page pool infra does direct recycling aggressively.
This would often keep ptr_ring left unused. Save
memory by configuring ptr_ring to a constant value(2K).
Please find discussion at
https://lore.kernel.org/netdev/
15d32b22-22b0-64e3-a49e-88d780c24616@kernel.org/T/
Fixes: b2e3406a38f0 ("octeontx2-pf: Add support for page pool")
Suggested-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>
---
drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
index 77c8f650f7ac..123348a9e19e 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
@@ -1432,7 +1432,8 @@ int otx2_pool_init(struct otx2_nic *pfvf, u16 pool_id,
}
pp_params.flags = PP_FLAG_PAGE_FRAG | PP_FLAG_DMA_MAP;
- pp_params.pool_size = numptrs;
+#define OTX2_PAGE_POOL_SZ 2048
+ pp_params.pool_size = OTX2_PAGE_POOL_SZ;
pp_params.nid = NUMA_NO_NODE;
pp_params.dev = pfvf->dev;
pp_params.dma_dir = DMA_FROM_DEVICE;
--
2.25.1