From: Mina Almasry <almasrymina@google.com> To: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org Cc: "Mina Almasry" <almasrymina@google.com>, "David S. Miller" <davem@davemloft.net>, "Eric Dumazet" <edumazet@google.com>, "Jakub Kicinski" <kuba@kernel.org>, "Paolo Abeni" <pabeni@redhat.com>, "Jesper Dangaard Brouer" <hawk@kernel.org>, "Ilias Apalodimas" <ilias.apalodimas@linaro.org>, "Arnd Bergmann" <arnd@arndb.de>, "David Ahern" <dsahern@kernel.org>, "Willem de Bruijn" <willemdebruijn.kernel@gmail.com>, "Shuah Khan" <shuah@kernel.org>, "Sumit Semwal" <sumit.semwal@linaro.org>, "Christian König" <christian.koenig@amd.com>, "Shakeel Butt" <shakeelb@google.com>, "Jeroen de Borst" <jeroendb@google.com>, "Praveen Kaligineedi" <pkaligineedi@google.com>, "Stanislav Fomichev" <sdf@google.com> Subject: [RFC PATCH v3 03/12] net: netdev netlink api to bind dma-buf to a net device Date: Sun, 5 Nov 2023 18:44:02 -0800 [thread overview] Message-ID: <20231106024413.2801438-4-almasrymina@google.com> (raw) In-Reply-To: <20231106024413.2801438-1-almasrymina@google.com> API takes the dma-buf fd as input, and binds it to the netdevice. The user can specify the rx queues to bind the dma-buf to. Suggested-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Mina Almasry <almasrymina@google.com> --- Changes in v3: - Support binding multiple rx rx-queues --- Documentation/netlink/specs/netdev.yaml | 28 +++++++++++++++ include/uapi/linux/netdev.h | 10 ++++++ net/core/netdev-genl-gen.c | 14 ++++++++ net/core/netdev-genl-gen.h | 1 + net/core/netdev-genl.c | 6 ++++ tools/include/uapi/linux/netdev.h | 10 ++++++ tools/net/ynl/generated/netdev-user.c | 42 ++++++++++++++++++++++ tools/net/ynl/generated/netdev-user.h | 47 +++++++++++++++++++++++++ 8 files changed, 158 insertions(+) diff --git a/Documentation/netlink/specs/netdev.yaml b/Documentation/netlink/specs/netdev.yaml index 14511b13f305..2141c5f5c33e 100644 --- a/Documentation/netlink/specs/netdev.yaml +++ b/Documentation/netlink/specs/netdev.yaml @@ -86,6 +86,24 @@ attribute-sets: See Documentation/networking/xdp-rx-metadata.rst for more details. type: u64 enum: xdp-rx-metadata + - + name: bind-dmabuf + attributes: + - + name: ifindex + doc: netdev ifindex to bind the dma-buf to. + type: u32 + checks: + min: 1 + - + name: queues + doc: receive queues to bind the dma-buf to. + type: u32 + multi-attr: true + - + name: dmabuf-fd + doc: dmabuf file descriptor to bind. + type: u32 operations: list: @@ -120,6 +138,16 @@ operations: doc: Notification about device configuration being changed. notify: dev-get mcgrp: mgmt + - + name: bind-rx + doc: Bind dmabuf to netdev + attribute-set: bind-dmabuf + do: + request: + attributes: + - ifindex + - dmabuf-fd + - queues mcast-groups: list: diff --git a/include/uapi/linux/netdev.h b/include/uapi/linux/netdev.h index 2943a151d4f1..2cd367c498c7 100644 --- a/include/uapi/linux/netdev.h +++ b/include/uapi/linux/netdev.h @@ -64,11 +64,21 @@ enum { NETDEV_A_DEV_MAX = (__NETDEV_A_DEV_MAX - 1) }; +enum { + NETDEV_A_BIND_DMABUF_IFINDEX = 1, + NETDEV_A_BIND_DMABUF_QUEUES, + NETDEV_A_BIND_DMABUF_DMABUF_FD, + + __NETDEV_A_BIND_DMABUF_MAX, + NETDEV_A_BIND_DMABUF_MAX = (__NETDEV_A_BIND_DMABUF_MAX - 1) +}; + enum { NETDEV_CMD_DEV_GET = 1, NETDEV_CMD_DEV_ADD_NTF, NETDEV_CMD_DEV_DEL_NTF, NETDEV_CMD_DEV_CHANGE_NTF, + NETDEV_CMD_BIND_RX, __NETDEV_CMD_MAX, NETDEV_CMD_MAX = (__NETDEV_CMD_MAX - 1) diff --git a/net/core/netdev-genl-gen.c b/net/core/netdev-genl-gen.c index ea9231378aa6..58300efaf4e5 100644 --- a/net/core/netdev-genl-gen.c +++ b/net/core/netdev-genl-gen.c @@ -15,6 +15,13 @@ static const struct nla_policy netdev_dev_get_nl_policy[NETDEV_A_DEV_IFINDEX + 1 [NETDEV_A_DEV_IFINDEX] = NLA_POLICY_MIN(NLA_U32, 1), }; +/* NETDEV_CMD_BIND_RX - do */ +static const struct nla_policy netdev_bind_rx_nl_policy[NETDEV_A_BIND_DMABUF_DMABUF_FD + 1] = { + [NETDEV_A_BIND_DMABUF_IFINDEX] = NLA_POLICY_MIN(NLA_U32, 1), + [NETDEV_A_BIND_DMABUF_DMABUF_FD] = { .type = NLA_U32, }, + [NETDEV_A_BIND_DMABUF_QUEUES] = { .type = NLA_U32, }, +}; + /* Ops table for netdev */ static const struct genl_split_ops netdev_nl_ops[] = { { @@ -29,6 +36,13 @@ static const struct genl_split_ops netdev_nl_ops[] = { .dumpit = netdev_nl_dev_get_dumpit, .flags = GENL_CMD_CAP_DUMP, }, + { + .cmd = NETDEV_CMD_BIND_RX, + .doit = netdev_nl_bind_rx_doit, + .policy = netdev_bind_rx_nl_policy, + .maxattr = NETDEV_A_BIND_DMABUF_DMABUF_FD, + .flags = GENL_CMD_CAP_DO, + }, }; static const struct genl_multicast_group netdev_nl_mcgrps[] = { diff --git a/net/core/netdev-genl-gen.h b/net/core/netdev-genl-gen.h index 7b370c073e7d..5aaeb435ec08 100644 --- a/net/core/netdev-genl-gen.h +++ b/net/core/netdev-genl-gen.h @@ -13,6 +13,7 @@ int netdev_nl_dev_get_doit(struct sk_buff *skb, struct genl_info *info); int netdev_nl_dev_get_dumpit(struct sk_buff *skb, struct netlink_callback *cb); +int netdev_nl_bind_rx_doit(struct sk_buff *skb, struct genl_info *info); enum { NETDEV_NLGRP_MGMT, diff --git a/net/core/netdev-genl.c b/net/core/netdev-genl.c index fe61f85bcf33..59d3d512d9cc 100644 --- a/net/core/netdev-genl.c +++ b/net/core/netdev-genl.c @@ -129,6 +129,12 @@ int netdev_nl_dev_get_dumpit(struct sk_buff *skb, struct netlink_callback *cb) return skb->len; } +/* Stub */ +int netdev_nl_bind_rx_doit(struct sk_buff *skb, struct genl_info *info) +{ + return 0; +} + static int netdev_genl_netdevice_event(struct notifier_block *nb, unsigned long event, void *ptr) { diff --git a/tools/include/uapi/linux/netdev.h b/tools/include/uapi/linux/netdev.h index 2943a151d4f1..2cd367c498c7 100644 --- a/tools/include/uapi/linux/netdev.h +++ b/tools/include/uapi/linux/netdev.h @@ -64,11 +64,21 @@ enum { NETDEV_A_DEV_MAX = (__NETDEV_A_DEV_MAX - 1) }; +enum { + NETDEV_A_BIND_DMABUF_IFINDEX = 1, + NETDEV_A_BIND_DMABUF_QUEUES, + NETDEV_A_BIND_DMABUF_DMABUF_FD, + + __NETDEV_A_BIND_DMABUF_MAX, + NETDEV_A_BIND_DMABUF_MAX = (__NETDEV_A_BIND_DMABUF_MAX - 1) +}; + enum { NETDEV_CMD_DEV_GET = 1, NETDEV_CMD_DEV_ADD_NTF, NETDEV_CMD_DEV_DEL_NTF, NETDEV_CMD_DEV_CHANGE_NTF, + NETDEV_CMD_BIND_RX, __NETDEV_CMD_MAX, NETDEV_CMD_MAX = (__NETDEV_CMD_MAX - 1) diff --git a/tools/net/ynl/generated/netdev-user.c b/tools/net/ynl/generated/netdev-user.c index b5ffe8cd1144..d5f4c6d4c2b2 100644 --- a/tools/net/ynl/generated/netdev-user.c +++ b/tools/net/ynl/generated/netdev-user.c @@ -18,6 +18,7 @@ static const char * const netdev_op_strmap[] = { [NETDEV_CMD_DEV_ADD_NTF] = "dev-add-ntf", [NETDEV_CMD_DEV_DEL_NTF] = "dev-del-ntf", [NETDEV_CMD_DEV_CHANGE_NTF] = "dev-change-ntf", + [NETDEV_CMD_BIND_RX] = "bind-rx", }; const char *netdev_op_str(int op) @@ -72,6 +73,17 @@ struct ynl_policy_nest netdev_dev_nest = { .table = netdev_dev_policy, }; +struct ynl_policy_attr netdev_bind_dmabuf_policy[NETDEV_A_BIND_DMABUF_MAX + 1] = { + [NETDEV_A_BIND_DMABUF_IFINDEX] = { .name = "ifindex", .type = YNL_PT_U32, }, + [NETDEV_A_BIND_DMABUF_QUEUES] = { .name = "queues", .type = YNL_PT_U32, }, + [NETDEV_A_BIND_DMABUF_DMABUF_FD] = { .name = "dmabuf-fd", .type = YNL_PT_U32, }, +}; + +struct ynl_policy_nest netdev_bind_dmabuf_nest = { + .max_attr = NETDEV_A_BIND_DMABUF_MAX, + .table = netdev_bind_dmabuf_policy, +}; + /* Common nested types */ /* ============== NETDEV_CMD_DEV_GET ============== */ /* NETDEV_CMD_DEV_GET - do */ @@ -197,6 +209,36 @@ void netdev_dev_get_ntf_free(struct netdev_dev_get_ntf *rsp) free(rsp); } +/* ============== NETDEV_CMD_BIND_RX ============== */ +/* NETDEV_CMD_BIND_RX - do */ +void netdev_bind_rx_req_free(struct netdev_bind_rx_req *req) +{ + free(req->queues); + free(req); +} + +int netdev_bind_rx(struct ynl_sock *ys, struct netdev_bind_rx_req *req) +{ + struct nlmsghdr *nlh; + int err; + + nlh = ynl_gemsg_start_req(ys, ys->family_id, NETDEV_CMD_BIND_RX, 1); + ys->req_policy = &netdev_bind_dmabuf_nest; + + if (req->_present.ifindex) + mnl_attr_put_u32(nlh, NETDEV_A_BIND_DMABUF_IFINDEX, req->ifindex); + if (req->_present.dmabuf_fd) + mnl_attr_put_u32(nlh, NETDEV_A_BIND_DMABUF_DMABUF_FD, req->dmabuf_fd); + for (unsigned int i = 0; i < req->n_queues; i++) + mnl_attr_put_u32(nlh, NETDEV_A_BIND_DMABUF_QUEUES, req->queues[i]); + + err = ynl_exec(ys, nlh, NULL); + if (err < 0) + return -1; + + return 0; +} + static const struct ynl_ntf_info netdev_ntf_info[] = { [NETDEV_CMD_DEV_ADD_NTF] = { .alloc_sz = sizeof(struct netdev_dev_get_ntf), diff --git a/tools/net/ynl/generated/netdev-user.h b/tools/net/ynl/generated/netdev-user.h index 4fafac879df3..3cf9096d733a 100644 --- a/tools/net/ynl/generated/netdev-user.h +++ b/tools/net/ynl/generated/netdev-user.h @@ -87,4 +87,51 @@ struct netdev_dev_get_ntf { void netdev_dev_get_ntf_free(struct netdev_dev_get_ntf *rsp); +/* ============== NETDEV_CMD_BIND_RX ============== */ +/* NETDEV_CMD_BIND_RX - do */ +struct netdev_bind_rx_req { + struct { + __u32 ifindex:1; + __u32 dmabuf_fd:1; + } _present; + + __u32 ifindex; + __u32 dmabuf_fd; + unsigned int n_queues; + __u32 *queues; +}; + +static inline struct netdev_bind_rx_req *netdev_bind_rx_req_alloc(void) +{ + return calloc(1, sizeof(struct netdev_bind_rx_req)); +} +void netdev_bind_rx_req_free(struct netdev_bind_rx_req *req); + +static inline void +netdev_bind_rx_req_set_ifindex(struct netdev_bind_rx_req *req, __u32 ifindex) +{ + req->_present.ifindex = 1; + req->ifindex = ifindex; +} +static inline void +netdev_bind_rx_req_set_dmabuf_fd(struct netdev_bind_rx_req *req, + __u32 dmabuf_fd) +{ + req->_present.dmabuf_fd = 1; + req->dmabuf_fd = dmabuf_fd; +} +static inline void +__netdev_bind_rx_req_set_queues(struct netdev_bind_rx_req *req, __u32 *queues, + unsigned int n_queues) +{ + free(req->queues); + req->queues = queues; + req->n_queues = n_queues; +} + +/* + * Bind dmabuf to netdev + */ +int netdev_bind_rx(struct ynl_sock *ys, struct netdev_bind_rx_req *req); + #endif /* _LINUX_NETDEV_GEN_H */ -- 2.42.0.869.gea05f2083d-goog
WARNING: multiple messages have this Message-ID (diff)
From: Mina Almasry <almasrymina@google.com> To: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org Cc: "Mina Almasry" <almasrymina@google.com>, "Willem de Bruijn" <willemdebruijn.kernel@gmail.com>, "Jeroen de Borst" <jeroendb@google.com>, "Jesper Dangaard Brouer" <hawk@kernel.org>, "Arnd Bergmann" <arnd@arndb.de>, "Christian König" <christian.koenig@amd.com>, "David Ahern" <dsahern@kernel.org>, "Ilias Apalodimas" <ilias.apalodimas@linaro.org>, "Sumit Semwal" <sumit.semwal@linaro.org>, "Eric Dumazet" <edumazet@google.com>, "Shakeel Butt" <shakeelb@google.com>, "Stanislav Fomichev" <sdf@google.com>, "Praveen Kaligineedi" <pkaligineedi@google.com>, "Jakub Kicinski" <kuba@kernel.org>, "Paolo Abeni" <pabeni@redhat.com>, "Shuah Khan" <shuah@kernel.org>, "David S. Miller" <davem@davemloft.net> Subject: [RFC PATCH v3 03/12] net: netdev netlink api to bind dma-buf to a net device Date: Sun, 5 Nov 2023 18:44:02 -0800 [thread overview] Message-ID: <20231106024413.2801438-4-almasrymina@google.com> (raw) In-Reply-To: <20231106024413.2801438-1-almasrymina@google.com> API takes the dma-buf fd as input, and binds it to the netdevice. The user can specify the rx queues to bind the dma-buf to. Suggested-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Mina Almasry <almasrymina@google.com> --- Changes in v3: - Support binding multiple rx rx-queues --- Documentation/netlink/specs/netdev.yaml | 28 +++++++++++++++ include/uapi/linux/netdev.h | 10 ++++++ net/core/netdev-genl-gen.c | 14 ++++++++ net/core/netdev-genl-gen.h | 1 + net/core/netdev-genl.c | 6 ++++ tools/include/uapi/linux/netdev.h | 10 ++++++ tools/net/ynl/generated/netdev-user.c | 42 ++++++++++++++++++++++ tools/net/ynl/generated/netdev-user.h | 47 +++++++++++++++++++++++++ 8 files changed, 158 insertions(+) diff --git a/Documentation/netlink/specs/netdev.yaml b/Documentation/netlink/specs/netdev.yaml index 14511b13f305..2141c5f5c33e 100644 --- a/Documentation/netlink/specs/netdev.yaml +++ b/Documentation/netlink/specs/netdev.yaml @@ -86,6 +86,24 @@ attribute-sets: See Documentation/networking/xdp-rx-metadata.rst for more details. type: u64 enum: xdp-rx-metadata + - + name: bind-dmabuf + attributes: + - + name: ifindex + doc: netdev ifindex to bind the dma-buf to. + type: u32 + checks: + min: 1 + - + name: queues + doc: receive queues to bind the dma-buf to. + type: u32 + multi-attr: true + - + name: dmabuf-fd + doc: dmabuf file descriptor to bind. + type: u32 operations: list: @@ -120,6 +138,16 @@ operations: doc: Notification about device configuration being changed. notify: dev-get mcgrp: mgmt + - + name: bind-rx + doc: Bind dmabuf to netdev + attribute-set: bind-dmabuf + do: + request: + attributes: + - ifindex + - dmabuf-fd + - queues mcast-groups: list: diff --git a/include/uapi/linux/netdev.h b/include/uapi/linux/netdev.h index 2943a151d4f1..2cd367c498c7 100644 --- a/include/uapi/linux/netdev.h +++ b/include/uapi/linux/netdev.h @@ -64,11 +64,21 @@ enum { NETDEV_A_DEV_MAX = (__NETDEV_A_DEV_MAX - 1) }; +enum { + NETDEV_A_BIND_DMABUF_IFINDEX = 1, + NETDEV_A_BIND_DMABUF_QUEUES, + NETDEV_A_BIND_DMABUF_DMABUF_FD, + + __NETDEV_A_BIND_DMABUF_MAX, + NETDEV_A_BIND_DMABUF_MAX = (__NETDEV_A_BIND_DMABUF_MAX - 1) +}; + enum { NETDEV_CMD_DEV_GET = 1, NETDEV_CMD_DEV_ADD_NTF, NETDEV_CMD_DEV_DEL_NTF, NETDEV_CMD_DEV_CHANGE_NTF, + NETDEV_CMD_BIND_RX, __NETDEV_CMD_MAX, NETDEV_CMD_MAX = (__NETDEV_CMD_MAX - 1) diff --git a/net/core/netdev-genl-gen.c b/net/core/netdev-genl-gen.c index ea9231378aa6..58300efaf4e5 100644 --- a/net/core/netdev-genl-gen.c +++ b/net/core/netdev-genl-gen.c @@ -15,6 +15,13 @@ static const struct nla_policy netdev_dev_get_nl_policy[NETDEV_A_DEV_IFINDEX + 1 [NETDEV_A_DEV_IFINDEX] = NLA_POLICY_MIN(NLA_U32, 1), }; +/* NETDEV_CMD_BIND_RX - do */ +static const struct nla_policy netdev_bind_rx_nl_policy[NETDEV_A_BIND_DMABUF_DMABUF_FD + 1] = { + [NETDEV_A_BIND_DMABUF_IFINDEX] = NLA_POLICY_MIN(NLA_U32, 1), + [NETDEV_A_BIND_DMABUF_DMABUF_FD] = { .type = NLA_U32, }, + [NETDEV_A_BIND_DMABUF_QUEUES] = { .type = NLA_U32, }, +}; + /* Ops table for netdev */ static const struct genl_split_ops netdev_nl_ops[] = { { @@ -29,6 +36,13 @@ static const struct genl_split_ops netdev_nl_ops[] = { .dumpit = netdev_nl_dev_get_dumpit, .flags = GENL_CMD_CAP_DUMP, }, + { + .cmd = NETDEV_CMD_BIND_RX, + .doit = netdev_nl_bind_rx_doit, + .policy = netdev_bind_rx_nl_policy, + .maxattr = NETDEV_A_BIND_DMABUF_DMABUF_FD, + .flags = GENL_CMD_CAP_DO, + }, }; static const struct genl_multicast_group netdev_nl_mcgrps[] = { diff --git a/net/core/netdev-genl-gen.h b/net/core/netdev-genl-gen.h index 7b370c073e7d..5aaeb435ec08 100644 --- a/net/core/netdev-genl-gen.h +++ b/net/core/netdev-genl-gen.h @@ -13,6 +13,7 @@ int netdev_nl_dev_get_doit(struct sk_buff *skb, struct genl_info *info); int netdev_nl_dev_get_dumpit(struct sk_buff *skb, struct netlink_callback *cb); +int netdev_nl_bind_rx_doit(struct sk_buff *skb, struct genl_info *info); enum { NETDEV_NLGRP_MGMT, diff --git a/net/core/netdev-genl.c b/net/core/netdev-genl.c index fe61f85bcf33..59d3d512d9cc 100644 --- a/net/core/netdev-genl.c +++ b/net/core/netdev-genl.c @@ -129,6 +129,12 @@ int netdev_nl_dev_get_dumpit(struct sk_buff *skb, struct netlink_callback *cb) return skb->len; } +/* Stub */ +int netdev_nl_bind_rx_doit(struct sk_buff *skb, struct genl_info *info) +{ + return 0; +} + static int netdev_genl_netdevice_event(struct notifier_block *nb, unsigned long event, void *ptr) { diff --git a/tools/include/uapi/linux/netdev.h b/tools/include/uapi/linux/netdev.h index 2943a151d4f1..2cd367c498c7 100644 --- a/tools/include/uapi/linux/netdev.h +++ b/tools/include/uapi/linux/netdev.h @@ -64,11 +64,21 @@ enum { NETDEV_A_DEV_MAX = (__NETDEV_A_DEV_MAX - 1) }; +enum { + NETDEV_A_BIND_DMABUF_IFINDEX = 1, + NETDEV_A_BIND_DMABUF_QUEUES, + NETDEV_A_BIND_DMABUF_DMABUF_FD, + + __NETDEV_A_BIND_DMABUF_MAX, + NETDEV_A_BIND_DMABUF_MAX = (__NETDEV_A_BIND_DMABUF_MAX - 1) +}; + enum { NETDEV_CMD_DEV_GET = 1, NETDEV_CMD_DEV_ADD_NTF, NETDEV_CMD_DEV_DEL_NTF, NETDEV_CMD_DEV_CHANGE_NTF, + NETDEV_CMD_BIND_RX, __NETDEV_CMD_MAX, NETDEV_CMD_MAX = (__NETDEV_CMD_MAX - 1) diff --git a/tools/net/ynl/generated/netdev-user.c b/tools/net/ynl/generated/netdev-user.c index b5ffe8cd1144..d5f4c6d4c2b2 100644 --- a/tools/net/ynl/generated/netdev-user.c +++ b/tools/net/ynl/generated/netdev-user.c @@ -18,6 +18,7 @@ static const char * const netdev_op_strmap[] = { [NETDEV_CMD_DEV_ADD_NTF] = "dev-add-ntf", [NETDEV_CMD_DEV_DEL_NTF] = "dev-del-ntf", [NETDEV_CMD_DEV_CHANGE_NTF] = "dev-change-ntf", + [NETDEV_CMD_BIND_RX] = "bind-rx", }; const char *netdev_op_str(int op) @@ -72,6 +73,17 @@ struct ynl_policy_nest netdev_dev_nest = { .table = netdev_dev_policy, }; +struct ynl_policy_attr netdev_bind_dmabuf_policy[NETDEV_A_BIND_DMABUF_MAX + 1] = { + [NETDEV_A_BIND_DMABUF_IFINDEX] = { .name = "ifindex", .type = YNL_PT_U32, }, + [NETDEV_A_BIND_DMABUF_QUEUES] = { .name = "queues", .type = YNL_PT_U32, }, + [NETDEV_A_BIND_DMABUF_DMABUF_FD] = { .name = "dmabuf-fd", .type = YNL_PT_U32, }, +}; + +struct ynl_policy_nest netdev_bind_dmabuf_nest = { + .max_attr = NETDEV_A_BIND_DMABUF_MAX, + .table = netdev_bind_dmabuf_policy, +}; + /* Common nested types */ /* ============== NETDEV_CMD_DEV_GET ============== */ /* NETDEV_CMD_DEV_GET - do */ @@ -197,6 +209,36 @@ void netdev_dev_get_ntf_free(struct netdev_dev_get_ntf *rsp) free(rsp); } +/* ============== NETDEV_CMD_BIND_RX ============== */ +/* NETDEV_CMD_BIND_RX - do */ +void netdev_bind_rx_req_free(struct netdev_bind_rx_req *req) +{ + free(req->queues); + free(req); +} + +int netdev_bind_rx(struct ynl_sock *ys, struct netdev_bind_rx_req *req) +{ + struct nlmsghdr *nlh; + int err; + + nlh = ynl_gemsg_start_req(ys, ys->family_id, NETDEV_CMD_BIND_RX, 1); + ys->req_policy = &netdev_bind_dmabuf_nest; + + if (req->_present.ifindex) + mnl_attr_put_u32(nlh, NETDEV_A_BIND_DMABUF_IFINDEX, req->ifindex); + if (req->_present.dmabuf_fd) + mnl_attr_put_u32(nlh, NETDEV_A_BIND_DMABUF_DMABUF_FD, req->dmabuf_fd); + for (unsigned int i = 0; i < req->n_queues; i++) + mnl_attr_put_u32(nlh, NETDEV_A_BIND_DMABUF_QUEUES, req->queues[i]); + + err = ynl_exec(ys, nlh, NULL); + if (err < 0) + return -1; + + return 0; +} + static const struct ynl_ntf_info netdev_ntf_info[] = { [NETDEV_CMD_DEV_ADD_NTF] = { .alloc_sz = sizeof(struct netdev_dev_get_ntf), diff --git a/tools/net/ynl/generated/netdev-user.h b/tools/net/ynl/generated/netdev-user.h index 4fafac879df3..3cf9096d733a 100644 --- a/tools/net/ynl/generated/netdev-user.h +++ b/tools/net/ynl/generated/netdev-user.h @@ -87,4 +87,51 @@ struct netdev_dev_get_ntf { void netdev_dev_get_ntf_free(struct netdev_dev_get_ntf *rsp); +/* ============== NETDEV_CMD_BIND_RX ============== */ +/* NETDEV_CMD_BIND_RX - do */ +struct netdev_bind_rx_req { + struct { + __u32 ifindex:1; + __u32 dmabuf_fd:1; + } _present; + + __u32 ifindex; + __u32 dmabuf_fd; + unsigned int n_queues; + __u32 *queues; +}; + +static inline struct netdev_bind_rx_req *netdev_bind_rx_req_alloc(void) +{ + return calloc(1, sizeof(struct netdev_bind_rx_req)); +} +void netdev_bind_rx_req_free(struct netdev_bind_rx_req *req); + +static inline void +netdev_bind_rx_req_set_ifindex(struct netdev_bind_rx_req *req, __u32 ifindex) +{ + req->_present.ifindex = 1; + req->ifindex = ifindex; +} +static inline void +netdev_bind_rx_req_set_dmabuf_fd(struct netdev_bind_rx_req *req, + __u32 dmabuf_fd) +{ + req->_present.dmabuf_fd = 1; + req->dmabuf_fd = dmabuf_fd; +} +static inline void +__netdev_bind_rx_req_set_queues(struct netdev_bind_rx_req *req, __u32 *queues, + unsigned int n_queues) +{ + free(req->queues); + req->queues = queues; + req->n_queues = n_queues; +} + +/* + * Bind dmabuf to netdev + */ +int netdev_bind_rx(struct ynl_sock *ys, struct netdev_bind_rx_req *req); + #endif /* _LINUX_NETDEV_GEN_H */ -- 2.42.0.869.gea05f2083d-goog
next prev parent reply other threads:[~2023-11-06 2:44 UTC|newest] Thread overview: 254+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-11-06 2:43 [RFC PATCH v3 00/12] Device Memory TCP Mina Almasry 2023-11-06 2:43 ` Mina Almasry 2023-11-06 2:44 ` [RFC PATCH v3 01/12] net: page_pool: factor out releasing DMA from releasing the page Mina Almasry 2023-11-06 2:44 ` Mina Almasry 2023-11-06 2:44 ` [RFC PATCH v3 02/12] net: page_pool: create hooks for custom page providers Mina Almasry 2023-11-06 2:44 ` Mina Almasry 2023-11-07 7:44 ` Yunsheng Lin 2023-11-07 7:44 ` Yunsheng Lin 2023-11-09 11:09 ` Paolo Abeni 2023-11-09 11:09 ` Paolo Abeni 2023-11-10 23:19 ` Jakub Kicinski 2023-11-10 23:19 ` Jakub Kicinski 2023-11-13 3:28 ` Mina Almasry 2023-11-13 3:28 ` Mina Almasry 2023-11-13 22:10 ` Jakub Kicinski 2023-11-13 22:10 ` Jakub Kicinski 2023-11-06 2:44 ` Mina Almasry [this message] 2023-11-06 2:44 ` [RFC PATCH v3 03/12] net: netdev netlink api to bind dma-buf to a net device Mina Almasry 2023-11-10 23:16 ` Jakub Kicinski 2023-11-10 23:16 ` Jakub Kicinski 2023-11-06 2:44 ` [RFC PATCH v3 04/12] netdev: support binding dma-buf to netdevice Mina Almasry 2023-11-06 2:44 ` Mina Almasry 2023-11-07 7:46 ` Yunsheng Lin 2023-11-07 7:46 ` Yunsheng Lin 2023-11-07 21:59 ` Mina Almasry 2023-11-07 21:59 ` Mina Almasry 2023-11-08 3:40 ` Yunsheng Lin 2023-11-08 3:40 ` Yunsheng Lin 2023-11-09 2:22 ` Mina Almasry 2023-11-09 2:22 ` Mina Almasry 2023-11-09 9:29 ` Yunsheng Lin 2023-11-09 9:29 ` Yunsheng Lin 2023-11-08 23:47 ` David Wei 2023-11-08 23:47 ` David Wei 2023-11-09 2:25 ` Mina Almasry 2023-11-09 2:25 ` Mina Almasry 2023-11-09 8:29 ` Paolo Abeni 2023-11-09 8:29 ` Paolo Abeni 2023-11-10 2:59 ` Mina Almasry 2023-11-10 2:59 ` Mina Almasry 2023-11-10 7:38 ` Yunsheng Lin 2023-11-10 7:38 ` Yunsheng Lin 2023-11-10 9:45 ` Mina Almasry 2023-11-10 9:45 ` Mina Almasry 2023-11-10 23:19 ` Jakub Kicinski 2023-11-10 23:19 ` Jakub Kicinski 2023-11-11 2:19 ` Mina Almasry 2023-11-11 2:19 ` Mina Almasry 2023-11-06 2:44 ` [RFC PATCH v3 05/12] netdev: netdevice devmem allocator Mina Almasry 2023-11-06 2:44 ` Mina Almasry 2023-11-06 23:44 ` David Ahern 2023-11-06 23:44 ` David Ahern 2023-11-07 22:10 ` Mina Almasry 2023-11-07 22:10 ` Mina Almasry 2023-11-07 22:55 ` David Ahern 2023-11-07 22:55 ` David Ahern 2023-11-07 23:03 ` Mina Almasry 2023-11-07 23:03 ` Mina Almasry 2023-11-09 1:15 ` David Wei 2023-11-09 1:15 ` David Wei 2023-11-10 14:26 ` Pavel Begunkov 2023-11-10 14:26 ` Pavel Begunkov 2023-11-11 17:19 ` David Ahern 2023-11-11 17:19 ` David Ahern 2023-11-14 16:09 ` Pavel Begunkov 2023-11-14 16:09 ` Pavel Begunkov 2023-11-09 1:00 ` David Wei 2023-11-09 1:00 ` David Wei 2023-11-08 3:48 ` Yunsheng Lin 2023-11-08 3:48 ` Yunsheng Lin 2023-11-09 1:41 ` Mina Almasry 2023-11-09 1:41 ` Mina Almasry 2023-11-07 7:45 ` Yunsheng Lin 2023-11-07 7:45 ` Yunsheng Lin 2023-11-09 8:44 ` Paolo Abeni 2023-11-09 8:44 ` Paolo Abeni 2023-11-06 2:44 ` [RFC PATCH v3 06/12] memory-provider: dmabuf devmem memory provider Mina Almasry 2023-11-06 2:44 ` Mina Almasry 2023-11-06 21:02 ` Stanislav Fomichev 2023-11-06 21:02 ` Stanislav Fomichev 2023-11-06 23:49 ` David Ahern 2023-11-06 23:49 ` David Ahern 2023-11-08 0:02 ` Mina Almasry 2023-11-08 0:02 ` Mina Almasry 2023-11-08 0:10 ` David Ahern 2023-11-08 0:10 ` David Ahern 2023-11-10 23:16 ` Jakub Kicinski 2023-11-10 23:16 ` Jakub Kicinski 2023-11-13 4:54 ` Mina Almasry 2023-11-13 4:54 ` Mina Almasry 2023-11-06 2:44 ` [RFC PATCH v3 07/12] page-pool: device memory support Mina Almasry 2023-11-06 2:44 ` Mina Almasry 2023-11-07 8:00 ` Yunsheng Lin 2023-11-07 8:00 ` Yunsheng Lin 2023-11-07 21:56 ` Mina Almasry 2023-11-07 21:56 ` Mina Almasry 2023-11-08 10:56 ` Yunsheng Lin 2023-11-08 10:56 ` Yunsheng Lin 2023-11-09 3:20 ` Mina Almasry 2023-11-09 3:20 ` Mina Almasry 2023-11-09 9:30 ` Yunsheng Lin 2023-11-09 9:30 ` Yunsheng Lin 2023-11-09 12:20 ` Mina Almasry 2023-11-09 12:20 ` Mina Almasry 2023-11-09 13:23 ` Yunsheng Lin 2023-11-09 13:23 ` Yunsheng Lin 2023-11-09 14:23 ` Christian König 2023-11-09 9:01 ` Paolo Abeni 2023-11-09 9:01 ` Paolo Abeni 2023-11-06 2:44 ` [RFC PATCH v3 08/12] net: support non paged skb frags Mina Almasry 2023-11-06 2:44 ` Mina Almasry 2023-11-07 9:00 ` Yunsheng Lin 2023-11-07 9:00 ` Yunsheng Lin 2023-11-07 21:19 ` Mina Almasry 2023-11-07 21:19 ` Mina Almasry 2023-11-08 11:25 ` Yunsheng Lin 2023-11-08 11:25 ` Yunsheng Lin 2023-11-09 9:14 ` Paolo Abeni 2023-11-09 9:14 ` Paolo Abeni 2023-11-10 4:06 ` Mina Almasry 2023-11-10 4:06 ` Mina Almasry 2023-11-10 23:19 ` Jakub Kicinski 2023-11-10 23:19 ` Jakub Kicinski 2023-11-13 6:05 ` Mina Almasry 2023-11-13 6:05 ` Mina Almasry 2023-11-13 22:17 ` Jakub Kicinski 2023-11-13 22:17 ` Jakub Kicinski 2023-11-06 2:44 ` [RFC PATCH v3 09/12] net: add support for skbs with unreadable frags Mina Almasry 2023-11-06 2:44 ` Mina Almasry 2023-11-06 18:47 ` Stanislav Fomichev 2023-11-06 18:47 ` Stanislav Fomichev 2023-11-06 19:34 ` David Ahern 2023-11-06 19:34 ` David Ahern 2023-11-06 20:31 ` Mina Almasry 2023-11-06 20:31 ` Mina Almasry 2023-11-06 21:59 ` Stanislav Fomichev 2023-11-06 21:59 ` Stanislav Fomichev 2023-11-06 22:18 ` Mina Almasry 2023-11-06 22:18 ` Mina Almasry 2023-11-06 22:59 ` Stanislav Fomichev 2023-11-06 22:59 ` Stanislav Fomichev 2023-11-06 23:14 ` Kaiyuan Zhang 2023-11-06 23:27 ` Mina Almasry 2023-11-06 23:27 ` Mina Almasry 2023-11-06 23:55 ` Stanislav Fomichev 2023-11-06 23:55 ` Stanislav Fomichev 2023-11-07 0:07 ` Willem de Bruijn 2023-11-07 0:07 ` Willem de Bruijn 2023-11-07 0:14 ` Stanislav Fomichev 2023-11-07 0:14 ` Stanislav Fomichev 2023-11-07 0:59 ` Stanislav Fomichev 2023-11-07 0:59 ` Stanislav Fomichev 2023-11-07 2:23 ` Willem de Bruijn 2023-11-07 2:23 ` Willem de Bruijn 2023-11-07 17:44 ` Stanislav Fomichev 2023-11-07 17:44 ` Stanislav Fomichev 2023-11-07 17:57 ` Willem de Bruijn 2023-11-07 17:57 ` Willem de Bruijn 2023-11-07 18:14 ` Stanislav Fomichev 2023-11-07 18:14 ` Stanislav Fomichev 2023-11-07 0:20 ` Mina Almasry 2023-11-07 0:20 ` Mina Almasry 2023-11-07 1:06 ` Stanislav Fomichev 2023-11-07 1:06 ` Stanislav Fomichev 2023-11-07 19:53 ` Mina Almasry 2023-11-07 19:53 ` Mina Almasry 2023-11-07 21:05 ` Stanislav Fomichev 2023-11-07 21:05 ` Stanislav Fomichev 2023-11-07 21:17 ` Eric Dumazet 2023-11-07 21:17 ` Eric Dumazet 2023-11-07 22:23 ` Stanislav Fomichev 2023-11-07 22:23 ` Stanislav Fomichev 2023-11-10 23:17 ` Jakub Kicinski 2023-11-10 23:17 ` Jakub Kicinski 2023-11-10 23:19 ` Jakub Kicinski 2023-11-10 23:19 ` Jakub Kicinski 2023-11-07 1:09 ` David Ahern 2023-11-07 1:09 ` David Ahern 2023-11-06 23:37 ` David Ahern 2023-11-06 23:37 ` David Ahern 2023-11-07 0:03 ` Mina Almasry 2023-11-07 0:03 ` Mina Almasry 2023-11-06 20:56 ` Stanislav Fomichev 2023-11-06 20:56 ` Stanislav Fomichev 2023-11-07 0:16 ` David Ahern 2023-11-07 0:16 ` David Ahern 2023-11-07 0:23 ` Mina Almasry 2023-11-07 0:23 ` Mina Almasry 2023-11-08 14:43 ` David Laight 2023-11-08 14:43 ` David Laight 2023-11-06 2:44 ` [RFC PATCH v3 10/12] tcp: RX path for devmem TCP Mina Almasry 2023-11-06 2:44 ` Mina Almasry 2023-11-06 18:44 ` Stanislav Fomichev 2023-11-06 18:44 ` Stanislav Fomichev 2023-11-06 19:29 ` Mina Almasry 2023-11-06 19:29 ` Mina Almasry 2023-11-06 21:14 ` Willem de Bruijn 2023-11-06 21:14 ` Willem de Bruijn 2023-11-06 22:34 ` Stanislav Fomichev 2023-11-06 22:34 ` Stanislav Fomichev 2023-11-06 22:55 ` Willem de Bruijn 2023-11-06 22:55 ` Willem de Bruijn 2023-11-06 23:32 ` Stanislav Fomichev 2023-11-06 23:32 ` Stanislav Fomichev 2023-11-06 23:55 ` David Ahern 2023-11-06 23:55 ` David Ahern 2023-11-07 0:02 ` Willem de Bruijn 2023-11-07 0:02 ` Willem de Bruijn 2023-11-07 23:55 ` Mina Almasry 2023-11-07 23:55 ` Mina Almasry 2023-11-08 0:01 ` David Ahern 2023-11-08 0:01 ` David Ahern 2023-11-09 2:39 ` Mina Almasry 2023-11-09 2:39 ` Mina Almasry 2023-11-09 16:07 ` Edward Cree 2023-11-09 16:07 ` Edward Cree 2023-12-08 20:12 ` Pavel Begunkov 2023-12-08 20:12 ` Pavel Begunkov 2023-11-09 11:05 ` Paolo Abeni 2023-11-09 11:05 ` Paolo Abeni 2023-11-10 23:16 ` Jakub Kicinski 2023-11-10 23:16 ` Jakub Kicinski 2023-12-08 20:28 ` Pavel Begunkov 2023-12-08 20:28 ` Pavel Begunkov 2023-12-08 20:09 ` Pavel Begunkov 2023-12-08 20:09 ` Pavel Begunkov 2023-11-06 21:17 ` Stanislav Fomichev 2023-11-06 21:17 ` Stanislav Fomichev 2023-11-08 15:36 ` Edward Cree 2023-11-08 15:36 ` Edward Cree 2023-11-09 10:52 ` Paolo Abeni 2023-11-09 10:52 ` Paolo Abeni 2023-11-10 23:19 ` Jakub Kicinski 2023-11-10 23:19 ` Jakub Kicinski 2023-11-06 2:44 ` [RFC PATCH v3 11/12] net: add SO_DEVMEM_DONTNEED setsockopt to release RX pages Mina Almasry 2023-11-06 2:44 ` Mina Almasry 2023-11-06 2:44 ` [RFC PATCH v3 12/12] selftests: add ncdevmem, netcat for devmem TCP Mina Almasry 2023-11-06 2:44 ` Mina Almasry 2023-11-09 11:03 ` Paolo Abeni 2023-11-09 11:03 ` Paolo Abeni 2023-11-10 23:13 ` Jakub Kicinski 2023-11-10 23:13 ` Jakub Kicinski 2023-11-11 2:27 ` Mina Almasry 2023-11-11 2:27 ` Mina Almasry 2023-11-11 2:35 ` Jakub Kicinski 2023-11-11 2:35 ` Jakub Kicinski 2023-11-13 4:08 ` Mina Almasry 2023-11-13 4:08 ` Mina Almasry 2023-11-13 22:20 ` Jakub Kicinski 2023-11-13 22:20 ` Jakub Kicinski 2023-11-10 23:17 ` Jakub Kicinski 2023-11-10 23:17 ` Jakub Kicinski 2023-11-07 15:18 ` [RFC PATCH v3 00/12] Device Memory TCP David Ahern 2023-11-07 15:18 ` David Ahern
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