From f88482743872230f5899b8344a057d6e2fd011e2 Mon Sep 17 00:00:00 2001 From: Matan Barak Date: Wed, 6 Nov 2013 23:21:44 +0100 Subject: IB/core: clarify overflow/underflow checks on ib_create/destroy_flow This patch fixes the following issues: 1. Unneeded checks were removed 2. Removed the fixed size out of flow_attr.size, thus simplifying the checks. 3. Remove a 32bit hole on 64bit systems with strict alignment in struct ib_kern_flow_att by adding a reserved field. Signed-off-by: Matan Barak Signed-off-by: Roland Dreier --- include/uapi/rdma/ib_user_verbs.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/uapi') diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h index e3ddd86c90a6..99a58bdc1c64 100644 --- a/include/uapi/rdma/ib_user_verbs.h +++ b/include/uapi/rdma/ib_user_verbs.h @@ -771,6 +771,7 @@ struct ib_kern_flow_attr { struct ib_uverbs_create_flow { __u32 comp_mask; + __u32 reserved; __u64 response; __u32 qp_handle; struct ib_kern_flow_attr flow_attr; -- cgit v1.2.3 From d82693dad09b49232cd727ee9e15bd027710edac Mon Sep 17 00:00:00 2001 From: Yann Droneaud Date: Wed, 6 Nov 2013 23:21:45 +0100 Subject: IB/core: Rename 'flow' structs to match other uverbs structs Commit 436f2ad05a0b ("IB/core: Export ib_create/destroy_flow through uverbs") added public data structures to support receive flow steering. The new structs are not following the 'uverbs' pattern: they're lacking the common prefix 'ib_uverbs'. This patch replaces ib_kern prefix by ib_uverbs. Signed-off-by: Yann Droneaud Link: http://marc.info/?i=cover.1383773832.git.ydroneaud@opteya.com Signed-off-by: Roland Dreier --- drivers/infiniband/core/uverbs_cmd.c | 14 +++++++------- include/uapi/rdma/ib_user_verbs.h | 36 ++++++++++++++++++------------------ 2 files changed, 25 insertions(+), 25 deletions(-) (limited to 'include/uapi') diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index 26ee2d2a8c52..f83c1dc08481 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -2602,7 +2602,7 @@ out_put: } #ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING -static int kern_spec_to_ib_spec(struct ib_kern_spec *kern_spec, +static int kern_spec_to_ib_spec(struct ib_uverbs_spec *kern_spec, union ib_flow_spec *ib_spec) { ib_spec->type = kern_spec->type; @@ -2650,7 +2650,7 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file, struct ib_uverbs_create_flow_resp resp; struct ib_uobject *uobj; struct ib_flow *flow_id; - struct ib_kern_flow_attr *kern_flow_attr; + struct ib_uverbs_flow_attr *kern_flow_attr; struct ib_flow_attr *flow_attr; struct ib_qp *qp; int err = 0; @@ -2676,7 +2676,7 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file, if (cmd.flow_attr.size > (in_len - sizeof(cmd)) || cmd.flow_attr.size > - (cmd.flow_attr.num_of_specs * sizeof(struct ib_kern_spec))) + (cmd.flow_attr.num_of_specs * sizeof(struct ib_uverbs_spec))) return -EINVAL; if (cmd.flow_attr.num_of_specs) { @@ -2725,16 +2725,16 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file, kern_spec = kern_flow_attr + 1; ib_spec = flow_attr + 1; for (i = 0; i < flow_attr->num_of_specs && - cmd.flow_attr.size > offsetof(struct ib_kern_spec, reserved) && + cmd.flow_attr.size > offsetof(struct ib_uverbs_spec, reserved) && cmd.flow_attr.size >= - ((struct ib_kern_spec *)kern_spec)->size; i++) { + ((struct ib_uverbs_spec *)kern_spec)->size; i++) { err = kern_spec_to_ib_spec(kern_spec, ib_spec); if (err) goto err_free; flow_attr->size += ((union ib_flow_spec *) ib_spec)->size; - cmd.flow_attr.size -= ((struct ib_kern_spec *)kern_spec)->size; - kern_spec += ((struct ib_kern_spec *) kern_spec)->size; + cmd.flow_attr.size -= ((struct ib_uverbs_spec *)kern_spec)->size; + kern_spec += ((struct ib_uverbs_spec *) kern_spec)->size; ib_spec += ((union ib_flow_spec *) ib_spec)->size; } if (cmd.flow_attr.size || (i != flow_attr->num_of_specs)) { diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h index 99a58bdc1c64..96a660533236 100644 --- a/include/uapi/rdma/ib_user_verbs.h +++ b/include/uapi/rdma/ib_user_verbs.h @@ -701,61 +701,61 @@ struct ib_uverbs_detach_mcast { }; #ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING -struct ib_kern_eth_filter { +struct ib_uverbs_eth_filter { __u8 dst_mac[6]; __u8 src_mac[6]; __be16 ether_type; __be16 vlan_tag; }; -struct ib_kern_spec_eth { +struct ib_uverbs_spec_eth { __u32 type; __u16 size; __u16 reserved; - struct ib_kern_eth_filter val; - struct ib_kern_eth_filter mask; + struct ib_uverbs_eth_filter val; + struct ib_uverbs_eth_filter mask; }; -struct ib_kern_ipv4_filter { +struct ib_uverbs_ipv4_filter { __be32 src_ip; __be32 dst_ip; }; -struct ib_kern_spec_ipv4 { +struct ib_uverbs_spec_ipv4 { __u32 type; __u16 size; __u16 reserved; - struct ib_kern_ipv4_filter val; - struct ib_kern_ipv4_filter mask; + struct ib_uverbs_ipv4_filter val; + struct ib_uverbs_ipv4_filter mask; }; -struct ib_kern_tcp_udp_filter { +struct ib_uverbs_tcp_udp_filter { __be16 dst_port; __be16 src_port; }; -struct ib_kern_spec_tcp_udp { +struct ib_uverbs_spec_tcp_udp { __u32 type; __u16 size; __u16 reserved; - struct ib_kern_tcp_udp_filter val; - struct ib_kern_tcp_udp_filter mask; + struct ib_uverbs_tcp_udp_filter val; + struct ib_uverbs_tcp_udp_filter mask; }; -struct ib_kern_spec { +struct ib_uverbs_spec { union { struct { __u32 type; __u16 size; __u16 reserved; }; - struct ib_kern_spec_eth eth; - struct ib_kern_spec_ipv4 ipv4; - struct ib_kern_spec_tcp_udp tcp_udp; + struct ib_uverbs_spec_eth eth; + struct ib_uverbs_spec_ipv4 ipv4; + struct ib_uverbs_spec_tcp_udp tcp_udp; }; }; -struct ib_kern_flow_attr { +struct ib_uverbs_flow_attr { __u32 type; __u16 size; __u16 priority; @@ -774,7 +774,7 @@ struct ib_uverbs_create_flow { __u32 reserved; __u64 response; __u32 qp_handle; - struct ib_kern_flow_attr flow_attr; + struct ib_uverbs_flow_attr flow_attr; }; struct ib_uverbs_create_flow_resp { -- cgit v1.2.3 From b68c956021386eead6b8b28e445f33c8c985d7d2 Mon Sep 17 00:00:00 2001 From: Yann Droneaud Date: Wed, 6 Nov 2013 23:21:46 +0100 Subject: IB/core: Make uverbs flow structure use names like verbs ones This patch adds "flow" prefix to most of data structure added as part of commit 436f2ad05a0b ("IB/core: Export ib_create/destroy_flow through uverbs") to keep those names in sync with the data structures added in commit 319a441d1361 ("IB/core: Add receive flow steering support"). It's just a matter of translating 'ib_flow' to 'ib_uverbs_flow'. Signed-off-by: Yann Droneaud Link: http://marc.info/?i=cover.1383773832.git.ydroneaud@opteya.com Signed-off-by: Roland Dreier --- drivers/infiniband/core/uverbs_cmd.c | 12 ++++++------ include/uapi/rdma/ib_user_verbs.h | 32 ++++++++++++++++---------------- 2 files changed, 22 insertions(+), 22 deletions(-) (limited to 'include/uapi') diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index f83c1dc08481..19f14d82c988 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -2602,7 +2602,7 @@ out_put: } #ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING -static int kern_spec_to_ib_spec(struct ib_uverbs_spec *kern_spec, +static int kern_spec_to_ib_spec(struct ib_uverbs_flow_spec *kern_spec, union ib_flow_spec *ib_spec) { ib_spec->type = kern_spec->type; @@ -2676,7 +2676,7 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file, if (cmd.flow_attr.size > (in_len - sizeof(cmd)) || cmd.flow_attr.size > - (cmd.flow_attr.num_of_specs * sizeof(struct ib_uverbs_spec))) + (cmd.flow_attr.num_of_specs * sizeof(struct ib_uverbs_flow_spec))) return -EINVAL; if (cmd.flow_attr.num_of_specs) { @@ -2725,16 +2725,16 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file, kern_spec = kern_flow_attr + 1; ib_spec = flow_attr + 1; for (i = 0; i < flow_attr->num_of_specs && - cmd.flow_attr.size > offsetof(struct ib_uverbs_spec, reserved) && + cmd.flow_attr.size > offsetof(struct ib_uverbs_flow_spec, reserved) && cmd.flow_attr.size >= - ((struct ib_uverbs_spec *)kern_spec)->size; i++) { + ((struct ib_uverbs_flow_spec *)kern_spec)->size; i++) { err = kern_spec_to_ib_spec(kern_spec, ib_spec); if (err) goto err_free; flow_attr->size += ((union ib_flow_spec *) ib_spec)->size; - cmd.flow_attr.size -= ((struct ib_uverbs_spec *)kern_spec)->size; - kern_spec += ((struct ib_uverbs_spec *) kern_spec)->size; + cmd.flow_attr.size -= ((struct ib_uverbs_flow_spec *)kern_spec)->size; + kern_spec += ((struct ib_uverbs_flow_spec *) kern_spec)->size; ib_spec += ((union ib_flow_spec *) ib_spec)->size; } if (cmd.flow_attr.size || (i != flow_attr->num_of_specs)) { diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h index 96a660533236..ef2be64bf4c3 100644 --- a/include/uapi/rdma/ib_user_verbs.h +++ b/include/uapi/rdma/ib_user_verbs.h @@ -701,57 +701,57 @@ struct ib_uverbs_detach_mcast { }; #ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING -struct ib_uverbs_eth_filter { +struct ib_uverbs_flow_eth_filter { __u8 dst_mac[6]; __u8 src_mac[6]; __be16 ether_type; __be16 vlan_tag; }; -struct ib_uverbs_spec_eth { +struct ib_uverbs_flow_spec_eth { __u32 type; __u16 size; __u16 reserved; - struct ib_uverbs_eth_filter val; - struct ib_uverbs_eth_filter mask; + struct ib_uverbs_flow_eth_filter val; + struct ib_uverbs_flow_eth_filter mask; }; -struct ib_uverbs_ipv4_filter { +struct ib_uverbs_flow_ipv4_filter { __be32 src_ip; __be32 dst_ip; }; -struct ib_uverbs_spec_ipv4 { +struct ib_uverbs_flow_spec_ipv4 { __u32 type; __u16 size; __u16 reserved; - struct ib_uverbs_ipv4_filter val; - struct ib_uverbs_ipv4_filter mask; + struct ib_uverbs_flow_ipv4_filter val; + struct ib_uverbs_flow_ipv4_filter mask; }; -struct ib_uverbs_tcp_udp_filter { +struct ib_uverbs_flow_tcp_udp_filter { __be16 dst_port; __be16 src_port; }; -struct ib_uverbs_spec_tcp_udp { +struct ib_uverbs_flow_spec_tcp_udp { __u32 type; __u16 size; __u16 reserved; - struct ib_uverbs_tcp_udp_filter val; - struct ib_uverbs_tcp_udp_filter mask; + struct ib_uverbs_flow_tcp_udp_filter val; + struct ib_uverbs_flow_tcp_udp_filter mask; }; -struct ib_uverbs_spec { +struct ib_uverbs_flow_spec { union { struct { __u32 type; __u16 size; __u16 reserved; }; - struct ib_uverbs_spec_eth eth; - struct ib_uverbs_spec_ipv4 ipv4; - struct ib_uverbs_spec_tcp_udp tcp_udp; + struct ib_uverbs_flow_spec_eth eth; + struct ib_uverbs_flow_spec_ipv4 ipv4; + struct ib_uverbs_flow_spec_tcp_udp tcp_udp; }; }; -- cgit v1.2.3 From 58913efba9c3aa7992f2a4d630135ded833d988e Mon Sep 17 00:00:00 2001 From: Yann Droneaud Date: Wed, 6 Nov 2013 23:21:47 +0100 Subject: IB/core: Use a common header for uverbs flow_specs A common header will allows better checking of flow specs size, while ensuring strict alignment to 64 bits. Signed-off-by: Yann Droneaud Link: http://marc.info/?i=cover.1383773832.git.ydroneaud@opteya.com Signed-off-by: Roland Dreier --- include/uapi/rdma/ib_user_verbs.h | 53 +++++++++++++++++++++++++++++---------- 1 file changed, 40 insertions(+), 13 deletions(-) (limited to 'include/uapi') diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h index ef2be64bf4c3..43014981550a 100644 --- a/include/uapi/rdma/ib_user_verbs.h +++ b/include/uapi/rdma/ib_user_verbs.h @@ -701,6 +701,14 @@ struct ib_uverbs_detach_mcast { }; #ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING +struct ib_uverbs_flow_spec_hdr { + __u32 type; + __u16 size; + __u16 reserved; + /* followed by flow_spec */ + __u64 flow_spec_data[0]; +}; + struct ib_uverbs_flow_eth_filter { __u8 dst_mac[6]; __u8 src_mac[6]; @@ -709,9 +717,14 @@ struct ib_uverbs_flow_eth_filter { }; struct ib_uverbs_flow_spec_eth { - __u32 type; - __u16 size; - __u16 reserved; + union { + struct ib_uverbs_flow_spec_hdr hdr; + struct { + __u32 type; + __u16 size; + __u16 reserved; + }; + }; struct ib_uverbs_flow_eth_filter val; struct ib_uverbs_flow_eth_filter mask; }; @@ -722,9 +735,14 @@ struct ib_uverbs_flow_ipv4_filter { }; struct ib_uverbs_flow_spec_ipv4 { - __u32 type; - __u16 size; - __u16 reserved; + union { + struct ib_uverbs_flow_spec_hdr hdr; + struct { + __u32 type; + __u16 size; + __u16 reserved; + }; + }; struct ib_uverbs_flow_ipv4_filter val; struct ib_uverbs_flow_ipv4_filter mask; }; @@ -735,19 +753,27 @@ struct ib_uverbs_flow_tcp_udp_filter { }; struct ib_uverbs_flow_spec_tcp_udp { - __u32 type; - __u16 size; - __u16 reserved; + union { + struct ib_uverbs_flow_spec_hdr hdr; + struct { + __u32 type; + __u16 size; + __u16 reserved; + }; + }; struct ib_uverbs_flow_tcp_udp_filter val; struct ib_uverbs_flow_tcp_udp_filter mask; }; struct ib_uverbs_flow_spec { union { - struct { - __u32 type; - __u16 size; - __u16 reserved; + union { + struct ib_uverbs_flow_spec_hdr hdr; + struct { + __u32 type; + __u16 size; + __u16 reserved; + }; }; struct ib_uverbs_flow_spec_eth eth; struct ib_uverbs_flow_spec_ipv4 ipv4; @@ -767,6 +793,7 @@ struct ib_uverbs_flow_attr { * struct ib_flow_spec_xxx * struct ib_flow_spec_yyy */ + struct ib_uverbs_flow_spec_hdr flow_specs[0]; }; struct ib_uverbs_create_flow { -- cgit v1.2.3 From 2490f20be496c2da14ae4632a8c60e0633e97fd0 Mon Sep 17 00:00:00 2001 From: Yann Droneaud Date: Wed, 6 Nov 2013 23:21:48 +0100 Subject: IB/core: Remove ib_uverbs_flow_spec structure from userspace The structure holding any types of flow_spec is of no use to userspace. It would be wrong for userspace to do: struct ib_uverbs_flow_spec flow_spec; flow_spec.type = IB_FLOW_SPEC_TCP; flow_spec.size = sizeof(flow_spec); Instead, userspace should use the dedicated flow_spec structure for - Ethernet : struct ib_uverbs_flow_spec_eth, - IPv4 : struct ib_uverbs_flow_spec_ipv4, - TCP/UDP : struct ib_uverbs_flow_spec_tcp_udp. In other words, struct ib_uverbs_flow_spec is a "virtual" data structure that can only be use by the kernel as an alias to the other. Signed-off-by: Yann Droneaud Link: http://marc.info/?i=cover.1383773832.git.ydroneaud@opteya.com Signed-off-by: Roland Dreier --- drivers/infiniband/core/uverbs.h | 16 ++++++++++++++++ include/uapi/rdma/ib_user_verbs.h | 16 ---------------- 2 files changed, 16 insertions(+), 16 deletions(-) (limited to 'include/uapi') diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h index d8f9c6c272d7..777954f67270 100644 --- a/drivers/infiniband/core/uverbs.h +++ b/drivers/infiniband/core/uverbs.h @@ -178,6 +178,22 @@ void ib_uverbs_event_handler(struct ib_event_handler *handler, struct ib_event *event); void ib_uverbs_dealloc_xrcd(struct ib_uverbs_device *dev, struct ib_xrcd *xrcd); +struct ib_uverbs_flow_spec { + union { + union { + struct ib_uverbs_flow_spec_hdr hdr; + struct { + __u32 type; + __u16 size; + __u16 reserved; + }; + }; + struct ib_uverbs_flow_spec_eth eth; + struct ib_uverbs_flow_spec_ipv4 ipv4; + struct ib_uverbs_flow_spec_tcp_udp tcp_udp; + }; +}; + #define IB_UVERBS_DECLARE_CMD(name) \ ssize_t ib_uverbs_##name(struct ib_uverbs_file *file, \ const char __user *buf, int in_len, \ diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h index 43014981550a..fc9bbe37cfce 100644 --- a/include/uapi/rdma/ib_user_verbs.h +++ b/include/uapi/rdma/ib_user_verbs.h @@ -765,22 +765,6 @@ struct ib_uverbs_flow_spec_tcp_udp { struct ib_uverbs_flow_tcp_udp_filter mask; }; -struct ib_uverbs_flow_spec { - union { - union { - struct ib_uverbs_flow_spec_hdr hdr; - struct { - __u32 type; - __u16 size; - __u16 reserved; - }; - }; - struct ib_uverbs_flow_spec_eth eth; - struct ib_uverbs_flow_spec_ipv4 ipv4; - struct ib_uverbs_flow_spec_tcp_udp tcp_udp; - }; -}; - struct ib_uverbs_flow_attr { __u32 type; __u16 size; -- cgit v1.2.3 From f21519b23c1b6fa25366be4114ccf7fcf1c190f9 Mon Sep 17 00:00:00 2001 From: Yann Droneaud Date: Wed, 6 Nov 2013 23:21:49 +0100 Subject: IB/core: extended command: an improved infrastructure for uverbs commands Commit 400dbc96583f ("IB/core: Infrastructure for extensible uverbs commands") added an infrastructure for extensible uverbs commands while later commit 436f2ad05a0b ("IB/core: Export ib_create/destroy_flow through uverbs") exported ib_create_flow()/ib_destroy_flow() functions using this new infrastructure. According to the commit 400dbc96583f, the purpose of this infrastructure is to support passing around provider (eg. hardware) specific buffers when userspace issue commands to the kernel, so that it would be possible to extend uverbs (eg. core) buffers independently from the provider buffers. But the new kernel command function prototypes were not modified to take advantage of this extension. This issue was exposed by Roland Dreier in a previous review[1]. So the following patch is an attempt to a revised extensible command infrastructure. This improved extensible command infrastructure distinguish between core (eg. legacy)'s command/response buffers from provider (eg. hardware)'s command/response buffers: each extended command implementing function is given a struct ib_udata to hold core (eg. uverbs) input and output buffers, and another struct ib_udata to hold the hw (eg. provider) input and output buffers. Having those buffers identified separately make it easier to increase one buffer to support extension without having to add some code to guess the exact size of each command/response parts: This should make the extended functions more reliable. Additionally, instead of relying on command identifier being greater than IB_USER_VERBS_CMD_THRESHOLD, the proposed infrastructure rely on unused bits in command field: on the 32 bits provided by command field, only 6 bits are really needed to encode the identifier of commands currently supported by the kernel. (Even using only 6 bits leaves room for about 23 new commands). So this patch makes use of some high order bits in command field to store flags, leaving enough room for more command identifiers than one will ever need (eg. 256). The new flags are used to specify if the command should be processed as an extended one or a legacy one. While designing the new command format, care was taken to make usage of flags itself extensible. Using high order bits of the commands field ensure that newer libibverbs on older kernel will properly fail when trying to call extended commands. On the other hand, older libibverbs on newer kernel will never be able to issue calls to extended commands. The extended command header includes the optional response pointer so that output buffer length and output buffer pointer are located together in the command, allowing proper parameters checking. This should make implementing functions easier and safer. Additionally the extended header ensure 64bits alignment, while making all sizes multiple of 8 bytes, extending the maximum buffer size: legacy extended Maximum command buffer: 256KBytes 1024KBytes (512KBytes + 512KBytes) Maximum response buffer: 256KBytes 1024KBytes (512KBytes + 512KBytes) For the purpose of doing proper buffer size accounting, the headers size are no more taken in account in "in_words". One of the odds of the current extensible infrastructure, reading twice the "legacy" command header, is fixed by removing the "legacy" command header from the extended command header: they are processed as two different parts of the command: memory is read once and information are not duplicated: it's making clear that's an extended command scheme and not a different command scheme. The proposed scheme will format input (command) and output (response) buffers this way: - command: legacy header + extended header + command data (core + hw): +----------------------------------------+ | flags | 00 00 | command | | in_words | out_words | +----------------------------------------+ | response | | response | | provider_in_words | provider_out_words | | padding | +----------------------------------------+ | | . . . (in_words * 8) . | | +----------------------------------------+ | | . . . (provider_in_words * 8) . | | +----------------------------------------+ - response, if present: +----------------------------------------+ | | . . . (out_words * 8) . | | +----------------------------------------+ | | . . . (provider_out_words * 8) . | | +----------------------------------------+ The overall design is to ensure that the extensible infrastructure is itself extensible while begin more reliable with more input and bound checking. Note: The unused field in the extended header would be perfect candidate to hold the command "comp_mask" (eg. bit field used to handle compatibility). This was suggested by Roland Dreier in a previous review[2]. But "comp_mask" field is likely to be present in the uverb input and/or provider input, likewise for the response, as noted by Matan Barak[3], so it doesn't make sense to put "comp_mask" in the header. [1]: http://marc.info/?i=CAL1RGDWxmM17W2o_era24A-TTDeKyoL6u3NRu_=t_dhV_ZA9MA@mail.gmail.com [2]: http://marc.info/?i=CAL1RGDXJtrc849M6_XNZT5xO1+ybKtLWGq6yg6LhoSsKpsmkYA@mail.gmail.com [3]: http://marc.info/?i=525C1149.6000701@mellanox.com Signed-off-by: Yann Droneaud Link: http://marc.info/?i=cover.1383773832.git.ydroneaud@opteya.com [ Convert "ret ? ret : 0" to the equivalent "ret". - Roland ] Signed-off-by: Roland Dreier --- drivers/infiniband/core/uverbs.h | 20 +++++- drivers/infiniband/core/uverbs_cmd.c | 56 +++++++-------- drivers/infiniband/core/uverbs_main.c | 127 ++++++++++++++++++++++++++-------- drivers/infiniband/hw/mlx4/main.c | 6 +- include/rdma/ib_verbs.h | 1 + include/uapi/rdma/ib_user_verbs.h | 23 +++--- 6 files changed, 160 insertions(+), 73 deletions(-) (limited to 'include/uapi') diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h index 777954f67270..24adccbf92f9 100644 --- a/drivers/infiniband/core/uverbs.h +++ b/drivers/infiniband/core/uverbs.h @@ -47,6 +47,14 @@ #include #include +#define INIT_UDATA(udata, ibuf, obuf, ilen, olen) \ + do { \ + (udata)->inbuf = (void __user *) (ibuf); \ + (udata)->outbuf = (void __user *) (obuf); \ + (udata)->inlen = (ilen); \ + (udata)->outlen = (olen); \ + } while (0) + /* * Our lifetime rules for these structs are the following: * @@ -233,9 +241,17 @@ IB_UVERBS_DECLARE_CMD(destroy_srq); IB_UVERBS_DECLARE_CMD(create_xsrq); IB_UVERBS_DECLARE_CMD(open_xrcd); IB_UVERBS_DECLARE_CMD(close_xrcd); + #ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING -IB_UVERBS_DECLARE_CMD(create_flow); -IB_UVERBS_DECLARE_CMD(destroy_flow); + +#define IB_UVERBS_DECLARE_EX_CMD(name) \ + int ib_uverbs_ex_##name(struct ib_uverbs_file *file, \ + struct ib_udata *ucore, \ + struct ib_udata *uhw) + +IB_UVERBS_DECLARE_EX_CMD(create_flow); +IB_UVERBS_DECLARE_EX_CMD(destroy_flow); + #endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ #endif /* UVERBS_H */ diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index 19f14d82c988..33a52785f812 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -58,14 +58,6 @@ static struct uverbs_lock_class xrcd_lock_class = { .name = "XRCD-uobj" }; static struct uverbs_lock_class rule_lock_class = { .name = "RULE-uobj" }; #endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ -#define INIT_UDATA(udata, ibuf, obuf, ilen, olen) \ - do { \ - (udata)->inbuf = (void __user *) (ibuf); \ - (udata)->outbuf = (void __user *) (obuf); \ - (udata)->inlen = (ilen); \ - (udata)->outlen = (olen); \ - } while (0) - /* * The ib_uobject locking scheme is as follows: * @@ -2642,9 +2634,9 @@ static int kern_spec_to_ib_spec(struct ib_uverbs_flow_spec *kern_spec, return 0; } -ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +int ib_uverbs_ex_create_flow(struct ib_uverbs_file *file, + struct ib_udata *ucore, + struct ib_udata *uhw) { struct ib_uverbs_create_flow cmd; struct ib_uverbs_create_flow_resp resp; @@ -2658,11 +2650,15 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file, void *ib_spec; int i; - if (out_len < sizeof(resp)) + if (ucore->outlen < sizeof(resp)) return -ENOSPC; - if (copy_from_user(&cmd, buf, sizeof(cmd))) - return -EFAULT; + err = ib_copy_from_udata(&cmd, ucore, sizeof(cmd)); + if (err) + return err; + + ucore->inbuf += sizeof(cmd); + ucore->inlen -= sizeof(cmd); if (cmd.comp_mask) return -EINVAL; @@ -2674,7 +2670,7 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file, if (cmd.flow_attr.num_of_specs > IB_FLOW_SPEC_SUPPORT_LAYERS) return -EINVAL; - if (cmd.flow_attr.size > (in_len - sizeof(cmd)) || + if (cmd.flow_attr.size > ucore->inlen || cmd.flow_attr.size > (cmd.flow_attr.num_of_specs * sizeof(struct ib_uverbs_flow_spec))) return -EINVAL; @@ -2686,11 +2682,10 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file, return -ENOMEM; memcpy(kern_flow_attr, &cmd.flow_attr, sizeof(*kern_flow_attr)); - if (copy_from_user(kern_flow_attr + 1, buf + sizeof(cmd), - cmd.flow_attr.size)) { - err = -EFAULT; + err = ib_copy_from_udata(kern_flow_attr + 1, ucore, + cmd.flow_attr.size); + if (err) goto err_free_attr; - } } else { kern_flow_attr = &cmd.flow_attr; } @@ -2758,11 +2753,10 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file, memset(&resp, 0, sizeof(resp)); resp.flow_handle = uobj->id; - if (copy_to_user((void __user *)(unsigned long) cmd.response, - &resp, sizeof(resp))) { - err = -EFAULT; + err = ib_copy_to_udata(ucore, + &resp, sizeof(resp)); + if (err) goto err_copy; - } put_qp_read(qp); mutex_lock(&file->mutex); @@ -2775,7 +2769,7 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file, kfree(flow_attr); if (cmd.flow_attr.num_of_specs) kfree(kern_flow_attr); - return in_len; + return 0; err_copy: idr_remove_uobj(&ib_uverbs_rule_idr, uobj); destroy_flow: @@ -2792,16 +2786,18 @@ err_free_attr: return err; } -ssize_t ib_uverbs_destroy_flow(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) { +int ib_uverbs_ex_destroy_flow(struct ib_uverbs_file *file, + struct ib_udata *ucore, + struct ib_udata *uhw) +{ struct ib_uverbs_destroy_flow cmd; struct ib_flow *flow_id; struct ib_uobject *uobj; int ret; - if (copy_from_user(&cmd, buf, sizeof(cmd))) - return -EFAULT; + ret = ib_copy_from_udata(&cmd, ucore, sizeof(cmd)); + if (ret) + return ret; uobj = idr_write_uobj(&ib_uverbs_rule_idr, cmd.flow_handle, file->ucontext); @@ -2823,7 +2819,7 @@ ssize_t ib_uverbs_destroy_flow(struct ib_uverbs_file *file, put_uobj(uobj); - return ret ? ret : in_len; + return ret; } #endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c index 2df31f68ea09..189d99e76d9f 100644 --- a/drivers/infiniband/core/uverbs_main.c +++ b/drivers/infiniband/core/uverbs_main.c @@ -115,11 +115,16 @@ static ssize_t (*uverbs_cmd_table[])(struct ib_uverbs_file *file, [IB_USER_VERBS_CMD_CLOSE_XRCD] = ib_uverbs_close_xrcd, [IB_USER_VERBS_CMD_CREATE_XSRQ] = ib_uverbs_create_xsrq, [IB_USER_VERBS_CMD_OPEN_QP] = ib_uverbs_open_qp, +}; + #ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING - [IB_USER_VERBS_CMD_CREATE_FLOW] = ib_uverbs_create_flow, - [IB_USER_VERBS_CMD_DESTROY_FLOW] = ib_uverbs_destroy_flow -#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ +static int (*uverbs_ex_cmd_table[])(struct ib_uverbs_file *file, + struct ib_udata *ucore, + struct ib_udata *uhw) = { + [IB_USER_VERBS_EX_CMD_CREATE_FLOW] = ib_uverbs_ex_create_flow, + [IB_USER_VERBS_EX_CMD_DESTROY_FLOW] = ib_uverbs_ex_destroy_flow }; +#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ static void ib_uverbs_add_one(struct ib_device *device); static void ib_uverbs_remove_one(struct ib_device *device); @@ -589,6 +594,7 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf, { struct ib_uverbs_file *file = filp->private_data; struct ib_uverbs_cmd_hdr hdr; + __u32 flags; if (count < sizeof hdr) return -EINVAL; @@ -596,45 +602,108 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf, if (copy_from_user(&hdr, buf, sizeof hdr)) return -EFAULT; - if (hdr.command >= ARRAY_SIZE(uverbs_cmd_table) || - !uverbs_cmd_table[hdr.command]) - return -EINVAL; + flags = (hdr.command & + IB_USER_VERBS_CMD_FLAGS_MASK) >> IB_USER_VERBS_CMD_FLAGS_SHIFT; - if (!file->ucontext && - hdr.command != IB_USER_VERBS_CMD_GET_CONTEXT) - return -EINVAL; + if (!flags) { + __u32 command; - if (!(file->device->ib_dev->uverbs_cmd_mask & (1ull << hdr.command))) - return -ENOSYS; + if (hdr.command & ~(__u32)(IB_USER_VERBS_CMD_FLAGS_MASK | + IB_USER_VERBS_CMD_COMMAND_MASK)) + return -EINVAL; -#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING - if (hdr.command >= IB_USER_VERBS_CMD_THRESHOLD) { - struct ib_uverbs_cmd_hdr_ex hdr_ex; + command = hdr.command & IB_USER_VERBS_CMD_COMMAND_MASK; - if (copy_from_user(&hdr_ex, buf, sizeof(hdr_ex))) - return -EFAULT; + if (command >= ARRAY_SIZE(uverbs_cmd_table) || + !uverbs_cmd_table[command]) + return -EINVAL; - if (((hdr_ex.in_words + hdr_ex.provider_in_words) * 4) != count) + if (!file->ucontext && + command != IB_USER_VERBS_CMD_GET_CONTEXT) return -EINVAL; - return uverbs_cmd_table[hdr.command](file, - buf + sizeof(hdr_ex), - (hdr_ex.in_words + - hdr_ex.provider_in_words) * 4, - (hdr_ex.out_words + - hdr_ex.provider_out_words) * 4); - } else { -#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ + if (!(file->device->ib_dev->uverbs_cmd_mask & (1ull << command))) + return -ENOSYS; + if (hdr.in_words * 4 != count) return -EINVAL; - return uverbs_cmd_table[hdr.command](file, - buf + sizeof(hdr), - hdr.in_words * 4, - hdr.out_words * 4); + return uverbs_cmd_table[command](file, + buf + sizeof(hdr), + hdr.in_words * 4, + hdr.out_words * 4); + #ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING + + } else if (flags == IB_USER_VERBS_CMD_FLAG_EXTENDED) { + __u32 command; + + struct ib_uverbs_ex_cmd_hdr ex_hdr; + struct ib_udata ucore; + struct ib_udata uhw; + int err; + size_t written_count = count; + + if (hdr.command & ~(__u32)(IB_USER_VERBS_CMD_FLAGS_MASK | + IB_USER_VERBS_CMD_COMMAND_MASK)) + return -EINVAL; + + command = hdr.command & IB_USER_VERBS_CMD_COMMAND_MASK; + + if (command >= ARRAY_SIZE(uverbs_ex_cmd_table) || + !uverbs_ex_cmd_table[command]) + return -ENOSYS; + + if (!file->ucontext) + return -EINVAL; + + if (!(file->device->ib_dev->uverbs_ex_cmd_mask & (1ull << command))) + return -ENOSYS; + + if (count < (sizeof(hdr) + sizeof(ex_hdr))) + return -EINVAL; + + if (copy_from_user(&ex_hdr, buf + sizeof(hdr), sizeof(ex_hdr))) + return -EFAULT; + + count -= sizeof(hdr) + sizeof(ex_hdr); + buf += sizeof(hdr) + sizeof(ex_hdr); + + if ((hdr.in_words + ex_hdr.provider_in_words) * 8 != count) + return -EINVAL; + + if (ex_hdr.response) { + if (!hdr.out_words && !ex_hdr.provider_out_words) + return -EINVAL; + } else { + if (hdr.out_words || ex_hdr.provider_out_words) + return -EINVAL; + } + + INIT_UDATA(&ucore, + (hdr.in_words) ? buf : 0, + (unsigned long)ex_hdr.response, + hdr.in_words * 8, + hdr.out_words * 8); + + INIT_UDATA(&uhw, + (ex_hdr.provider_in_words) ? buf + ucore.inlen : 0, + (ex_hdr.provider_out_words) ? (unsigned long)ex_hdr.response + ucore.outlen : 0, + ex_hdr.provider_in_words * 8, + ex_hdr.provider_out_words * 8); + + err = uverbs_ex_cmd_table[command](file, + &ucore, + &uhw); + + if (err) + return err; + + return written_count; } #endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ + + return -ENOSYS; } static int ib_uverbs_mmap(struct file *filp, struct vm_area_struct *vma) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index f0612645de99..4be29fef66d6 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -1692,9 +1692,9 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) ibdev->ib_dev.destroy_flow = mlx4_ib_destroy_flow; #ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING - ibdev->ib_dev.uverbs_cmd_mask |= - (1ull << IB_USER_VERBS_CMD_CREATE_FLOW) | - (1ull << IB_USER_VERBS_CMD_DESTROY_FLOW); + ibdev->ib_dev.uverbs_ex_cmd_mask |= + (1ull << IB_USER_VERBS_EX_CMD_CREATE_FLOW) | + (1ull << IB_USER_VERBS_EX_CMD_DESTROY_FLOW); #endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ } diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index e393171e2fac..a06fc122f803 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -1436,6 +1436,7 @@ struct ib_device { int uverbs_abi_ver; u64 uverbs_cmd_mask; + u64 uverbs_ex_cmd_mask; char node_desc[64]; __be64 node_guid; diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h index fc9bbe37cfce..6ace125e1af6 100644 --- a/include/uapi/rdma/ib_user_verbs.h +++ b/include/uapi/rdma/ib_user_verbs.h @@ -87,11 +87,14 @@ enum { IB_USER_VERBS_CMD_CLOSE_XRCD, IB_USER_VERBS_CMD_CREATE_XSRQ, IB_USER_VERBS_CMD_OPEN_QP, +}; + #ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING - IB_USER_VERBS_CMD_CREATE_FLOW = IB_USER_VERBS_CMD_THRESHOLD, - IB_USER_VERBS_CMD_DESTROY_FLOW -#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ +enum { + IB_USER_VERBS_EX_CMD_CREATE_FLOW = IB_USER_VERBS_CMD_THRESHOLD, + IB_USER_VERBS_EX_CMD_DESTROY_FLOW }; +#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ /* * Make sure that all structs defined in this file remain laid out so @@ -122,6 +125,12 @@ struct ib_uverbs_comp_event_desc { * the rest of the command struct based on these value. */ +#define IB_USER_VERBS_CMD_COMMAND_MASK 0xff +#define IB_USER_VERBS_CMD_FLAGS_MASK 0xff000000u +#define IB_USER_VERBS_CMD_FLAGS_SHIFT 24 + +#define IB_USER_VERBS_CMD_FLAG_EXTENDED 0x80 + struct ib_uverbs_cmd_hdr { __u32 command; __u16 in_words; @@ -129,10 +138,8 @@ struct ib_uverbs_cmd_hdr { }; #ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING -struct ib_uverbs_cmd_hdr_ex { - __u32 command; - __u16 in_words; - __u16 out_words; +struct ib_uverbs_ex_cmd_hdr { + __u64 response; __u16 provider_in_words; __u16 provider_out_words; __u32 cmd_hdr_reserved; @@ -782,8 +789,6 @@ struct ib_uverbs_flow_attr { struct ib_uverbs_create_flow { __u32 comp_mask; - __u32 reserved; - __u64 response; __u32 qp_handle; struct ib_uverbs_flow_attr flow_attr; }; -- cgit v1.2.3 From 69ad5da41b4ed94aef31d4111a3442cfd73ce570 Mon Sep 17 00:00:00 2001 From: Matan Barak Date: Wed, 6 Nov 2013 23:21:50 +0100 Subject: IB/core: Re-enable create_flow/destroy_flow uverbs This commit reverts commit 7afbddfae993 ("IB/core: Temporarily disable create_flow/destroy_flow uverbs"). Since the uverbs extensions functionality was experimental for v3.12, this patch re-enables the support for them and flow-steering for v3.13. Signed-off-by: Matan Barak Signed-off-by: Roland Dreier --- drivers/infiniband/Kconfig | 11 ----------- drivers/infiniband/core/uverbs.h | 4 ---- drivers/infiniband/core/uverbs_cmd.c | 4 ---- drivers/infiniband/core/uverbs_main.c | 5 ----- drivers/infiniband/hw/mlx4/main.c | 2 -- include/uapi/rdma/ib_user_verbs.h | 6 ------ 6 files changed, 32 deletions(-) (limited to 'include/uapi') diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig index b84791f03a27..5ceda710f516 100644 --- a/drivers/infiniband/Kconfig +++ b/drivers/infiniband/Kconfig @@ -31,17 +31,6 @@ config INFINIBAND_USER_ACCESS libibverbs, libibcm and a hardware driver library from . -config INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING - bool "Experimental and unstable ABI for userspace access to flow steering verbs" - depends on INFINIBAND_USER_ACCESS - depends on STAGING - ---help--- - The final ABI for userspace access to flow steering verbs - has not been defined. To use the current ABI, *WHICH WILL - CHANGE IN THE FUTURE*, say Y here. - - If unsure, say N. - config INFINIBAND_USER_MEM bool depends on INFINIBAND_USER_ACCESS != n diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h index 24adccbf92f9..bdc842e9faef 100644 --- a/drivers/infiniband/core/uverbs.h +++ b/drivers/infiniband/core/uverbs.h @@ -242,8 +242,6 @@ IB_UVERBS_DECLARE_CMD(create_xsrq); IB_UVERBS_DECLARE_CMD(open_xrcd); IB_UVERBS_DECLARE_CMD(close_xrcd); -#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING - #define IB_UVERBS_DECLARE_EX_CMD(name) \ int ib_uverbs_ex_##name(struct ib_uverbs_file *file, \ struct ib_udata *ucore, \ @@ -252,6 +250,4 @@ IB_UVERBS_DECLARE_CMD(close_xrcd); IB_UVERBS_DECLARE_EX_CMD(create_flow); IB_UVERBS_DECLARE_EX_CMD(destroy_flow); -#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ - #endif /* UVERBS_H */ diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index 33a52785f812..8233744b4140 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -54,9 +54,7 @@ static struct uverbs_lock_class qp_lock_class = { .name = "QP-uobj" }; static struct uverbs_lock_class ah_lock_class = { .name = "AH-uobj" }; static struct uverbs_lock_class srq_lock_class = { .name = "SRQ-uobj" }; static struct uverbs_lock_class xrcd_lock_class = { .name = "XRCD-uobj" }; -#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING static struct uverbs_lock_class rule_lock_class = { .name = "RULE-uobj" }; -#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ /* * The ib_uobject locking scheme is as follows: @@ -2593,7 +2591,6 @@ out_put: return ret ? ret : in_len; } -#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING static int kern_spec_to_ib_spec(struct ib_uverbs_flow_spec *kern_spec, union ib_flow_spec *ib_spec) { @@ -2821,7 +2818,6 @@ int ib_uverbs_ex_destroy_flow(struct ib_uverbs_file *file, return ret; } -#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ static int __uverbs_create_xsrq(struct ib_uverbs_file *file, struct ib_uverbs_create_xsrq *cmd, diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c index 189d99e76d9f..34386943ebcf 100644 --- a/drivers/infiniband/core/uverbs_main.c +++ b/drivers/infiniband/core/uverbs_main.c @@ -117,14 +117,12 @@ static ssize_t (*uverbs_cmd_table[])(struct ib_uverbs_file *file, [IB_USER_VERBS_CMD_OPEN_QP] = ib_uverbs_open_qp, }; -#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING static int (*uverbs_ex_cmd_table[])(struct ib_uverbs_file *file, struct ib_udata *ucore, struct ib_udata *uhw) = { [IB_USER_VERBS_EX_CMD_CREATE_FLOW] = ib_uverbs_ex_create_flow, [IB_USER_VERBS_EX_CMD_DESTROY_FLOW] = ib_uverbs_ex_destroy_flow }; -#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ static void ib_uverbs_add_one(struct ib_device *device); static void ib_uverbs_remove_one(struct ib_device *device); @@ -633,8 +631,6 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf, hdr.in_words * 4, hdr.out_words * 4); -#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING - } else if (flags == IB_USER_VERBS_CMD_FLAG_EXTENDED) { __u32 command; @@ -701,7 +697,6 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf, return written_count; } -#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ return -ENOSYS; } diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 4be29fef66d6..1aad9b3e6bdd 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -1691,11 +1691,9 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) ibdev->ib_dev.create_flow = mlx4_ib_create_flow; ibdev->ib_dev.destroy_flow = mlx4_ib_destroy_flow; -#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING ibdev->ib_dev.uverbs_ex_cmd_mask |= (1ull << IB_USER_VERBS_EX_CMD_CREATE_FLOW) | (1ull << IB_USER_VERBS_EX_CMD_DESTROY_FLOW); -#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ } mlx4_ib_alloc_eqs(dev, ibdev); diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h index 6ace125e1af6..cbfdd4ca9510 100644 --- a/include/uapi/rdma/ib_user_verbs.h +++ b/include/uapi/rdma/ib_user_verbs.h @@ -89,12 +89,10 @@ enum { IB_USER_VERBS_CMD_OPEN_QP, }; -#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING enum { IB_USER_VERBS_EX_CMD_CREATE_FLOW = IB_USER_VERBS_CMD_THRESHOLD, IB_USER_VERBS_EX_CMD_DESTROY_FLOW }; -#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ /* * Make sure that all structs defined in this file remain laid out so @@ -137,14 +135,12 @@ struct ib_uverbs_cmd_hdr { __u16 out_words; }; -#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING struct ib_uverbs_ex_cmd_hdr { __u64 response; __u16 provider_in_words; __u16 provider_out_words; __u32 cmd_hdr_reserved; }; -#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ struct ib_uverbs_get_context { __u64 response; @@ -707,7 +703,6 @@ struct ib_uverbs_detach_mcast { __u64 driver_data[0]; }; -#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING struct ib_uverbs_flow_spec_hdr { __u32 type; __u16 size; @@ -802,7 +797,6 @@ struct ib_uverbs_destroy_flow { __u32 comp_mask; __u32 flow_handle; }; -#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ struct ib_uverbs_create_srq { __u64 response; -- cgit v1.2.3