From: Ramkrishna Vepa <ram.vepa@neterion.com>
To: jeff@garzik.org, santosh.rastapur@neterion.com
Cc: netdev@vger.kernel.org
Subject: [PATCH 2/2] S2IO: Save/Restore unused buffer mappings in 2/3 buffer mode
Date: 06 Mar 2007 17:01:00 -0800 [thread overview]
Message-ID: <1173229260.5431.41.camel@flash> (raw)
- Save/Restore unused buffer mappings in 2/3 buffer mode to avoid
frequent mapping
- Save/Restore adapter reset count during adapter reset
(Resending; forgot to cc netdev)
Signed-off-by: Santosh Rastapur <santosh.rastapur@neterion.com>
---
diff -Nurp patch1/drivers/net/s2io.c patch2/drivers/net/s2io.c
--- patch1/drivers/net/s2io.c 2007-03-06 03:29:18.000000000 -0800
+++ patch2/drivers/net/s2io.c 2007-03-06 04:00:41.000000000 -0800
@@ -84,7 +84,7 @@
#include "s2io.h"
#include "s2io-regs.h"
-#define DRV_VERSION "2.0.17.1"
+#define DRV_VERSION "2.0.19.1"
/* S2io Driver name & version. */
static char s2io_driver_name[] = "Neterion";
@@ -2242,6 +2242,7 @@ static int fill_rx_buffers(struct s2io_n
struct buffAdd *ba;
unsigned long flags;
struct RxD_t *first_rxdp = NULL;
+ u64 Buffer0_ptr = 0, Buffer1_ptr = 0;
mac_control = &nic->mac_control;
config = &nic->config;
@@ -2342,7 +2343,14 @@ static int fill_rx_buffers(struct s2io_n
* payload
*/
+ /* save the buffer pointers to avoid frequent dma mapping */
+ Buffer0_ptr = ((struct RxD3*)rxdp)->Buffer0_ptr;
+ Buffer1_ptr = ((struct RxD3*)rxdp)->Buffer1_ptr;
memset(rxdp, 0, sizeof(struct RxD3));
+ /* restore the buffer pointers for dma sync*/
+ ((struct RxD3*)rxdp)->Buffer0_ptr = Buffer0_ptr;
+ ((struct RxD3*)rxdp)->Buffer1_ptr = Buffer1_ptr;
+
ba = &mac_control->rings[ring_no].ba[block_no][off];
skb_reserve(skb, BUF0_LEN);
tmp = (u64)(unsigned long) skb->data;
@@ -3307,6 +3315,7 @@ static void s2io_reset(struct s2io_nic *
u16 subid, pci_cmd;
int i;
u16 val16;
+ unsigned long long reset_cnt = 0;
DBG_PRINT(INIT_DBG,"%s - Resetting XFrame card %s\n",
__FUNCTION__, sp->dev->name);
@@ -3372,6 +3381,11 @@ new_way:
/* Reset device statistics maintained by OS */
memset(&sp->stats, 0, sizeof (struct net_device_stats));
+ /* save reset count */
+ reset_cnt = sp->mac_control.stats_info->sw_stat.soft_reset_cnt;
+ memset(sp->mac_control.stats_info, 0, sizeof(struct stat_block));
+ /* restore reset count */
+ sp->mac_control.stats_info->sw_stat.soft_reset_cnt = reset_cnt;
/* SXE-002: Configure link and activity LED to turn it off */
subid = sp->pdev->subsystem_device;
@@ -4279,9 +4293,7 @@ static void s2io_updt_stats(struct s2io_
if (cnt == 5)
break; /* Updt failed */
} while(1);
- } else {
- memset(sp->mac_control.stats_info, 0, sizeof(struct stat_block));
- }
+ }
}
/**
reply other threads:[~2007-03-07 1:09 UTC|newest]
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