compare two ethernet addresses
498 cmp_etheraddr(const u8 *ea1, const u8 *ea2)
500 return (bcmp(ea1, ea2, 6) == 0);
504 * Return next largest power of 2, unsigned
506 * Public domain, from Bit Twiddling Hacks
509 next_power_of_two(u32 n)
519 /* Next power of two > 0 is 1 */
526 * Info for stats sysctls
528 struct ixl_sysctl_info {
534 extern const uint8_t ixl_bcast_addr[ETHER_ADDR_LEN];
536 /* Common function prototypes between PF/VF driver */
537 void ixl_debug_core(device_t dev, u32 enabled_mask, u32 mask, char *fmt, ...);
538 void ixl_init_tx_ring(struct ixl_vsi *vsi, struct ixl_tx_queue *que);
539 void ixl_get_default_rss_key(u32 *);
540 const char * i40e_vc_stat_str(struct i40e_hw *hw,
541 enum virtchnl_status_code stat_err);
542 void ixl_init_tx_rsqs(struct ixl_vsi *vsi);
543 void ixl_init_tx_cidx(struct ixl_vsi *vsi);
544 u64 ixl_max_vc_speed_to_value(u8 link_speeds);
545 void ixl_add_vsi_sysctls(device_t dev, struct ixl_vsi *vsi,
546 struct sysctl_ctx_list *ctx, const char *sysctl_name);
547 void ixl_add_sysctls_eth_stats(struct sysctl_ctx_list *ctx,
548 struct sysctl_oid_list *child,
549 struct i40e_eth_stats *eth_stats);
550 void ixl_add_queues_sysctls(device_t dev, struct ixl_vsi *vsi);