diff options
| author |   Nick Child <nnac123@linux.ibm.com> | 2022-09-28 16:43:49 -0500 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2022-09-30 12:40:22 +0100 |
| commit | d926793c1de96e4e519b5489fe5be95a470c175f (patch) | |
| tree | bec23212ca43a28d39cb1d60de5ea4bd0b3537e4 /drivers/net/ethernet/ibm/ibmveth.h | |
| parent | ibmveth: Copy tx skbs into a premapped buffer (diff) | |
| download | linux-dev-d926793c1de96e4e519b5489fe5be95a470c175f.tar.xz linux-dev-d926793c1de96e4e519b5489fe5be95a470c175f.zip | |
ibmveth: Implement multi queue on xmit
The `ndo_start_xmit` function is protected by a spinlock on the tx queue
being used to transmit the skb. Allow concurrent calls to
`ndo_start_xmit` by using more than one tx queue. This allows for
greater throughput when several jobs are trying to transmit data.
Introduce 16 tx queues (leave single rx queue as is) which each
correspond to one DMA mapped long term buffer.
Signed-off-by: Nick Child <nnac123@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/ibm/ibmveth.h')
| -rw-r--r-- | drivers/net/ethernet/ibm/ibmveth.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/ethernet/ibm/ibmveth.h b/drivers/net/ethernet/ibm/ibmveth.h index a46ead9b31de..daf6f615c03f 100644 --- a/drivers/net/ethernet/ibm/ibmveth.h +++ b/drivers/net/ethernet/ibm/ibmveth.h @@ -99,6 +99,7 @@ static inline long h_illan_attributes(unsigned long unit_address, #define IBMVETH_FILT_LIST_SIZE 4096 #define IBMVETH_MAX_BUF_SIZE (1024 * 128) #define IBMVETH_MAX_TX_BUF_SIZE (1024 * 64) +#define IBMVETH_MAX_QUEUES 16U static int pool_size[] = { 512, 1024 * 2, 1024 * 16, 1024 * 32, 1024 * 64 }; static int pool_count[] = { 256, 512, 256, 256, 256 }; @@ -138,9 +139,9 @@ struct ibmveth_adapter { unsigned int mcastFilterSize; void * buffer_list_addr; void * filter_list_addr; - void *tx_ltb_ptr; + void *tx_ltb_ptr[IBMVETH_MAX_QUEUES]; unsigned int tx_ltb_size; - dma_addr_t tx_ltb_dma; + dma_addr_t tx_ltb_dma[IBMVETH_MAX_QUEUES]; dma_addr_t buffer_list_dma; dma_addr_t filter_list_dma; struct ibmveth_buff_pool rx_buff_pool[IBMVETH_NUM_BUFF_POOLS]; |