* [PATCH 4/5] net: sh_eth: add CONFIG_SH_ETH_NUM_RXDESC option
@ 2012-03-16 8:46 Shimoda, Yoshihiro
2012-03-16 9:11 ` David Miller
0 siblings, 1 reply; 3+ messages in thread
From: Shimoda, Yoshihiro @ 2012-03-16 8:46 UTC (permalink / raw)
To: netdev; +Cc: SH-Linux
This patch allows you to configure the number of RX descriptors.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
---
drivers/net/ethernet/renesas/Kconfig | 8 ++++++++
drivers/net/ethernet/renesas/sh_eth.h | 2 +-
2 files changed, 9 insertions(+), 1 deletions(-)
diff --git a/drivers/net/ethernet/renesas/Kconfig b/drivers/net/ethernet/renesas/Kconfig
index 9755b49..32c093b 100644
--- a/drivers/net/ethernet/renesas/Kconfig
+++ b/drivers/net/ethernet/renesas/Kconfig
@@ -17,3 +17,11 @@ config SH_ETH
Renesas SuperH Ethernet device driver.
This driver supporting CPUs are:
- SH7710, SH7712, SH7763, SH7619, SH7724, and SH7757.
+
+config SH_ETH_NUM_RXDESC
+ int "Number of RX descriptor"
+ depends on SH_ETH
+ default "64"
+ ---help---
+ If you want to need more RX descriptors, you can configure
+ the number of RX descriptors by this option.
diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h
index 9ab3f8b..667bdd2 100644
--- a/drivers/net/ethernet/renesas/sh_eth.h
+++ b/drivers/net/ethernet/renesas/sh_eth.h
@@ -26,7 +26,7 @@
#define CARDNAME "sh-eth"
#define TX_TIMEOUT (5*HZ)
#define TX_RING_SIZE 64 /* Tx ring size */
-#define RX_RING_SIZE 64 /* Rx ring size */
+#define RX_RING_SIZE CONFIG_SH_ETH_NUM_RXDESC /* Rx ring size */
#define ETHERSMALL 60
#define PKT_BUF_SZ 1538
#define SH_ETH_TSU_TIMEOUT_MS 500
--
1.7.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH 4/5] net: sh_eth: add CONFIG_SH_ETH_NUM_RXDESC option
2012-03-16 8:46 [PATCH 4/5] net: sh_eth: add CONFIG_SH_ETH_NUM_RXDESC option Shimoda, Yoshihiro
@ 2012-03-16 9:11 ` David Miller
2012-03-16 10:26 ` Shimoda, Yoshihiro
0 siblings, 1 reply; 3+ messages in thread
From: David Miller @ 2012-03-16 9:11 UTC (permalink / raw)
To: yoshihiro.shimoda.uh; +Cc: netdev, linux-sh
From: "Shimoda, Yoshihiro" <yoshihiro.shimoda.uh@renesas.com>
Date: Fri, 16 Mar 2012 17:46:16 +0900
> This patch allows you to configure the number of RX descriptors.
>
> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Never decide such things at compile time, use ethtool at runtime
for this.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH 4/5] net: sh_eth: add CONFIG_SH_ETH_NUM_RXDESC option
2012-03-16 9:11 ` David Miller
@ 2012-03-16 10:26 ` Shimoda, Yoshihiro
0 siblings, 0 replies; 3+ messages in thread
From: Shimoda, Yoshihiro @ 2012-03-16 10:26 UTC (permalink / raw)
To: David Miller; +Cc: netdev, linux-sh
2012/03/16 18:11, David Miller wrote:
> From: "Shimoda, Yoshihiro" <yoshihiro.shimoda.uh@renesas.com>
> Date: Fri, 16 Mar 2012 17:46:16 +0900
>
>> This patch allows you to configure the number of RX descriptors.
>>
>> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
>
> Never decide such things at compile time, use ethtool at runtime
> for this.
>
Thank you for the review. I will fix this.
Best regards,
Yoshihiro Shimoda
^ permalink raw reply [flat|nested] 3+ messages in thread
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2012-03-16 8:46 [PATCH 4/5] net: sh_eth: add CONFIG_SH_ETH_NUM_RXDESC option Shimoda, Yoshihiro
2012-03-16 9:11 ` David Miller
2012-03-16 10:26 ` Shimoda, Yoshihiro
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