From a6e4bc5304033e434fabccabb230b8e9ff55d76f Mon Sep 17 00:00:00 2001 From: Wolfgang Grandegger Date: Thu, 8 Oct 2009 22:17:11 +0000 Subject: can: make the number of echo skb's configurable This patch allows the CAN controller driver to define the number of echo skb's used for the local loopback (echo), as suggested by Kurt Van Dijck, with the function: struct net_device *alloc_candev(int sizeof_priv, unsigned int echo_skb_max); The CAN drivers have been adapted accordingly. For the ems_usb driver, as suggested by Sebastian Haas, the number of echo skb's has been increased to 10, which improves the transmission performance a lot. Signed-off-by: Wolfgang Grandegger Signed-off-by: Kurt Van Dijck Signed-off-by: David S. Miller --- drivers/net/can/ti_hecc.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'drivers/net/can/ti_hecc.c') diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c index 814e6c5c6386..23a7128e4eb7 100644 --- a/drivers/net/can/ti_hecc.c +++ b/drivers/net/can/ti_hecc.c @@ -74,10 +74,6 @@ MODULE_VERSION(HECC_MODULE_VERSION); #define HECC_MB_TX_SHIFT 2 /* as per table above */ #define HECC_MAX_TX_MBOX BIT(HECC_MB_TX_SHIFT) -#if (HECC_MAX_TX_MBOX > CAN_ECHO_SKB_MAX) -#error "HECC: MAX TX mailboxes should be equal or less than CAN_ECHO_SKB_MAX" -#endif - #define HECC_TX_PRIO_SHIFT (HECC_MB_TX_SHIFT) #define HECC_TX_PRIO_MASK (MAX_TX_PRIO << HECC_MB_TX_SHIFT) #define HECC_TX_MB_MASK (HECC_MAX_TX_MBOX - 1) @@ -902,7 +898,7 @@ static int ti_hecc_probe(struct platform_device *pdev) goto probe_exit_free_region; } - ndev = alloc_candev(sizeof(struct ti_hecc_priv)); + ndev = alloc_candev(sizeof(struct ti_hecc_priv), HECC_MAX_TX_MBOX); if (!ndev) { dev_err(&pdev->dev, "alloc_candev failed\n"); err = -ENOMEM; -- cgit v1.2.2