diff options
Diffstat (limited to 'drivers/net/cxgbe/cxgbe_flow.c')
| -rw-r--r-- | drivers/net/cxgbe/cxgbe_flow.c | 845 |
1 files changed, 845 insertions, 0 deletions
diff --git a/drivers/net/cxgbe/cxgbe_flow.c b/drivers/net/cxgbe/cxgbe_flow.c new file mode 100644 index 00000000..01c945f1 --- /dev/null +++ b/drivers/net/cxgbe/cxgbe_flow.c @@ -0,0 +1,845 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2018 Chelsio Communications. + * All rights reserved. + */ +#include "common.h" +#include "cxgbe_flow.h" + +#define __CXGBE_FILL_FS(__v, __m, fs, elem, e) \ +do { \ + if (!((fs)->val.elem || (fs)->mask.elem)) { \ + (fs)->val.elem = (__v); \ + (fs)->mask.elem = (__m); \ + } else { \ + return rte_flow_error_set(e, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, \ + NULL, "a filter can be specified" \ + " only once"); \ + } \ +} while (0) + +#define __CXGBE_FILL_FS_MEMCPY(__v, __m, fs, elem) \ +do { \ + memcpy(&(fs)->val.elem, &(__v), sizeof(__v)); \ + memcpy(&(fs)->mask.elem, &(__m), sizeof(__m)); \ +} while (0) + +#define CXGBE_FILL_FS(v, m, elem) \ + __CXGBE_FILL_FS(v, m, fs, elem, e) + +#define CXGBE_FILL_FS_MEMCPY(v, m, elem) \ + __CXGBE_FILL_FS_MEMCPY(v, m, fs, elem) + +static int +cxgbe_validate_item(const struct rte_flow_item *i, struct rte_flow_error *e) +{ + /* rte_flow specification does not allow it. */ + if (!i->spec && (i->mask || i->last)) + return rte_flow_error_set(e, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, + i, "last or mask given without spec"); + /* + * We don't support it. + * Although, we can support values in last as 0's or last == spec. + * But this will not provide user with any additional functionality + * and will only increase the complexity for us. + */ + if (i->last) + return rte_flow_error_set(e, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, + i, "last is not supported by chelsio pmd"); + return 0; +} + +static void +cxgbe_fill_filter_region(struct adapter *adap, + struct ch_filter_specification *fs) +{ + struct tp_params *tp = &adap->params.tp; + u64 hash_filter_mask = tp->hash_filter_mask; + u64 ntuple_mask = 0; + + fs->cap = 0; + + if (!is_hashfilter(adap)) + return; + + if (fs->type) { + uint8_t biton[16] = {0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff}; + uint8_t bitoff[16] = {0}; + + if (!memcmp(fs->val.lip, bitoff, sizeof(bitoff)) || + !memcmp(fs->val.fip, bitoff, sizeof(bitoff)) || + memcmp(fs->mask.lip, biton, sizeof(biton)) || + memcmp(fs->mask.fip, biton, sizeof(biton))) + return; + } else { + uint32_t biton = 0xffffffff; + uint32_t bitoff = 0x0U; + + if (!memcmp(fs->val.lip, &bitoff, sizeof(bitoff)) || + !memcmp(fs->val.fip, &bitoff, sizeof(bitoff)) || + memcmp(fs->mask.lip, &biton, sizeof(biton)) || + memcmp(fs->mask.fip, &biton, sizeof(biton))) + return; + } + + if (!fs->val.lport || fs->mask.lport != 0xffff) + return; + if (!fs->val.fport || fs->mask.fport != 0xffff) + return; + + if (tp->protocol_shift >= 0) + ntuple_mask |= (u64)fs->mask.proto << tp->protocol_shift; + if (tp->ethertype_shift >= 0) + ntuple_mask |= (u64)fs->mask.ethtype << tp->ethertype_shift; + if (tp->port_shift >= 0) + ntuple_mask |= (u64)fs->mask.iport << tp->port_shift; + + if (ntuple_mask != hash_filter_mask) + return; + + fs->cap = 1; /* use hash region */ +} + +static int +ch_rte_parsetype_port(const void *dmask, const struct rte_flow_item *item, + struct ch_filter_specification *fs, + struct rte_flow_error *e) +{ + const struct rte_flow_item_phy_port *val = item->spec; + const struct rte_flow_item_phy_port *umask = item->mask; + const struct rte_flow_item_phy_port *mask; + + mask = umask ? umask : (const struct rte_flow_item_phy_port *)dmask; + + if (val->index > 0x7) + return rte_flow_error_set(e, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, + item, + "port index upto 0x7 is supported"); + + CXGBE_FILL_FS(val->index, mask->index, iport); + + return 0; +} + +static int +ch_rte_parsetype_udp(const void *dmask, const struct rte_flow_item *item, + struct ch_filter_specification *fs, + struct rte_flow_error *e) +{ + const struct rte_flow_item_udp *val = item->spec; + const struct rte_flow_item_udp *umask = item->mask; + const struct rte_flow_item_udp *mask; + + mask = umask ? umask : (const struct rte_flow_item_udp *)dmask; + + if (mask->hdr.dgram_len || mask->hdr.dgram_cksum) + return rte_flow_error_set(e, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, + item, + "udp: only src/dst port supported"); + + CXGBE_FILL_FS(IPPROTO_UDP, 0xff, proto); + if (!val) + return 0; + CXGBE_FILL_FS(be16_to_cpu(val->hdr.src_port), + be16_to_cpu(mask->hdr.src_port), fport); + CXGBE_FILL_FS(be16_to_cpu(val->hdr.dst_port), + be16_to_cpu(mask->hdr.dst_port), lport); + return 0; +} + +static int +ch_rte_parsetype_tcp(const void *dmask, const struct rte_flow_item *item, + struct ch_filter_specification *fs, + struct rte_flow_error *e) +{ + const struct rte_flow_item_tcp *val = item->spec; + const struct rte_flow_item_tcp *umask = item->mask; + const struct rte_flow_item_tcp *mask; + + mask = umask ? umask : (const struct rte_flow_item_tcp *)dmask; + + if (mask->hdr.sent_seq || mask->hdr.recv_ack || mask->hdr.data_off || + mask->hdr.tcp_flags || mask->hdr.rx_win || mask->hdr.cksum || + mask->hdr.tcp_urp) + return rte_flow_error_set(e, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, + item, + "tcp: only src/dst port supported"); + + CXGBE_FILL_FS(IPPROTO_TCP, 0xff, proto); + if (!val) + return 0; + CXGBE_FILL_FS(be16_to_cpu(val->hdr.src_port), + be16_to_cpu(mask->hdr.src_port), fport); + CXGBE_FILL_FS(be16_to_cpu(val->hdr.dst_port), + be16_to_cpu(mask->hdr.dst_port), lport); + return 0; +} + +static int +ch_rte_parsetype_ipv4(const void *dmask, const struct rte_flow_item *item, + struct ch_filter_specification *fs, + struct rte_flow_error *e) +{ + const struct rte_flow_item_ipv4 *val = item->spec; + const struct rte_flow_item_ipv4 *umask = item->mask; + const struct rte_flow_item_ipv4 *mask; + + mask = umask ? umask : (const struct rte_flow_item_ipv4 *)dmask; + + if (mask->hdr.time_to_live || mask->hdr.type_of_service) + return rte_flow_error_set(e, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, + item, "ttl/tos are not supported"); + + fs->type = FILTER_TYPE_IPV4; + CXGBE_FILL_FS(ETHER_TYPE_IPv4, 0xffff, ethtype); + if (!val) + return 0; /* ipv4 wild card */ + + CXGBE_FILL_FS(val->hdr.next_proto_id, mask->hdr.next_proto_id, proto); + CXGBE_FILL_FS_MEMCPY(val->hdr.dst_addr, mask->hdr.dst_addr, lip); + CXGBE_FILL_FS_MEMCPY(val->hdr.src_addr, mask->hdr.src_addr, fip); + + return 0; +} + +static int +ch_rte_parsetype_ipv6(const void *dmask, const struct rte_flow_item *item, + struct ch_filter_specification *fs, + struct rte_flow_error *e) +{ + const struct rte_flow_item_ipv6 *val = item->spec; + const struct rte_flow_item_ipv6 *umask = item->mask; + const struct rte_flow_item_ipv6 *mask; + + mask = umask ? umask : (const struct rte_flow_item_ipv6 *)dmask; + + if (mask->hdr.vtc_flow || + mask->hdr.payload_len || mask->hdr.hop_limits) + return rte_flow_error_set(e, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, + item, + "tc/flow/hop are not supported"); + + fs->type = FILTER_TYPE_IPV6; + CXGBE_FILL_FS(ETHER_TYPE_IPv6, 0xffff, ethtype); + if (!val) + return 0; /* ipv6 wild card */ + + CXGBE_FILL_FS(val->hdr.proto, mask->hdr.proto, proto); + CXGBE_FILL_FS_MEMCPY(val->hdr.dst_addr, mask->hdr.dst_addr, lip); + CXGBE_FILL_FS_MEMCPY(val->hdr.src_addr, mask->hdr.src_addr, fip); + + return 0; +} + +static int +cxgbe_rtef_parse_attr(struct rte_flow *flow, const struct rte_flow_attr *attr, + struct rte_flow_error *e) +{ + if (attr->egress) + return rte_flow_error_set(e, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR, + attr, "attribute:<egress> is" + " not supported !"); + if (attr->group > 0) + return rte_flow_error_set(e, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR, + attr, "group parameter is" + " not supported."); + + flow->fidx = attr->priority ? attr->priority - 1 : FILTER_ID_MAX; + + return 0; +} + +static inline int check_rxq(struct rte_eth_dev *dev, uint16_t rxq) +{ + struct port_info *pi = ethdev2pinfo(dev); + + if (rxq > pi->n_rx_qsets) + return -EINVAL; + return 0; +} + +static int cxgbe_validate_fidxondel(struct filter_entry *f, unsigned int fidx) +{ + struct adapter *adap = ethdev2adap(f->dev); + struct ch_filter_specification fs = f->fs; + + if (fidx >= adap->tids.nftids) { + dev_err(adap, "invalid flow index %d.\n", fidx); + return -EINVAL; + } + if (!is_filter_set(&adap->tids, fidx, fs.type)) { + dev_err(adap, "Already free fidx:%d f:%p\n", fidx, f); + return -EINVAL; + } + + return 0; +} + +static int +cxgbe_validate_fidxonadd(struct ch_filter_specification *fs, + struct adapter *adap, unsigned int fidx) +{ + if (is_filter_set(&adap->tids, fidx, fs->type)) { + dev_err(adap, "filter index: %d is busy.\n", fidx); + return -EBUSY; + } + if (fidx >= adap->tids.nftids) { + dev_err(adap, "filter index (%u) >= max(%u)\n", + fidx, adap->tids.nftids); + return -ERANGE; + } + + return 0; +} + +static int +cxgbe_verify_fidx(struct rte_flow *flow, unsigned int fidx, uint8_t del) +{ + if (flow->fs.cap) + return 0; /* Hash filters */ + return del ? cxgbe_validate_fidxondel(flow->f, fidx) : + cxgbe_validate_fidxonadd(&flow->fs, + ethdev2adap(flow->dev), fidx); +} + +static int cxgbe_get_fidx(struct rte_flow *flow, unsigned int *fidx) +{ + struct ch_filter_specification *fs = &flow->fs; + struct adapter *adap = ethdev2adap(flow->dev); + + /* For tcam get the next available slot, if default value specified */ + if (flow->fidx == FILTER_ID_MAX) { + int idx; + + idx = cxgbe_alloc_ftid(adap, fs->type); + if (idx < 0) { + dev_err(adap, "unable to get a filter index in tcam\n"); + return -ENOMEM; + } + *fidx = (unsigned int)idx; + } else { + *fidx = flow->fidx; + } + + return 0; +} + +static int +ch_rte_parse_atype_switch(const struct rte_flow_action *a, + struct ch_filter_specification *fs, + struct rte_flow_error *e) +{ + const struct rte_flow_action_phy_port *port; + + switch (a->type) { + case RTE_FLOW_ACTION_TYPE_PHY_PORT: + port = (const struct rte_flow_action_phy_port *)a->conf; + fs->eport = port->index; + break; + default: + /* We are not supposed to come here */ + return rte_flow_error_set(e, EINVAL, + RTE_FLOW_ERROR_TYPE_ACTION, a, + "Action not supported"); + } + + return 0; +} + +static int +cxgbe_rtef_parse_actions(struct rte_flow *flow, + const struct rte_flow_action action[], + struct rte_flow_error *e) +{ + struct ch_filter_specification *fs = &flow->fs; + const struct rte_flow_action_queue *q; + const struct rte_flow_action *a; + char abit = 0; + int ret; + + for (a = action; a->type != RTE_FLOW_ACTION_TYPE_END; a++) { + switch (a->type) { + case RTE_FLOW_ACTION_TYPE_VOID: + continue; + case RTE_FLOW_ACTION_TYPE_DROP: + if (abit++) + return rte_flow_error_set(e, EINVAL, + RTE_FLOW_ERROR_TYPE_ACTION, a, + "specify only 1 pass/drop"); + fs->action = FILTER_DROP; + break; + case RTE_FLOW_ACTION_TYPE_QUEUE: + q = (const struct rte_flow_action_queue *)a->conf; + if (!q) + return rte_flow_error_set(e, EINVAL, + RTE_FLOW_ERROR_TYPE_ACTION, q, + "specify rx queue index"); + if (check_rxq(flow->dev, q->index)) + return rte_flow_error_set(e, EINVAL, + RTE_FLOW_ERROR_TYPE_ACTION, q, + "Invalid rx queue"); + if (abit++) + return rte_flow_error_set(e, EINVAL, + RTE_FLOW_ERROR_TYPE_ACTION, a, + "specify only 1 pass/drop"); + fs->action = FILTER_PASS; + fs->dirsteer = 1; + fs->iq = q->index; + break; + case RTE_FLOW_ACTION_TYPE_COUNT: + fs->hitcnts = 1; + break; + case RTE_FLOW_ACTION_TYPE_PHY_PORT: + /* We allow multiple switch actions, but switch is + * not compatible with either queue or drop + */ + if (abit++ && fs->action != FILTER_SWITCH) + return rte_flow_error_set(e, EINVAL, + RTE_FLOW_ERROR_TYPE_ACTION, a, + "overlapping action specified"); + ret = ch_rte_parse_atype_switch(a, fs, e); + if (ret) + return ret; + fs->action = FILTER_SWITCH; + break; + default: + /* Not supported action : return error */ + return rte_flow_error_set(e, ENOTSUP, + RTE_FLOW_ERROR_TYPE_ACTION, + a, "Action not supported"); + } + } + + return 0; +} + +struct chrte_fparse parseitem[] = { + [RTE_FLOW_ITEM_TYPE_PHY_PORT] = { + .fptr = ch_rte_parsetype_port, + .dmask = &(const struct rte_flow_item_phy_port){ + .index = 0x7, + } + }, + + [RTE_FLOW_ITEM_TYPE_IPV4] = { + .fptr = ch_rte_parsetype_ipv4, + .dmask = &rte_flow_item_ipv4_mask, + }, + + [RTE_FLOW_ITEM_TYPE_IPV6] = { + .fptr = ch_rte_parsetype_ipv6, + .dmask = &rte_flow_item_ipv6_mask, + }, + + [RTE_FLOW_ITEM_TYPE_UDP] = { + .fptr = ch_rte_parsetype_udp, + .dmask = &rte_flow_item_udp_mask, + }, + + [RTE_FLOW_ITEM_TYPE_TCP] = { + .fptr = ch_rte_parsetype_tcp, + .dmask = &rte_flow_item_tcp_mask, + }, +}; + +static int +cxgbe_rtef_parse_items(struct rte_flow *flow, + const struct rte_flow_item items[], + struct rte_flow_error *e) +{ + struct adapter *adap = ethdev2adap(flow->dev); + const struct rte_flow_item *i; + char repeat[ARRAY_SIZE(parseitem)] = {0}; + + for (i = items; i->type != RTE_FLOW_ITEM_TYPE_END; i++) { + struct chrte_fparse *idx = &flow->item_parser[i->type]; + int ret; + + if (i->type > ARRAY_SIZE(parseitem)) + return rte_flow_error_set(e, ENOTSUP, + RTE_FLOW_ERROR_TYPE_ITEM, + i, "Item not supported"); + + switch (i->type) { + case RTE_FLOW_ITEM_TYPE_VOID: + continue; + default: + /* check if item is repeated */ + if (repeat[i->type]) + return rte_flow_error_set(e, ENOTSUP, + RTE_FLOW_ERROR_TYPE_ITEM, i, + "parse items cannot be repeated (except void)"); + repeat[i->type] = 1; + + /* validate the item */ + ret = cxgbe_validate_item(i, e); + if (ret) + return ret; + + if (!idx || !idx->fptr) { + return rte_flow_error_set(e, ENOTSUP, + RTE_FLOW_ERROR_TYPE_ITEM, i, + "Item not supported"); + } else { + ret = idx->fptr(idx->dmask, i, &flow->fs, e); + if (ret) + return ret; + } + } + } + + cxgbe_fill_filter_region(adap, &flow->fs); + + return 0; +} + +static int +cxgbe_flow_parse(struct rte_flow *flow, + const struct rte_flow_attr *attr, + const struct rte_flow_item item[], + const struct rte_flow_action action[], + struct rte_flow_error *e) +{ + int ret; + + /* parse user request into ch_filter_specification */ + ret = cxgbe_rtef_parse_attr(flow, attr, e); + if (ret) + return ret; + ret = cxgbe_rtef_parse_items(flow, item, e); + if (ret) + return ret; + return cxgbe_rtef_parse_actions(flow, action, e); +} + +static int __cxgbe_flow_create(struct rte_eth_dev *dev, struct rte_flow *flow) +{ + struct ch_filter_specification *fs = &flow->fs; + struct adapter *adap = ethdev2adap(dev); + struct tid_info *t = &adap->tids; + struct filter_ctx ctx; + unsigned int fidx; + int err; + + if (cxgbe_get_fidx(flow, &fidx)) + return -ENOMEM; + if (cxgbe_verify_fidx(flow, fidx, 0)) + return -1; + + t4_init_completion(&ctx.completion); + /* go create the filter */ + err = cxgbe_set_filter(dev, fidx, fs, &ctx); + if (err) { + dev_err(adap, "Error %d while creating filter.\n", err); + return err; + } + + /* Poll the FW for reply */ + err = cxgbe_poll_for_completion(&adap->sge.fw_evtq, + CXGBE_FLOW_POLL_US, + CXGBE_FLOW_POLL_CNT, + &ctx.completion); + if (err) { + dev_err(adap, "Filter set operation timed out (%d)\n", err); + return err; + } + if (ctx.result) { + dev_err(adap, "Hardware error %d while creating the filter.\n", + ctx.result); + return ctx.result; + } + + if (fs->cap) { /* to destroy the filter */ + flow->fidx = ctx.tid; + flow->f = lookup_tid(t, ctx.tid); + } else { + flow->fidx = fidx; + flow->f = &adap->tids.ftid_tab[fidx]; + } + + return 0; +} + +static struct rte_flow * +cxgbe_flow_create(struct rte_eth_dev *dev, + const struct rte_flow_attr *attr, + const struct rte_flow_item item[], + const struct rte_flow_action action[], + struct rte_flow_error *e) +{ + struct rte_flow *flow; + int ret; + + flow = t4_os_alloc(sizeof(struct rte_flow)); + if (!flow) { + rte_flow_error_set(e, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE, + NULL, "Unable to allocate memory for" + " filter_entry"); + return NULL; + } + + flow->item_parser = parseitem; + flow->dev = dev; + + if (cxgbe_flow_parse(flow, attr, item, action, e)) { + t4_os_free(flow); + return NULL; + } + + /* go, interact with cxgbe_filter */ + ret = __cxgbe_flow_create(dev, flow); + if (ret) { + rte_flow_error_set(e, ret, RTE_FLOW_ERROR_TYPE_HANDLE, + NULL, "Unable to create flow rule"); + t4_os_free(flow); + return NULL; + } + + flow->f->private = flow; /* Will be used during flush */ + + return flow; +} + +static int __cxgbe_flow_destroy(struct rte_eth_dev *dev, struct rte_flow *flow) +{ + struct adapter *adap = ethdev2adap(dev); + struct filter_entry *f = flow->f; + struct ch_filter_specification *fs; + struct filter_ctx ctx; + int err; + + fs = &f->fs; + if (cxgbe_verify_fidx(flow, flow->fidx, 1)) + return -1; + + t4_init_completion(&ctx.completion); + err = cxgbe_del_filter(dev, flow->fidx, fs, &ctx); + if (err) { + dev_err(adap, "Error %d while deleting filter.\n", err); + return err; + } + + /* Poll the FW for reply */ + err = cxgbe_poll_for_completion(&adap->sge.fw_evtq, + CXGBE_FLOW_POLL_US, + CXGBE_FLOW_POLL_CNT, + &ctx.completion); + if (err) { + dev_err(adap, "Filter delete operation timed out (%d)\n", err); + return err; + } + if (ctx.result) { + dev_err(adap, "Hardware error %d while deleting the filter.\n", + ctx.result); + return ctx.result; + } + + return 0; +} + +static int +cxgbe_flow_destroy(struct rte_eth_dev *dev, struct rte_flow *flow, + struct rte_flow_error *e) +{ + int ret; + + ret = __cxgbe_flow_destroy(dev, flow); + if (ret) + return rte_flow_error_set(e, ret, RTE_FLOW_ERROR_TYPE_HANDLE, + flow, "error destroying filter."); + t4_os_free(flow); + return 0; +} + +static int __cxgbe_flow_query(struct rte_flow *flow, u64 *count, + u64 *byte_count) +{ + struct adapter *adap = ethdev2adap(flow->dev); + struct ch_filter_specification fs = flow->f->fs; + unsigned int fidx = flow->fidx; + int ret = 0; + + ret = cxgbe_get_filter_count(adap, fidx, count, fs.cap, 0); + if (ret) + return ret; + return cxgbe_get_filter_count(adap, fidx, byte_count, fs.cap, 1); +} + +static int +cxgbe_flow_query(struct rte_eth_dev *dev, struct rte_flow *flow, + const struct rte_flow_action *action, void *data, + struct rte_flow_error *e) +{ + struct ch_filter_specification fs; + struct rte_flow_query_count *c; + struct filter_entry *f; + int ret; + + RTE_SET_USED(dev); + + f = flow->f; + fs = f->fs; + + if (action->type != RTE_FLOW_ACTION_TYPE_COUNT) + return rte_flow_error_set(e, ENOTSUP, + RTE_FLOW_ERROR_TYPE_ACTION, NULL, + "only count supported for query"); + + /* + * This is a valid operation, Since we are allowed to do chelsio + * specific operations in rte side of our code but not vise-versa + * + * So, fs can be queried/modified here BUT rte_flow_query_count + * cannot be worked on by the lower layer since we want to maintain + * it as rte_flow agnostic. + */ + if (!fs.hitcnts) + return rte_flow_error_set(e, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, + &fs, "filter hit counters were not" + " enabled during filter creation"); + + c = (struct rte_flow_query_count *)data; + ret = __cxgbe_flow_query(flow, &c->hits, &c->bytes); + if (ret) + return rte_flow_error_set(e, -ret, RTE_FLOW_ERROR_TYPE_ACTION, + f, "cxgbe pmd failed to" + " perform query"); + + /* Query was successful */ + c->bytes_set = 1; + c->hits_set = 1; + + return 0; /* success / partial_success */ +} + +static int +cxgbe_flow_validate(struct rte_eth_dev *dev, + const struct rte_flow_attr *attr, + const struct rte_flow_item item[], + const struct rte_flow_action action[], + struct rte_flow_error *e) +{ + struct adapter *adap = ethdev2adap(dev); + struct rte_flow *flow; + unsigned int fidx; + int ret; + + flow = t4_os_alloc(sizeof(struct rte_flow)); + if (!flow) + return rte_flow_error_set(e, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE, + NULL, + "Unable to allocate memory for filter_entry"); + + flow->item_parser = parseitem; + flow->dev = dev; + + ret = cxgbe_flow_parse(flow, attr, item, action, e); + if (ret) { + t4_os_free(flow); + return ret; + } + + if (validate_filter(adap, &flow->fs)) { + t4_os_free(flow); + return rte_flow_error_set(e, EINVAL, RTE_FLOW_ERROR_TYPE_HANDLE, + NULL, + "validation failed. Check f/w config file."); + } + + if (cxgbe_get_fidx(flow, &fidx)) { + t4_os_free(flow); + return rte_flow_error_set(e, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE, + NULL, "no memory in tcam."); + } + + if (cxgbe_verify_fidx(flow, fidx, 0)) { + t4_os_free(flow); + return rte_flow_error_set(e, EINVAL, RTE_FLOW_ERROR_TYPE_HANDLE, + NULL, "validation failed"); + } + + t4_os_free(flow); + return 0; +} + +/* + * @ret : > 0 filter destroyed succsesfully + * < 0 error destroying filter + * == 1 filter not active / not found + */ +static int +cxgbe_check_n_destroy(struct filter_entry *f, struct rte_eth_dev *dev, + struct rte_flow_error *e) +{ + if (f && (f->valid || f->pending) && + f->dev == dev && /* Only if user has asked for this port */ + f->private) /* We (rte_flow) created this filter */ + return cxgbe_flow_destroy(dev, (struct rte_flow *)f->private, + e); + return 1; +} + +static int cxgbe_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *e) +{ + struct adapter *adap = ethdev2adap(dev); + unsigned int i; + int ret = 0; + + if (adap->tids.ftid_tab) { + struct filter_entry *f = &adap->tids.ftid_tab[0]; + + for (i = 0; i < adap->tids.nftids; i++, f++) { + ret = cxgbe_check_n_destroy(f, dev, e); + if (ret < 0) + goto out; + } + } + + if (is_hashfilter(adap) && adap->tids.tid_tab) { + struct filter_entry *f; + + for (i = adap->tids.hash_base; i <= adap->tids.ntids; i++) { + f = (struct filter_entry *)adap->tids.tid_tab[i]; + + ret = cxgbe_check_n_destroy(f, dev, e); + if (ret < 0) + goto out; + } + } + +out: + return ret >= 0 ? 0 : ret; +} + +static const struct rte_flow_ops cxgbe_flow_ops = { + .validate = cxgbe_flow_validate, + .create = cxgbe_flow_create, + .destroy = cxgbe_flow_destroy, + .flush = cxgbe_flow_flush, + .query = cxgbe_flow_query, + .isolate = NULL, +}; + +int +cxgbe_dev_filter_ctrl(struct rte_eth_dev *dev, + enum rte_filter_type filter_type, + enum rte_filter_op filter_op, + void *arg) +{ + int ret = 0; + + RTE_SET_USED(dev); + switch (filter_type) { + case RTE_ETH_FILTER_GENERIC: + if (filter_op != RTE_ETH_FILTER_GET) + return -EINVAL; + *(const void **)arg = &cxgbe_flow_ops; + break; + default: + ret = -ENOTSUP; + break; + } + return ret; +} |