diff mbox series

[v8,net-next,06/15] net: mvpp2: increase BM pool and RXQ size

Message ID 1612629961-11583-7-git-send-email-stefanc@marvell.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series net: mvpp2: Add TX Flow Control support | expand

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netdev/source_inline success Was 0 now: 0
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netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 5 this patch: 5
netdev/kdoc success Errors and warnings before: 0 this patch: 0
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netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 20 lines checked
netdev/build_allmodconfig_warn success Errors and warnings before: 5 this patch: 5
netdev/header_inline success Link
netdev/stable success Stable not CCed

Commit Message

Stefan Chulski Feb. 6, 2021, 4:45 p.m. UTC 
From: Stefan Chulski <stefanc@marvell.com>

BM pool and RXQ size increased to support Firmware Flow Control.
Minimum depletion thresholds to support FC are 1024 buffers.
BM pool size increased to 2048 to have some 1024 buffers
space between depletion thresholds and BM pool size.

Jumbo frames require a 9888B buffer, so memory requirements
for data buffers increased from 7MB to 24MB.

Signed-off-by: Stefan Chulski <stefanc@marvell.com>
---
 drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2.h b/drivers/net/ethernet/marvell/mvpp2/mvpp2.h
index 89b3ede..cac9885 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2.h
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2.h
@@ -715,8 +715,8 @@ 
 #define MVPP2_PORT_MAX_RXQ		32
 
 /* Max number of Rx descriptors */
-#define MVPP2_MAX_RXD_MAX		1024
-#define MVPP2_MAX_RXD_DFLT		128
+#define MVPP2_MAX_RXD_MAX		2048
+#define MVPP2_MAX_RXD_DFLT		1024
 
 /* Max number of Tx descriptors */
 #define MVPP2_MAX_TXD_MAX		2048
@@ -851,8 +851,8 @@  enum mvpp22_ptp_packet_format {
 #define MVPP22_PTP_TIMESTAMPQUEUESELECT	BIT(18)
 
 /* BM constants */
-#define MVPP2_BM_JUMBO_BUF_NUM		512
-#define MVPP2_BM_LONG_BUF_NUM		1024
+#define MVPP2_BM_JUMBO_BUF_NUM		2048
+#define MVPP2_BM_LONG_BUF_NUM		2048
 #define MVPP2_BM_SHORT_BUF_NUM		2048
 #define MVPP2_BM_POOL_SIZE_MAX		(16*1024 - MVPP2_BM_POOL_PTR_ALIGN/4)
 #define MVPP2_BM_POOL_PTR_ALIGN		128