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Date: Fri, 16 Feb 2007 01:42:27 -0800 From: akpm@...ux-foundation.org To: davem@...emloft.net Cc: netdev@...r.kernel.org, akpm@...ux-foundation.org, jmorrow@...rrow.org, jeff@...zik.org, jmorrow@...sspec.com Subject: [patch 2/2] bugfixes and new hardware support for arcnet driver From: Jeff Morrow <jmorrow@...rrow.org> The modifications and bug fixes noted below were done by Realtime Control Works and Contemporary Control Systems, Inc, Jan 2005. They were incorporated into the 2.6 kernel by Jeff Morrow of Sierra Analytics, Feb 2007. <jmorrow@...sspec.com> The changes have been tested on a Contemporary Controls PCI20U-4000. Summary of changes: Arc-rawmode.c: rx(): - Fixed error in received packet lengths; 256 byte packets were being received as 257 bytes packets. prepare_tx(): - Fixed error in transmit length calcs; 257 byte packets were being transmitted as 260 byte packets. com20020.c: com20020_check(): - We now load the SETUP2 register if the 'clockm' parameter is non-zero, instead of checking for ARC_CAN_10MBIT. The user is now responsible for whether or not SETUP2 is loaded. If the clock multiplier is non-zero, this means that the user wants a baud rate greater than 2.5Mbps. This is not possible unless the SETUP2 register is present (COM20020D, or COM20022). So, we're relying on the user to be smart about what kind of chip he's dealing with... com20020-pci.c - Added several entries to com20020pci_id_table[]. Signed-off-by: Jeff Morrow <jmorrow@...sspec.com> Cc: "David S. Miller" <davem@...emloft.net> Cc: Jeff Garzik <jeff@...zik.org> Signed-off-by: Andrew Morton <akpm@...ux-foundation.org> --- drivers/net/arcnet/arc-rawmode.c | 4 ++-- drivers/net/arcnet/arcnet.c | 2 +- drivers/net/arcnet/com20020-pci.c | 3 +++ drivers/net/arcnet/com20020.c | 2 +- 4 files changed, 7 insertions(+), 4 deletions(-) diff -puN drivers/net/arcnet/arcnet.c~bugfixes-and-new-hardware-support-for-arcnet-driver drivers/net/arcnet/arcnet.c --- a/drivers/net/arcnet/arcnet.c~bugfixes-and-new-hardware-support-for-arcnet-driver +++ a/drivers/net/arcnet/arcnet.c @@ -41,7 +41,7 @@ * <jojo@...as.de> */ -#define VERSION "arcnet: v3.93 BETA 2000/04/29 - by Avery Pennarun et al.\n" +#define VERSION "arcnet: v3.94 BETA 2007/02/08 - by Avery Pennarun et al.\n" #include <linux/module.h> #include <linux/types.h> diff -puN drivers/net/arcnet/arc-rawmode.c~bugfixes-and-new-hardware-support-for-arcnet-driver drivers/net/arcnet/arc-rawmode.c --- a/drivers/net/arcnet/arc-rawmode.c~bugfixes-and-new-hardware-support-for-arcnet-driver +++ a/drivers/net/arcnet/arc-rawmode.c @@ -94,7 +94,7 @@ static void rx(struct net_device *dev, i BUGMSG(D_DURING, "it's a raw packet (length=%d)\n", length); - if (length >= MinTU) + if (length > MTU) ofs = 512 - length; else ofs = 256 - length; @@ -183,7 +183,7 @@ static int prepare_tx(struct net_device length, XMTU); length = XMTU; } - if (length > MinTU) { + if (length >= MinTU) { hard->offset[0] = 0; hard->offset[1] = ofs = 512 - length; } else if (length > MTU) { diff -puN drivers/net/arcnet/com20020.c~bugfixes-and-new-hardware-support-for-arcnet-driver drivers/net/arcnet/com20020.c --- a/drivers/net/arcnet/com20020.c~bugfixes-and-new-hardware-support-for-arcnet-driver +++ a/drivers/net/arcnet/com20020.c @@ -104,7 +104,7 @@ int com20020_check(struct net_device *de SET_SUBADR(SUB_SETUP1); outb(lp->setup, _XREG); - if (lp->card_flags & ARC_CAN_10MBIT) + if (lp->clockm != 0) { SET_SUBADR(SUB_SETUP2); outb(lp->setup2, _XREG); diff -puN drivers/net/arcnet/com20020-pci.c~bugfixes-and-new-hardware-support-for-arcnet-driver drivers/net/arcnet/com20020-pci.c --- a/drivers/net/arcnet/com20020-pci.c~bugfixes-and-new-hardware-support-for-arcnet-driver +++ a/drivers/net/arcnet/com20020-pci.c @@ -155,6 +155,7 @@ static struct pci_device_id com20020pci_ { 0x1571, 0xa00b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT }, { 0x1571, 0xa00c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT }, { 0x1571, 0xa00d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT }, + { 0x1571, 0xa00e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT }, { 0x1571, 0xa201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT }, { 0x1571, 0xa202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT }, { 0x1571, 0xa203, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT }, @@ -163,6 +164,8 @@ static struct pci_device_id com20020pci_ { 0x1571, 0xa206, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT }, { 0x10B5, 0x9030, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT }, { 0x10B5, 0x9050, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT }, + { 0x14BA, 0x6000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT }, + { 0x10B5, 0x2200, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT }, {0,} }; _ - 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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