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Message-ID: <20111123211302.2a37debb@kryten> Date: Wed, 23 Nov 2011 21:13:02 +1100 From: Anton Blanchard <anton@...ba.org> To: cascardo@...ux.vnet.ibm.com Cc: netdev@...r.kernel.org Subject: [PATCH 1/2] ehea: Reduce memory usage in buffer pools Now that we enable multiqueue by default the ehea driver is using quite a lot of memory for its buffer pools. With 4 queues we consume 64MB in the jumbo packet ring, 16MB in the medium packet ring and 16MB in the tiny packet ring. We should only fill the jumbo ring once the MTU is increased but for now halve it's size so it consumes 32MB. Also reduce the tiny packet ring, with 4 queues we had 16k entries which is overkill. Signed-off-by: Anton Blanchard <anton@...ba.org> --- Index: linux-build/drivers/net/ethernet/ibm/ehea/ehea.h =================================================================== --- linux-build.orig/drivers/net/ethernet/ibm/ehea/ehea.h 2011-11-15 11:35:21.703449412 +1100 +++ linux-build/drivers/net/ethernet/ibm/ehea/ehea.h 2011-11-15 11:48:56.461767694 +1100 @@ -61,9 +61,9 @@ #ifdef EHEA_SMALL_QUEUES #define EHEA_MAX_CQE_COUNT 1023 #define EHEA_DEF_ENTRIES_SQ 1023 -#define EHEA_DEF_ENTRIES_RQ1 4095 +#define EHEA_DEF_ENTRIES_RQ1 1023 #define EHEA_DEF_ENTRIES_RQ2 1023 -#define EHEA_DEF_ENTRIES_RQ3 1023 +#define EHEA_DEF_ENTRIES_RQ3 511 #else #define EHEA_MAX_CQE_COUNT 4080 #define EHEA_DEF_ENTRIES_SQ 4080 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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