search for: mrg_buf_ctx_head

...+ /* Circular buffer of mergeable rxbuf contexts. */ > + struct mergeable_receive_buf_ctx *mrg_buf_ctx; > + > + /* Number of elements & head index of mrg_buf_ctx. Size must be > + * equal to the associated virtqueue's vring size. > + */ > + unsigned int mrg_buf_ctx_size, mrg_buf_ctx_head; > + > struct napi_struct napi; > > /* Number of input buffers, and max we've ever had. */ > @@ -78,6 +102,9 @@ struct receive_queue { > /* Chain pages by the private ptr. */ > struct page *pages; > > + /* Average packet length for mergeable receive buffer...

...+ /* Circular buffer of mergeable rxbuf contexts. */ > + struct mergeable_receive_buf_ctx *mrg_buf_ctx; > + > + /* Number of elements & head index of mrg_buf_ctx. Size must be > + * equal to the associated virtqueue's vring size. > + */ > + unsigned int mrg_buf_ctx_size, mrg_buf_ctx_head; > + > struct napi_struct napi; > > /* Number of input buffers, and max we've ever had. */ > @@ -78,6 +102,9 @@ struct receive_queue { > /* Chain pages by the private ptr. */ > struct page *pages; > > + /* Average packet length for mergeable receive buffer...

...*/ struct virtqueue *vq; + /* Circular buffer of mergeable rxbuf contexts. */ + struct mergeable_receive_buf_ctx *mrg_buf_ctx; + + /* Number of elements & head index of mrg_buf_ctx. Size must be + * equal to the associated virtqueue's vring size. + */ + unsigned int mrg_buf_ctx_size, mrg_buf_ctx_head; + struct napi_struct napi; /* Number of input buffers, and max we've ever had. */ @@ -78,6 +102,9 @@ struct receive_queue { /* Chain pages by the private ptr. */ struct page *pages; + /* Average packet length for mergeable receive buffers. */ + struct ewma mrg_avg_pkt_len; + /* P...

skb_page_frag_refill currently permits only order-0 page allocs unless GFP_WAIT is used. Change skb_page_frag_refill to attempt higher-order page allocations whether or not GFP_WAIT is used. If memory cannot be allocated, the allocator will fall back to successively smaller page allocs (down to order-0 page allocs). This change brings skb_page_frag_refill in line with the existing page allocation

skb_page_frag_refill currently permits only order-0 page allocs unless GFP_WAIT is used. Change skb_page_frag_refill to attempt higher-order page allocations whether or not GFP_WAIT is used. If memory cannot be allocated, the allocator will fall back to successively smaller page allocs (down to order-0 page allocs). This change brings skb_page_frag_refill in line with the existing page allocation

...+ /* Circular buffer of mergeable rxbuf contexts. */ > + struct mergeable_receive_buf_ctx *mrg_buf_ctx; > + > + /* Number of elements & head index of mrg_buf_ctx. Size must be > + * equal to the associated virtqueue's vring size. > + */ > + unsigned int mrg_buf_ctx_size, mrg_buf_ctx_head; > + > struct napi_struct napi; > > /* Number of input buffers, and max we've ever had. */ > @@ -78,6 +102,9 @@ struct receive_queue { > /* Chain pages by the private ptr. */ > struct page *pages; > > + /* Average packet length for mergeable receive buffer...

...+ /* Circular buffer of mergeable rxbuf contexts. */ > + struct mergeable_receive_buf_ctx *mrg_buf_ctx; > + > + /* Number of elements & head index of mrg_buf_ctx. Size must be > + * equal to the associated virtqueue's vring size. > + */ > + unsigned int mrg_buf_ctx_size, mrg_buf_ctx_head; > + > struct napi_struct napi; > > /* Number of input buffers, and max we've ever had. */ > @@ -78,6 +102,9 @@ struct receive_queue { > /* Chain pages by the private ptr. */ > struct page *pages; > > + /* Average packet length for mergeable receive buffer...

...fter we know that virtqueue_add_inbuf has succeeded. I can remove the rq_num_free check from try_fill_recv, and then modify virtqueue_add_inbuf to use a local mergeable_receive_buf_ctx. Once virtqueue_add_inbuf succeeds, the contents of the local variable can be copied to rq->mrg_buf_ctx[rq->mrg_buf_ctx_head]. Best, Mike

...ue_add_inbuf has succeeded. > > I can remove the rq_num_free check from try_fill_recv, and then > modify virtqueue_add_inbuf to use a local mergeable_receive_buf_ctx. > Once virtqueue_add_inbuf succeeds, the contents of the local variable > can be copied to rq->mrg_buf_ctx[rq->mrg_buf_ctx_head]. > > Best, > > Mike You don't have to fill in ctx before calling add_inbuf, do you? Just fill it afterwards. -- MST

...ue_add_inbuf has succeeded. > > I can remove the rq_num_free check from try_fill_recv, and then > modify virtqueue_add_inbuf to use a local mergeable_receive_buf_ctx. > Once virtqueue_add_inbuf succeeds, the contents of the local variable > can be copied to rq->mrg_buf_ctx[rq->mrg_buf_ctx_head]. > > Best, > > Mike You don't have to fill in ctx before calling add_inbuf, do you? Just fill it afterwards. -- MST