1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2015-2020 Beijing WangXun Technology Co., Ltd.
3 * Copyright(c) 2010-2017 Intel Corporation
10 #include <sys/queue.h>
11 #include <rte_malloc.h>
13 #include "txgbe_logs.h"
14 #include "base/txgbe.h"
15 #include "txgbe_ethdev.h"
17 #define TXGBE_DEFAULT_FLEXBYTES_OFFSET 12 /*default flexbytes offset in bytes*/
18 #define TXGBE_MAX_FLX_SOURCE_OFF 62
19 #define TXGBE_FDIRCMD_CMD_INTERVAL_US 10
21 #define IPV6_ADDR_TO_MASK(ipaddr, ipv6m) do { \
22 uint8_t ipv6_addr[16]; \
24 rte_memcpy(ipv6_addr, (ipaddr), sizeof(ipv6_addr));\
26 for (i = 0; i < sizeof(ipv6_addr); i++) { \
27 if (ipv6_addr[i] == UINT8_MAX) \
29 else if (ipv6_addr[i] != 0) { \
30 PMD_DRV_LOG(ERR, " invalid IPv6 address mask."); \
36 #define IPV6_MASK_TO_ADDR(ipv6m, ipaddr) do { \
37 uint8_t ipv6_addr[16]; \
39 for (i = 0; i < sizeof(ipv6_addr); i++) { \
40 if ((ipv6m) & (1 << i)) \
41 ipv6_addr[i] = UINT8_MAX; \
45 rte_memcpy((ipaddr), ipv6_addr, sizeof(ipv6_addr));\
49 * Initialize Flow Director control registers
50 * @hw: pointer to hardware structure
51 * @fdirctrl: value to write to flow director control register
54 txgbe_fdir_enable(struct txgbe_hw *hw, uint32_t fdirctrl)
58 PMD_INIT_FUNC_TRACE();
60 /* Prime the keys for hashing */
61 wr32(hw, TXGBE_FDIRBKTHKEY, TXGBE_ATR_BUCKET_HASH_KEY);
62 wr32(hw, TXGBE_FDIRSIGHKEY, TXGBE_ATR_SIGNATURE_HASH_KEY);
65 * Continue setup of fdirctrl register bits:
66 * Set the maximum length per hash bucket to 0xA filters
67 * Send interrupt when 64 filters are left
69 fdirctrl |= TXGBE_FDIRCTL_MAXLEN(0xA) |
70 TXGBE_FDIRCTL_FULLTHR(4);
73 * Poll init-done after we write the register. Estimated times:
74 * 10G: PBALLOC = 11b, timing is 60us
75 * 1G: PBALLOC = 11b, timing is 600us
76 * 100M: PBALLOC = 11b, timing is 6ms
78 * Multiple these timings by 4 if under full Rx load
80 * So we'll poll for TXGBE_FDIR_INIT_DONE_POLL times, sleeping for
81 * 1 msec per poll time. If we're at line rate and drop to 100M, then
82 * this might not finish in our poll time, but we can live with that
85 wr32(hw, TXGBE_FDIRCTL, fdirctrl);
87 for (i = 0; i < TXGBE_FDIR_INIT_DONE_POLL; i++) {
88 if (rd32(hw, TXGBE_FDIRCTL) & TXGBE_FDIRCTL_INITDONE)
93 if (i >= TXGBE_FDIR_INIT_DONE_POLL) {
94 PMD_INIT_LOG(ERR, "Flow Director poll time exceeded during enabling!");
101 * Set appropriate bits in fdirctrl for: variable reporting levels, moving
102 * flexbytes matching field, and drop queue (only for perfect matching mode).
105 configure_fdir_flags(const struct rte_fdir_conf *conf,
106 uint32_t *fdirctrl, uint32_t *flex)
111 switch (conf->pballoc) {
112 case RTE_FDIR_PBALLOC_64K:
113 /* 8k - 1 signature filters */
114 *fdirctrl |= TXGBE_FDIRCTL_BUF_64K;
116 case RTE_FDIR_PBALLOC_128K:
117 /* 16k - 1 signature filters */
118 *fdirctrl |= TXGBE_FDIRCTL_BUF_128K;
120 case RTE_FDIR_PBALLOC_256K:
121 /* 32k - 1 signature filters */
122 *fdirctrl |= TXGBE_FDIRCTL_BUF_256K;
126 PMD_INIT_LOG(ERR, "Invalid fdir_conf->pballoc value");
130 /* status flags: write hash & swindex in the rx descriptor */
131 switch (conf->status) {
132 case RTE_FDIR_NO_REPORT_STATUS:
133 /* do nothing, default mode */
135 case RTE_FDIR_REPORT_STATUS:
136 /* report status when the packet matches a fdir rule */
137 *fdirctrl |= TXGBE_FDIRCTL_REPORT_MATCH;
139 case RTE_FDIR_REPORT_STATUS_ALWAYS:
140 /* always report status */
141 *fdirctrl |= TXGBE_FDIRCTL_REPORT_ALWAYS;
145 PMD_INIT_LOG(ERR, "Invalid fdir_conf->status value");
149 *flex |= TXGBE_FDIRFLEXCFG_BASE_MAC;
150 *flex |= TXGBE_FDIRFLEXCFG_OFST(TXGBE_DEFAULT_FLEXBYTES_OFFSET / 2);
152 switch (conf->mode) {
153 case RTE_FDIR_MODE_SIGNATURE:
155 case RTE_FDIR_MODE_PERFECT:
156 *fdirctrl |= TXGBE_FDIRCTL_PERFECT;
157 *fdirctrl |= TXGBE_FDIRCTL_DROPQP(conf->drop_queue);
161 PMD_INIT_LOG(ERR, "Invalid fdir_conf->mode value");
169 txgbe_fdir_set_input_mask(struct rte_eth_dev *dev)
171 struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
172 struct txgbe_hw_fdir_info *info = TXGBE_DEV_FDIR(dev);
173 enum rte_fdir_mode mode = dev->data->dev_conf.fdir_conf.mode;
175 * mask VM pool and DIPv6 since there are currently not supported
176 * mask FLEX byte, it will be set in flex_conf
178 uint32_t fdirm = TXGBE_FDIRMSK_POOL;
179 uint32_t fdirtcpm; /* TCP source and destination port masks. */
180 uint32_t fdiripv6m; /* IPv6 source and destination masks. */
182 PMD_INIT_FUNC_TRACE();
184 if (mode != RTE_FDIR_MODE_SIGNATURE &&
185 mode != RTE_FDIR_MODE_PERFECT) {
186 PMD_DRV_LOG(ERR, "Not supported fdir mode - %d!", mode);
191 * Program the relevant mask registers. If src/dst_port or src/dst_addr
192 * are zero, then assume a full mask for that field. Also assume that
193 * a VLAN of 0 is unspecified, so mask that out as well. L4type
194 * cannot be masked out in this implementation.
196 if (info->mask.dst_port_mask == 0 && info->mask.src_port_mask == 0) {
197 /* use the L4 protocol mask for raw IPv4/IPv6 traffic */
198 fdirm |= TXGBE_FDIRMSK_L4P;
201 /* TBD: don't support encapsulation yet */
202 wr32(hw, TXGBE_FDIRMSK, fdirm);
204 /* store the TCP/UDP port masks */
205 fdirtcpm = rte_be_to_cpu_16(info->mask.dst_port_mask) << 16;
206 fdirtcpm |= rte_be_to_cpu_16(info->mask.src_port_mask);
208 /* write all the same so that UDP, TCP and SCTP use the same mask
211 wr32(hw, TXGBE_FDIRTCPMSK, ~fdirtcpm);
212 wr32(hw, TXGBE_FDIRUDPMSK, ~fdirtcpm);
213 wr32(hw, TXGBE_FDIRSCTPMSK, ~fdirtcpm);
215 /* Store source and destination IPv4 masks (big-endian) */
216 wr32(hw, TXGBE_FDIRSIP4MSK, ~info->mask.src_ipv4_mask);
217 wr32(hw, TXGBE_FDIRDIP4MSK, ~info->mask.dst_ipv4_mask);
219 if (mode == RTE_FDIR_MODE_SIGNATURE) {
221 * Store source and destination IPv6 masks (bit reversed)
223 fdiripv6m = TXGBE_FDIRIP6MSK_DST(info->mask.dst_ipv6_mask) |
224 TXGBE_FDIRIP6MSK_SRC(info->mask.src_ipv6_mask);
226 wr32(hw, TXGBE_FDIRIP6MSK, ~fdiripv6m);
233 txgbe_fdir_store_input_mask(struct rte_eth_dev *dev)
235 struct rte_eth_fdir_masks *input_mask =
236 &dev->data->dev_conf.fdir_conf.mask;
237 enum rte_fdir_mode mode = dev->data->dev_conf.fdir_conf.mode;
238 struct txgbe_hw_fdir_info *info = TXGBE_DEV_FDIR(dev);
239 uint16_t dst_ipv6m = 0;
240 uint16_t src_ipv6m = 0;
242 if (mode != RTE_FDIR_MODE_SIGNATURE &&
243 mode != RTE_FDIR_MODE_PERFECT) {
244 PMD_DRV_LOG(ERR, "Not supported fdir mode - %d!", mode);
248 memset(&info->mask, 0, sizeof(struct txgbe_hw_fdir_mask));
249 info->mask.vlan_tci_mask = input_mask->vlan_tci_mask;
250 info->mask.src_port_mask = input_mask->src_port_mask;
251 info->mask.dst_port_mask = input_mask->dst_port_mask;
252 info->mask.src_ipv4_mask = input_mask->ipv4_mask.src_ip;
253 info->mask.dst_ipv4_mask = input_mask->ipv4_mask.dst_ip;
254 IPV6_ADDR_TO_MASK(input_mask->ipv6_mask.src_ip, src_ipv6m);
255 IPV6_ADDR_TO_MASK(input_mask->ipv6_mask.dst_ip, dst_ipv6m);
256 info->mask.src_ipv6_mask = src_ipv6m;
257 info->mask.dst_ipv6_mask = dst_ipv6m;
263 txgbe_fdir_set_flexbytes_offset(struct rte_eth_dev *dev,
266 struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
269 for (i = 0; i < 64; i++) {
270 uint32_t flexreg, flex;
271 flexreg = rd32(hw, TXGBE_FDIRFLEXCFG(i / 4));
272 flex = TXGBE_FDIRFLEXCFG_BASE_MAC;
273 flex |= TXGBE_FDIRFLEXCFG_OFST(offset / 2);
274 flexreg &= ~(TXGBE_FDIRFLEXCFG_ALL(~0UL, i % 4));
275 flexreg |= TXGBE_FDIRFLEXCFG_ALL(flex, i % 4);
276 wr32(hw, TXGBE_FDIRFLEXCFG(i / 4), flexreg);
280 for (i = 0; i < TXGBE_FDIR_INIT_DONE_POLL; i++) {
281 if (rd32(hw, TXGBE_FDIRCTL) &
282 TXGBE_FDIRCTL_INITDONE)
290 * txgbe_check_fdir_flex_conf -check if the flex payload and mask configuration
291 * arguments are valid
294 txgbe_set_fdir_flex_conf(struct rte_eth_dev *dev, uint32_t flex)
296 const struct rte_eth_fdir_flex_conf *conf =
297 &dev->data->dev_conf.fdir_conf.flex_conf;
298 struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
299 struct txgbe_hw_fdir_info *info = TXGBE_DEV_FDIR(dev);
300 const struct rte_eth_flex_payload_cfg *flex_cfg;
301 const struct rte_eth_fdir_flex_mask *flex_mask;
302 uint16_t flexbytes = 0;
306 PMD_DRV_LOG(ERR, "NULL pointer.");
310 flex |= TXGBE_FDIRFLEXCFG_DIA;
312 for (i = 0; i < conf->nb_payloads; i++) {
313 flex_cfg = &conf->flex_set[i];
314 if (flex_cfg->type != RTE_ETH_RAW_PAYLOAD) {
315 PMD_DRV_LOG(ERR, "unsupported payload type.");
318 if (((flex_cfg->src_offset[0] & 0x1) == 0) &&
319 (flex_cfg->src_offset[1] == flex_cfg->src_offset[0] + 1) &&
320 flex_cfg->src_offset[0] <= TXGBE_MAX_FLX_SOURCE_OFF) {
321 flex &= ~TXGBE_FDIRFLEXCFG_OFST_MASK;
323 TXGBE_FDIRFLEXCFG_OFST(flex_cfg->src_offset[0] / 2);
325 PMD_DRV_LOG(ERR, "invalid flexbytes arguments.");
330 for (i = 0; i < conf->nb_flexmasks; i++) {
331 flex_mask = &conf->flex_mask[i];
332 if (flex_mask->flow_type != RTE_ETH_FLOW_UNKNOWN) {
333 PMD_DRV_LOG(ERR, "flexmask should be set globally.");
336 flexbytes = (uint16_t)(((flex_mask->mask[1] << 8) & 0xFF00) |
337 ((flex_mask->mask[0]) & 0xFF));
338 if (flexbytes == UINT16_MAX) {
339 flex &= ~TXGBE_FDIRFLEXCFG_DIA;
340 } else if (flexbytes != 0) {
341 /* TXGBE_FDIRFLEXCFG_DIA is set by default when set mask */
342 PMD_DRV_LOG(ERR, " invalid flexbytes mask arguments.");
347 info->mask.flex_bytes_mask = flexbytes ? UINT16_MAX : 0;
348 info->flex_bytes_offset = (uint8_t)(TXGBD_FDIRFLEXCFG_OFST(flex) * 2);
350 for (i = 0; i < 64; i++) {
352 flexreg = rd32(hw, TXGBE_FDIRFLEXCFG(i / 4));
353 flexreg &= ~(TXGBE_FDIRFLEXCFG_ALL(~0UL, i % 4));
354 flexreg |= TXGBE_FDIRFLEXCFG_ALL(flex, i % 4);
355 wr32(hw, TXGBE_FDIRFLEXCFG(i / 4), flexreg);
361 txgbe_fdir_configure(struct rte_eth_dev *dev)
363 struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
365 uint32_t fdirctrl, flex, pbsize;
367 enum rte_fdir_mode mode = dev->data->dev_conf.fdir_conf.mode;
369 PMD_INIT_FUNC_TRACE();
371 /* supports mac-vlan and tunnel mode */
372 if (mode != RTE_FDIR_MODE_SIGNATURE &&
373 mode != RTE_FDIR_MODE_PERFECT)
376 err = configure_fdir_flags(&dev->data->dev_conf.fdir_conf,
382 * Before enabling Flow Director, the Rx Packet Buffer size
383 * must be reduced. The new value is the current size minus
384 * flow director memory usage size.
386 pbsize = rd32(hw, TXGBE_PBRXSIZE(0));
387 pbsize -= TXGBD_FDIRCTL_BUF_BYTE(fdirctrl);
388 wr32(hw, TXGBE_PBRXSIZE(0), pbsize);
391 * The defaults in the HW for RX PB 1-7 are not zero and so should be
392 * initialized to zero for non DCB mode otherwise actual total RX PB
393 * would be bigger than programmed and filter space would run into
396 for (i = 1; i < 8; i++)
397 wr32(hw, TXGBE_PBRXSIZE(i), 0);
399 err = txgbe_fdir_store_input_mask(dev);
401 PMD_INIT_LOG(ERR, " Error on setting FD mask");
405 err = txgbe_fdir_set_input_mask(dev);
407 PMD_INIT_LOG(ERR, " Error on setting FD mask");
411 err = txgbe_set_fdir_flex_conf(dev, flex);
413 PMD_INIT_LOG(ERR, " Error on setting FD flexible arguments.");
417 err = txgbe_fdir_enable(hw, fdirctrl);
419 PMD_INIT_LOG(ERR, " Error on enabling FD.");
426 * Note that the bkt_hash field in the txgbe_atr_input structure is also never
429 * Compute the hashes for SW ATR
430 * @stream: input bitstream to compute the hash on
431 * @key: 32-bit hash key
434 txgbe_atr_compute_hash(struct txgbe_atr_input *atr_input,
438 * The algorithm is as follows:
439 * Hash[15:0] = Sum { S[n] x K[n+16] }, n = 0...350
440 * where Sum {A[n]}, n = 0...n is bitwise XOR of A[0], A[1]...A[n]
441 * and A[n] x B[n] is bitwise AND between same length strings
443 * K[n] is 16 bits, defined as:
444 * for n modulo 32 >= 15, K[n] = K[n % 32 : (n % 32) - 15]
445 * for n modulo 32 < 15, K[n] =
446 * K[(n % 32:0) | (31:31 - (14 - (n % 32)))]
448 * S[n] is 16 bits, defined as:
449 * for n >= 15, S[n] = S[n:n - 15]
450 * for n < 15, S[n] = S[(n:0) | (350:350 - (14 - n))]
452 * To simplify for programming, the algorithm is implemented
453 * in software this way:
455 * key[31:0], hi_hash_dword[31:0], lo_hash_dword[31:0], hash[15:0]
457 * for (i = 0; i < 352; i+=32)
458 * hi_hash_dword[31:0] ^= Stream[(i+31):i];
460 * lo_hash_dword[15:0] ^= Stream[15:0];
461 * lo_hash_dword[15:0] ^= hi_hash_dword[31:16];
462 * lo_hash_dword[31:16] ^= hi_hash_dword[15:0];
464 * hi_hash_dword[31:0] ^= Stream[351:320];
467 * hash[15:0] ^= Stream[15:0];
469 * for (i = 0; i < 16; i++) {
471 * hash[15:0] ^= lo_hash_dword[(i+15):i];
473 * hash[15:0] ^= hi_hash_dword[(i+15):i];
477 __be32 *dword_stream = (__be32 *)atr_input;
478 __be32 common_hash_dword = 0;
479 u32 hi_hash_dword, lo_hash_dword, flow_pool_ptid;
483 /* record the flow_vm_vlan bits as they are a key part to the hash */
484 flow_pool_ptid = be_to_cpu32(dword_stream[0]);
486 /* generate common hash dword */
487 for (i = 1; i <= 10; i++)
488 common_hash_dword ^= dword_stream[i];
490 hi_hash_dword = be_to_cpu32(common_hash_dword);
492 /* low dword is word swapped version of common */
493 lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
495 /* apply (Flow ID/VM Pool/Packet Type) bits to hash words */
496 hi_hash_dword ^= flow_pool_ptid ^ (flow_pool_ptid >> 16);
498 /* Process bits 0 and 16 */
500 hash_result ^= lo_hash_dword;
501 if (key & 0x00010000)
502 hash_result ^= hi_hash_dword;
505 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
506 * delay this because bit 0 of the stream should not be processed
507 * so we do not add the vlan until after bit 0 was processed
509 lo_hash_dword ^= flow_pool_ptid ^ (flow_pool_ptid << 16);
511 /* process the remaining 30 bits in the key 2 bits at a time */
512 for (i = 15; i; i--) {
513 if (key & (0x0001 << i))
514 hash_result ^= lo_hash_dword >> i;
515 if (key & (0x00010000 << i))
516 hash_result ^= hi_hash_dword >> i;
523 atr_compute_perfect_hash(struct txgbe_atr_input *input,
524 enum rte_fdir_pballoc_type pballoc)
526 uint32_t bucket_hash;
528 bucket_hash = txgbe_atr_compute_hash(input,
529 TXGBE_ATR_BUCKET_HASH_KEY);
530 if (pballoc == RTE_FDIR_PBALLOC_256K)
531 bucket_hash &= PERFECT_BUCKET_256KB_HASH_MASK;
532 else if (pballoc == RTE_FDIR_PBALLOC_128K)
533 bucket_hash &= PERFECT_BUCKET_128KB_HASH_MASK;
535 bucket_hash &= PERFECT_BUCKET_64KB_HASH_MASK;
537 return TXGBE_FDIRPIHASH_BKT(bucket_hash);
541 * txgbe_fdir_check_cmd_complete - poll to check whether FDIRPICMD is complete
542 * @hw: pointer to hardware structure
545 txgbe_fdir_check_cmd_complete(struct txgbe_hw *hw, uint32_t *fdircmd)
549 for (i = 0; i < TXGBE_FDIRCMD_CMD_POLL; i++) {
550 *fdircmd = rd32(hw, TXGBE_FDIRPICMD);
551 if (!(*fdircmd & TXGBE_FDIRPICMD_OP_MASK))
553 rte_delay_us(TXGBE_FDIRCMD_CMD_INTERVAL_US);
560 * Calculate the hash value needed for signature-match filters. In the FreeBSD
561 * driver, this is done by the optimised function
562 * txgbe_atr_compute_sig_hash_raptor(). However that can't be used here as it
563 * doesn't support calculating a hash for an IPv6 filter.
566 atr_compute_signature_hash(struct txgbe_atr_input *input,
567 enum rte_fdir_pballoc_type pballoc)
569 uint32_t bucket_hash, sig_hash;
571 bucket_hash = txgbe_atr_compute_hash(input,
572 TXGBE_ATR_BUCKET_HASH_KEY);
573 if (pballoc == RTE_FDIR_PBALLOC_256K)
574 bucket_hash &= SIG_BUCKET_256KB_HASH_MASK;
575 else if (pballoc == RTE_FDIR_PBALLOC_128K)
576 bucket_hash &= SIG_BUCKET_128KB_HASH_MASK;
578 bucket_hash &= SIG_BUCKET_64KB_HASH_MASK;
580 sig_hash = txgbe_atr_compute_hash(input,
581 TXGBE_ATR_SIGNATURE_HASH_KEY);
583 return TXGBE_FDIRPIHASH_SIG(sig_hash) |
584 TXGBE_FDIRPIHASH_BKT(bucket_hash);
588 * With the ability to set extra flags in FDIRPICMD register
589 * added, and IPv6 support also added. The hash value is also pre-calculated
590 * as the pballoc value is needed to do it.
593 fdir_write_perfect_filter(struct txgbe_hw *hw,
594 struct txgbe_atr_input *input, uint8_t queue,
595 uint32_t fdircmd, uint32_t fdirhash,
596 enum rte_fdir_mode mode)
598 uint32_t fdirport, fdirflex;
601 UNREFERENCED_PARAMETER(mode);
603 /* record the IPv4 address (little-endian)
606 wr32(hw, TXGBE_FDIRPISIP4, be_to_le32(input->src_ip[0]));
607 wr32(hw, TXGBE_FDIRPIDIP4, be_to_le32(input->dst_ip[0]));
609 /* record source and destination port (little-endian)*/
610 fdirport = TXGBE_FDIRPIPORT_DST(be_to_le16(input->dst_port));
611 fdirport |= TXGBE_FDIRPIPORT_SRC(be_to_le16(input->src_port));
612 wr32(hw, TXGBE_FDIRPIPORT, fdirport);
614 /* record pkt_type (little-endian) and flex_bytes(big-endian) */
615 fdirflex = TXGBE_FDIRPIFLEX_FLEX(be_to_npu16(input->flex_bytes));
616 fdirflex |= TXGBE_FDIRPIFLEX_PTYPE(be_to_le16(input->pkt_type));
617 wr32(hw, TXGBE_FDIRPIFLEX, fdirflex);
619 /* configure FDIRHASH register */
620 fdirhash |= TXGBE_FDIRPIHASH_VLD;
621 wr32(hw, TXGBE_FDIRPIHASH, fdirhash);
624 * flush all previous writes to make certain registers are
625 * programmed prior to issuing the command
629 /* configure FDIRPICMD register */
630 fdircmd |= TXGBE_FDIRPICMD_OP_ADD |
631 TXGBE_FDIRPICMD_UPD |
632 TXGBE_FDIRPICMD_LAST |
633 TXGBE_FDIRPICMD_QPENA;
634 fdircmd |= TXGBE_FDIRPICMD_FT(input->flow_type);
635 fdircmd |= TXGBE_FDIRPICMD_QP(queue);
636 fdircmd |= TXGBE_FDIRPICMD_POOL(input->vm_pool);
638 wr32(hw, TXGBE_FDIRPICMD, fdircmd);
640 PMD_DRV_LOG(DEBUG, "Rx Queue=%x hash=%x", queue, fdirhash);
642 err = txgbe_fdir_check_cmd_complete(hw, &fdircmd);
644 PMD_DRV_LOG(ERR, "Timeout writing flow director filter.");
650 * This function supports setting extra fields in the FDIRPICMD register, and
651 * removes the code that was verifying the flow_type field. According to the
652 * documentation, a flow type of 00 (i.e. not TCP, UDP, or SCTP) is not
653 * supported, however it appears to work ok...
654 * Adds a signature hash filter
655 * @hw: pointer to hardware structure
656 * @input: unique input dword
657 * @queue: queue index to direct traffic to
658 * @fdircmd: any extra flags to set in fdircmd register
659 * @fdirhash: pre-calculated hash value for the filter
662 fdir_add_signature_filter(struct txgbe_hw *hw,
663 struct txgbe_atr_input *input, uint8_t queue, uint32_t fdircmd,
668 PMD_INIT_FUNC_TRACE();
670 /* configure FDIRPICMD register */
671 fdircmd |= TXGBE_FDIRPICMD_OP_ADD |
672 TXGBE_FDIRPICMD_UPD |
673 TXGBE_FDIRPICMD_LAST |
674 TXGBE_FDIRPICMD_QPENA;
675 fdircmd |= TXGBE_FDIRPICMD_FT(input->flow_type);
676 fdircmd |= TXGBE_FDIRPICMD_QP(queue);
678 fdirhash |= TXGBE_FDIRPIHASH_VLD;
679 wr32(hw, TXGBE_FDIRPIHASH, fdirhash);
680 wr32(hw, TXGBE_FDIRPICMD, fdircmd);
682 PMD_DRV_LOG(DEBUG, "Rx Queue=%x hash=%x", queue, fdirhash);
684 err = txgbe_fdir_check_cmd_complete(hw, &fdircmd);
686 PMD_DRV_LOG(ERR, "Timeout writing flow director filter.");
692 * This is modified to take in the hash as a parameter so that
693 * it can be used for removing signature and perfect filters.
696 fdir_erase_filter_raptor(struct txgbe_hw *hw, uint32_t fdirhash)
698 uint32_t fdircmd = 0;
701 wr32(hw, TXGBE_FDIRPIHASH, fdirhash);
703 /* flush hash to HW */
706 /* Query if filter is present */
707 wr32(hw, TXGBE_FDIRPICMD, TXGBE_FDIRPICMD_OP_QRY);
709 err = txgbe_fdir_check_cmd_complete(hw, &fdircmd);
711 PMD_INIT_LOG(ERR, "Timeout querying for flow director filter.");
715 /* if filter exists in hardware then remove it */
716 if (fdircmd & TXGBE_FDIRPICMD_VLD) {
717 wr32(hw, TXGBE_FDIRPIHASH, fdirhash);
719 wr32(hw, TXGBE_FDIRPICMD, TXGBE_FDIRPICMD_OP_REM);
722 err = txgbe_fdir_check_cmd_complete(hw, &fdircmd);
724 PMD_INIT_LOG(ERR, "Timeout erasing flow director filter.");
729 static inline struct txgbe_fdir_filter *
730 txgbe_fdir_filter_lookup(struct txgbe_hw_fdir_info *fdir_info,
731 struct txgbe_atr_input *input)
735 ret = rte_hash_lookup(fdir_info->hash_handle, (const void *)input);
739 return fdir_info->hash_map[ret];
743 txgbe_insert_fdir_filter(struct txgbe_hw_fdir_info *fdir_info,
744 struct txgbe_fdir_filter *fdir_filter)
748 ret = rte_hash_add_key(fdir_info->hash_handle, &fdir_filter->input);
751 "Failed to insert fdir filter to hash table %d!",
756 fdir_info->hash_map[ret] = fdir_filter;
758 TAILQ_INSERT_TAIL(&fdir_info->fdir_list, fdir_filter, entries);
764 txgbe_remove_fdir_filter(struct txgbe_hw_fdir_info *fdir_info,
765 struct txgbe_atr_input *input)
768 struct txgbe_fdir_filter *fdir_filter;
770 ret = rte_hash_del_key(fdir_info->hash_handle, input);
774 fdir_filter = fdir_info->hash_map[ret];
775 fdir_info->hash_map[ret] = NULL;
777 TAILQ_REMOVE(&fdir_info->fdir_list, fdir_filter, entries);
778 rte_free(fdir_filter);
784 txgbe_fdir_filter_program(struct rte_eth_dev *dev,
785 struct txgbe_fdir_rule *rule,
789 struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
792 bool is_perfect = FALSE;
794 struct txgbe_hw_fdir_info *info = TXGBE_DEV_FDIR(dev);
795 enum rte_fdir_mode fdir_mode = dev->data->dev_conf.fdir_conf.mode;
796 struct txgbe_fdir_filter *node;
798 if (fdir_mode == RTE_FDIR_MODE_NONE ||
799 fdir_mode != rule->mode)
802 if (fdir_mode >= RTE_FDIR_MODE_PERFECT)
806 if (rule->input.flow_type & TXGBE_ATR_L3TYPE_IPV6) {
807 PMD_DRV_LOG(ERR, "IPv6 is not supported in"
811 fdirhash = atr_compute_perfect_hash(&rule->input,
812 dev->data->dev_conf.fdir_conf.pballoc);
813 fdirhash |= TXGBE_FDIRPIHASH_IDX(rule->soft_id);
815 fdirhash = atr_compute_signature_hash(&rule->input,
816 dev->data->dev_conf.fdir_conf.pballoc);
820 err = txgbe_remove_fdir_filter(info, &rule->input);
823 "No such fdir filter to delete %d!", err);
827 err = fdir_erase_filter_raptor(hw, fdirhash);
829 PMD_DRV_LOG(ERR, "Fail to delete FDIR filter!");
831 PMD_DRV_LOG(DEBUG, "Success to delete FDIR filter!");
835 /* add or update an fdir filter*/
836 if (rule->fdirflags & TXGBE_FDIRPICMD_DROP) {
838 PMD_DRV_LOG(ERR, "Drop option is not supported in"
842 queue = dev->data->dev_conf.fdir_conf.drop_queue;
843 } else if (rule->queue < TXGBE_MAX_RX_QUEUE_NUM) {
849 node = txgbe_fdir_filter_lookup(info, &rule->input);
852 PMD_DRV_LOG(ERR, "Conflict with existing fdir filter!");
855 node->fdirflags = rule->fdirflags;
856 node->fdirhash = fdirhash;
859 node = rte_zmalloc("txgbe_fdir",
860 sizeof(struct txgbe_fdir_filter), 0);
863 rte_memcpy(&node->input, &rule->input,
864 sizeof(struct txgbe_atr_input));
865 node->fdirflags = rule->fdirflags;
866 node->fdirhash = fdirhash;
869 err = txgbe_insert_fdir_filter(info, node);
877 err = fdir_write_perfect_filter(hw, &node->input,
878 node->queue, node->fdirflags,
879 node->fdirhash, fdir_mode);
881 err = fdir_add_signature_filter(hw, &node->input,
882 node->queue, node->fdirflags,
885 PMD_DRV_LOG(ERR, "Fail to add FDIR filter!");
886 txgbe_remove_fdir_filter(info, &rule->input);
888 PMD_DRV_LOG(DEBUG, "Success to add FDIR filter");
895 txgbe_fdir_flush(struct rte_eth_dev *dev)
897 struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
898 struct txgbe_hw_fdir_info *info = TXGBE_DEV_FDIR(dev);
901 ret = txgbe_reinit_fdir_tables(hw);
903 PMD_INIT_LOG(ERR, "Failed to re-initialize FD table.");
915 /* restore flow director filter */
917 txgbe_fdir_filter_restore(struct rte_eth_dev *dev)
919 struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
920 struct txgbe_hw_fdir_info *fdir_info = TXGBE_DEV_FDIR(dev);
921 struct txgbe_fdir_filter *node;
922 bool is_perfect = FALSE;
923 enum rte_fdir_mode fdir_mode = dev->data->dev_conf.fdir_conf.mode;
925 if (fdir_mode >= RTE_FDIR_MODE_PERFECT &&
926 fdir_mode <= RTE_FDIR_MODE_PERFECT_TUNNEL)
930 TAILQ_FOREACH(node, &fdir_info->fdir_list, entries) {
931 (void)fdir_write_perfect_filter(hw,
939 TAILQ_FOREACH(node, &fdir_info->fdir_list, entries) {
940 (void)fdir_add_signature_filter(hw,
949 /* remove all the flow director filters */
951 txgbe_clear_all_fdir_filter(struct rte_eth_dev *dev)
953 struct txgbe_hw_fdir_info *fdir_info = TXGBE_DEV_FDIR(dev);
954 struct txgbe_fdir_filter *fdir_filter;
955 struct txgbe_fdir_filter *filter_flag;
958 /* flush flow director */
959 rte_hash_reset(fdir_info->hash_handle);
960 memset(fdir_info->hash_map, 0,
961 sizeof(struct txgbe_fdir_filter *) * TXGBE_MAX_FDIR_FILTER_NUM);
962 filter_flag = TAILQ_FIRST(&fdir_info->fdir_list);
963 while ((fdir_filter = TAILQ_FIRST(&fdir_info->fdir_list))) {
964 TAILQ_REMOVE(&fdir_info->fdir_list,
967 rte_free(fdir_filter);
970 if (filter_flag != NULL)
971 ret = txgbe_fdir_flush(dev);