diff options
| author | Raghu Vatsavayi | 2016-06-15 01:54:47 +0200 |
|---|---|---|
| committer | David S. Miller | 2016-06-16 06:44:32 +0200 |
| commit | cabeb13be9827991915a985d4b5683e59cba2f58 (patch) | |
| tree | 6eaf300c407461319d6ce0325aa71148fc5a344c /drivers/net/ethernet/cavium/liquidio/octeon_droq.h | |
| parent | liquidio:RX queue alloc changes (diff) | |
| download | kernel-qcow2-linux-cabeb13be9827991915a985d4b5683e59cba2f58.tar.gz kernel-qcow2-linux-cabeb13be9827991915a985d4b5683e59cba2f58.tar.xz kernel-qcow2-linux-cabeb13be9827991915a985d4b5683e59cba2f58.zip | |
liquidio: RX desc alloc changes
This patch is to add page based buffers for receive side descriptors of
the driver and separate free routines for rx and tx buffers.
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/cavium/liquidio/octeon_droq.h')
| -rw-r--r-- | drivers/net/ethernet/cavium/liquidio/octeon_droq.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_droq.h b/drivers/net/ethernet/cavium/liquidio/octeon_droq.h index 7940ccee12d9..91c365c4185f 100644 --- a/drivers/net/ethernet/cavium/liquidio/octeon_droq.h +++ b/drivers/net/ethernet/cavium/liquidio/octeon_droq.h @@ -65,6 +65,17 @@ struct octeon_droq_info { #define OCT_DROQ_INFO_SIZE (sizeof(struct octeon_droq_info)) +struct octeon_skb_page_info { + /* DMA address for the page */ + dma_addr_t dma; + + /* Page for the rx dma **/ + struct page *page; + + /** which offset into page */ + unsigned int page_offset; +}; + /** Pointer to data buffer. * Driver keeps a pointer to the data buffer that it made available to * the Octeon device. Since the descriptor ring keeps physical (bus) @@ -77,6 +88,9 @@ struct octeon_recv_buffer { /** Data in the packet buffer. */ u8 *data; + + /** pg_info **/ + struct octeon_skb_page_info pg_info; }; #define OCT_DROQ_RECVBUF_SIZE (sizeof(struct octeon_recv_buffer)) @@ -106,6 +120,10 @@ struct oct_droq_stats { /** Num of Packets dropped due to receive path failures. */ u64 rx_dropped; + + /** Num of failures of recv_buffer_alloc() */ + u64 rx_alloc_failure; + }; #define POLL_EVENT_INTR_ARRIVED 1 |