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authorMohammed Hawari <mohammed@hawari.fr>2020-10-27 17:42:32 +0100
committerBeno�t Ganne <bganne@cisco.com>2020-11-13 16:58:18 +0000
commit798267aaa218b99daab4860fd630b9d4bb744c0d (patch)
treeb7a628146d4858b9ae4a232ecd9f501085eed976 /src/plugins/rdma/rdma.h
parentb8e129314aaf43a40e9bf15947578181cc53d675 (diff)
rdma: implement multiseg rx without striding rq
Change-Id: I623617ad3c80610805dd3cf2a5f371e6677f4844 Signed-off-by: Mohammed Hawari <mohammed@hawari.fr> Type: improvement
Diffstat (limited to 'src/plugins/rdma/rdma.h')
-rw-r--r--src/plugins/rdma/rdma.h41
1 files changed, 37 insertions, 4 deletions
diff --git a/src/plugins/rdma/rdma.h b/src/plugins/rdma/rdma.h
index e6d0abc0d41..a72765d117d 100644
--- a/src/plugins/rdma/rdma.h
+++ b/src/plugins/rdma/rdma.h
@@ -90,9 +90,27 @@ typedef struct
u32 wqe_cnt;
u32 wq_stride;
u32 buf_sz;
- u32 striding_wqe_tail;
+ union
+ {
+ struct
+ {
+ u32 striding_wqe_tail; /* Striding RQ: number of released whole WQE */
+ u8 log_stride_per_wqe; /* Striding RQ: number of strides in a single WQE */
+ };
+
+ struct
+ {
+ u8 *n_used_per_chain; /* Legacy RQ: for each buffer chain, how many additional segments are needed */
+
+ u32 *second_bufs; /* Legacy RQ: ring of second buffers of each chain */
+ u32 incomplete_tail; /* Legacy RQ: tail index in bufs,
+ corresponds to buffer chains with recycled valid head buffer,
+ but whose other buffers are not yet recycled (due to pool exhaustion). */
+ u16 n_total_additional_segs;
+ u8 n_ds_per_wqe; /* Legacy RQ: number of nonnull data segs per WQE */
+ };
+ };
u8 log_wqe_sz; /* log-size of a single WQE (in data segments) */
- u8 log_stride_per_wqe; /* Striding RQ: number of strides in a single WQE */
} rdma_rxq_t;
typedef struct
@@ -200,8 +218,20 @@ typedef struct
u16x8 cqe_flags8[VLIB_FRAME_SIZE / 8];
u16x16 cqe_flags16[VLIB_FRAME_SIZE / 16];
};
- u32 current_segs[VLIB_FRAME_SIZE];
- u32 to_free_buffers[VLIB_FRAME_SIZE];
+ union
+ {
+ struct
+ {
+ u32 current_segs[VLIB_FRAME_SIZE];
+ u32 to_free_buffers[VLIB_FRAME_SIZE];
+ }; /* Specific to STRIDING RQ mode */
+ struct
+ {
+ u32 tmp_bi[VLIB_FRAME_SIZE];
+ vlib_buffer_t *tmp_bufs[VLIB_FRAME_SIZE];
+ }; /* Specific to LEGACY RQ mode */
+ };
+
vlib_buffer_t buffer_template;
} rdma_per_thread_data_t;
@@ -230,6 +260,9 @@ typedef struct
u32 txq_size;
u32 rxq_num;
rdma_mode_t mode;
+ u8 no_multi_seg;
+ u8 disable_striding_rq;
+ u16 max_pktlen;
/* return */
int rv;