diff options
| author | Vasanthy Kolluri | 2010-06-24 12:51:51 +0200 |
|---|---|---|
| committer | David S. Miller | 2010-06-26 05:50:24 +0200 |
| commit | b5bab85c15ed3d1ae7f917a7c077086ac6c04572 (patch) | |
| tree | e7a259fc15178a546cd9e4d0757ec040b4209bc6 /drivers/net/enic/vnic_rq.h | |
| parent | enic: Add new firmware devcmds (diff) | |
| download | kernel-qcow2-linux-b5bab85c15ed3d1ae7f917a7c077086ac6c04572.tar.gz kernel-qcow2-linux-b5bab85c15ed3d1ae7f917a7c077086ac6c04572.tar.xz kernel-qcow2-linux-b5bab85c15ed3d1ae7f917a7c077086ac6c04572.zip | |
enic: Use receive queue buffer blocks of 32/64 entries
Change the receive queue buffer allocations into blocks of 32 entries when
ring size is less than 64, otherwise use 64 entries per block.
Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/enic/vnic_rq.h')
| -rw-r--r-- | drivers/net/enic/vnic_rq.h | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/net/enic/vnic_rq.h b/drivers/net/enic/vnic_rq.h index 35e736cc2d88..8f0fb78f0cdf 100644 --- a/drivers/net/enic/vnic_rq.h +++ b/drivers/net/enic/vnic_rq.h @@ -52,12 +52,16 @@ struct vnic_rq_ctrl { u32 pad10; }; -/* Break the vnic_rq_buf allocations into blocks of 64 entries */ -#define VNIC_RQ_BUF_BLK_ENTRIES 64 -#define VNIC_RQ_BUF_BLK_SZ \ - (VNIC_RQ_BUF_BLK_ENTRIES * sizeof(struct vnic_rq_buf)) +/* Break the vnic_rq_buf allocations into blocks of 32/64 entries */ +#define VNIC_RQ_BUF_MIN_BLK_ENTRIES 32 +#define VNIC_RQ_BUF_DFLT_BLK_ENTRIES 64 +#define VNIC_RQ_BUF_BLK_ENTRIES(entries) \ + ((unsigned int)((entries < VNIC_RQ_BUF_DFLT_BLK_ENTRIES) ? \ + VNIC_RQ_BUF_MIN_BLK_ENTRIES : VNIC_RQ_BUF_DFLT_BLK_ENTRIES)) +#define VNIC_RQ_BUF_BLK_SZ(entries) \ + (VNIC_RQ_BUF_BLK_ENTRIES(entries) * sizeof(struct vnic_rq_buf)) #define VNIC_RQ_BUF_BLKS_NEEDED(entries) \ - DIV_ROUND_UP(entries, VNIC_RQ_BUF_BLK_ENTRIES) + DIV_ROUND_UP(entries, VNIC_RQ_BUF_BLK_ENTRIES(entries)) #define VNIC_RQ_BUF_BLKS_MAX VNIC_RQ_BUF_BLKS_NEEDED(4096) struct vnic_rq_buf { |