diff options
| -rw-r--r-- | include/uapi/linux/io_uring/query.h | 8 | ||||
| -rw-r--r-- | io_uring/query.c | 13 |
2 files changed, 21 insertions, 0 deletions
diff --git a/include/uapi/linux/io_uring/query.h b/include/uapi/linux/io_uring/query.h index fc0cb1580e47..2456e6c5ebb5 100644 --- a/include/uapi/linux/io_uring/query.h +++ b/include/uapi/linux/io_uring/query.h @@ -19,6 +19,7 @@ struct io_uring_query_hdr { enum { IO_URING_QUERY_OPCODES = 0, IO_URING_QUERY_ZCRX = 1, + IO_URING_QUERY_SCQ = 2, __IO_URING_QUERY_MAX, }; @@ -57,4 +58,11 @@ struct io_uring_query_zcrx { __u64 __resv2; }; +struct io_uring_query_scq { + /* The SQ/CQ rings header size */ + __u64 hdr_size; + /* The alignment for the header */ + __u64 hdr_alignment; +}; + #endif diff --git a/io_uring/query.c b/io_uring/query.c index 6f9fa5153903..e61b6221f87f 100644 --- a/io_uring/query.c +++ b/io_uring/query.c @@ -9,6 +9,7 @@ union io_query_data { struct io_uring_query_opcode opcodes; struct io_uring_query_zcrx zcrx; + struct io_uring_query_scq scq; }; #define IO_MAX_QUERY_SIZE sizeof(union io_query_data) @@ -43,6 +44,15 @@ static ssize_t io_query_zcrx(union io_query_data *data) return sizeof(*e); } +static ssize_t io_query_scq(union io_query_data *data) +{ + struct io_uring_query_scq *e = &data->scq; + + e->hdr_size = sizeof(struct io_rings); + e->hdr_alignment = SMP_CACHE_BYTES; + return sizeof(*e); +} + static int io_handle_query_entry(struct io_ring_ctx *ctx, union io_query_data *data, void __user *uhdr, u64 *next_entry) @@ -74,6 +84,9 @@ static int io_handle_query_entry(struct io_ring_ctx *ctx, case IO_URING_QUERY_ZCRX: ret = io_query_zcrx(data); break; + case IO_URING_QUERY_SCQ: + ret = io_query_scq(data); + break; } if (ret >= 0) { |