1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2015-2020
10 #include <rte_malloc.h>
12 #include "txgbe_logs.h"
13 #include "base/txgbe.h"
14 #include "txgbe_ethdev.h"
16 #define TXGBE_DEFAULT_FLEXBYTES_OFFSET 12 /*default flexbytes offset in bytes*/
17 #define TXGBE_MAX_FLX_SOURCE_OFF 62
18 #define TXGBE_FDIRCMD_CMD_INTERVAL_US 10
20 #define IPV6_ADDR_TO_MASK(ipaddr, ipv6m) do { \
21 uint8_t ipv6_addr[16]; \
23 rte_memcpy(ipv6_addr, (ipaddr), sizeof(ipv6_addr));\
25 for (i = 0; i < sizeof(ipv6_addr); i++) { \
26 if (ipv6_addr[i] == UINT8_MAX) \
28 else if (ipv6_addr[i] != 0) { \
29 PMD_DRV_LOG(ERR, " invalid IPv6 address mask."); \
35 #define IPV6_MASK_TO_ADDR(ipv6m, ipaddr) do { \
36 uint8_t ipv6_addr[16]; \
38 for (i = 0; i < sizeof(ipv6_addr); i++) { \
39 if ((ipv6m) & (1 << i)) \
40 ipv6_addr[i] = UINT8_MAX; \
44 rte_memcpy((ipaddr), ipv6_addr, sizeof(ipv6_addr));\
48 * Initialize Flow Director control registers
49 * @hw: pointer to hardware structure
50 * @fdirctrl: value to write to flow director control register
53 txgbe_fdir_enable(struct txgbe_hw *hw, uint32_t fdirctrl)
57 PMD_INIT_FUNC_TRACE();
59 /* Prime the keys for hashing */
60 wr32(hw, TXGBE_FDIRBKTHKEY, TXGBE_ATR_BUCKET_HASH_KEY);
61 wr32(hw, TXGBE_FDIRSIGHKEY, TXGBE_ATR_SIGNATURE_HASH_KEY);
64 * Continue setup of fdirctrl register bits:
65 * Set the maximum length per hash bucket to 0xA filters
66 * Send interrupt when 64 filters are left
68 fdirctrl |= TXGBE_FDIRCTL_MAXLEN(0xA) |
69 TXGBE_FDIRCTL_FULLTHR(4);
72 * Poll init-done after we write the register. Estimated times:
73 * 10G: PBALLOC = 11b, timing is 60us
74 * 1G: PBALLOC = 11b, timing is 600us
75 * 100M: PBALLOC = 11b, timing is 6ms
77 * Multiple these timings by 4 if under full Rx load
79 * So we'll poll for TXGBE_FDIR_INIT_DONE_POLL times, sleeping for
80 * 1 msec per poll time. If we're at line rate and drop to 100M, then
81 * this might not finish in our poll time, but we can live with that
84 wr32(hw, TXGBE_FDIRCTL, fdirctrl);
86 for (i = 0; i < TXGBE_FDIR_INIT_DONE_POLL; i++) {
87 if (rd32(hw, TXGBE_FDIRCTL) & TXGBE_FDIRCTL_INITDONE)
92 if (i >= TXGBE_FDIR_INIT_DONE_POLL) {
93 PMD_INIT_LOG(ERR, "Flow Director poll time exceeded during enabling!");
100 * Set appropriate bits in fdirctrl for: variable reporting levels, moving
101 * flexbytes matching field, and drop queue (only for perfect matching mode).
104 configure_fdir_flags(const struct rte_fdir_conf *conf,
105 uint32_t *fdirctrl, uint32_t *flex)
110 switch (conf->pballoc) {
111 case RTE_FDIR_PBALLOC_64K:
112 /* 8k - 1 signature filters */
113 *fdirctrl |= TXGBE_FDIRCTL_BUF_64K;
115 case RTE_FDIR_PBALLOC_128K:
116 /* 16k - 1 signature filters */
117 *fdirctrl |= TXGBE_FDIRCTL_BUF_128K;
119 case RTE_FDIR_PBALLOC_256K:
120 /* 32k - 1 signature filters */
121 *fdirctrl |= TXGBE_FDIRCTL_BUF_256K;
125 PMD_INIT_LOG(ERR, "Invalid fdir_conf->pballoc value");
129 /* status flags: write hash & swindex in the rx descriptor */
130 switch (conf->status) {
131 case RTE_FDIR_NO_REPORT_STATUS:
132 /* do nothing, default mode */
134 case RTE_FDIR_REPORT_STATUS:
135 /* report status when the packet matches a fdir rule */
136 *fdirctrl |= TXGBE_FDIRCTL_REPORT_MATCH;
138 case RTE_FDIR_REPORT_STATUS_ALWAYS:
139 /* always report status */
140 *fdirctrl |= TXGBE_FDIRCTL_REPORT_ALWAYS;
144 PMD_INIT_LOG(ERR, "Invalid fdir_conf->status value");
148 *flex |= TXGBE_FDIRFLEXCFG_BASE_MAC;
149 *flex |= TXGBE_FDIRFLEXCFG_OFST(TXGBE_DEFAULT_FLEXBYTES_OFFSET / 2);
151 switch (conf->mode) {
152 case RTE_FDIR_MODE_SIGNATURE:
154 case RTE_FDIR_MODE_PERFECT:
155 *fdirctrl |= TXGBE_FDIRCTL_PERFECT;
156 *fdirctrl |= TXGBE_FDIRCTL_DROPQP(conf->drop_queue);
160 PMD_INIT_LOG(ERR, "Invalid fdir_conf->mode value");
167 static inline uint32_t
168 reverse_fdir_bmks(uint16_t hi_dword, uint16_t lo_dword)
170 uint32_t mask = hi_dword << 16;
173 mask = ((mask & 0x55555555) << 1) | ((mask & 0xAAAAAAAA) >> 1);
174 mask = ((mask & 0x33333333) << 2) | ((mask & 0xCCCCCCCC) >> 2);
175 mask = ((mask & 0x0F0F0F0F) << 4) | ((mask & 0xF0F0F0F0) >> 4);
176 return ((mask & 0x00FF00FF) << 8) | ((mask & 0xFF00FF00) >> 8);
180 txgbe_fdir_set_input_mask(struct rte_eth_dev *dev)
182 struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
183 struct txgbe_hw_fdir_info *info = TXGBE_DEV_FDIR(dev);
184 enum rte_fdir_mode mode = dev->data->dev_conf.fdir_conf.mode;
186 * mask VM pool and DIPv6 since there are currently not supported
187 * mask FLEX byte, it will be set in flex_conf
189 uint32_t fdirm = TXGBE_FDIRMSK_POOL;
190 uint32_t fdirtcpm; /* TCP source and destination port masks. */
191 uint32_t fdiripv6m; /* IPv6 source and destination masks. */
193 PMD_INIT_FUNC_TRACE();
195 if (mode != RTE_FDIR_MODE_SIGNATURE &&
196 mode != RTE_FDIR_MODE_PERFECT) {
197 PMD_DRV_LOG(ERR, "Not supported fdir mode - %d!", mode);
202 * Program the relevant mask registers. If src/dst_port or src/dst_addr
203 * are zero, then assume a full mask for that field. Also assume that
204 * a VLAN of 0 is unspecified, so mask that out as well. L4type
205 * cannot be masked out in this implementation.
207 if (info->mask.dst_port_mask == 0 && info->mask.src_port_mask == 0) {
208 /* use the L4 protocol mask for raw IPv4/IPv6 traffic */
209 fdirm |= TXGBE_FDIRMSK_L4P;
212 /* TBD: don't support encapsulation yet */
213 wr32(hw, TXGBE_FDIRMSK, fdirm);
215 /* store the TCP/UDP port masks, bit reversed from port layout */
216 fdirtcpm = reverse_fdir_bmks(rte_be_to_cpu_16(info->mask.dst_port_mask),
217 rte_be_to_cpu_16(info->mask.src_port_mask));
219 /* write all the same so that UDP, TCP and SCTP use the same mask
222 wr32(hw, TXGBE_FDIRTCPMSK, ~fdirtcpm);
223 wr32(hw, TXGBE_FDIRUDPMSK, ~fdirtcpm);
224 wr32(hw, TXGBE_FDIRSCTPMSK, ~fdirtcpm);
226 /* Store source and destination IPv4 masks (big-endian) */
227 wr32(hw, TXGBE_FDIRSIP4MSK, ~info->mask.src_ipv4_mask);
228 wr32(hw, TXGBE_FDIRDIP4MSK, ~info->mask.dst_ipv4_mask);
230 if (mode == RTE_FDIR_MODE_SIGNATURE) {
232 * Store source and destination IPv6 masks (bit reversed)
234 fdiripv6m = TXGBE_FDIRIP6MSK_DST(info->mask.dst_ipv6_mask) |
235 TXGBE_FDIRIP6MSK_SRC(info->mask.src_ipv6_mask);
237 wr32(hw, TXGBE_FDIRIP6MSK, ~fdiripv6m);
244 txgbe_fdir_store_input_mask(struct rte_eth_dev *dev)
246 struct rte_eth_fdir_masks *input_mask =
247 &dev->data->dev_conf.fdir_conf.mask;
248 enum rte_fdir_mode mode = dev->data->dev_conf.fdir_conf.mode;
249 struct txgbe_hw_fdir_info *info = TXGBE_DEV_FDIR(dev);
250 uint16_t dst_ipv6m = 0;
251 uint16_t src_ipv6m = 0;
253 if (mode != RTE_FDIR_MODE_SIGNATURE &&
254 mode != RTE_FDIR_MODE_PERFECT) {
255 PMD_DRV_LOG(ERR, "Not supported fdir mode - %d!", mode);
259 memset(&info->mask, 0, sizeof(struct txgbe_hw_fdir_mask));
260 info->mask.vlan_tci_mask = input_mask->vlan_tci_mask;
261 info->mask.src_port_mask = input_mask->src_port_mask;
262 info->mask.dst_port_mask = input_mask->dst_port_mask;
263 info->mask.src_ipv4_mask = input_mask->ipv4_mask.src_ip;
264 info->mask.dst_ipv4_mask = input_mask->ipv4_mask.dst_ip;
265 IPV6_ADDR_TO_MASK(input_mask->ipv6_mask.src_ip, src_ipv6m);
266 IPV6_ADDR_TO_MASK(input_mask->ipv6_mask.dst_ip, dst_ipv6m);
267 info->mask.src_ipv6_mask = src_ipv6m;
268 info->mask.dst_ipv6_mask = dst_ipv6m;
274 txgbe_fdir_set_flexbytes_offset(struct rte_eth_dev *dev,
277 struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
280 for (i = 0; i < 64; i++) {
281 uint32_t flexreg, flex;
282 flexreg = rd32(hw, TXGBE_FDIRFLEXCFG(i / 4));
283 flex = TXGBE_FDIRFLEXCFG_BASE_MAC;
284 flex |= TXGBE_FDIRFLEXCFG_OFST(offset / 2);
285 flexreg &= ~(TXGBE_FDIRFLEXCFG_ALL(~0UL, i % 4));
286 flexreg |= TXGBE_FDIRFLEXCFG_ALL(flex, i % 4);
287 wr32(hw, TXGBE_FDIRFLEXCFG(i / 4), flexreg);
291 for (i = 0; i < TXGBE_FDIR_INIT_DONE_POLL; i++) {
292 if (rd32(hw, TXGBE_FDIRCTL) &
293 TXGBE_FDIRCTL_INITDONE)
301 * txgbe_check_fdir_flex_conf -check if the flex payload and mask configuration
302 * arguments are valid
305 txgbe_set_fdir_flex_conf(struct rte_eth_dev *dev, uint32_t flex)
307 const struct rte_eth_fdir_flex_conf *conf =
308 &dev->data->dev_conf.fdir_conf.flex_conf;
309 struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
310 struct txgbe_hw_fdir_info *info = TXGBE_DEV_FDIR(dev);
311 const struct rte_eth_flex_payload_cfg *flex_cfg;
312 const struct rte_eth_fdir_flex_mask *flex_mask;
313 uint16_t flexbytes = 0;
317 PMD_DRV_LOG(ERR, "NULL pointer.");
321 flex |= TXGBE_FDIRFLEXCFG_DIA;
323 for (i = 0; i < conf->nb_payloads; i++) {
324 flex_cfg = &conf->flex_set[i];
325 if (flex_cfg->type != RTE_ETH_RAW_PAYLOAD) {
326 PMD_DRV_LOG(ERR, "unsupported payload type.");
329 if (((flex_cfg->src_offset[0] & 0x1) == 0) &&
330 (flex_cfg->src_offset[1] == flex_cfg->src_offset[0] + 1) &&
331 flex_cfg->src_offset[0] <= TXGBE_MAX_FLX_SOURCE_OFF) {
332 flex &= ~TXGBE_FDIRFLEXCFG_OFST_MASK;
334 TXGBE_FDIRFLEXCFG_OFST(flex_cfg->src_offset[0] / 2);
336 PMD_DRV_LOG(ERR, "invalid flexbytes arguments.");
341 for (i = 0; i < conf->nb_flexmasks; i++) {
342 flex_mask = &conf->flex_mask[i];
343 if (flex_mask->flow_type != RTE_ETH_FLOW_UNKNOWN) {
344 PMD_DRV_LOG(ERR, "flexmask should be set globally.");
347 flexbytes = (uint16_t)(((flex_mask->mask[1] << 8) & 0xFF00) |
348 ((flex_mask->mask[0]) & 0xFF));
349 if (flexbytes == UINT16_MAX) {
350 flex &= ~TXGBE_FDIRFLEXCFG_DIA;
351 } else if (flexbytes != 0) {
352 /* TXGBE_FDIRFLEXCFG_DIA is set by default when set mask */
353 PMD_DRV_LOG(ERR, " invalid flexbytes mask arguments.");
358 info->mask.flex_bytes_mask = flexbytes ? UINT16_MAX : 0;
359 info->flex_bytes_offset = (uint8_t)(TXGBD_FDIRFLEXCFG_OFST(flex) * 2);
361 for (i = 0; i < 64; i++) {
363 flexreg = rd32(hw, TXGBE_FDIRFLEXCFG(i / 4));
364 flexreg &= ~(TXGBE_FDIRFLEXCFG_ALL(~0UL, i % 4));
365 flexreg |= TXGBE_FDIRFLEXCFG_ALL(flex, i % 4);
366 wr32(hw, TXGBE_FDIRFLEXCFG(i / 4), flexreg);
372 txgbe_fdir_configure(struct rte_eth_dev *dev)
374 struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
376 uint32_t fdirctrl, flex, pbsize;
378 enum rte_fdir_mode mode = dev->data->dev_conf.fdir_conf.mode;
380 PMD_INIT_FUNC_TRACE();
382 /* supports mac-vlan and tunnel mode */
383 if (mode != RTE_FDIR_MODE_SIGNATURE &&
384 mode != RTE_FDIR_MODE_PERFECT)
387 err = configure_fdir_flags(&dev->data->dev_conf.fdir_conf,
393 * Before enabling Flow Director, the Rx Packet Buffer size
394 * must be reduced. The new value is the current size minus
395 * flow director memory usage size.
397 pbsize = rd32(hw, TXGBE_PBRXSIZE(0));
398 pbsize -= TXGBD_FDIRCTL_BUF_BYTE(fdirctrl);
399 wr32(hw, TXGBE_PBRXSIZE(0), pbsize);
402 * The defaults in the HW for RX PB 1-7 are not zero and so should be
403 * initialized to zero for non DCB mode otherwise actual total RX PB
404 * would be bigger than programmed and filter space would run into
407 for (i = 1; i < 8; i++)
408 wr32(hw, TXGBE_PBRXSIZE(i), 0);
410 err = txgbe_fdir_store_input_mask(dev);
412 PMD_INIT_LOG(ERR, " Error on setting FD mask");
416 err = txgbe_fdir_set_input_mask(dev);
418 PMD_INIT_LOG(ERR, " Error on setting FD mask");
422 err = txgbe_set_fdir_flex_conf(dev, flex);
424 PMD_INIT_LOG(ERR, " Error on setting FD flexible arguments.");
428 err = txgbe_fdir_enable(hw, fdirctrl);
430 PMD_INIT_LOG(ERR, " Error on enabling FD.");
437 * Note that the bkt_hash field in the txgbe_atr_input structure is also never
440 * Compute the hashes for SW ATR
441 * @stream: input bitstream to compute the hash on
442 * @key: 32-bit hash key
445 txgbe_atr_compute_hash(struct txgbe_atr_input *atr_input,
449 * The algorithm is as follows:
450 * Hash[15:0] = Sum { S[n] x K[n+16] }, n = 0...350
451 * where Sum {A[n]}, n = 0...n is bitwise XOR of A[0], A[1]...A[n]
452 * and A[n] x B[n] is bitwise AND between same length strings
454 * K[n] is 16 bits, defined as:
455 * for n modulo 32 >= 15, K[n] = K[n % 32 : (n % 32) - 15]
456 * for n modulo 32 < 15, K[n] =
457 * K[(n % 32:0) | (31:31 - (14 - (n % 32)))]
459 * S[n] is 16 bits, defined as:
460 * for n >= 15, S[n] = S[n:n - 15]
461 * for n < 15, S[n] = S[(n:0) | (350:350 - (14 - n))]
463 * To simplify for programming, the algorithm is implemented
464 * in software this way:
466 * key[31:0], hi_hash_dword[31:0], lo_hash_dword[31:0], hash[15:0]
468 * for (i = 0; i < 352; i+=32)
469 * hi_hash_dword[31:0] ^= Stream[(i+31):i];
471 * lo_hash_dword[15:0] ^= Stream[15:0];
472 * lo_hash_dword[15:0] ^= hi_hash_dword[31:16];
473 * lo_hash_dword[31:16] ^= hi_hash_dword[15:0];
475 * hi_hash_dword[31:0] ^= Stream[351:320];
478 * hash[15:0] ^= Stream[15:0];
480 * for (i = 0; i < 16; i++) {
482 * hash[15:0] ^= lo_hash_dword[(i+15):i];
484 * hash[15:0] ^= hi_hash_dword[(i+15):i];
488 __be32 *dword_stream = (__be32 *)atr_input;
489 __be32 common_hash_dword = 0;
490 u32 hi_hash_dword, lo_hash_dword, flow_pool_ptid;
494 /* record the flow_vm_vlan bits as they are a key part to the hash */
495 flow_pool_ptid = be_to_cpu32(dword_stream[0]);
497 /* generate common hash dword */
498 for (i = 1; i <= 10; i++)
499 common_hash_dword ^= dword_stream[i];
501 hi_hash_dword = be_to_cpu32(common_hash_dword);
503 /* low dword is word swapped version of common */
504 lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
506 /* apply (Flow ID/VM Pool/Packet Type) bits to hash words */
507 hi_hash_dword ^= flow_pool_ptid ^ (flow_pool_ptid >> 16);
509 /* Process bits 0 and 16 */
511 hash_result ^= lo_hash_dword;
512 if (key & 0x00010000)
513 hash_result ^= hi_hash_dword;
516 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
517 * delay this because bit 0 of the stream should not be processed
518 * so we do not add the vlan until after bit 0 was processed
520 lo_hash_dword ^= flow_pool_ptid ^ (flow_pool_ptid << 16);
522 /* process the remaining 30 bits in the key 2 bits at a time */
523 for (i = 15; i; i--) {
524 if (key & (0x0001 << i))
525 hash_result ^= lo_hash_dword >> i;
526 if (key & (0x00010000 << i))
527 hash_result ^= hi_hash_dword >> i;
534 atr_compute_perfect_hash(struct txgbe_atr_input *input,
535 enum rte_fdir_pballoc_type pballoc)
537 uint32_t bucket_hash;
539 bucket_hash = txgbe_atr_compute_hash(input,
540 TXGBE_ATR_BUCKET_HASH_KEY);
541 if (pballoc == RTE_FDIR_PBALLOC_256K)
542 bucket_hash &= PERFECT_BUCKET_256KB_HASH_MASK;
543 else if (pballoc == RTE_FDIR_PBALLOC_128K)
544 bucket_hash &= PERFECT_BUCKET_128KB_HASH_MASK;
546 bucket_hash &= PERFECT_BUCKET_64KB_HASH_MASK;
548 return TXGBE_FDIRPIHASH_BKT(bucket_hash);
552 * txgbe_fdir_check_cmd_complete - poll to check whether FDIRPICMD is complete
553 * @hw: pointer to hardware structure
556 txgbe_fdir_check_cmd_complete(struct txgbe_hw *hw, uint32_t *fdircmd)
560 for (i = 0; i < TXGBE_FDIRCMD_CMD_POLL; i++) {
561 *fdircmd = rd32(hw, TXGBE_FDIRPICMD);
562 if (!(*fdircmd & TXGBE_FDIRPICMD_OP_MASK))
564 rte_delay_us(TXGBE_FDIRCMD_CMD_INTERVAL_US);
571 * Calculate the hash value needed for signature-match filters. In the FreeBSD
572 * driver, this is done by the optimised function
573 * txgbe_atr_compute_sig_hash_raptor(). However that can't be used here as it
574 * doesn't support calculating a hash for an IPv6 filter.
577 atr_compute_signature_hash(struct txgbe_atr_input *input,
578 enum rte_fdir_pballoc_type pballoc)
580 uint32_t bucket_hash, sig_hash;
582 bucket_hash = txgbe_atr_compute_hash(input,
583 TXGBE_ATR_BUCKET_HASH_KEY);
584 if (pballoc == RTE_FDIR_PBALLOC_256K)
585 bucket_hash &= SIG_BUCKET_256KB_HASH_MASK;
586 else if (pballoc == RTE_FDIR_PBALLOC_128K)
587 bucket_hash &= SIG_BUCKET_128KB_HASH_MASK;
589 bucket_hash &= SIG_BUCKET_64KB_HASH_MASK;
591 sig_hash = txgbe_atr_compute_hash(input,
592 TXGBE_ATR_SIGNATURE_HASH_KEY);
594 return TXGBE_FDIRPIHASH_SIG(sig_hash) |
595 TXGBE_FDIRPIHASH_BKT(bucket_hash);
599 * With the ability to set extra flags in FDIRPICMD register
600 * added, and IPv6 support also added. The hash value is also pre-calculated
601 * as the pballoc value is needed to do it.
604 fdir_write_perfect_filter(struct txgbe_hw *hw,
605 struct txgbe_atr_input *input, uint8_t queue,
606 uint32_t fdircmd, uint32_t fdirhash,
607 enum rte_fdir_mode mode)
609 uint32_t fdirport, fdirflex;
612 UNREFERENCED_PARAMETER(mode);
614 /* record the IPv4 address (little-endian)
617 wr32(hw, TXGBE_FDIRPISIP4, be_to_le32(input->src_ip[0]));
618 wr32(hw, TXGBE_FDIRPIDIP4, be_to_le32(input->dst_ip[0]));
620 /* record source and destination port (little-endian)*/
621 fdirport = TXGBE_FDIRPIPORT_DST(be_to_le16(input->dst_port));
622 fdirport |= TXGBE_FDIRPIPORT_SRC(be_to_le16(input->src_port));
623 wr32(hw, TXGBE_FDIRPIPORT, fdirport);
625 /* record pkt_type (little-endian) and flex_bytes(big-endian) */
626 fdirflex = TXGBE_FDIRPIFLEX_FLEX(be_to_npu16(input->flex_bytes));
627 fdirflex |= TXGBE_FDIRPIFLEX_PTYPE(be_to_le16(input->pkt_type));
628 wr32(hw, TXGBE_FDIRPIFLEX, fdirflex);
630 /* configure FDIRHASH register */
631 fdirhash |= TXGBE_FDIRPIHASH_VLD;
632 wr32(hw, TXGBE_FDIRPIHASH, fdirhash);
635 * flush all previous writes to make certain registers are
636 * programmed prior to issuing the command
640 /* configure FDIRPICMD register */
641 fdircmd |= TXGBE_FDIRPICMD_OP_ADD |
642 TXGBE_FDIRPICMD_UPD |
643 TXGBE_FDIRPICMD_LAST |
644 TXGBE_FDIRPICMD_QPENA;
645 fdircmd |= TXGBE_FDIRPICMD_FT(input->flow_type);
646 fdircmd |= TXGBE_FDIRPICMD_QP(queue);
647 fdircmd |= TXGBE_FDIRPICMD_POOL(input->vm_pool);
649 wr32(hw, TXGBE_FDIRPICMD, fdircmd);
651 PMD_DRV_LOG(DEBUG, "Rx Queue=%x hash=%x", queue, fdirhash);
653 err = txgbe_fdir_check_cmd_complete(hw, &fdircmd);
655 PMD_DRV_LOG(ERR, "Timeout writing flow director filter.");
661 * This function supports setting extra fields in the FDIRPICMD register, and
662 * removes the code that was verifying the flow_type field. According to the
663 * documentation, a flow type of 00 (i.e. not TCP, UDP, or SCTP) is not
664 * supported, however it appears to work ok...
665 * Adds a signature hash filter
666 * @hw: pointer to hardware structure
667 * @input: unique input dword
668 * @queue: queue index to direct traffic to
669 * @fdircmd: any extra flags to set in fdircmd register
670 * @fdirhash: pre-calculated hash value for the filter
673 fdir_add_signature_filter(struct txgbe_hw *hw,
674 struct txgbe_atr_input *input, uint8_t queue, uint32_t fdircmd,
679 PMD_INIT_FUNC_TRACE();
681 /* configure FDIRPICMD register */
682 fdircmd |= TXGBE_FDIRPICMD_OP_ADD |
683 TXGBE_FDIRPICMD_UPD |
684 TXGBE_FDIRPICMD_LAST |
685 TXGBE_FDIRPICMD_QPENA;
686 fdircmd |= TXGBE_FDIRPICMD_FT(input->flow_type);
687 fdircmd |= TXGBE_FDIRPICMD_QP(queue);
689 fdirhash |= TXGBE_FDIRPIHASH_VLD;
690 wr32(hw, TXGBE_FDIRPIHASH, fdirhash);
691 wr32(hw, TXGBE_FDIRPICMD, fdircmd);
693 PMD_DRV_LOG(DEBUG, "Rx Queue=%x hash=%x", queue, fdirhash);
695 err = txgbe_fdir_check_cmd_complete(hw, &fdircmd);
697 PMD_DRV_LOG(ERR, "Timeout writing flow director filter.");
703 * This is modified to take in the hash as a parameter so that
704 * it can be used for removing signature and perfect filters.
707 fdir_erase_filter_raptor(struct txgbe_hw *hw, uint32_t fdirhash)
709 uint32_t fdircmd = 0;
712 wr32(hw, TXGBE_FDIRPIHASH, fdirhash);
714 /* flush hash to HW */
717 /* Query if filter is present */
718 wr32(hw, TXGBE_FDIRPICMD, TXGBE_FDIRPICMD_OP_QRY);
720 err = txgbe_fdir_check_cmd_complete(hw, &fdircmd);
722 PMD_INIT_LOG(ERR, "Timeout querying for flow director filter.");
726 /* if filter exists in hardware then remove it */
727 if (fdircmd & TXGBE_FDIRPICMD_VLD) {
728 wr32(hw, TXGBE_FDIRPIHASH, fdirhash);
730 wr32(hw, TXGBE_FDIRPICMD, TXGBE_FDIRPICMD_OP_REM);
733 err = txgbe_fdir_check_cmd_complete(hw, &fdircmd);
735 PMD_INIT_LOG(ERR, "Timeout erasing flow director filter.");
740 static inline struct txgbe_fdir_filter *
741 txgbe_fdir_filter_lookup(struct txgbe_hw_fdir_info *fdir_info,
742 struct txgbe_atr_input *input)
746 ret = rte_hash_lookup(fdir_info->hash_handle, (const void *)input);
750 return fdir_info->hash_map[ret];
754 txgbe_insert_fdir_filter(struct txgbe_hw_fdir_info *fdir_info,
755 struct txgbe_fdir_filter *fdir_filter)
759 ret = rte_hash_add_key(fdir_info->hash_handle, &fdir_filter->input);
762 "Failed to insert fdir filter to hash table %d!",
767 fdir_info->hash_map[ret] = fdir_filter;
769 TAILQ_INSERT_TAIL(&fdir_info->fdir_list, fdir_filter, entries);
775 txgbe_remove_fdir_filter(struct txgbe_hw_fdir_info *fdir_info,
776 struct txgbe_atr_input *input)
779 struct txgbe_fdir_filter *fdir_filter;
781 ret = rte_hash_del_key(fdir_info->hash_handle, input);
785 fdir_filter = fdir_info->hash_map[ret];
786 fdir_info->hash_map[ret] = NULL;
788 TAILQ_REMOVE(&fdir_info->fdir_list, fdir_filter, entries);
789 rte_free(fdir_filter);
795 txgbe_fdir_filter_program(struct rte_eth_dev *dev,
796 struct txgbe_fdir_rule *rule,
800 struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
803 bool is_perfect = FALSE;
805 struct txgbe_hw_fdir_info *info = TXGBE_DEV_FDIR(dev);
806 enum rte_fdir_mode fdir_mode = dev->data->dev_conf.fdir_conf.mode;
807 struct txgbe_fdir_filter *node;
809 if (fdir_mode == RTE_FDIR_MODE_NONE ||
810 fdir_mode != rule->mode)
813 if (fdir_mode >= RTE_FDIR_MODE_PERFECT)
817 if (rule->input.flow_type & TXGBE_ATR_L3TYPE_IPV6) {
818 PMD_DRV_LOG(ERR, "IPv6 is not supported in"
822 fdirhash = atr_compute_perfect_hash(&rule->input,
823 dev->data->dev_conf.fdir_conf.pballoc);
824 fdirhash |= TXGBE_FDIRPIHASH_IDX(rule->soft_id);
826 fdirhash = atr_compute_signature_hash(&rule->input,
827 dev->data->dev_conf.fdir_conf.pballoc);
831 err = txgbe_remove_fdir_filter(info, &rule->input);
834 "No such fdir filter to delete %d!", err);
838 err = fdir_erase_filter_raptor(hw, fdirhash);
840 PMD_DRV_LOG(ERR, "Fail to delete FDIR filter!");
842 PMD_DRV_LOG(DEBUG, "Success to delete FDIR filter!");
846 /* add or update an fdir filter*/
847 if (rule->fdirflags & TXGBE_FDIRPICMD_DROP) {
849 PMD_DRV_LOG(ERR, "Drop option is not supported in"
853 queue = dev->data->dev_conf.fdir_conf.drop_queue;
854 } else if (rule->queue < TXGBE_MAX_RX_QUEUE_NUM) {
860 node = txgbe_fdir_filter_lookup(info, &rule->input);
863 PMD_DRV_LOG(ERR, "Conflict with existing fdir filter!");
866 node->fdirflags = rule->fdirflags;
867 node->fdirhash = fdirhash;
870 node = rte_zmalloc("txgbe_fdir",
871 sizeof(struct txgbe_fdir_filter), 0);
874 rte_memcpy(&node->input, &rule->input,
875 sizeof(struct txgbe_atr_input));
876 node->fdirflags = rule->fdirflags;
877 node->fdirhash = fdirhash;
880 err = txgbe_insert_fdir_filter(info, node);
888 err = fdir_write_perfect_filter(hw, &node->input,
889 node->queue, node->fdirflags,
890 node->fdirhash, fdir_mode);
892 err = fdir_add_signature_filter(hw, &node->input,
893 node->queue, node->fdirflags,
896 PMD_DRV_LOG(ERR, "Fail to add FDIR filter!");
897 txgbe_remove_fdir_filter(info, &rule->input);
899 PMD_DRV_LOG(DEBUG, "Success to add FDIR filter");
906 txgbe_fdir_flush(struct rte_eth_dev *dev)
908 struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
909 struct txgbe_hw_fdir_info *info = TXGBE_DEV_FDIR(dev);
912 ret = txgbe_reinit_fdir_tables(hw);
914 PMD_INIT_LOG(ERR, "Failed to re-initialize FD table.");
926 /* restore flow director filter */
928 txgbe_fdir_filter_restore(struct rte_eth_dev *dev)
930 struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
931 struct txgbe_hw_fdir_info *fdir_info = TXGBE_DEV_FDIR(dev);
932 struct txgbe_fdir_filter *node;
933 bool is_perfect = FALSE;
934 enum rte_fdir_mode fdir_mode = dev->data->dev_conf.fdir_conf.mode;
936 if (fdir_mode >= RTE_FDIR_MODE_PERFECT &&
937 fdir_mode <= RTE_FDIR_MODE_PERFECT_TUNNEL)
941 TAILQ_FOREACH(node, &fdir_info->fdir_list, entries) {
942 (void)fdir_write_perfect_filter(hw,
950 TAILQ_FOREACH(node, &fdir_info->fdir_list, entries) {
951 (void)fdir_add_signature_filter(hw,
960 /* remove all the flow director filters */
962 txgbe_clear_all_fdir_filter(struct rte_eth_dev *dev)
964 struct txgbe_hw_fdir_info *fdir_info = TXGBE_DEV_FDIR(dev);
965 struct txgbe_fdir_filter *fdir_filter;
966 struct txgbe_fdir_filter *filter_flag;
969 /* flush flow director */
970 rte_hash_reset(fdir_info->hash_handle);
971 memset(fdir_info->hash_map, 0,
972 sizeof(struct txgbe_fdir_filter *) * TXGBE_MAX_FDIR_FILTER_NUM);
973 filter_flag = TAILQ_FIRST(&fdir_info->fdir_list);
974 while ((fdir_filter = TAILQ_FIRST(&fdir_info->fdir_list))) {
975 TAILQ_REMOVE(&fdir_info->fdir_list,
978 rte_free(fdir_filter);
981 if (filter_flag != NULL)
982 ret = txgbe_fdir_flush(dev);