From: Jiri Pirko Date: Mon, 28 Aug 2023 06:16:45 +0000 (+0200) Subject: devlink: push shared buffer related code into separate file X-Git-Tag: v6.6.17~4098^2~5^2~12 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2b4d8bb0888930b4a26cd46ec067753228877488;p=platform%2Fkernel%2Flinux-rpi.git devlink: push shared buffer related code into separate file Cut out another chunk from leftover.c and put sb related code into a separate file. Signed-off-by: Jiri Pirko Link: https://lore.kernel.org/r/20230828061657.300667-4-jiri@resnulli.us Signed-off-by: Jakub Kicinski --- diff --git a/net/devlink/Makefile b/net/devlink/Makefile index 456bfb3..dcc508a 100644 --- a/net/devlink/Makefile +++ b/net/devlink/Makefile @@ -1,3 +1,3 @@ # SPDX-License-Identifier: GPL-2.0 -obj-y := leftover.o core.o netlink.o netlink_gen.o dev.o port.o health.o +obj-y := leftover.o core.o netlink.o netlink_gen.o dev.o port.o sb.o health.o \ diff --git a/net/devlink/devl_internal.h b/net/devlink/devl_internal.h index 7d01e20..e1a6b7a 100644 --- a/net/devlink/devl_internal.h +++ b/net/devlink/devl_internal.h @@ -220,6 +220,15 @@ int devlink_nl_cmd_port_unsplit_doit(struct sk_buff *skb, struct genl_info *info); int devlink_nl_cmd_port_new_doit(struct sk_buff *skb, struct genl_info *info); int devlink_nl_cmd_port_del_doit(struct sk_buff *skb, struct genl_info *info); +int devlink_nl_cmd_sb_pool_set_doit(struct sk_buff *skb, struct genl_info *info); +int devlink_nl_cmd_sb_port_pool_set_doit(struct sk_buff *skb, + struct genl_info *info); +int devlink_nl_cmd_sb_tc_pool_bind_set_doit(struct sk_buff *skb, + struct genl_info *info); +int devlink_nl_cmd_sb_occ_snapshot_doit(struct sk_buff *skb, + struct genl_info *info); +int devlink_nl_cmd_sb_occ_max_clear_doit(struct sk_buff *skb, + struct genl_info *info); int devlink_nl_cmd_health_reporter_set_doit(struct sk_buff *skb, struct genl_info *info); int devlink_nl_cmd_health_reporter_recover_doit(struct sk_buff *skb, diff --git a/net/devlink/leftover.c b/net/devlink/leftover.c index d14b40f..795bfdd 100644 --- a/net/devlink/leftover.c +++ b/net/devlink/leftover.c @@ -231,164 +231,6 @@ devlink_linecard_get_from_info(struct devlink *devlink, struct genl_info *info) return devlink_linecard_get_from_attrs(devlink, info->attrs); } -struct devlink_sb { - struct list_head list; - unsigned int index; - u32 size; - u16 ingress_pools_count; - u16 egress_pools_count; - u16 ingress_tc_count; - u16 egress_tc_count; -}; - -static u16 devlink_sb_pool_count(struct devlink_sb *devlink_sb) -{ - return devlink_sb->ingress_pools_count + devlink_sb->egress_pools_count; -} - -static struct devlink_sb *devlink_sb_get_by_index(struct devlink *devlink, - unsigned int sb_index) -{ - struct devlink_sb *devlink_sb; - - list_for_each_entry(devlink_sb, &devlink->sb_list, list) { - if (devlink_sb->index == sb_index) - return devlink_sb; - } - return NULL; -} - -static bool devlink_sb_index_exists(struct devlink *devlink, - unsigned int sb_index) -{ - return devlink_sb_get_by_index(devlink, sb_index); -} - -static struct devlink_sb *devlink_sb_get_from_attrs(struct devlink *devlink, - struct nlattr **attrs) -{ - if (attrs[DEVLINK_ATTR_SB_INDEX]) { - u32 sb_index = nla_get_u32(attrs[DEVLINK_ATTR_SB_INDEX]); - struct devlink_sb *devlink_sb; - - devlink_sb = devlink_sb_get_by_index(devlink, sb_index); - if (!devlink_sb) - return ERR_PTR(-ENODEV); - return devlink_sb; - } - return ERR_PTR(-EINVAL); -} - -static struct devlink_sb *devlink_sb_get_from_info(struct devlink *devlink, - struct genl_info *info) -{ - return devlink_sb_get_from_attrs(devlink, info->attrs); -} - -static int devlink_sb_pool_index_get_from_attrs(struct devlink_sb *devlink_sb, - struct nlattr **attrs, - u16 *p_pool_index) -{ - u16 val; - - if (!attrs[DEVLINK_ATTR_SB_POOL_INDEX]) - return -EINVAL; - - val = nla_get_u16(attrs[DEVLINK_ATTR_SB_POOL_INDEX]); - if (val >= devlink_sb_pool_count(devlink_sb)) - return -EINVAL; - *p_pool_index = val; - return 0; -} - -static int devlink_sb_pool_index_get_from_info(struct devlink_sb *devlink_sb, - struct genl_info *info, - u16 *p_pool_index) -{ - return devlink_sb_pool_index_get_from_attrs(devlink_sb, info->attrs, - p_pool_index); -} - -static int -devlink_sb_pool_type_get_from_attrs(struct nlattr **attrs, - enum devlink_sb_pool_type *p_pool_type) -{ - u8 val; - - if (!attrs[DEVLINK_ATTR_SB_POOL_TYPE]) - return -EINVAL; - - val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_TYPE]); - if (val != DEVLINK_SB_POOL_TYPE_INGRESS && - val != DEVLINK_SB_POOL_TYPE_EGRESS) - return -EINVAL; - *p_pool_type = val; - return 0; -} - -static int -devlink_sb_pool_type_get_from_info(struct genl_info *info, - enum devlink_sb_pool_type *p_pool_type) -{ - return devlink_sb_pool_type_get_from_attrs(info->attrs, p_pool_type); -} - -static int -devlink_sb_th_type_get_from_attrs(struct nlattr **attrs, - enum devlink_sb_threshold_type *p_th_type) -{ - u8 val; - - if (!attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]) - return -EINVAL; - - val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]); - if (val != DEVLINK_SB_THRESHOLD_TYPE_STATIC && - val != DEVLINK_SB_THRESHOLD_TYPE_DYNAMIC) - return -EINVAL; - *p_th_type = val; - return 0; -} - -static int -devlink_sb_th_type_get_from_info(struct genl_info *info, - enum devlink_sb_threshold_type *p_th_type) -{ - return devlink_sb_th_type_get_from_attrs(info->attrs, p_th_type); -} - -static int -devlink_sb_tc_index_get_from_attrs(struct devlink_sb *devlink_sb, - struct nlattr **attrs, - enum devlink_sb_pool_type pool_type, - u16 *p_tc_index) -{ - u16 val; - - if (!attrs[DEVLINK_ATTR_SB_TC_INDEX]) - return -EINVAL; - - val = nla_get_u16(attrs[DEVLINK_ATTR_SB_TC_INDEX]); - if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS && - val >= devlink_sb->ingress_tc_count) - return -EINVAL; - if (pool_type == DEVLINK_SB_POOL_TYPE_EGRESS && - val >= devlink_sb->egress_tc_count) - return -EINVAL; - *p_tc_index = val; - return 0; -} - -static int -devlink_sb_tc_index_get_from_info(struct devlink_sb *devlink_sb, - struct genl_info *info, - enum devlink_sb_pool_type pool_type, - u16 *p_tc_index) -{ - return devlink_sb_tc_index_get_from_attrs(devlink_sb, info->attrs, - pool_type, p_tc_index); -} - struct devlink_region { struct devlink *devlink; struct devlink_port *port; @@ -1053,825 +895,31 @@ static void devlink_linecards_notify_unregister(struct devlink *devlink) { struct devlink_linecard *linecard; - list_for_each_entry_reverse(linecard, &devlink->linecard_list, list) - devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_DEL); -} - -int devlink_nl_linecard_get_doit(struct sk_buff *skb, struct genl_info *info) -{ - struct devlink *devlink = info->user_ptr[0]; - struct devlink_linecard *linecard; - struct sk_buff *msg; - int err; - - linecard = devlink_linecard_get_from_info(devlink, info); - if (IS_ERR(linecard)) - return PTR_ERR(linecard); - - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); - if (!msg) - return -ENOMEM; - - mutex_lock(&linecard->state_lock); - err = devlink_nl_linecard_fill(msg, devlink, linecard, - DEVLINK_CMD_LINECARD_NEW, - info->snd_portid, info->snd_seq, 0, - info->extack); - mutex_unlock(&linecard->state_lock); - if (err) { - nlmsg_free(msg); - return err; - } - - return genlmsg_reply(msg, info); -} - -static int devlink_nl_linecard_get_dump_one(struct sk_buff *msg, - struct devlink *devlink, - struct netlink_callback *cb, - int flags) -{ - struct devlink_nl_dump_state *state = devlink_dump_state(cb); - struct devlink_linecard *linecard; - int idx = 0; - int err = 0; - - list_for_each_entry(linecard, &devlink->linecard_list, list) { - if (idx < state->idx) { - idx++; - continue; - } - mutex_lock(&linecard->state_lock); - err = devlink_nl_linecard_fill(msg, devlink, linecard, - DEVLINK_CMD_LINECARD_NEW, - NETLINK_CB(cb->skb).portid, - cb->nlh->nlmsg_seq, flags, - cb->extack); - mutex_unlock(&linecard->state_lock); - if (err) { - state->idx = idx; - break; - } - idx++; - } - - return err; -} - -int devlink_nl_linecard_get_dumpit(struct sk_buff *skb, - struct netlink_callback *cb) -{ - return devlink_nl_dumpit(skb, cb, devlink_nl_linecard_get_dump_one); -} - -static struct devlink_linecard_type * -devlink_linecard_type_lookup(struct devlink_linecard *linecard, - const char *type) -{ - struct devlink_linecard_type *linecard_type; - int i; - - for (i = 0; i < linecard->types_count; i++) { - linecard_type = &linecard->types[i]; - if (!strcmp(type, linecard_type->type)) - return linecard_type; - } - return NULL; -} - -static int devlink_linecard_type_set(struct devlink_linecard *linecard, - const char *type, - struct netlink_ext_ack *extack) -{ - const struct devlink_linecard_ops *ops = linecard->ops; - struct devlink_linecard_type *linecard_type; - int err; - - mutex_lock(&linecard->state_lock); - if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING) { - NL_SET_ERR_MSG(extack, "Line card is currently being provisioned"); - err = -EBUSY; - goto out; - } - if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONING) { - NL_SET_ERR_MSG(extack, "Line card is currently being unprovisioned"); - err = -EBUSY; - goto out; - } - - linecard_type = devlink_linecard_type_lookup(linecard, type); - if (!linecard_type) { - NL_SET_ERR_MSG(extack, "Unsupported line card type provided"); - err = -EINVAL; - goto out; - } - - if (linecard->state != DEVLINK_LINECARD_STATE_UNPROVISIONED && - linecard->state != DEVLINK_LINECARD_STATE_PROVISIONING_FAILED) { - NL_SET_ERR_MSG(extack, "Line card already provisioned"); - err = -EBUSY; - /* Check if the line card is provisioned in the same - * way the user asks. In case it is, make the operation - * to return success. - */ - if (ops->same_provision && - ops->same_provision(linecard, linecard->priv, - linecard_type->type, - linecard_type->priv)) - err = 0; - goto out; - } - - linecard->state = DEVLINK_LINECARD_STATE_PROVISIONING; - linecard->type = linecard_type->type; - devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); - mutex_unlock(&linecard->state_lock); - err = ops->provision(linecard, linecard->priv, linecard_type->type, - linecard_type->priv, extack); - if (err) { - /* Provisioning failed. Assume the linecard is unprovisioned - * for future operations. - */ - mutex_lock(&linecard->state_lock); - linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; - linecard->type = NULL; - devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); - mutex_unlock(&linecard->state_lock); - } - return err; - -out: - mutex_unlock(&linecard->state_lock); - return err; -} - -static int devlink_linecard_type_unset(struct devlink_linecard *linecard, - struct netlink_ext_ack *extack) -{ - int err; - - mutex_lock(&linecard->state_lock); - if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING) { - NL_SET_ERR_MSG(extack, "Line card is currently being provisioned"); - err = -EBUSY; - goto out; - } - if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONING) { - NL_SET_ERR_MSG(extack, "Line card is currently being unprovisioned"); - err = -EBUSY; - goto out; - } - if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING_FAILED) { - linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; - linecard->type = NULL; - devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); - err = 0; - goto out; - } - - if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONED) { - NL_SET_ERR_MSG(extack, "Line card is not provisioned"); - err = 0; - goto out; - } - linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONING; - devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); - mutex_unlock(&linecard->state_lock); - err = linecard->ops->unprovision(linecard, linecard->priv, - extack); - if (err) { - /* Unprovisioning failed. Assume the linecard is unprovisioned - * for future operations. - */ - mutex_lock(&linecard->state_lock); - linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; - linecard->type = NULL; - devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); - mutex_unlock(&linecard->state_lock); - } - return err; - -out: - mutex_unlock(&linecard->state_lock); - return err; -} - -static int devlink_nl_cmd_linecard_set_doit(struct sk_buff *skb, - struct genl_info *info) -{ - struct netlink_ext_ack *extack = info->extack; - struct devlink *devlink = info->user_ptr[0]; - struct devlink_linecard *linecard; - int err; - - linecard = devlink_linecard_get_from_info(devlink, info); - if (IS_ERR(linecard)) - return PTR_ERR(linecard); - - if (info->attrs[DEVLINK_ATTR_LINECARD_TYPE]) { - const char *type; - - type = nla_data(info->attrs[DEVLINK_ATTR_LINECARD_TYPE]); - if (strcmp(type, "")) { - err = devlink_linecard_type_set(linecard, type, extack); - if (err) - return err; - } else { - err = devlink_linecard_type_unset(linecard, extack); - if (err) - return err; - } - } - - return 0; -} - -static int devlink_nl_sb_fill(struct sk_buff *msg, struct devlink *devlink, - struct devlink_sb *devlink_sb, - enum devlink_command cmd, u32 portid, - u32 seq, int flags) -{ - void *hdr; - - hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); - if (!hdr) - return -EMSGSIZE; - - if (devlink_nl_put_handle(msg, devlink)) - goto nla_put_failure; - if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) - goto nla_put_failure; - if (nla_put_u32(msg, DEVLINK_ATTR_SB_SIZE, devlink_sb->size)) - goto nla_put_failure; - if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_POOL_COUNT, - devlink_sb->ingress_pools_count)) - goto nla_put_failure; - if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_POOL_COUNT, - devlink_sb->egress_pools_count)) - goto nla_put_failure; - if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_TC_COUNT, - devlink_sb->ingress_tc_count)) - goto nla_put_failure; - if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_TC_COUNT, - devlink_sb->egress_tc_count)) - goto nla_put_failure; - - genlmsg_end(msg, hdr); - return 0; - -nla_put_failure: - genlmsg_cancel(msg, hdr); - return -EMSGSIZE; -} - -int devlink_nl_sb_get_doit(struct sk_buff *skb, struct genl_info *info) -{ - struct devlink *devlink = info->user_ptr[0]; - struct devlink_sb *devlink_sb; - struct sk_buff *msg; - int err; - - devlink_sb = devlink_sb_get_from_info(devlink, info); - if (IS_ERR(devlink_sb)) - return PTR_ERR(devlink_sb); - - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); - if (!msg) - return -ENOMEM; - - err = devlink_nl_sb_fill(msg, devlink, devlink_sb, - DEVLINK_CMD_SB_NEW, - info->snd_portid, info->snd_seq, 0); - if (err) { - nlmsg_free(msg); - return err; - } - - return genlmsg_reply(msg, info); -} - -static int -devlink_nl_sb_get_dump_one(struct sk_buff *msg, struct devlink *devlink, - struct netlink_callback *cb, int flags) -{ - struct devlink_nl_dump_state *state = devlink_dump_state(cb); - struct devlink_sb *devlink_sb; - int idx = 0; - int err = 0; - - list_for_each_entry(devlink_sb, &devlink->sb_list, list) { - if (idx < state->idx) { - idx++; - continue; - } - err = devlink_nl_sb_fill(msg, devlink, devlink_sb, - DEVLINK_CMD_SB_NEW, - NETLINK_CB(cb->skb).portid, - cb->nlh->nlmsg_seq, flags); - if (err) { - state->idx = idx; - break; - } - idx++; - } - - return err; -} - -int devlink_nl_sb_get_dumpit(struct sk_buff *skb, struct netlink_callback *cb) -{ - return devlink_nl_dumpit(skb, cb, devlink_nl_sb_get_dump_one); -} - -static int devlink_nl_sb_pool_fill(struct sk_buff *msg, struct devlink *devlink, - struct devlink_sb *devlink_sb, - u16 pool_index, enum devlink_command cmd, - u32 portid, u32 seq, int flags) -{ - struct devlink_sb_pool_info pool_info; - void *hdr; - int err; - - err = devlink->ops->sb_pool_get(devlink, devlink_sb->index, - pool_index, &pool_info); - if (err) - return err; - - hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); - if (!hdr) - return -EMSGSIZE; - - if (devlink_nl_put_handle(msg, devlink)) - goto nla_put_failure; - if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) - goto nla_put_failure; - if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) - goto nla_put_failure; - if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_info.pool_type)) - goto nla_put_failure; - if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_SIZE, pool_info.size)) - goto nla_put_failure; - if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE, - pool_info.threshold_type)) - goto nla_put_failure; - if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_CELL_SIZE, - pool_info.cell_size)) - goto nla_put_failure; - - genlmsg_end(msg, hdr); - return 0; - -nla_put_failure: - genlmsg_cancel(msg, hdr); - return -EMSGSIZE; -} - -int devlink_nl_sb_pool_get_doit(struct sk_buff *skb, struct genl_info *info) -{ - struct devlink *devlink = info->user_ptr[0]; - struct devlink_sb *devlink_sb; - struct sk_buff *msg; - u16 pool_index; - int err; - - devlink_sb = devlink_sb_get_from_info(devlink, info); - if (IS_ERR(devlink_sb)) - return PTR_ERR(devlink_sb); - - err = devlink_sb_pool_index_get_from_info(devlink_sb, info, - &pool_index); - if (err) - return err; - - if (!devlink->ops->sb_pool_get) - return -EOPNOTSUPP; - - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); - if (!msg) - return -ENOMEM; - - err = devlink_nl_sb_pool_fill(msg, devlink, devlink_sb, pool_index, - DEVLINK_CMD_SB_POOL_NEW, - info->snd_portid, info->snd_seq, 0); - if (err) { - nlmsg_free(msg); - return err; - } - - return genlmsg_reply(msg, info); -} - -static int __sb_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, - struct devlink *devlink, - struct devlink_sb *devlink_sb, - u32 portid, u32 seq, int flags) -{ - u16 pool_count = devlink_sb_pool_count(devlink_sb); - u16 pool_index; - int err; - - for (pool_index = 0; pool_index < pool_count; pool_index++) { - if (*p_idx < start) { - (*p_idx)++; - continue; - } - err = devlink_nl_sb_pool_fill(msg, devlink, - devlink_sb, - pool_index, - DEVLINK_CMD_SB_POOL_NEW, - portid, seq, flags); - if (err) - return err; - (*p_idx)++; - } - return 0; -} - -static int -devlink_nl_sb_pool_get_dump_one(struct sk_buff *msg, struct devlink *devlink, - struct netlink_callback *cb, int flags) -{ - struct devlink_nl_dump_state *state = devlink_dump_state(cb); - struct devlink_sb *devlink_sb; - int err = 0; - int idx = 0; - - if (!devlink->ops->sb_pool_get) - return 0; - - list_for_each_entry(devlink_sb, &devlink->sb_list, list) { - err = __sb_pool_get_dumpit(msg, state->idx, &idx, - devlink, devlink_sb, - NETLINK_CB(cb->skb).portid, - cb->nlh->nlmsg_seq, flags); - if (err == -EOPNOTSUPP) { - err = 0; - } else if (err) { - state->idx = idx; - break; - } - } - - return err; -} - -int devlink_nl_sb_pool_get_dumpit(struct sk_buff *skb, - struct netlink_callback *cb) -{ - return devlink_nl_dumpit(skb, cb, devlink_nl_sb_pool_get_dump_one); -} - -static int devlink_sb_pool_set(struct devlink *devlink, unsigned int sb_index, - u16 pool_index, u32 size, - enum devlink_sb_threshold_type threshold_type, - struct netlink_ext_ack *extack) - -{ - const struct devlink_ops *ops = devlink->ops; - - if (ops->sb_pool_set) - return ops->sb_pool_set(devlink, sb_index, pool_index, - size, threshold_type, extack); - return -EOPNOTSUPP; -} - -static int devlink_nl_cmd_sb_pool_set_doit(struct sk_buff *skb, - struct genl_info *info) -{ - struct devlink *devlink = info->user_ptr[0]; - enum devlink_sb_threshold_type threshold_type; - struct devlink_sb *devlink_sb; - u16 pool_index; - u32 size; - int err; - - devlink_sb = devlink_sb_get_from_info(devlink, info); - if (IS_ERR(devlink_sb)) - return PTR_ERR(devlink_sb); - - err = devlink_sb_pool_index_get_from_info(devlink_sb, info, - &pool_index); - if (err) - return err; - - err = devlink_sb_th_type_get_from_info(info, &threshold_type); - if (err) - return err; - - if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_SB_POOL_SIZE)) - return -EINVAL; - - size = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]); - return devlink_sb_pool_set(devlink, devlink_sb->index, - pool_index, size, threshold_type, - info->extack); -} - -static int devlink_nl_sb_port_pool_fill(struct sk_buff *msg, - struct devlink *devlink, - struct devlink_port *devlink_port, - struct devlink_sb *devlink_sb, - u16 pool_index, - enum devlink_command cmd, - u32 portid, u32 seq, int flags) -{ - const struct devlink_ops *ops = devlink->ops; - u32 threshold; - void *hdr; - int err; - - err = ops->sb_port_pool_get(devlink_port, devlink_sb->index, - pool_index, &threshold); - if (err) - return err; - - hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); - if (!hdr) - return -EMSGSIZE; - - if (devlink_nl_put_handle(msg, devlink)) - goto nla_put_failure; - if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) - goto nla_put_failure; - if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) - goto nla_put_failure; - if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) - goto nla_put_failure; - if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) - goto nla_put_failure; - - if (ops->sb_occ_port_pool_get) { - u32 cur; - u32 max; - - err = ops->sb_occ_port_pool_get(devlink_port, devlink_sb->index, - pool_index, &cur, &max); - if (err && err != -EOPNOTSUPP) - goto sb_occ_get_failure; - if (!err) { - if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) - goto nla_put_failure; - if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) - goto nla_put_failure; - } - } - - genlmsg_end(msg, hdr); - return 0; - -nla_put_failure: - err = -EMSGSIZE; -sb_occ_get_failure: - genlmsg_cancel(msg, hdr); - return err; -} - -int devlink_nl_sb_port_pool_get_doit(struct sk_buff *skb, - struct genl_info *info) -{ - struct devlink_port *devlink_port = info->user_ptr[1]; - struct devlink *devlink = devlink_port->devlink; - struct devlink_sb *devlink_sb; - struct sk_buff *msg; - u16 pool_index; - int err; - - devlink_sb = devlink_sb_get_from_info(devlink, info); - if (IS_ERR(devlink_sb)) - return PTR_ERR(devlink_sb); - - err = devlink_sb_pool_index_get_from_info(devlink_sb, info, - &pool_index); - if (err) - return err; - - if (!devlink->ops->sb_port_pool_get) - return -EOPNOTSUPP; - - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); - if (!msg) - return -ENOMEM; - - err = devlink_nl_sb_port_pool_fill(msg, devlink, devlink_port, - devlink_sb, pool_index, - DEVLINK_CMD_SB_PORT_POOL_NEW, - info->snd_portid, info->snd_seq, 0); - if (err) { - nlmsg_free(msg); - return err; - } - - return genlmsg_reply(msg, info); -} - -static int __sb_port_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, - struct devlink *devlink, - struct devlink_sb *devlink_sb, - u32 portid, u32 seq, int flags) -{ - struct devlink_port *devlink_port; - u16 pool_count = devlink_sb_pool_count(devlink_sb); - unsigned long port_index; - u16 pool_index; - int err; - - xa_for_each(&devlink->ports, port_index, devlink_port) { - for (pool_index = 0; pool_index < pool_count; pool_index++) { - if (*p_idx < start) { - (*p_idx)++; - continue; - } - err = devlink_nl_sb_port_pool_fill(msg, devlink, - devlink_port, - devlink_sb, - pool_index, - DEVLINK_CMD_SB_PORT_POOL_NEW, - portid, seq, flags); - if (err) - return err; - (*p_idx)++; - } - } - return 0; -} - -static int -devlink_nl_sb_port_pool_get_dump_one(struct sk_buff *msg, - struct devlink *devlink, - struct netlink_callback *cb, int flags) -{ - struct devlink_nl_dump_state *state = devlink_dump_state(cb); - struct devlink_sb *devlink_sb; - int idx = 0; - int err = 0; - - if (!devlink->ops->sb_port_pool_get) - return 0; - - list_for_each_entry(devlink_sb, &devlink->sb_list, list) { - err = __sb_port_pool_get_dumpit(msg, state->idx, &idx, - devlink, devlink_sb, - NETLINK_CB(cb->skb).portid, - cb->nlh->nlmsg_seq, flags); - if (err == -EOPNOTSUPP) { - err = 0; - } else if (err) { - state->idx = idx; - break; - } - } - - return err; -} - -int devlink_nl_sb_port_pool_get_dumpit(struct sk_buff *skb, - struct netlink_callback *cb) -{ - return devlink_nl_dumpit(skb, cb, devlink_nl_sb_port_pool_get_dump_one); -} - -static int devlink_sb_port_pool_set(struct devlink_port *devlink_port, - unsigned int sb_index, u16 pool_index, - u32 threshold, - struct netlink_ext_ack *extack) - -{ - const struct devlink_ops *ops = devlink_port->devlink->ops; - - if (ops->sb_port_pool_set) - return ops->sb_port_pool_set(devlink_port, sb_index, - pool_index, threshold, extack); - return -EOPNOTSUPP; -} - -static int devlink_nl_cmd_sb_port_pool_set_doit(struct sk_buff *skb, - struct genl_info *info) -{ - struct devlink_port *devlink_port = info->user_ptr[1]; - struct devlink *devlink = info->user_ptr[0]; - struct devlink_sb *devlink_sb; - u16 pool_index; - u32 threshold; - int err; - - devlink_sb = devlink_sb_get_from_info(devlink, info); - if (IS_ERR(devlink_sb)) - return PTR_ERR(devlink_sb); - - err = devlink_sb_pool_index_get_from_info(devlink_sb, info, - &pool_index); - if (err) - return err; - - if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_SB_THRESHOLD)) - return -EINVAL; - - threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); - return devlink_sb_port_pool_set(devlink_port, devlink_sb->index, - pool_index, threshold, info->extack); -} - -static int -devlink_nl_sb_tc_pool_bind_fill(struct sk_buff *msg, struct devlink *devlink, - struct devlink_port *devlink_port, - struct devlink_sb *devlink_sb, u16 tc_index, - enum devlink_sb_pool_type pool_type, - enum devlink_command cmd, - u32 portid, u32 seq, int flags) -{ - const struct devlink_ops *ops = devlink->ops; - u16 pool_index; - u32 threshold; - void *hdr; - int err; - - err = ops->sb_tc_pool_bind_get(devlink_port, devlink_sb->index, - tc_index, pool_type, - &pool_index, &threshold); - if (err) - return err; - - hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); - if (!hdr) - return -EMSGSIZE; - - if (devlink_nl_put_handle(msg, devlink)) - goto nla_put_failure; - if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) - goto nla_put_failure; - if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) - goto nla_put_failure; - if (nla_put_u16(msg, DEVLINK_ATTR_SB_TC_INDEX, tc_index)) - goto nla_put_failure; - if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_type)) - goto nla_put_failure; - if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) - goto nla_put_failure; - if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) - goto nla_put_failure; - - if (ops->sb_occ_tc_port_bind_get) { - u32 cur; - u32 max; - - err = ops->sb_occ_tc_port_bind_get(devlink_port, - devlink_sb->index, - tc_index, pool_type, - &cur, &max); - if (err && err != -EOPNOTSUPP) - return err; - if (!err) { - if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) - goto nla_put_failure; - if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) - goto nla_put_failure; - } - } - - genlmsg_end(msg, hdr); - return 0; - -nla_put_failure: - genlmsg_cancel(msg, hdr); - return -EMSGSIZE; + list_for_each_entry_reverse(linecard, &devlink->linecard_list, list) + devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_DEL); } -int devlink_nl_sb_tc_pool_bind_get_doit(struct sk_buff *skb, - struct genl_info *info) +int devlink_nl_linecard_get_doit(struct sk_buff *skb, struct genl_info *info) { - struct devlink_port *devlink_port = info->user_ptr[1]; - struct devlink *devlink = devlink_port->devlink; - struct devlink_sb *devlink_sb; + struct devlink *devlink = info->user_ptr[0]; + struct devlink_linecard *linecard; struct sk_buff *msg; - enum devlink_sb_pool_type pool_type; - u16 tc_index; int err; - devlink_sb = devlink_sb_get_from_info(devlink, info); - if (IS_ERR(devlink_sb)) - return PTR_ERR(devlink_sb); - - err = devlink_sb_pool_type_get_from_info(info, &pool_type); - if (err) - return err; - - err = devlink_sb_tc_index_get_from_info(devlink_sb, info, - pool_type, &tc_index); - if (err) - return err; - - if (!devlink->ops->sb_tc_pool_bind_get) - return -EOPNOTSUPP; + linecard = devlink_linecard_get_from_info(devlink, info); + if (IS_ERR(linecard)) + return PTR_ERR(linecard); msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg) return -ENOMEM; - err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, devlink_port, - devlink_sb, tc_index, pool_type, - DEVLINK_CMD_SB_TC_POOL_BIND_NEW, - info->snd_portid, - info->snd_seq, 0); + mutex_lock(&linecard->state_lock); + err = devlink_nl_linecard_fill(msg, devlink, linecard, + DEVLINK_CMD_LINECARD_NEW, + info->snd_portid, info->snd_seq, 0, + info->extack); + mutex_unlock(&linecard->state_lock); if (err) { nlmsg_free(msg); return err; @@ -1880,179 +928,204 @@ int devlink_nl_sb_tc_pool_bind_get_doit(struct sk_buff *skb, return genlmsg_reply(msg, info); } -static int __sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, - int start, int *p_idx, - struct devlink *devlink, - struct devlink_sb *devlink_sb, - u32 portid, u32 seq, int flags) -{ - struct devlink_port *devlink_port; - unsigned long port_index; - u16 tc_index; - int err; - - xa_for_each(&devlink->ports, port_index, devlink_port) { - for (tc_index = 0; - tc_index < devlink_sb->ingress_tc_count; tc_index++) { - if (*p_idx < start) { - (*p_idx)++; - continue; - } - err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, - devlink_port, - devlink_sb, - tc_index, - DEVLINK_SB_POOL_TYPE_INGRESS, - DEVLINK_CMD_SB_TC_POOL_BIND_NEW, - portid, seq, - flags); - if (err) - return err; - (*p_idx)++; - } - for (tc_index = 0; - tc_index < devlink_sb->egress_tc_count; tc_index++) { - if (*p_idx < start) { - (*p_idx)++; - continue; - } - err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, - devlink_port, - devlink_sb, - tc_index, - DEVLINK_SB_POOL_TYPE_EGRESS, - DEVLINK_CMD_SB_TC_POOL_BIND_NEW, - portid, seq, - flags); - if (err) - return err; - (*p_idx)++; - } - } - return 0; -} - -static int devlink_nl_sb_tc_pool_bind_get_dump_one(struct sk_buff *msg, - struct devlink *devlink, - struct netlink_callback *cb, - int flags) +static int devlink_nl_linecard_get_dump_one(struct sk_buff *msg, + struct devlink *devlink, + struct netlink_callback *cb, + int flags) { struct devlink_nl_dump_state *state = devlink_dump_state(cb); - struct devlink_sb *devlink_sb; + struct devlink_linecard *linecard; int idx = 0; int err = 0; - if (!devlink->ops->sb_tc_pool_bind_get) - return 0; - - list_for_each_entry(devlink_sb, &devlink->sb_list, list) { - err = __sb_tc_pool_bind_get_dumpit(msg, state->idx, &idx, - devlink, devlink_sb, - NETLINK_CB(cb->skb).portid, - cb->nlh->nlmsg_seq, flags); - if (err == -EOPNOTSUPP) { - err = 0; - } else if (err) { + list_for_each_entry(linecard, &devlink->linecard_list, list) { + if (idx < state->idx) { + idx++; + continue; + } + mutex_lock(&linecard->state_lock); + err = devlink_nl_linecard_fill(msg, devlink, linecard, + DEVLINK_CMD_LINECARD_NEW, + NETLINK_CB(cb->skb).portid, + cb->nlh->nlmsg_seq, flags, + cb->extack); + mutex_unlock(&linecard->state_lock); + if (err) { state->idx = idx; break; } + idx++; } return err; } -int devlink_nl_sb_tc_pool_bind_get_dumpit(struct sk_buff *skb, - struct netlink_callback *cb) +int devlink_nl_linecard_get_dumpit(struct sk_buff *skb, + struct netlink_callback *cb) { - return devlink_nl_dumpit(skb, cb, - devlink_nl_sb_tc_pool_bind_get_dump_one); + return devlink_nl_dumpit(skb, cb, devlink_nl_linecard_get_dump_one); } -static int devlink_sb_tc_pool_bind_set(struct devlink_port *devlink_port, - unsigned int sb_index, u16 tc_index, - enum devlink_sb_pool_type pool_type, - u16 pool_index, u32 threshold, - struct netlink_ext_ack *extack) - +static struct devlink_linecard_type * +devlink_linecard_type_lookup(struct devlink_linecard *linecard, + const char *type) { - const struct devlink_ops *ops = devlink_port->devlink->ops; + struct devlink_linecard_type *linecard_type; + int i; - if (ops->sb_tc_pool_bind_set) - return ops->sb_tc_pool_bind_set(devlink_port, sb_index, - tc_index, pool_type, - pool_index, threshold, extack); - return -EOPNOTSUPP; + for (i = 0; i < linecard->types_count; i++) { + linecard_type = &linecard->types[i]; + if (!strcmp(type, linecard_type->type)) + return linecard_type; + } + return NULL; } -static int devlink_nl_cmd_sb_tc_pool_bind_set_doit(struct sk_buff *skb, - struct genl_info *info) +static int devlink_linecard_type_set(struct devlink_linecard *linecard, + const char *type, + struct netlink_ext_ack *extack) { - struct devlink_port *devlink_port = info->user_ptr[1]; - struct devlink *devlink = info->user_ptr[0]; - enum devlink_sb_pool_type pool_type; - struct devlink_sb *devlink_sb; - u16 tc_index; - u16 pool_index; - u32 threshold; + const struct devlink_linecard_ops *ops = linecard->ops; + struct devlink_linecard_type *linecard_type; int err; - devlink_sb = devlink_sb_get_from_info(devlink, info); - if (IS_ERR(devlink_sb)) - return PTR_ERR(devlink_sb); - - err = devlink_sb_pool_type_get_from_info(info, &pool_type); - if (err) - return err; + mutex_lock(&linecard->state_lock); + if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING) { + NL_SET_ERR_MSG(extack, "Line card is currently being provisioned"); + err = -EBUSY; + goto out; + } + if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONING) { + NL_SET_ERR_MSG(extack, "Line card is currently being unprovisioned"); + err = -EBUSY; + goto out; + } - err = devlink_sb_tc_index_get_from_info(devlink_sb, info, - pool_type, &tc_index); - if (err) - return err; + linecard_type = devlink_linecard_type_lookup(linecard, type); + if (!linecard_type) { + NL_SET_ERR_MSG(extack, "Unsupported line card type provided"); + err = -EINVAL; + goto out; + } - err = devlink_sb_pool_index_get_from_info(devlink_sb, info, - &pool_index); - if (err) - return err; + if (linecard->state != DEVLINK_LINECARD_STATE_UNPROVISIONED && + linecard->state != DEVLINK_LINECARD_STATE_PROVISIONING_FAILED) { + NL_SET_ERR_MSG(extack, "Line card already provisioned"); + err = -EBUSY; + /* Check if the line card is provisioned in the same + * way the user asks. In case it is, make the operation + * to return success. + */ + if (ops->same_provision && + ops->same_provision(linecard, linecard->priv, + linecard_type->type, + linecard_type->priv)) + err = 0; + goto out; + } - if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_SB_THRESHOLD)) - return -EINVAL; + linecard->state = DEVLINK_LINECARD_STATE_PROVISIONING; + linecard->type = linecard_type->type; + devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); + mutex_unlock(&linecard->state_lock); + err = ops->provision(linecard, linecard->priv, linecard_type->type, + linecard_type->priv, extack); + if (err) { + /* Provisioning failed. Assume the linecard is unprovisioned + * for future operations. + */ + mutex_lock(&linecard->state_lock); + linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; + linecard->type = NULL; + devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); + mutex_unlock(&linecard->state_lock); + } + return err; - threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); - return devlink_sb_tc_pool_bind_set(devlink_port, devlink_sb->index, - tc_index, pool_type, - pool_index, threshold, info->extack); +out: + mutex_unlock(&linecard->state_lock); + return err; } -static int devlink_nl_cmd_sb_occ_snapshot_doit(struct sk_buff *skb, - struct genl_info *info) +static int devlink_linecard_type_unset(struct devlink_linecard *linecard, + struct netlink_ext_ack *extack) { - struct devlink *devlink = info->user_ptr[0]; - const struct devlink_ops *ops = devlink->ops; - struct devlink_sb *devlink_sb; + int err; + + mutex_lock(&linecard->state_lock); + if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING) { + NL_SET_ERR_MSG(extack, "Line card is currently being provisioned"); + err = -EBUSY; + goto out; + } + if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONING) { + NL_SET_ERR_MSG(extack, "Line card is currently being unprovisioned"); + err = -EBUSY; + goto out; + } + if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING_FAILED) { + linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; + linecard->type = NULL; + devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); + err = 0; + goto out; + } - devlink_sb = devlink_sb_get_from_info(devlink, info); - if (IS_ERR(devlink_sb)) - return PTR_ERR(devlink_sb); + if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONED) { + NL_SET_ERR_MSG(extack, "Line card is not provisioned"); + err = 0; + goto out; + } + linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONING; + devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); + mutex_unlock(&linecard->state_lock); + err = linecard->ops->unprovision(linecard, linecard->priv, + extack); + if (err) { + /* Unprovisioning failed. Assume the linecard is unprovisioned + * for future operations. + */ + mutex_lock(&linecard->state_lock); + linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; + linecard->type = NULL; + devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); + mutex_unlock(&linecard->state_lock); + } + return err; - if (ops->sb_occ_snapshot) - return ops->sb_occ_snapshot(devlink, devlink_sb->index); - return -EOPNOTSUPP; +out: + mutex_unlock(&linecard->state_lock); + return err; } -static int devlink_nl_cmd_sb_occ_max_clear_doit(struct sk_buff *skb, - struct genl_info *info) +static int devlink_nl_cmd_linecard_set_doit(struct sk_buff *skb, + struct genl_info *info) { + struct netlink_ext_ack *extack = info->extack; struct devlink *devlink = info->user_ptr[0]; - const struct devlink_ops *ops = devlink->ops; - struct devlink_sb *devlink_sb; + struct devlink_linecard *linecard; + int err; - devlink_sb = devlink_sb_get_from_info(devlink, info); - if (IS_ERR(devlink_sb)) - return PTR_ERR(devlink_sb); + linecard = devlink_linecard_get_from_info(devlink, info); + if (IS_ERR(linecard)) + return PTR_ERR(linecard); + + if (info->attrs[DEVLINK_ATTR_LINECARD_TYPE]) { + const char *type; + + type = nla_data(info->attrs[DEVLINK_ATTR_LINECARD_TYPE]); + if (strcmp(type, "")) { + err = devlink_linecard_type_set(linecard, type, extack); + if (err) + return err; + } else { + err = devlink_linecard_type_unset(linecard, extack); + if (err) + return err; + } + } - if (ops->sb_occ_max_clear) - return ops->sb_occ_max_clear(devlink, devlink_sb->index); - return -EOPNOTSUPP; + return 0; } int devlink_rate_nodes_check(struct devlink *devlink, u16 mode, @@ -6215,69 +5288,6 @@ void devlink_linecard_nested_dl_set(struct devlink_linecard *linecard, } EXPORT_SYMBOL_GPL(devlink_linecard_nested_dl_set); -int devl_sb_register(struct devlink *devlink, unsigned int sb_index, - u32 size, u16 ingress_pools_count, - u16 egress_pools_count, u16 ingress_tc_count, - u16 egress_tc_count) -{ - struct devlink_sb *devlink_sb; - - lockdep_assert_held(&devlink->lock); - - if (devlink_sb_index_exists(devlink, sb_index)) - return -EEXIST; - - devlink_sb = kzalloc(sizeof(*devlink_sb), GFP_KERNEL); - if (!devlink_sb) - return -ENOMEM; - devlink_sb->index = sb_index; - devlink_sb->size = size; - devlink_sb->ingress_pools_count = ingress_pools_count; - devlink_sb->egress_pools_count = egress_pools_count; - devlink_sb->ingress_tc_count = ingress_tc_count; - devlink_sb->egress_tc_count = egress_tc_count; - list_add_tail(&devlink_sb->list, &devlink->sb_list); - return 0; -} -EXPORT_SYMBOL_GPL(devl_sb_register); - -int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, - u32 size, u16 ingress_pools_count, - u16 egress_pools_count, u16 ingress_tc_count, - u16 egress_tc_count) -{ - int err; - - devl_lock(devlink); - err = devl_sb_register(devlink, sb_index, size, ingress_pools_count, - egress_pools_count, ingress_tc_count, - egress_tc_count); - devl_unlock(devlink); - return err; -} -EXPORT_SYMBOL_GPL(devlink_sb_register); - -void devl_sb_unregister(struct devlink *devlink, unsigned int sb_index) -{ - struct devlink_sb *devlink_sb; - - lockdep_assert_held(&devlink->lock); - - devlink_sb = devlink_sb_get_by_index(devlink, sb_index); - WARN_ON(!devlink_sb); - list_del(&devlink_sb->list); - kfree(devlink_sb); -} -EXPORT_SYMBOL_GPL(devl_sb_unregister); - -void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index) -{ - devl_lock(devlink); - devl_sb_unregister(devlink, sb_index); - devl_unlock(devlink); -} -EXPORT_SYMBOL_GPL(devlink_sb_unregister); - /** * devl_dpipe_headers_register - register dpipe headers * diff --git a/net/devlink/sb.c b/net/devlink/sb.c new file mode 100644 index 0000000..bd677ff --- /dev/null +++ b/net/devlink/sb.c @@ -0,0 +1,996 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2016 Mellanox Technologies. All rights reserved. + * Copyright (c) 2016 Jiri Pirko + */ + +#include "devl_internal.h" + +struct devlink_sb { + struct list_head list; + unsigned int index; + u32 size; + u16 ingress_pools_count; + u16 egress_pools_count; + u16 ingress_tc_count; + u16 egress_tc_count; +}; + +static u16 devlink_sb_pool_count(struct devlink_sb *devlink_sb) +{ + return devlink_sb->ingress_pools_count + devlink_sb->egress_pools_count; +} + +static struct devlink_sb *devlink_sb_get_by_index(struct devlink *devlink, + unsigned int sb_index) +{ + struct devlink_sb *devlink_sb; + + list_for_each_entry(devlink_sb, &devlink->sb_list, list) { + if (devlink_sb->index == sb_index) + return devlink_sb; + } + return NULL; +} + +static bool devlink_sb_index_exists(struct devlink *devlink, + unsigned int sb_index) +{ + return devlink_sb_get_by_index(devlink, sb_index); +} + +static struct devlink_sb *devlink_sb_get_from_attrs(struct devlink *devlink, + struct nlattr **attrs) +{ + if (attrs[DEVLINK_ATTR_SB_INDEX]) { + u32 sb_index = nla_get_u32(attrs[DEVLINK_ATTR_SB_INDEX]); + struct devlink_sb *devlink_sb; + + devlink_sb = devlink_sb_get_by_index(devlink, sb_index); + if (!devlink_sb) + return ERR_PTR(-ENODEV); + return devlink_sb; + } + return ERR_PTR(-EINVAL); +} + +static struct devlink_sb *devlink_sb_get_from_info(struct devlink *devlink, + struct genl_info *info) +{ + return devlink_sb_get_from_attrs(devlink, info->attrs); +} + +static int devlink_sb_pool_index_get_from_attrs(struct devlink_sb *devlink_sb, + struct nlattr **attrs, + u16 *p_pool_index) +{ + u16 val; + + if (!attrs[DEVLINK_ATTR_SB_POOL_INDEX]) + return -EINVAL; + + val = nla_get_u16(attrs[DEVLINK_ATTR_SB_POOL_INDEX]); + if (val >= devlink_sb_pool_count(devlink_sb)) + return -EINVAL; + *p_pool_index = val; + return 0; +} + +static int devlink_sb_pool_index_get_from_info(struct devlink_sb *devlink_sb, + struct genl_info *info, + u16 *p_pool_index) +{ + return devlink_sb_pool_index_get_from_attrs(devlink_sb, info->attrs, + p_pool_index); +} + +static int +devlink_sb_pool_type_get_from_attrs(struct nlattr **attrs, + enum devlink_sb_pool_type *p_pool_type) +{ + u8 val; + + if (!attrs[DEVLINK_ATTR_SB_POOL_TYPE]) + return -EINVAL; + + val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_TYPE]); + if (val != DEVLINK_SB_POOL_TYPE_INGRESS && + val != DEVLINK_SB_POOL_TYPE_EGRESS) + return -EINVAL; + *p_pool_type = val; + return 0; +} + +static int +devlink_sb_pool_type_get_from_info(struct genl_info *info, + enum devlink_sb_pool_type *p_pool_type) +{ + return devlink_sb_pool_type_get_from_attrs(info->attrs, p_pool_type); +} + +static int +devlink_sb_th_type_get_from_attrs(struct nlattr **attrs, + enum devlink_sb_threshold_type *p_th_type) +{ + u8 val; + + if (!attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]) + return -EINVAL; + + val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]); + if (val != DEVLINK_SB_THRESHOLD_TYPE_STATIC && + val != DEVLINK_SB_THRESHOLD_TYPE_DYNAMIC) + return -EINVAL; + *p_th_type = val; + return 0; +} + +static int +devlink_sb_th_type_get_from_info(struct genl_info *info, + enum devlink_sb_threshold_type *p_th_type) +{ + return devlink_sb_th_type_get_from_attrs(info->attrs, p_th_type); +} + +static int +devlink_sb_tc_index_get_from_attrs(struct devlink_sb *devlink_sb, + struct nlattr **attrs, + enum devlink_sb_pool_type pool_type, + u16 *p_tc_index) +{ + u16 val; + + if (!attrs[DEVLINK_ATTR_SB_TC_INDEX]) + return -EINVAL; + + val = nla_get_u16(attrs[DEVLINK_ATTR_SB_TC_INDEX]); + if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS && + val >= devlink_sb->ingress_tc_count) + return -EINVAL; + if (pool_type == DEVLINK_SB_POOL_TYPE_EGRESS && + val >= devlink_sb->egress_tc_count) + return -EINVAL; + *p_tc_index = val; + return 0; +} + +static int +devlink_sb_tc_index_get_from_info(struct devlink_sb *devlink_sb, + struct genl_info *info, + enum devlink_sb_pool_type pool_type, + u16 *p_tc_index) +{ + return devlink_sb_tc_index_get_from_attrs(devlink_sb, info->attrs, + pool_type, p_tc_index); +} + +static int devlink_nl_sb_fill(struct sk_buff *msg, struct devlink *devlink, + struct devlink_sb *devlink_sb, + enum devlink_command cmd, u32 portid, + u32 seq, int flags) +{ + void *hdr; + + hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); + if (!hdr) + return -EMSGSIZE; + + if (devlink_nl_put_handle(msg, devlink)) + goto nla_put_failure; + if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) + goto nla_put_failure; + if (nla_put_u32(msg, DEVLINK_ATTR_SB_SIZE, devlink_sb->size)) + goto nla_put_failure; + if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_POOL_COUNT, + devlink_sb->ingress_pools_count)) + goto nla_put_failure; + if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_POOL_COUNT, + devlink_sb->egress_pools_count)) + goto nla_put_failure; + if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_TC_COUNT, + devlink_sb->ingress_tc_count)) + goto nla_put_failure; + if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_TC_COUNT, + devlink_sb->egress_tc_count)) + goto nla_put_failure; + + genlmsg_end(msg, hdr); + return 0; + +nla_put_failure: + genlmsg_cancel(msg, hdr); + return -EMSGSIZE; +} + +int devlink_nl_sb_get_doit(struct sk_buff *skb, struct genl_info *info) +{ + struct devlink *devlink = info->user_ptr[0]; + struct devlink_sb *devlink_sb; + struct sk_buff *msg; + int err; + + devlink_sb = devlink_sb_get_from_info(devlink, info); + if (IS_ERR(devlink_sb)) + return PTR_ERR(devlink_sb); + + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); + if (!msg) + return -ENOMEM; + + err = devlink_nl_sb_fill(msg, devlink, devlink_sb, + DEVLINK_CMD_SB_NEW, + info->snd_portid, info->snd_seq, 0); + if (err) { + nlmsg_free(msg); + return err; + } + + return genlmsg_reply(msg, info); +} + +static int +devlink_nl_sb_get_dump_one(struct sk_buff *msg, struct devlink *devlink, + struct netlink_callback *cb, int flags) +{ + struct devlink_nl_dump_state *state = devlink_dump_state(cb); + struct devlink_sb *devlink_sb; + int idx = 0; + int err = 0; + + list_for_each_entry(devlink_sb, &devlink->sb_list, list) { + if (idx < state->idx) { + idx++; + continue; + } + err = devlink_nl_sb_fill(msg, devlink, devlink_sb, + DEVLINK_CMD_SB_NEW, + NETLINK_CB(cb->skb).portid, + cb->nlh->nlmsg_seq, flags); + if (err) { + state->idx = idx; + break; + } + idx++; + } + + return err; +} + +int devlink_nl_sb_get_dumpit(struct sk_buff *skb, struct netlink_callback *cb) +{ + return devlink_nl_dumpit(skb, cb, devlink_nl_sb_get_dump_one); +} + +static int devlink_nl_sb_pool_fill(struct sk_buff *msg, struct devlink *devlink, + struct devlink_sb *devlink_sb, + u16 pool_index, enum devlink_command cmd, + u32 portid, u32 seq, int flags) +{ + struct devlink_sb_pool_info pool_info; + void *hdr; + int err; + + err = devlink->ops->sb_pool_get(devlink, devlink_sb->index, + pool_index, &pool_info); + if (err) + return err; + + hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); + if (!hdr) + return -EMSGSIZE; + + if (devlink_nl_put_handle(msg, devlink)) + goto nla_put_failure; + if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) + goto nla_put_failure; + if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) + goto nla_put_failure; + if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_info.pool_type)) + goto nla_put_failure; + if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_SIZE, pool_info.size)) + goto nla_put_failure; + if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE, + pool_info.threshold_type)) + goto nla_put_failure; + if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_CELL_SIZE, + pool_info.cell_size)) + goto nla_put_failure; + + genlmsg_end(msg, hdr); + return 0; + +nla_put_failure: + genlmsg_cancel(msg, hdr); + return -EMSGSIZE; +} + +int devlink_nl_sb_pool_get_doit(struct sk_buff *skb, struct genl_info *info) +{ + struct devlink *devlink = info->user_ptr[0]; + struct devlink_sb *devlink_sb; + struct sk_buff *msg; + u16 pool_index; + int err; + + devlink_sb = devlink_sb_get_from_info(devlink, info); + if (IS_ERR(devlink_sb)) + return PTR_ERR(devlink_sb); + + err = devlink_sb_pool_index_get_from_info(devlink_sb, info, + &pool_index); + if (err) + return err; + + if (!devlink->ops->sb_pool_get) + return -EOPNOTSUPP; + + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); + if (!msg) + return -ENOMEM; + + err = devlink_nl_sb_pool_fill(msg, devlink, devlink_sb, pool_index, + DEVLINK_CMD_SB_POOL_NEW, + info->snd_portid, info->snd_seq, 0); + if (err) { + nlmsg_free(msg); + return err; + } + + return genlmsg_reply(msg, info); +} + +static int __sb_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, + struct devlink *devlink, + struct devlink_sb *devlink_sb, + u32 portid, u32 seq, int flags) +{ + u16 pool_count = devlink_sb_pool_count(devlink_sb); + u16 pool_index; + int err; + + for (pool_index = 0; pool_index < pool_count; pool_index++) { + if (*p_idx < start) { + (*p_idx)++; + continue; + } + err = devlink_nl_sb_pool_fill(msg, devlink, + devlink_sb, + pool_index, + DEVLINK_CMD_SB_POOL_NEW, + portid, seq, flags); + if (err) + return err; + (*p_idx)++; + } + return 0; +} + +static int +devlink_nl_sb_pool_get_dump_one(struct sk_buff *msg, struct devlink *devlink, + struct netlink_callback *cb, int flags) +{ + struct devlink_nl_dump_state *state = devlink_dump_state(cb); + struct devlink_sb *devlink_sb; + int err = 0; + int idx = 0; + + if (!devlink->ops->sb_pool_get) + return 0; + + list_for_each_entry(devlink_sb, &devlink->sb_list, list) { + err = __sb_pool_get_dumpit(msg, state->idx, &idx, + devlink, devlink_sb, + NETLINK_CB(cb->skb).portid, + cb->nlh->nlmsg_seq, flags); + if (err == -EOPNOTSUPP) { + err = 0; + } else if (err) { + state->idx = idx; + break; + } + } + + return err; +} + +int devlink_nl_sb_pool_get_dumpit(struct sk_buff *skb, + struct netlink_callback *cb) +{ + return devlink_nl_dumpit(skb, cb, devlink_nl_sb_pool_get_dump_one); +} + +static int devlink_sb_pool_set(struct devlink *devlink, unsigned int sb_index, + u16 pool_index, u32 size, + enum devlink_sb_threshold_type threshold_type, + struct netlink_ext_ack *extack) + +{ + const struct devlink_ops *ops = devlink->ops; + + if (ops->sb_pool_set) + return ops->sb_pool_set(devlink, sb_index, pool_index, + size, threshold_type, extack); + return -EOPNOTSUPP; +} + +int devlink_nl_cmd_sb_pool_set_doit(struct sk_buff *skb, struct genl_info *info) +{ + struct devlink *devlink = info->user_ptr[0]; + enum devlink_sb_threshold_type threshold_type; + struct devlink_sb *devlink_sb; + u16 pool_index; + u32 size; + int err; + + devlink_sb = devlink_sb_get_from_info(devlink, info); + if (IS_ERR(devlink_sb)) + return PTR_ERR(devlink_sb); + + err = devlink_sb_pool_index_get_from_info(devlink_sb, info, + &pool_index); + if (err) + return err; + + err = devlink_sb_th_type_get_from_info(info, &threshold_type); + if (err) + return err; + + if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_SB_POOL_SIZE)) + return -EINVAL; + + size = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]); + return devlink_sb_pool_set(devlink, devlink_sb->index, + pool_index, size, threshold_type, + info->extack); +} + +static int devlink_nl_sb_port_pool_fill(struct sk_buff *msg, + struct devlink *devlink, + struct devlink_port *devlink_port, + struct devlink_sb *devlink_sb, + u16 pool_index, + enum devlink_command cmd, + u32 portid, u32 seq, int flags) +{ + const struct devlink_ops *ops = devlink->ops; + u32 threshold; + void *hdr; + int err; + + err = ops->sb_port_pool_get(devlink_port, devlink_sb->index, + pool_index, &threshold); + if (err) + return err; + + hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); + if (!hdr) + return -EMSGSIZE; + + if (devlink_nl_put_handle(msg, devlink)) + goto nla_put_failure; + if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) + goto nla_put_failure; + if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) + goto nla_put_failure; + if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) + goto nla_put_failure; + if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) + goto nla_put_failure; + + if (ops->sb_occ_port_pool_get) { + u32 cur; + u32 max; + + err = ops->sb_occ_port_pool_get(devlink_port, devlink_sb->index, + pool_index, &cur, &max); + if (err && err != -EOPNOTSUPP) + goto sb_occ_get_failure; + if (!err) { + if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) + goto nla_put_failure; + if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) + goto nla_put_failure; + } + } + + genlmsg_end(msg, hdr); + return 0; + +nla_put_failure: + err = -EMSGSIZE; +sb_occ_get_failure: + genlmsg_cancel(msg, hdr); + return err; +} + +int devlink_nl_sb_port_pool_get_doit(struct sk_buff *skb, + struct genl_info *info) +{ + struct devlink_port *devlink_port = info->user_ptr[1]; + struct devlink *devlink = devlink_port->devlink; + struct devlink_sb *devlink_sb; + struct sk_buff *msg; + u16 pool_index; + int err; + + devlink_sb = devlink_sb_get_from_info(devlink, info); + if (IS_ERR(devlink_sb)) + return PTR_ERR(devlink_sb); + + err = devlink_sb_pool_index_get_from_info(devlink_sb, info, + &pool_index); + if (err) + return err; + + if (!devlink->ops->sb_port_pool_get) + return -EOPNOTSUPP; + + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); + if (!msg) + return -ENOMEM; + + err = devlink_nl_sb_port_pool_fill(msg, devlink, devlink_port, + devlink_sb, pool_index, + DEVLINK_CMD_SB_PORT_POOL_NEW, + info->snd_portid, info->snd_seq, 0); + if (err) { + nlmsg_free(msg); + return err; + } + + return genlmsg_reply(msg, info); +} + +static int __sb_port_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, + struct devlink *devlink, + struct devlink_sb *devlink_sb, + u32 portid, u32 seq, int flags) +{ + struct devlink_port *devlink_port; + u16 pool_count = devlink_sb_pool_count(devlink_sb); + unsigned long port_index; + u16 pool_index; + int err; + + xa_for_each(&devlink->ports, port_index, devlink_port) { + for (pool_index = 0; pool_index < pool_count; pool_index++) { + if (*p_idx < start) { + (*p_idx)++; + continue; + } + err = devlink_nl_sb_port_pool_fill(msg, devlink, + devlink_port, + devlink_sb, + pool_index, + DEVLINK_CMD_SB_PORT_POOL_NEW, + portid, seq, flags); + if (err) + return err; + (*p_idx)++; + } + } + return 0; +} + +static int +devlink_nl_sb_port_pool_get_dump_one(struct sk_buff *msg, + struct devlink *devlink, + struct netlink_callback *cb, int flags) +{ + struct devlink_nl_dump_state *state = devlink_dump_state(cb); + struct devlink_sb *devlink_sb; + int idx = 0; + int err = 0; + + if (!devlink->ops->sb_port_pool_get) + return 0; + + list_for_each_entry(devlink_sb, &devlink->sb_list, list) { + err = __sb_port_pool_get_dumpit(msg, state->idx, &idx, + devlink, devlink_sb, + NETLINK_CB(cb->skb).portid, + cb->nlh->nlmsg_seq, flags); + if (err == -EOPNOTSUPP) { + err = 0; + } else if (err) { + state->idx = idx; + break; + } + } + + return err; +} + +int devlink_nl_sb_port_pool_get_dumpit(struct sk_buff *skb, + struct netlink_callback *cb) +{ + return devlink_nl_dumpit(skb, cb, devlink_nl_sb_port_pool_get_dump_one); +} + +static int devlink_sb_port_pool_set(struct devlink_port *devlink_port, + unsigned int sb_index, u16 pool_index, + u32 threshold, + struct netlink_ext_ack *extack) + +{ + const struct devlink_ops *ops = devlink_port->devlink->ops; + + if (ops->sb_port_pool_set) + return ops->sb_port_pool_set(devlink_port, sb_index, + pool_index, threshold, extack); + return -EOPNOTSUPP; +} + +int devlink_nl_cmd_sb_port_pool_set_doit(struct sk_buff *skb, + struct genl_info *info) +{ + struct devlink_port *devlink_port = info->user_ptr[1]; + struct devlink *devlink = info->user_ptr[0]; + struct devlink_sb *devlink_sb; + u16 pool_index; + u32 threshold; + int err; + + devlink_sb = devlink_sb_get_from_info(devlink, info); + if (IS_ERR(devlink_sb)) + return PTR_ERR(devlink_sb); + + err = devlink_sb_pool_index_get_from_info(devlink_sb, info, + &pool_index); + if (err) + return err; + + if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_SB_THRESHOLD)) + return -EINVAL; + + threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); + return devlink_sb_port_pool_set(devlink_port, devlink_sb->index, + pool_index, threshold, info->extack); +} + +static int +devlink_nl_sb_tc_pool_bind_fill(struct sk_buff *msg, struct devlink *devlink, + struct devlink_port *devlink_port, + struct devlink_sb *devlink_sb, u16 tc_index, + enum devlink_sb_pool_type pool_type, + enum devlink_command cmd, + u32 portid, u32 seq, int flags) +{ + const struct devlink_ops *ops = devlink->ops; + u16 pool_index; + u32 threshold; + void *hdr; + int err; + + err = ops->sb_tc_pool_bind_get(devlink_port, devlink_sb->index, + tc_index, pool_type, + &pool_index, &threshold); + if (err) + return err; + + hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); + if (!hdr) + return -EMSGSIZE; + + if (devlink_nl_put_handle(msg, devlink)) + goto nla_put_failure; + if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) + goto nla_put_failure; + if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) + goto nla_put_failure; + if (nla_put_u16(msg, DEVLINK_ATTR_SB_TC_INDEX, tc_index)) + goto nla_put_failure; + if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_type)) + goto nla_put_failure; + if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) + goto nla_put_failure; + if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) + goto nla_put_failure; + + if (ops->sb_occ_tc_port_bind_get) { + u32 cur; + u32 max; + + err = ops->sb_occ_tc_port_bind_get(devlink_port, + devlink_sb->index, + tc_index, pool_type, + &cur, &max); + if (err && err != -EOPNOTSUPP) + return err; + if (!err) { + if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) + goto nla_put_failure; + if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) + goto nla_put_failure; + } + } + + genlmsg_end(msg, hdr); + return 0; + +nla_put_failure: + genlmsg_cancel(msg, hdr); + return -EMSGSIZE; +} + +int devlink_nl_sb_tc_pool_bind_get_doit(struct sk_buff *skb, + struct genl_info *info) +{ + struct devlink_port *devlink_port = info->user_ptr[1]; + struct devlink *devlink = devlink_port->devlink; + struct devlink_sb *devlink_sb; + struct sk_buff *msg; + enum devlink_sb_pool_type pool_type; + u16 tc_index; + int err; + + devlink_sb = devlink_sb_get_from_info(devlink, info); + if (IS_ERR(devlink_sb)) + return PTR_ERR(devlink_sb); + + err = devlink_sb_pool_type_get_from_info(info, &pool_type); + if (err) + return err; + + err = devlink_sb_tc_index_get_from_info(devlink_sb, info, + pool_type, &tc_index); + if (err) + return err; + + if (!devlink->ops->sb_tc_pool_bind_get) + return -EOPNOTSUPP; + + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); + if (!msg) + return -ENOMEM; + + err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, devlink_port, + devlink_sb, tc_index, pool_type, + DEVLINK_CMD_SB_TC_POOL_BIND_NEW, + info->snd_portid, + info->snd_seq, 0); + if (err) { + nlmsg_free(msg); + return err; + } + + return genlmsg_reply(msg, info); +} + +static int __sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, + int start, int *p_idx, + struct devlink *devlink, + struct devlink_sb *devlink_sb, + u32 portid, u32 seq, int flags) +{ + struct devlink_port *devlink_port; + unsigned long port_index; + u16 tc_index; + int err; + + xa_for_each(&devlink->ports, port_index, devlink_port) { + for (tc_index = 0; + tc_index < devlink_sb->ingress_tc_count; tc_index++) { + if (*p_idx < start) { + (*p_idx)++; + continue; + } + err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, + devlink_port, + devlink_sb, + tc_index, + DEVLINK_SB_POOL_TYPE_INGRESS, + DEVLINK_CMD_SB_TC_POOL_BIND_NEW, + portid, seq, + flags); + if (err) + return err; + (*p_idx)++; + } + for (tc_index = 0; + tc_index < devlink_sb->egress_tc_count; tc_index++) { + if (*p_idx < start) { + (*p_idx)++; + continue; + } + err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, + devlink_port, + devlink_sb, + tc_index, + DEVLINK_SB_POOL_TYPE_EGRESS, + DEVLINK_CMD_SB_TC_POOL_BIND_NEW, + portid, seq, + flags); + if (err) + return err; + (*p_idx)++; + } + } + return 0; +} + +static int devlink_nl_sb_tc_pool_bind_get_dump_one(struct sk_buff *msg, + struct devlink *devlink, + struct netlink_callback *cb, + int flags) +{ + struct devlink_nl_dump_state *state = devlink_dump_state(cb); + struct devlink_sb *devlink_sb; + int idx = 0; + int err = 0; + + if (!devlink->ops->sb_tc_pool_bind_get) + return 0; + + list_for_each_entry(devlink_sb, &devlink->sb_list, list) { + err = __sb_tc_pool_bind_get_dumpit(msg, state->idx, &idx, + devlink, devlink_sb, + NETLINK_CB(cb->skb).portid, + cb->nlh->nlmsg_seq, flags); + if (err == -EOPNOTSUPP) { + err = 0; + } else if (err) { + state->idx = idx; + break; + } + } + + return err; +} + +int devlink_nl_sb_tc_pool_bind_get_dumpit(struct sk_buff *skb, + struct netlink_callback *cb) +{ + return devlink_nl_dumpit(skb, cb, + devlink_nl_sb_tc_pool_bind_get_dump_one); +} + +static int devlink_sb_tc_pool_bind_set(struct devlink_port *devlink_port, + unsigned int sb_index, u16 tc_index, + enum devlink_sb_pool_type pool_type, + u16 pool_index, u32 threshold, + struct netlink_ext_ack *extack) + +{ + const struct devlink_ops *ops = devlink_port->devlink->ops; + + if (ops->sb_tc_pool_bind_set) + return ops->sb_tc_pool_bind_set(devlink_port, sb_index, + tc_index, pool_type, + pool_index, threshold, extack); + return -EOPNOTSUPP; +} + +int devlink_nl_cmd_sb_tc_pool_bind_set_doit(struct sk_buff *skb, + struct genl_info *info) +{ + struct devlink_port *devlink_port = info->user_ptr[1]; + struct devlink *devlink = info->user_ptr[0]; + enum devlink_sb_pool_type pool_type; + struct devlink_sb *devlink_sb; + u16 tc_index; + u16 pool_index; + u32 threshold; + int err; + + devlink_sb = devlink_sb_get_from_info(devlink, info); + if (IS_ERR(devlink_sb)) + return PTR_ERR(devlink_sb); + + err = devlink_sb_pool_type_get_from_info(info, &pool_type); + if (err) + return err; + + err = devlink_sb_tc_index_get_from_info(devlink_sb, info, + pool_type, &tc_index); + if (err) + return err; + + err = devlink_sb_pool_index_get_from_info(devlink_sb, info, + &pool_index); + if (err) + return err; + + if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_SB_THRESHOLD)) + return -EINVAL; + + threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); + return devlink_sb_tc_pool_bind_set(devlink_port, devlink_sb->index, + tc_index, pool_type, + pool_index, threshold, info->extack); +} + +int devlink_nl_cmd_sb_occ_snapshot_doit(struct sk_buff *skb, + struct genl_info *info) +{ + struct devlink *devlink = info->user_ptr[0]; + const struct devlink_ops *ops = devlink->ops; + struct devlink_sb *devlink_sb; + + devlink_sb = devlink_sb_get_from_info(devlink, info); + if (IS_ERR(devlink_sb)) + return PTR_ERR(devlink_sb); + + if (ops->sb_occ_snapshot) + return ops->sb_occ_snapshot(devlink, devlink_sb->index); + return -EOPNOTSUPP; +} + +int devlink_nl_cmd_sb_occ_max_clear_doit(struct sk_buff *skb, + struct genl_info *info) +{ + struct devlink *devlink = info->user_ptr[0]; + const struct devlink_ops *ops = devlink->ops; + struct devlink_sb *devlink_sb; + + devlink_sb = devlink_sb_get_from_info(devlink, info); + if (IS_ERR(devlink_sb)) + return PTR_ERR(devlink_sb); + + if (ops->sb_occ_max_clear) + return ops->sb_occ_max_clear(devlink, devlink_sb->index); + return -EOPNOTSUPP; +} + +int devl_sb_register(struct devlink *devlink, unsigned int sb_index, + u32 size, u16 ingress_pools_count, + u16 egress_pools_count, u16 ingress_tc_count, + u16 egress_tc_count) +{ + struct devlink_sb *devlink_sb; + + lockdep_assert_held(&devlink->lock); + + if (devlink_sb_index_exists(devlink, sb_index)) + return -EEXIST; + + devlink_sb = kzalloc(sizeof(*devlink_sb), GFP_KERNEL); + if (!devlink_sb) + return -ENOMEM; + devlink_sb->index = sb_index; + devlink_sb->size = size; + devlink_sb->ingress_pools_count = ingress_pools_count; + devlink_sb->egress_pools_count = egress_pools_count; + devlink_sb->ingress_tc_count = ingress_tc_count; + devlink_sb->egress_tc_count = egress_tc_count; + list_add_tail(&devlink_sb->list, &devlink->sb_list); + return 0; +} +EXPORT_SYMBOL_GPL(devl_sb_register); + +int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, + u32 size, u16 ingress_pools_count, + u16 egress_pools_count, u16 ingress_tc_count, + u16 egress_tc_count) +{ + int err; + + devl_lock(devlink); + err = devl_sb_register(devlink, sb_index, size, ingress_pools_count, + egress_pools_count, ingress_tc_count, + egress_tc_count); + devl_unlock(devlink); + return err; +} +EXPORT_SYMBOL_GPL(devlink_sb_register); + +void devl_sb_unregister(struct devlink *devlink, unsigned int sb_index) +{ + struct devlink_sb *devlink_sb; + + lockdep_assert_held(&devlink->lock); + + devlink_sb = devlink_sb_get_by_index(devlink, sb_index); + WARN_ON(!devlink_sb); + list_del(&devlink_sb->list); + kfree(devlink_sb); +} +EXPORT_SYMBOL_GPL(devl_sb_unregister); + +void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index) +{ + devl_lock(devlink); + devl_sb_unregister(devlink, sb_index); + devl_unlock(devlink); +} +EXPORT_SYMBOL_GPL(devlink_sb_unregister);