2 * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
3 * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
5 * This software is available to you under a choice of one of two
6 * licenses. You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this source tree, or the
9 * OpenIB.org BSD license below:
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials
22 * provided with the distribution.
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
34 #include <linux/string.h>
35 #include <linux/etherdevice.h>
37 #include <linux/mlx4/cmd.h>
38 #include <linux/export.h>
42 #define MGM_QPN_MASK 0x00FFFFFF
43 #define MGM_BLCK_LB_BIT 30
45 static const u8 zero_gid[16]; /* automatically initialized to 0 */
48 __be32 next_gid_index;
52 __be32 qp[MLX4_MAX_QP_PER_MGM];
55 int mlx4_get_mgm_entry_size(struct mlx4_dev *dev)
57 return min((1 << mlx4_log_num_mgm_entry_size), MLX4_MAX_MGM_ENTRY_SIZE);
60 int mlx4_get_qp_per_mgm(struct mlx4_dev *dev)
62 return 4 * (mlx4_get_mgm_entry_size(dev) / 16 - 2);
65 static int mlx4_READ_ENTRY(struct mlx4_dev *dev, int index,
66 struct mlx4_cmd_mailbox *mailbox)
68 return mlx4_cmd_box(dev, 0, mailbox->dma, index, 0, MLX4_CMD_READ_MCG,
69 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
72 static int mlx4_WRITE_ENTRY(struct mlx4_dev *dev, int index,
73 struct mlx4_cmd_mailbox *mailbox)
75 return mlx4_cmd(dev, mailbox->dma, index, 0, MLX4_CMD_WRITE_MCG,
76 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
79 static int mlx4_WRITE_PROMISC(struct mlx4_dev *dev, u8 port, u8 steer,
80 struct mlx4_cmd_mailbox *mailbox)
84 in_mod = (u32) port << 16 | steer << 1;
85 return mlx4_cmd(dev, mailbox->dma, in_mod, 0x1,
86 MLX4_CMD_WRITE_MCG, MLX4_CMD_TIME_CLASS_A,
90 static int mlx4_GID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
96 err = mlx4_cmd_imm(dev, mailbox->dma, &imm, 0, op_mod,
97 MLX4_CMD_MGID_HASH, MLX4_CMD_TIME_CLASS_A,
106 static struct mlx4_promisc_qp *get_promisc_qp(struct mlx4_dev *dev, u8 pf_num,
107 enum mlx4_steer_type steer,
110 struct mlx4_steer *s_steer = &mlx4_priv(dev)->steer[pf_num];
111 struct mlx4_promisc_qp *pqp;
113 list_for_each_entry(pqp, &s_steer->promisc_qps[steer], list) {
122 * Add new entry to steering data structure.
123 * All promisc QPs should be added as well
125 static int new_steering_entry(struct mlx4_dev *dev, u8 port,
126 enum mlx4_steer_type steer,
127 unsigned int index, u32 qpn)
129 struct mlx4_steer *s_steer;
130 struct mlx4_cmd_mailbox *mailbox;
131 struct mlx4_mgm *mgm;
133 struct mlx4_steer_index *new_entry;
134 struct mlx4_promisc_qp *pqp;
135 struct mlx4_promisc_qp *dqp = NULL;
139 s_steer = &mlx4_priv(dev)->steer[port - 1];
140 new_entry = kzalloc(sizeof *new_entry, GFP_KERNEL);
144 INIT_LIST_HEAD(&new_entry->duplicates);
145 new_entry->index = index;
146 list_add_tail(&new_entry->list, &s_steer->steer_entries[steer]);
148 /* If the given qpn is also a promisc qp,
149 * it should be inserted to duplicates list
151 pqp = get_promisc_qp(dev, 0, steer, qpn);
153 dqp = kmalloc(sizeof *dqp, GFP_KERNEL);
159 list_add_tail(&dqp->list, &new_entry->duplicates);
162 /* if no promisc qps for this vep, we are done */
163 if (list_empty(&s_steer->promisc_qps[steer]))
166 /* now need to add all the promisc qps to the new
167 * steering entry, as they should also receive the packets
168 * destined to this address */
169 mailbox = mlx4_alloc_cmd_mailbox(dev);
170 if (IS_ERR(mailbox)) {
176 err = mlx4_READ_ENTRY(dev, index, mailbox);
180 members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
181 prot = be32_to_cpu(mgm->members_count) >> 30;
182 list_for_each_entry(pqp, &s_steer->promisc_qps[steer], list) {
183 /* don't add already existing qpn */
186 if (members_count == dev->caps.num_qp_per_mgm) {
193 mgm->qp[members_count++] = cpu_to_be32(pqp->qpn & MGM_QPN_MASK);
195 /* update the qps count and update the entry with all the promisc qps*/
196 mgm->members_count = cpu_to_be32(members_count | (prot << 30));
197 err = mlx4_WRITE_ENTRY(dev, index, mailbox);
200 mlx4_free_cmd_mailbox(dev, mailbox);
205 list_del(&dqp->list);
208 list_del(&new_entry->list);
213 /* update the data structures with existing steering entry */
214 static int existing_steering_entry(struct mlx4_dev *dev, u8 port,
215 enum mlx4_steer_type steer,
216 unsigned int index, u32 qpn)
218 struct mlx4_steer *s_steer;
219 struct mlx4_steer_index *tmp_entry, *entry = NULL;
220 struct mlx4_promisc_qp *pqp;
221 struct mlx4_promisc_qp *dqp;
223 s_steer = &mlx4_priv(dev)->steer[port - 1];
225 pqp = get_promisc_qp(dev, 0, steer, qpn);
227 return 0; /* nothing to do */
229 list_for_each_entry(tmp_entry, &s_steer->steer_entries[steer], list) {
230 if (tmp_entry->index == index) {
235 if (unlikely(!entry)) {
236 mlx4_warn(dev, "Steering entry at index %x is not registered\n", index);
240 /* the given qpn is listed as a promisc qpn
241 * we need to add it as a duplicate to this entry
242 * for future references */
243 list_for_each_entry(dqp, &entry->duplicates, list) {
245 return 0; /* qp is already duplicated */
248 /* add the qp as a duplicate on this index */
249 dqp = kmalloc(sizeof *dqp, GFP_KERNEL);
253 list_add_tail(&dqp->list, &entry->duplicates);
258 /* Check whether a qpn is a duplicate on steering entry
259 * If so, it should not be removed from mgm */
260 static bool check_duplicate_entry(struct mlx4_dev *dev, u8 port,
261 enum mlx4_steer_type steer,
262 unsigned int index, u32 qpn)
264 struct mlx4_steer *s_steer;
265 struct mlx4_steer_index *tmp_entry, *entry = NULL;
266 struct mlx4_promisc_qp *dqp, *tmp_dqp;
268 s_steer = &mlx4_priv(dev)->steer[port - 1];
270 /* if qp is not promisc, it cannot be duplicated */
271 if (!get_promisc_qp(dev, 0, steer, qpn))
274 /* The qp is promisc qp so it is a duplicate on this index
275 * Find the index entry, and remove the duplicate */
276 list_for_each_entry(tmp_entry, &s_steer->steer_entries[steer], list) {
277 if (tmp_entry->index == index) {
282 if (unlikely(!entry)) {
283 mlx4_warn(dev, "Steering entry for index %x is not registered\n", index);
286 list_for_each_entry_safe(dqp, tmp_dqp, &entry->duplicates, list) {
287 if (dqp->qpn == qpn) {
288 list_del(&dqp->list);
295 /* I a steering entry contains only promisc QPs, it can be removed. */
296 static bool can_remove_steering_entry(struct mlx4_dev *dev, u8 port,
297 enum mlx4_steer_type steer,
298 unsigned int index, u32 tqpn)
300 struct mlx4_steer *s_steer;
301 struct mlx4_cmd_mailbox *mailbox;
302 struct mlx4_mgm *mgm;
303 struct mlx4_steer_index *entry = NULL, *tmp_entry;
309 s_steer = &mlx4_priv(dev)->steer[port - 1];
311 mailbox = mlx4_alloc_cmd_mailbox(dev);
316 if (mlx4_READ_ENTRY(dev, index, mailbox))
318 members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
319 for (i = 0; i < members_count; i++) {
320 qpn = be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK;
321 if (!get_promisc_qp(dev, 0, steer, qpn) && qpn != tqpn) {
322 /* the qp is not promisc, the entry can't be removed */
326 /* All the qps currently registered for this entry are promiscuous,
327 * Checking for duplicates */
329 list_for_each_entry_safe(entry, tmp_entry, &s_steer->steer_entries[steer], list) {
330 if (entry->index == index) {
331 if (list_empty(&entry->duplicates)) {
332 list_del(&entry->list);
335 /* This entry contains duplicates so it shouldn't be removed */
343 mlx4_free_cmd_mailbox(dev, mailbox);
347 static int add_promisc_qp(struct mlx4_dev *dev, u8 port,
348 enum mlx4_steer_type steer, u32 qpn)
350 struct mlx4_steer *s_steer;
351 struct mlx4_cmd_mailbox *mailbox;
352 struct mlx4_mgm *mgm;
353 struct mlx4_steer_index *entry;
354 struct mlx4_promisc_qp *pqp;
355 struct mlx4_promisc_qp *dqp;
361 struct mlx4_priv *priv = mlx4_priv(dev);
363 s_steer = &mlx4_priv(dev)->steer[port - 1];
365 mutex_lock(&priv->mcg_table.mutex);
367 if (get_promisc_qp(dev, 0, steer, qpn)) {
368 err = 0; /* Noting to do, already exists */
372 pqp = kmalloc(sizeof *pqp, GFP_KERNEL);
379 mailbox = mlx4_alloc_cmd_mailbox(dev);
380 if (IS_ERR(mailbox)) {
386 /* the promisc qp needs to be added for each one of the steering
387 * entries, if it already exists, needs to be added as a duplicate
389 list_for_each_entry(entry, &s_steer->steer_entries[steer], list) {
390 err = mlx4_READ_ENTRY(dev, entry->index, mailbox);
394 members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
395 prot = be32_to_cpu(mgm->members_count) >> 30;
397 for (i = 0; i < members_count; i++) {
398 if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qpn) {
399 /* Entry already exists, add to duplicates */
400 dqp = kmalloc(sizeof *dqp, GFP_KERNEL);
404 list_add_tail(&dqp->list, &entry->duplicates);
409 /* Need to add the qpn to mgm */
410 if (members_count == dev->caps.num_qp_per_mgm) {
415 mgm->qp[members_count++] = cpu_to_be32(qpn & MGM_QPN_MASK);
416 mgm->members_count = cpu_to_be32(members_count | (prot << 30));
417 err = mlx4_WRITE_ENTRY(dev, entry->index, mailbox);
423 /* add the new qpn to list of promisc qps */
424 list_add_tail(&pqp->list, &s_steer->promisc_qps[steer]);
425 /* now need to add all the promisc qps to default entry */
426 memset(mgm, 0, sizeof *mgm);
428 list_for_each_entry(dqp, &s_steer->promisc_qps[steer], list)
429 mgm->qp[members_count++] = cpu_to_be32(dqp->qpn & MGM_QPN_MASK);
430 mgm->members_count = cpu_to_be32(members_count | MLX4_PROT_ETH << 30);
432 err = mlx4_WRITE_PROMISC(dev, port, steer, mailbox);
436 mlx4_free_cmd_mailbox(dev, mailbox);
437 mutex_unlock(&priv->mcg_table.mutex);
441 list_del(&pqp->list);
443 mlx4_free_cmd_mailbox(dev, mailbox);
447 mutex_unlock(&priv->mcg_table.mutex);
451 static int remove_promisc_qp(struct mlx4_dev *dev, u8 port,
452 enum mlx4_steer_type steer, u32 qpn)
454 struct mlx4_priv *priv = mlx4_priv(dev);
455 struct mlx4_steer *s_steer;
456 struct mlx4_cmd_mailbox *mailbox;
457 struct mlx4_mgm *mgm;
458 struct mlx4_steer_index *entry;
459 struct mlx4_promisc_qp *pqp;
460 struct mlx4_promisc_qp *dqp;
463 bool back_to_list = false;
467 s_steer = &mlx4_priv(dev)->steer[port - 1];
468 mutex_lock(&priv->mcg_table.mutex);
470 pqp = get_promisc_qp(dev, 0, steer, qpn);
471 if (unlikely(!pqp)) {
472 mlx4_warn(dev, "QP %x is not promiscuous QP\n", qpn);
478 /*remove from list of promisc qps */
479 list_del(&pqp->list);
481 /* set the default entry not to include the removed one */
482 mailbox = mlx4_alloc_cmd_mailbox(dev);
483 if (IS_ERR(mailbox)) {
489 memset(mgm, 0, sizeof *mgm);
491 list_for_each_entry(dqp, &s_steer->promisc_qps[steer], list)
492 mgm->qp[members_count++] = cpu_to_be32(dqp->qpn & MGM_QPN_MASK);
493 mgm->members_count = cpu_to_be32(members_count | MLX4_PROT_ETH << 30);
495 err = mlx4_WRITE_PROMISC(dev, port, steer, mailbox);
499 /* remove the qp from all the steering entries*/
500 list_for_each_entry(entry, &s_steer->steer_entries[steer], list) {
502 list_for_each_entry(dqp, &entry->duplicates, list) {
503 if (dqp->qpn == qpn) {
509 /* a duplicate, no need to change the mgm,
510 * only update the duplicates list */
511 list_del(&dqp->list);
514 err = mlx4_READ_ENTRY(dev, entry->index, mailbox);
517 members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
518 for (loc = -1, i = 0; i < members_count; ++i)
519 if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qpn)
522 mgm->members_count = cpu_to_be32(--members_count |
523 (MLX4_PROT_ETH << 30));
524 mgm->qp[loc] = mgm->qp[i - 1];
527 err = mlx4_WRITE_ENTRY(dev, entry->index, mailbox);
535 mlx4_free_cmd_mailbox(dev, mailbox);
538 list_add_tail(&pqp->list, &s_steer->promisc_qps[steer]);
542 mutex_unlock(&priv->mcg_table.mutex);
547 * Caller must hold MCG table semaphore. gid and mgm parameters must
548 * be properly aligned for command interface.
550 * Returns 0 unless a firmware command error occurs.
552 * If GID is found in MGM or MGM is empty, *index = *hash, *prev = -1
553 * and *mgm holds MGM entry.
555 * if GID is found in AMGM, *index = index in AMGM, *prev = index of
556 * previous entry in hash chain and *mgm holds AMGM entry.
558 * If no AMGM exists for given gid, *index = -1, *prev = index of last
559 * entry in hash chain and *mgm holds end of hash chain.
561 static int find_entry(struct mlx4_dev *dev, u8 port,
562 u8 *gid, enum mlx4_protocol prot,
563 struct mlx4_cmd_mailbox *mgm_mailbox,
564 int *prev, int *index)
566 struct mlx4_cmd_mailbox *mailbox;
567 struct mlx4_mgm *mgm = mgm_mailbox->buf;
571 u8 op_mod = (prot == MLX4_PROT_ETH) ?
572 !!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER) : 0;
574 mailbox = mlx4_alloc_cmd_mailbox(dev);
579 memcpy(mgid, gid, 16);
581 err = mlx4_GID_HASH(dev, mailbox, &hash, op_mod);
582 mlx4_free_cmd_mailbox(dev, mailbox);
587 mlx4_dbg(dev, "Hash for %pI6 is %04x\n", gid, hash);
593 err = mlx4_READ_ENTRY(dev, *index, mgm_mailbox);
597 if (!(be32_to_cpu(mgm->members_count) & 0xffffff)) {
598 if (*index != hash) {
599 mlx4_err(dev, "Found zero MGID in AMGM.\n");
605 if (!memcmp(mgm->gid, gid, 16) &&
606 be32_to_cpu(mgm->members_count) >> 30 == prot)
610 *index = be32_to_cpu(mgm->next_gid_index) >> 6;
617 int mlx4_qp_attach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
618 int block_mcast_loopback, enum mlx4_protocol prot,
619 enum mlx4_steer_type steer)
621 struct mlx4_priv *priv = mlx4_priv(dev);
622 struct mlx4_cmd_mailbox *mailbox;
623 struct mlx4_mgm *mgm;
632 mailbox = mlx4_alloc_cmd_mailbox(dev);
634 return PTR_ERR(mailbox);
637 mutex_lock(&priv->mcg_table.mutex);
638 err = find_entry(dev, port, gid, prot,
639 mailbox, &prev, &index);
644 if (!(be32_to_cpu(mgm->members_count) & 0xffffff)) {
646 memcpy(mgm->gid, gid, 16);
651 index = mlx4_bitmap_alloc(&priv->mcg_table.bitmap);
653 mlx4_err(dev, "No AMGM entries left\n");
657 index += dev->caps.num_mgms;
660 memset(mgm, 0, sizeof *mgm);
661 memcpy(mgm->gid, gid, 16);
664 members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
665 if (members_count == dev->caps.num_qp_per_mgm) {
666 mlx4_err(dev, "MGM at index %x is full.\n", index);
671 for (i = 0; i < members_count; ++i)
672 if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qp->qpn) {
673 mlx4_dbg(dev, "QP %06x already a member of MGM\n", qp->qpn);
678 if (block_mcast_loopback)
679 mgm->qp[members_count++] = cpu_to_be32((qp->qpn & MGM_QPN_MASK) |
680 (1U << MGM_BLCK_LB_BIT));
682 mgm->qp[members_count++] = cpu_to_be32(qp->qpn & MGM_QPN_MASK);
684 mgm->members_count = cpu_to_be32(members_count | (u32) prot << 30);
686 err = mlx4_WRITE_ENTRY(dev, index, mailbox);
693 err = mlx4_READ_ENTRY(dev, prev, mailbox);
697 mgm->next_gid_index = cpu_to_be32(index << 6);
699 err = mlx4_WRITE_ENTRY(dev, prev, mailbox);
704 if (prot == MLX4_PROT_ETH) {
705 /* manage the steering entry for promisc mode */
707 new_steering_entry(dev, port, steer, index, qp->qpn);
709 existing_steering_entry(dev, port, steer,
712 if (err && link && index != -1) {
713 if (index < dev->caps.num_mgms)
714 mlx4_warn(dev, "Got AMGM index %d < %d",
715 index, dev->caps.num_mgms);
717 mlx4_bitmap_free(&priv->mcg_table.bitmap,
718 index - dev->caps.num_mgms);
720 mutex_unlock(&priv->mcg_table.mutex);
722 mlx4_free_cmd_mailbox(dev, mailbox);
726 int mlx4_qp_detach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
727 enum mlx4_protocol prot, enum mlx4_steer_type steer)
729 struct mlx4_priv *priv = mlx4_priv(dev);
730 struct mlx4_cmd_mailbox *mailbox;
731 struct mlx4_mgm *mgm;
737 bool removed_entry = false;
739 mailbox = mlx4_alloc_cmd_mailbox(dev);
741 return PTR_ERR(mailbox);
744 mutex_lock(&priv->mcg_table.mutex);
746 err = find_entry(dev, port, gid, prot,
747 mailbox, &prev, &index);
752 mlx4_err(dev, "MGID %pI6 not found\n", gid);
757 /* if this pq is also a promisc qp, it shouldn't be removed */
758 if (prot == MLX4_PROT_ETH &&
759 check_duplicate_entry(dev, port, steer, index, qp->qpn))
762 members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
763 for (loc = -1, i = 0; i < members_count; ++i)
764 if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qp->qpn)
768 mlx4_err(dev, "QP %06x not found in MGM\n", qp->qpn);
774 mgm->members_count = cpu_to_be32(--members_count | (u32) prot << 30);
775 mgm->qp[loc] = mgm->qp[i - 1];
778 if (prot == MLX4_PROT_ETH)
779 removed_entry = can_remove_steering_entry(dev, port, steer,
781 if (i != 1 && (prot != MLX4_PROT_ETH || !removed_entry)) {
782 err = mlx4_WRITE_ENTRY(dev, index, mailbox);
786 /* We are going to delete the entry, members count should be 0 */
787 mgm->members_count = cpu_to_be32((u32) prot << 30);
790 /* Remove entry from MGM */
791 int amgm_index = be32_to_cpu(mgm->next_gid_index) >> 6;
793 err = mlx4_READ_ENTRY(dev, amgm_index, mailbox);
797 memset(mgm->gid, 0, 16);
799 err = mlx4_WRITE_ENTRY(dev, index, mailbox);
804 if (amgm_index < dev->caps.num_mgms)
805 mlx4_warn(dev, "MGM entry %d had AMGM index %d < %d",
806 index, amgm_index, dev->caps.num_mgms);
808 mlx4_bitmap_free(&priv->mcg_table.bitmap,
809 amgm_index - dev->caps.num_mgms);
812 /* Remove entry from AMGM */
813 int cur_next_index = be32_to_cpu(mgm->next_gid_index) >> 6;
814 err = mlx4_READ_ENTRY(dev, prev, mailbox);
818 mgm->next_gid_index = cpu_to_be32(cur_next_index << 6);
820 err = mlx4_WRITE_ENTRY(dev, prev, mailbox);
824 if (index < dev->caps.num_mgms)
825 mlx4_warn(dev, "entry %d had next AMGM index %d < %d",
826 prev, index, dev->caps.num_mgms);
828 mlx4_bitmap_free(&priv->mcg_table.bitmap,
829 index - dev->caps.num_mgms);
833 mutex_unlock(&priv->mcg_table.mutex);
835 mlx4_free_cmd_mailbox(dev, mailbox);
839 static int mlx4_QP_ATTACH(struct mlx4_dev *dev, struct mlx4_qp *qp,
840 u8 gid[16], u8 attach, u8 block_loopback,
841 enum mlx4_protocol prot)
843 struct mlx4_cmd_mailbox *mailbox;
847 if (!mlx4_is_mfunc(dev))
850 mailbox = mlx4_alloc_cmd_mailbox(dev);
852 return PTR_ERR(mailbox);
854 memcpy(mailbox->buf, gid, 16);
857 if (attach && block_loopback)
860 err = mlx4_cmd(dev, mailbox->dma, qpn, attach,
861 MLX4_CMD_QP_ATTACH, MLX4_CMD_TIME_CLASS_A,
864 mlx4_free_cmd_mailbox(dev, mailbox);
868 int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
869 int block_mcast_loopback, enum mlx4_protocol prot)
871 if (prot == MLX4_PROT_ETH &&
872 !(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER))
875 if (prot == MLX4_PROT_ETH)
876 gid[7] |= (MLX4_MC_STEER << 1);
878 if (mlx4_is_mfunc(dev))
879 return mlx4_QP_ATTACH(dev, qp, gid, 1,
880 block_mcast_loopback, prot);
882 return mlx4_qp_attach_common(dev, qp, gid, block_mcast_loopback,
883 prot, MLX4_MC_STEER);
885 EXPORT_SYMBOL_GPL(mlx4_multicast_attach);
887 int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
888 enum mlx4_protocol prot)
890 if (prot == MLX4_PROT_ETH &&
891 !(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER))
894 if (prot == MLX4_PROT_ETH)
895 gid[7] |= (MLX4_MC_STEER << 1);
897 if (mlx4_is_mfunc(dev))
898 return mlx4_QP_ATTACH(dev, qp, gid, 0, 0, prot);
900 return mlx4_qp_detach_common(dev, qp, gid, prot, MLX4_MC_STEER);
902 EXPORT_SYMBOL_GPL(mlx4_multicast_detach);
904 int mlx4_unicast_attach(struct mlx4_dev *dev,
905 struct mlx4_qp *qp, u8 gid[16],
906 int block_mcast_loopback, enum mlx4_protocol prot)
908 if (prot == MLX4_PROT_ETH &&
909 !(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER))
912 if (prot == MLX4_PROT_ETH)
913 gid[7] |= (MLX4_UC_STEER << 1);
915 if (mlx4_is_mfunc(dev))
916 return mlx4_QP_ATTACH(dev, qp, gid, 1,
917 block_mcast_loopback, prot);
919 return mlx4_qp_attach_common(dev, qp, gid, block_mcast_loopback,
920 prot, MLX4_UC_STEER);
922 EXPORT_SYMBOL_GPL(mlx4_unicast_attach);
924 int mlx4_unicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp,
925 u8 gid[16], enum mlx4_protocol prot)
927 if (prot == MLX4_PROT_ETH &&
928 !(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER))
931 if (prot == MLX4_PROT_ETH)
932 gid[7] |= (MLX4_UC_STEER << 1);
934 if (mlx4_is_mfunc(dev))
935 return mlx4_QP_ATTACH(dev, qp, gid, 0, 0, prot);
937 return mlx4_qp_detach_common(dev, qp, gid, prot, MLX4_UC_STEER);
939 EXPORT_SYMBOL_GPL(mlx4_unicast_detach);
941 int mlx4_PROMISC_wrapper(struct mlx4_dev *dev, int slave,
942 struct mlx4_vhcr *vhcr,
943 struct mlx4_cmd_mailbox *inbox,
944 struct mlx4_cmd_mailbox *outbox,
945 struct mlx4_cmd_info *cmd)
947 u32 qpn = (u32) vhcr->in_param & 0xffffffff;
948 u8 port = vhcr->in_param >> 62;
949 enum mlx4_steer_type steer = vhcr->in_modifier;
951 /* Promiscuous unicast is not allowed in mfunc */
952 if (mlx4_is_mfunc(dev) && steer == MLX4_UC_STEER)
955 if (vhcr->op_modifier)
956 return add_promisc_qp(dev, port, steer, qpn);
958 return remove_promisc_qp(dev, port, steer, qpn);
961 static int mlx4_PROMISC(struct mlx4_dev *dev, u32 qpn,
962 enum mlx4_steer_type steer, u8 add, u8 port)
964 return mlx4_cmd(dev, (u64) qpn | (u64) port << 62, (u32) steer, add,
965 MLX4_CMD_PROMISC, MLX4_CMD_TIME_CLASS_A,
969 int mlx4_multicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port)
971 if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER))
974 if (mlx4_is_mfunc(dev))
975 return mlx4_PROMISC(dev, qpn, MLX4_MC_STEER, 1, port);
977 return add_promisc_qp(dev, port, MLX4_MC_STEER, qpn);
979 EXPORT_SYMBOL_GPL(mlx4_multicast_promisc_add);
981 int mlx4_multicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port)
983 if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER))
986 if (mlx4_is_mfunc(dev))
987 return mlx4_PROMISC(dev, qpn, MLX4_MC_STEER, 0, port);
989 return remove_promisc_qp(dev, port, MLX4_MC_STEER, qpn);
991 EXPORT_SYMBOL_GPL(mlx4_multicast_promisc_remove);
993 int mlx4_unicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port)
995 if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER))
998 if (mlx4_is_mfunc(dev))
999 return mlx4_PROMISC(dev, qpn, MLX4_UC_STEER, 1, port);
1001 return add_promisc_qp(dev, port, MLX4_UC_STEER, qpn);
1003 EXPORT_SYMBOL_GPL(mlx4_unicast_promisc_add);
1005 int mlx4_unicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port)
1007 if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER))
1010 if (mlx4_is_mfunc(dev))
1011 return mlx4_PROMISC(dev, qpn, MLX4_UC_STEER, 0, port);
1013 return remove_promisc_qp(dev, port, MLX4_UC_STEER, qpn);
1015 EXPORT_SYMBOL_GPL(mlx4_unicast_promisc_remove);
1017 int mlx4_init_mcg_table(struct mlx4_dev *dev)
1019 struct mlx4_priv *priv = mlx4_priv(dev);
1022 err = mlx4_bitmap_init(&priv->mcg_table.bitmap, dev->caps.num_amgms,
1023 dev->caps.num_amgms - 1, 0, 0);
1027 mutex_init(&priv->mcg_table.mutex);
1032 void mlx4_cleanup_mcg_table(struct mlx4_dev *dev)
1034 mlx4_bitmap_cleanup(&mlx4_priv(dev)->mcg_table.bitmap);