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| author | Vasanthy Kolluri <vkolluri@cisco.com> | 2010-06-24 10:51:51 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-06-25 20:50:24 -0700 |
| commit | b5bab85c15ed3d1ae7f917a7c077086ac6c04572 (patch) | |
| tree | e7a259fc15178a546cd9e4d0757ec040b4209bc6 /drivers/net/enic/vnic_wq.h | |
| parent | 70feadf36df94dc0dc2f32fec4c131ecd75344f2 (diff) | |
| download | op-kernel-dev-b5bab85c15ed3d1ae7f917a7c077086ac6c04572.zip op-kernel-dev-b5bab85c15ed3d1ae7f917a7c077086ac6c04572.tar.gz | |
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_wq.h')
| -rw-r--r-- | drivers/net/enic/vnic_wq.h | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/net/enic/vnic_wq.h b/drivers/net/enic/vnic_wq.h index 9c34d41..1c82139 100644 --- a/drivers/net/enic/vnic_wq.h +++ b/drivers/net/enic/vnic_wq.h @@ -60,12 +60,16 @@ struct vnic_wq_buf { void *desc; }; -/* Break the vnic_wq_buf allocations into blocks of 64 entries */ -#define VNIC_WQ_BUF_BLK_ENTRIES 64 -#define VNIC_WQ_BUF_BLK_SZ \ - (VNIC_WQ_BUF_BLK_ENTRIES * sizeof(struct vnic_wq_buf)) +/* Break the vnic_wq_buf allocations into blocks of 32/64 entries */ +#define VNIC_WQ_BUF_MIN_BLK_ENTRIES 32 +#define VNIC_WQ_BUF_DFLT_BLK_ENTRIES 64 +#define VNIC_WQ_BUF_BLK_ENTRIES(entries) \ + ((unsigned int)((entries < VNIC_WQ_BUF_DFLT_BLK_ENTRIES) ? \ + VNIC_WQ_BUF_MIN_BLK_ENTRIES : VNIC_WQ_BUF_DFLT_BLK_ENTRIES)) +#define VNIC_WQ_BUF_BLK_SZ(entries) \ + (VNIC_WQ_BUF_BLK_ENTRIES(entries) * sizeof(struct vnic_wq_buf)) #define VNIC_WQ_BUF_BLKS_NEEDED(entries) \ - DIV_ROUND_UP(entries, VNIC_WQ_BUF_BLK_ENTRIES) + DIV_ROUND_UP(entries, VNIC_WQ_BUF_BLK_ENTRIES(entries)) #define VNIC_WQ_BUF_BLKS_MAX VNIC_WQ_BUF_BLKS_NEEDED(4096) struct vnic_wq { |
