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linux/debian/patches/features/arm/ixp4xx-0.2.1-driver.patch

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diff --git a/Documentation/networking/ixp4xx/IxNpeMicrocode.h b/Documentation/networking/ixp4xx/IxNpeMicrocode.h
new file mode 100644
index 0000000..a85f326
Index: linux-2.6.18/Documentation/networking/ixp4xx/IxNpeMicrocode.h
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.18/Documentation/networking/ixp4xx/IxNpeMicrocode.h 2006-10-17 05:26:01.000000000 -0700
@@ -0,0 +1,149 @@
+/*
+ * IxNpeMicrocode.h - Headerfile for compiling the Intel microcode C file
+ *
+ * Copyright (C) 2006 Christian Hohnstaedt <chohnstaedt@innominate.com>
+ *
+ * This file is released under the GPLv2
+ *
+ *
+ * compile with
+ *
+ * gcc -Wall IxNpeMicrocode.c -o IxNpeMicrocode
+ *
+ * Executing the resulting binary on your build-host creates the
+ * "NPE-[ABC].xxxxxxxx" files containing the selected microcode
+ * The options -le and -be controll the output format of the microcode
+ * the default is -be independent of the host endianess
+ *
+ * The download functions in the driver are smart enough to discover
+ * and correct firmware with wrong endianess
+ *
+ * fetch the IxNpeMicrocode.c from the Intel Access Library.
+ * It will include this header.
+ *
+ * select Images for every NPE from the following
+ * (used C++ comments for easy uncommenting ....)
+ */
+
+// #define IX_NPEDL_NPEIMAGE_NPEA_ETH_SPAN_MASK_FIREWALL_VLAN_QOS_HDR_CONV_EXTMIB
+// #define IX_NPEDL_NPEIMAGE_NPEA_ETH_SPAN_VLAN_QOS_HDR_CONV_EXTMIB
+// #define IX_NPEDL_NPEIMAGE_NPEA_ETH_LEARN_FILTER_SPAN_MASK_FIREWALL_VLAN_QOS_EXTMIB
+// #define IX_NPEDL_NPEIMAGE_NPEA_HSS_TSLOT_SWITCH
+// #define IX_NPEDL_NPEIMAGE_NPEA_ETH_SPAN_FIREWALL_VLAN_QOS_HDR_CONV
+// #define IX_NPEDL_NPEIMAGE_NPEA_ETH_LEARN_FILTER_SPAN_FIREWALL_VLAN_QOS
+// #define IX_NPEDL_NPEIMAGE_NPEA_ETH_LEARN_FILTER_SPAN_FIREWALL
+// #define IX_NPEDL_NPEIMAGE_NPEA_HSS_2_PORT
+// #define IX_NPEDL_NPEIMAGE_NPEA_DMA
+// #define IX_NPEDL_NPEIMAGE_NPEA_ATM_MPHY_12_PORT
+// #define IX_NPEDL_NPEIMAGE_NPEA_HSS0_ATM_MPHY_1_PORT
+// #define IX_NPEDL_NPEIMAGE_NPEA_HSS0_ATM_SPHY_1_PORT
+// #define IX_NPEDL_NPEIMAGE_NPEA_HSS0
+// #define IX_NPEDL_NPEIMAGE_NPEA_WEP
+
+
+// #define IX_NPEDL_NPEIMAGE_NPEB_ETH_SPAN_MASK_FIREWALL_VLAN_QOS_HDR_CONV_EXTMIB
+// #define IX_NPEDL_NPEIMAGE_NPEB_ETH_SPAN_VLAN_QOS_HDR_CONV_EXTMIB
+// #define IX_NPEDL_NPEIMAGE_NPEB_ETH_LEARN_FILTER_SPAN_MASK_FIREWALL_VLAN_QOS_EXTMIB
+// #define IX_NPEDL_NPEIMAGE_NPEB_DMA
+// #define IX_NPEDL_NPEIMAGE_NPEB_ETH_SPAN_FIREWALL_VLAN_QOS_HDR_CONV
+// #define IX_NPEDL_NPEIMAGE_NPEB_ETH_LEARN_FILTER_SPAN_FIREWALL_VLAN_QOS
+#define IX_NPEDL_NPEIMAGE_NPEB_ETH_LEARN_FILTER_SPAN_FIREWALL
+
+
+// #define IX_NPEDL_NPEIMAGE_NPEC_ETH_SPAN_MASK_FIREWALL_VLAN_QOS_HDR_CONV_EXTMIB
+// #define IX_NPEDL_NPEIMAGE_NPEC_ETH_SPAN_VLAN_QOS_HDR_CONV_EXTMIB
+// #define IX_NPEDL_NPEIMAGE_NPEC_ETH_LEARN_FILTER_SPAN_MASK_FIREWALL_VLAN_QOS_EXTMIB
+// #define IX_NPEDL_NPEIMAGE_NPEC_DMA
+// #define IX_NPEDL_NPEIMAGE_NPEC_CRYPTO_AES_ETH_LEARN_FILTER_SPAN
+// #define IX_NPEDL_NPEIMAGE_NPEC_CRYPTO_AES_ETH_LEARN_FILTER_FIREWALL
+#define IX_NPEDL_NPEIMAGE_NPEC_CRYPTO_AES_CCM_ETH
+// #define IX_NPEDL_NPEIMAGE_NPEC_CRYPTO_ETH_LEARN_FILTER_SPAN_FIREWALL
+// #define IX_NPEDL_NPEIMAGE_NPEC_ETH_SPAN_FIREWALL_VLAN_QOS_HDR_CONV
+// #define IX_NPEDL_NPEIMAGE_NPEC_ETH_LEARN_FILTER_SPAN_FIREWALL_VLAN_QOS
+// #define IX_NPEDL_NPEIMAGE_NPEC_ETH_LEARN_FILTER_SPAN_FIREWALL
+
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <netinet/in.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <endian.h>
+#include <byteswap.h>
+#include <string.h>
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define to_le32(x) (x)
+#define to_be32(x) bswap_32(x)
+#else
+#define to_be32(x) (x)
+#define to_le32(x) bswap_32(x)
+#endif
+
+struct dl_image {
+ unsigned magic;
+ unsigned id;
+ unsigned size;
+ unsigned data[0];
+};
+
+const unsigned IxNpeMicrocode_array[];
+
+int main(int argc, char *argv[])
+{
+ struct dl_image *image = (struct dl_image *)IxNpeMicrocode_array;
+ int imgsiz, i, fd, cnt;
+ const unsigned *arrayptr = IxNpeMicrocode_array;
+ const char *names[] = { "IXP425", "IXP465", "unknown" };
+ int bigendian = 1;
+
+ if (argc > 1) {
+ if (!strcmp(argv[1], "-le"))
+ bigendian = 0;
+ else if (!strcmp(argv[1], "-be"))
+ bigendian = 1;
+ else {
+ printf("Usage: %s <-le|-be>\n", argv[0]);
+ return EXIT_FAILURE;
+ }
+ }
+ printf("Output format is %s endian\n", bigendian ? "big" : "little");
+
+ for (image = (struct dl_image *)arrayptr, cnt=0;
+ (image->id != 0xfeedf00d) && (image->magic == 0xfeedf00d);
+ image = (struct dl_image *)(arrayptr), cnt++)
+ {
+ unsigned char field[4];
+ imgsiz = image->size + 3;
+ *(unsigned*)field = to_be32(image->id);
+ char filename[40], slnk[10];
+
+ sprintf(filename, "NPE-%c.%08x", (field[0] & 0xf) + 'A',
+ image->id);
+ sprintf(slnk, "NPE-%c", (field[0] & 0xf) + 'A');
+ printf("Writing image: %s.NPE_%c Func: %2x Rev: %02x.%02x "
+ "Size: %5d to: '%s'\n",
+ names[field[0] >> 4], (field[0] & 0xf) + 'A',
+ field[1], field[2], field[3], imgsiz*4, filename);
+ fd = open(filename, O_CREAT | O_RDWR | O_TRUNC, 0644);
+ if (fd >= 0) {
+ for (i=0; i<imgsiz; i++) {
+ *(unsigned*)field = bigendian ?
+ to_be32(arrayptr[i]) :
+ to_le32(arrayptr[i]);
+ write(fd, field, sizeof(field));
+ }
+ close(fd);
+ unlink(slnk);
+ symlink(filename, slnk);
+ } else {
+ perror(filename);
+ }
+ arrayptr += imgsiz;
+ }
+ close(fd);
+ return 0;
+}
Index: linux-2.6.18/Documentation/networking/ixp4xx/README
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.18/Documentation/networking/ixp4xx/README 2006-10-17 05:26:01.000000000 -0700
@@ -0,0 +1,72 @@
+Informations about the Networking Driver using the IXP4XX CPU internal NPEs
+and Queue manager.
+
+If this driver is used, the IAL (Intel Access Library) must not be loaded.
+However, the IAL may be loaded, if this Modules are unloaded:
+ ixp4xx_npe.ko, ixp4xx_qmgr.ko ixp4xx_mac.ko
+
+This also means that HW crypto accelleration does NOT work when using this
+driver, unless I have finished my crypto driver for NPE-C
+
+
+Adoption to your custom board:
+------------------------------
+use "arch/arm/mach-ixp4xx/ixdp425-setup.c" as template:
+
+in "static struct mac_plat_info" adopt the entry "phy_id" to your needs
+(Ask your hardware designer about the PHY id)
+If in doubt, try the values from the ixdp425 board.
+
+The order of "&mac0" and "&mac1" in the "struct platform_device"
+determines which of them becomes eth0 and eth1.
+
+
+The Microcode:
+---------------
+
+The Download functions below are endianess independent.
+If the image comes in wrong endianess, it is swapped automatically.
+
+Solution 1)
+ Configure "CONFIG_HOTPLUG" and "CONFIG_FW_LOADER" and configure
+ IXP4XX_NPE as module.
+ The default hotplug script will load the Firmware from
+ /usr/lib/hotplug/firmware/NPE-[ABC]
+ see Documentation/firmware_class/hotplug-script
+
+ You should take care, that $ACTION is "add" and $SUBSYSTEM is "firmware"
+ to avoid unnessecary calls:
+ test $ACTION = "remove" -o $SUBSYSTEM != "firmware" && exit
+
+Solution 2)
+ create a char-dev: "mknod /dev/ixp4xx_ucode c 10 184".
+ If you are using "udev" or busybox "mdev", they will do this
+ for you automatically during module load.
+ cat the Microcode into it:
+ cat /usr/lib/hotplug/firmware/NPE-* > /dev/ixp4xx_ucode
+ This also works if the driver is linked to the kernel
+
+Having a mix of both (e.g. solution 1 for NPE-B and solution 2 for NPE-C)
+is perfectly ok and works.
+
+The state of the NPEs can be seen and changed at:
+/sys/bus/platform/devices/ixp4xx_npe.X/state
+
+
+Obtaining the Microcode:
+------------------------
+1) IxNpeMicrocode.h in this directory:
+ Download IPL_IXP400NPELIBRARYWITHCRYPTO-2_1.ZIP from Intel
+ It unpacks the Microcode IxNpeMicrocode.c
+ Read the Licence !
+ Read the top of IxNpeMicrocode.h for more details.
+ Compile it with "gcc -Wall IxNpeMicrocode.c -o IxNpeMicrocode" on your host.
+ The resulting images can be moved to "/usr/lib/hotplug/firmware"
+ The endianeess of the written microcode can be controlled by the
+ switches -le -be. Default is big-endian.
+
+2) mc_grab.c in this directory:
+ Compile and execute it either on the host or on the target
+ to grab the microcode from a binary image like the RedBoot bootloader.
+ (big-endian images only)
+
Index: linux-2.6.18/Documentation/networking/ixp4xx/mc_grab.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.18/Documentation/networking/ixp4xx/mc_grab.c 2006-10-17 05:26:01.000000000 -0700
@@ -0,0 +1,97 @@
+/*
+ * mc_grab.c - grabs IXP4XX microcode from a binary datastream
+ * e.g. The redboot bootloader....
+ *
+ * usage: mc_grab 1010200 2010200 < /dev/mtd/0 > /dev/misc/npe
+ *
+ * Copyright (C) 2006 Christian Hohnstaedt <chohnstaedt@innominate.com>
+ *
+ * This file is released under the GPLv2
+ */
+
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <netinet/in.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+
+#define MAX_IMG 6
+
+static void print_mc_info(unsigned id, int siz)
+{
+ unsigned char buf[sizeof(unsigned)];
+ *(unsigned*)buf = id;
+ unsigned idx;
+ const char *names[] = { "IXP425", "IXP465", "unknown" };
+
+ idx = (buf[0] >> 4) < 2 ? (buf[0] >> 4) : 2;
+
+ fprintf(stderr, "Device: %s:NPE_%c Func: %2x Rev: %02x.%02x "
+ "Size: %5d bytes ID:%08x\n", names[idx], (buf[0] & 0xf)+'A',
+ buf[1], buf[2], buf[3], siz*4, ntohl(id));
+}
+
+int main(int argc, char *argv[])
+{
+ int i,j;
+ unsigned char buf[sizeof(unsigned)];
+ unsigned magic = htonl(0xfeedf00d);
+ unsigned id, my_ids[MAX_IMG+1], siz, sizbe;
+ int ret=1, verbose=0;
+
+ for (i=0, j=0; i<argc-1 && j<MAX_IMG; i++) {
+ if (!strcmp(argv[i+1], "-v"))
+ verbose = 1;
+ else
+ my_ids[j++] = htonl(strtoul(argv[i+1], NULL, 16));
+ }
+ my_ids[j] = 0;
+ if (my_ids[0] == 0 && !verbose) {
+ fprintf(stderr, "Usage: %s <-v> [ID1] [ID2] [IDn]\n", argv[0]);
+ return 1;
+ }
+
+ while ((ret=read(0, buf, sizeof(unsigned))) == sizeof(unsigned)) {
+ if (*(unsigned*)buf != magic)
+ continue;
+ if ((ret=read(0, buf, sizeof(unsigned))) != sizeof(unsigned) )
+ break;
+ id = *(unsigned*)buf;
+
+ if (read(0, buf, sizeof(siz)) != sizeof(siz) )
+ break;
+ sizbe = *(unsigned*)buf;
+ siz = ntohl(sizbe);
+
+ if (verbose)
+ print_mc_info(id, siz);
+
+ for(i=0; my_ids[i]; i++)
+ if (id == my_ids[i])
+ break;
+ if (!my_ids[i])
+ continue;
+
+ if (!verbose)
+ print_mc_info(id, siz);
+
+ write(1, &magic, sizeof(magic));
+ write(1, &id, sizeof(id));
+ write(1, &sizbe, sizeof(sizbe));
+ for (i=0; i<siz; i++) {
+ if (read(0, buf, sizeof(unsigned)) != sizeof(unsigned))
+ break;
+ write(1, buf, sizeof(unsigned));
+ }
+ if (i != siz)
+ break;
+ }
+ if (ret)
+ fprintf(stderr, "Error reading Microcode\n");
+ return ret;
+}
Index: linux-2.6.18/arch/arm/mach-ixp4xx/common.c
===================================================================
--- linux-2.6.18.orig/arch/arm/mach-ixp4xx/common.c 2006-10-17 05:26:00.000000000 -0700
+++ linux-2.6.18/arch/arm/mach-ixp4xx/common.c 2006-10-17 05:26:01.000000000 -0700
@@ -13,6 +13,7 @@
* warranty of any kind, whether express or implied.
*/
+#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/init.h>
@@ -278,7 +279,7 @@
static struct irqaction ixp4xx_timer_irq = {
.name = "IXP4xx Timer Tick",
- .flags = IRQF_DISABLED | IRQF_TIMER,
+ .flags = IRQF_DISABLED | IRQF_TIMER,
.handler = ixp4xx_timer_interrupt,
};
@@ -330,6 +331,97 @@
&ixp46x_i2c_controller
};
+static struct npe_plat_data npea = {
+ .name = "NPE-A",
+ .data_size = 0x800,
+ .inst_size = 0x1000,
+ .id = 0,
+};
+
+static struct npe_plat_data npeb = {
+ .name = "NPE-B",
+ .data_size = 0x800,
+ .inst_size = 0x800,
+ .id = 1,
+};
+
+static struct npe_plat_data npec = {
+ .name = "NPE-C",
+ .data_size = 0x800,
+ .inst_size = 0x800,
+ .id = 2,
+};
+
+static struct resource res_npea = {
+ .start = IXP4XX_NPEA_BASE_PHYS,
+ .end = IXP4XX_NPEA_BASE_PHYS + 0xfff,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct resource res_npeb = {
+ .start = IXP4XX_NPEB_BASE_PHYS,
+ .end = IXP4XX_NPEB_BASE_PHYS + 0xfff,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct resource res_npec = {
+ .start = IXP4XX_NPEC_BASE_PHYS,
+ .end = IXP4XX_NPEC_BASE_PHYS + 0xfff,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct platform_device dev_npea = {
+ .name = "ixp4xx_npe",
+ .id = 0,
+ .dev.platform_data = &npea,
+ .num_resources = 1,
+ .resource = &res_npea,
+};
+
+static struct platform_device dev_npeb = {
+ .name = "ixp4xx_npe",
+ .id = 1,
+ .dev.platform_data = &npeb,
+ .num_resources = 1,
+ .resource = &res_npeb,
+};
+
+static struct platform_device dev_npec = {
+ .name = "ixp4xx_npe",
+ .id = 2,
+ .dev.platform_data = &npec,
+ .num_resources = 1,
+ .resource = &res_npec,
+};
+
+/* QMGR */
+static struct resource res_qmgr[] = {
+{
+ .start = IXP4XX_QMGR_BASE_PHYS,
+ .end = IXP4XX_QMGR_BASE_PHYS + IXP4XX_QMGR_REGION_SIZE -1,
+ .flags = IORESOURCE_MEM,
+}, {
+ .start = IRQ_IXP4XX_QM1,
+ .flags = IORESOURCE_IRQ,
+} };
+
+static struct platform_device qmgr = {
+ .name = "ixp4xx_qmgr",
+ .id = 0,
+ .dev = {
+ .coherent_dma_mask = DMA_32BIT_MASK,
+ },
+ .num_resources = ARRAY_SIZE(res_qmgr),
+ .resource = res_qmgr,
+};
+
+static struct platform_device *npes_qmgr[] __initdata = {
+ &qmgr,
+ &dev_npea,
+ &dev_npeb,
+ &dev_npec,
+};
+
unsigned long ixp4xx_exp_bus_size;
EXPORT_SYMBOL(ixp4xx_exp_bus_size);
@@ -349,7 +441,10 @@
break;
}
}
+ npeb.inst_size = 0x1000;
+ npec.inst_size = 0x1000;
}
+ platform_add_devices(npes_qmgr, ARRAY_SIZE(npes_qmgr));
printk("IXP4xx: Using %luMiB expansion bus window size\n",
ixp4xx_exp_bus_size >> 20);
Index: linux-2.6.18/arch/arm/mach-ixp4xx/ixdp425-setup.c
===================================================================
--- linux-2.6.18.orig/arch/arm/mach-ixp4xx/ixdp425-setup.c 2006-09-19 20:42:06.000000000 -0700
+++ linux-2.6.18/arch/arm/mach-ixp4xx/ixdp425-setup.c 2006-10-17 05:26:01.000000000 -0700
@@ -101,10 +101,57 @@
.resource = ixdp425_uart_resources
};
+/* MACs */
+static struct resource res_mac0 = {
+ .start = IXP4XX_EthB_BASE_PHYS,
+ .end = IXP4XX_EthB_BASE_PHYS + 0x1ff,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct resource res_mac1 = {
+ .start = IXP4XX_EthC_BASE_PHYS,
+ .end = IXP4XX_EthC_BASE_PHYS + 0x1ff,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct mac_plat_info plat_mac0 = {
+ .npe_id = 1,
+ .phy_id = 0,
+ .eth_id = 0,
+ .rxq_id = 27,
+ .txq_id = 24,
+};
+
+static struct mac_plat_info plat_mac1 = {
+ .npe_id = 2,
+ .phy_id = 1,
+ .eth_id = 1,
+ .rxq_id = 28,
+ .txq_id = 25,
+};
+
+static struct platform_device mac0 = {
+ .name = "ixp4xx_mac",
+ .id = 0,
+ .dev.platform_data = &plat_mac0,
+ .num_resources = 1,
+ .resource = &res_mac0,
+};
+
+static struct platform_device mac1 = {
+ .name = "ixp4xx_mac",
+ .id = 1,
+ .dev.platform_data = &plat_mac1,
+ .num_resources = 1,
+ .resource = &res_mac1,
+};
+
static struct platform_device *ixdp425_devices[] __initdata = {
&ixdp425_i2c_controller,
&ixdp425_flash,
- &ixdp425_uart
+ &ixdp425_uart,
+ &mac0,
+ &mac1,
};
static void __init ixdp425_init(void)
Index: linux-2.6.18/drivers/net/Kconfig
===================================================================
--- linux-2.6.18.orig/drivers/net/Kconfig 2006-09-19 20:42:06.000000000 -0700
+++ linux-2.6.18/drivers/net/Kconfig 2006-10-17 05:26:01.000000000 -0700
@@ -187,6 +187,8 @@
source "drivers/net/arm/Kconfig"
+source "drivers/net/ixp4xx/Kconfig"
+
config MACE
tristate "MACE (Power Mac ethernet) support"
depends on NET_ETHERNET && PPC_PMAC && PPC32
Index: linux-2.6.18/drivers/net/Makefile
===================================================================
--- linux-2.6.18.orig/drivers/net/Makefile 2006-09-19 20:42:06.000000000 -0700
+++ linux-2.6.18/drivers/net/Makefile 2006-10-17 05:26:01.000000000 -0700
@@ -214,6 +214,7 @@
obj-$(CONFIG_IRDA) += irda/
obj-$(CONFIG_ETRAX_ETHERNET) += cris/
obj-$(CONFIG_ENP2611_MSF_NET) += ixp2000/
+obj-$(CONFIG_IXP4XX_NPE) += ixp4xx/
obj-$(CONFIG_NETCONSOLE) += netconsole.o
Index: linux-2.6.18/drivers/net/ixp4xx/Kconfig
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.18/drivers/net/ixp4xx/Kconfig 2006-10-17 05:26:01.000000000 -0700
@@ -0,0 +1,40 @@
+config IXP4XX_QMGR
+ tristate "IXP4xx Queue Manager support"
+ depends on ARCH_IXP4XX
+ depends on NET_ETHERNET
+ help
+ The IXP4XX Queue manager is a configurable hardware ringbuffer.
+ It is used by the NPEs to exchange data from and to the CPU.
+ You can either use this OR the Intel Access Library (IAL)
+
+config IXP4XX_NPE
+ tristate "IXP4xx NPE support"
+ depends on ARCH_IXP4XX
+ depends on NET_ETHERNET
+ help
+ The IXP4XX NPE driver supports the 3 CPU co-processors called
+ "Network Processing Engines" (NPE). It adds support fo downloading
+ the Microcode (firmware) via Hotplug or character-special-device.
+ More about this at: Documentation/networking/ixp4xx/README.
+ You can either use this OR the Intel Access Library (IAL)
+
+config IXP4XX_FW_LOAD
+ bool "Use Firmware hotplug for Microcode download"
+ depends on IXP4XX_NPE
+ select HOTPLUG
+ select FW_LOADER
+ help
+ The default hotplug script will load the Firmware from
+ /usr/lib/hotplug/firmware/NPE-[ABC]
+ see Documentation/firmware_class/hotplug-script
+
+config IXP4XX_MAC
+ tristate "IXP4xx MAC support"
+ depends on IXP4XX_NPE
+ depends on IXP4XX_QMGR
+ depends on NET_ETHERNET
+ select MII
+ help
+ The IXP4XX MAC driver supports the MACs on the IXP4XX CPUs.
+ There are 2 on ixp425 and up to 5 on ixdp465.
+ You can either use this OR the Intel Access Library (IAL)
Index: linux-2.6.18/drivers/net/ixp4xx/Makefile
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.18/drivers/net/ixp4xx/Makefile 2006-10-17 05:26:01.000000000 -0700
@@ -0,0 +1,6 @@
+obj-$(CONFIG_IXP4XX_QMGR) += ixp4xx_qmgr.o
+obj-$(CONFIG_IXP4XX_NPE) += ixp4xx_npe.o
+obj-$(CONFIG_IXP4XX_MAC) += ixp4xx_mac.o
+
+ixp4xx_npe-objs := ucode_dl.o npe_mh.o
+ixp4xx_mac-objs := mac_driver.o qmgr_eth.o phy.o
Index: linux-2.6.18/drivers/net/ixp4xx/ixp4xx_qmgr.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.18/drivers/net/ixp4xx/ixp4xx_qmgr.c 2006-10-17 05:40:09.000000000 -0700
@@ -0,0 +1,390 @@
+/*
+ * qmgr.c - reimplementation of the queue configuration interface.
+ *
+ * Copyright (C) 2006 Christian Hohnstaedt <chohnstaedt@innominate.com>
+ *
+ * This file is released under the GPLv2
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/dmapool.h>
+#include <linux/interrupt.h>
+#include <linux/err.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+
+#include <linux/ixp_qmgr.h>
+#include <linux/ixp_npe.h>
+
+#define IXQMGR_VERSION "IXP4XX Q Manager 0.2.0"
+
+static struct device *qmgr_dev = NULL;
+
+int queue_len(struct qm_queue *queue)
+{
+ struct qm_qmgr *qmgr = dev_get_drvdata(queue->dev);
+ int diff, offs;
+ u32 val;
+
+ offs = queue->id/8 + QUE_LOW_STAT0;
+ val = *(qmgr->addr + IX_QMGR_QCFG_BASE + queue->id);
+
+ diff = (val - (val >> 7)) & 0x7f;
+ if (!diff) {
+ /* diff == 0 means either empty or full, must look at STAT0 */
+ if ((*(qmgr->addr + offs) >> ((queue->id % 8)*4)) & 0x04)
+ diff = queue->len;
+ }
+ return diff;
+}
+
+static int request_pool(struct device *dev, int count)
+{
+ int i;
+ struct npe_cont *cont;
+ struct qm_qmgr *qmgr = dev_get_drvdata(dev);
+ dma_addr_t handle;
+
+ for (i=0; i<count; i++) {
+ cont = dma_pool_alloc(qmgr->dmapool, GFP_KERNEL, &handle);
+ if (!cont) {
+ return -ENOMEM;
+ }
+ cont->phys = handle;
+ cont->virt = cont;
+ write_lock(&qmgr->lock);
+ cont->next = qmgr->pool;
+ qmgr->pool = cont;
+ write_unlock(&qmgr->lock);
+ }
+ return 0;
+}
+
+static int free_pool(struct device *dev, int count)
+{
+ int i;
+ struct npe_cont *cont;
+ struct qm_qmgr *qmgr = dev_get_drvdata(dev);
+
+ for (i=0; i<count; i++) {
+ write_lock(&qmgr->lock);
+ cont = qmgr->pool;
+ if (!cont) {
+ write_unlock(&qmgr->lock);
+ return -1;
+ }
+ qmgr->pool = cont->next;
+ write_unlock(&qmgr->lock);
+ dma_pool_free(qmgr->dmapool, cont, cont->phys);
+ }
+ return 0;
+}
+
+static int get_free_qspace(struct qm_qmgr *qmgr, int len)
+{
+ int words = (qmgr->res->end - qmgr->res->start + 1) / 4 -
+ IX_QMGR_SRAM_SPACE;
+ int i,q;
+
+ for (i=0; i<words; i+=len) {
+ for (q=0; q<MAX_QUEUES; q++) {
+ struct qm_queue *qu = qmgr->queues[q];
+ if (!qu)
+ continue;
+ if ((qu->addr + qu->len > i) && (qu->addr < i + len))
+ break;
+ }
+ if (q == MAX_QUEUES) {
+ /* we have a free address */
+ return i;
+ }
+ }
+ return -1;
+}
+
+static inline int log2(int x)
+{
+ int r=0;
+ while(x>>=1)
+ r++;
+ return r;
+}
+
+/*
+ * 32bit Config registers at IX_QMGR_QUECONFIG_BASE_OFFSET[Qid]
+ * 0 - 6 WRPTR Word offset to baseaddr (index 0 .. BSIZE-1)
+ * 7 -13 RDPTR ''
+ * 14 -21 BADDR baseaddr = (offset to IX_QMGR_QUEBUFFER_SPACE_OFFSET) >> 6
+ * 22 -23 ESIZE entrySizeInWords (always 00 because entrySizeInWords==1)
+ * 24 -25 BSIZE qSizeInWords 00=16,01=32,10=64,11=128
+ * 26 -28 NE nearly empty
+ * 29 -31 NF nearly full
+ */
+static int conf_q_regs(struct qm_queue *queue)
+{
+ int bsize = log2(queue->len/16);
+ int baddr = queue->addr + IX_QMGR_QCFG_SIZE;
+
+ /* +2, because baddr is in words and not in bytes */
+ queue_write_cfg_reg(queue, (bsize << 24) | (baddr<<(14-6+2)) );
+
+ return 0;
+}
+
+void queue_set_watermarks(struct qm_queue *queue, unsigned ne, unsigned nf)
+{
+ u32 val;
+ /* calculate the register values
+ * 0->0, 1->1, 2->2, 4->3, 8->4 16->5...*/
+ ne = log2(ne<<1) & 0x7;
+ nf = log2(nf<<1) & 0x7;
+
+ /* Mask out old watermarks */
+ val = queue_read_cfg_reg(queue) & ~0xfc000000;
+ queue_write_cfg_reg(queue, val | (ne << 26) | (nf << 29));
+}
+
+int queue_set_irq_src(struct qm_queue *queue, int flag)
+{
+ struct qm_qmgr *qmgr = dev_get_drvdata(queue->dev);
+ u32 reg;
+ int offs, bitoffs;
+
+ /* Q 0-7 are in REG0, 8-15 are in REG1, etc. They occupy 4 bits/Q */
+ offs = queue->id/8 + INT0_SRC_SELREG0;
+ bitoffs = (queue->id % 8)*4;
+
+ reg = *(qmgr->addr + offs) & ~(0xf << bitoffs);
+ *(qmgr->addr + offs) = reg | (flag << bitoffs);
+
+ return 0;
+}
+
+static irqreturn_t irq_qm1(int irq, void *dev_id, struct pt_regs *regs)
+{
+ struct qm_qmgr *qmgr = dev_id;
+ int offs, reg;
+ struct qm_queue *queue;
+
+ reg = *(qmgr->addr + QUE_INT_REG0);
+ while(reg) {
+ /*
+ * count leading zeros. "offs" gets
+ * the amount of leading 0 in "reg"
+ */
+ asm ("clz %0, %1;" : "=r"(offs) : "r"(reg));
+ offs = 31 - offs;
+ reg &= ~(1 << offs);
+ queue = qmgr->queues[offs];
+ if (likely(queue)) {
+ if (likely(queue->irq_cb)) {
+ queue->irq_cb(queue);
+ } else {
+ printk(KERN_ERR "Missing callback for Q %d\n",
+ offs);
+ }
+ } else {
+ printk(KERN_ERR "IRQ for unregistered Q %d\n", offs);
+ }
+ }
+ return IRQ_HANDLED;
+}
+
+struct qm_queue *request_queue(int qid, int len)
+{
+ int ram;
+ struct qm_qmgr *qmgr;
+ struct qm_queue *queue;
+
+ if (!qmgr_dev)
+ return ERR_PTR(-ENODEV);
+
+ if ((qid < 0) || (qid > MAX_QUEUES))
+ return ERR_PTR(-ERANGE);
+
+ switch (len) {
+ case 16:
+ case 32:
+ case 64:
+ case 128: break;
+ default : return ERR_PTR(-EINVAL);
+ }
+
+ qmgr = dev_get_drvdata(qmgr_dev);
+
+ if (qmgr->queues[qid]) {
+ /* not an error, just in use already */
+ return NULL;
+ }
+ if ((ram = get_free_qspace(qmgr, len)) < 0) {
+ printk(KERN_ERR "No free SRAM space for this queue\n");
+ return ERR_PTR(-ENOMEM);
+ }
+ if (!(queue = kzalloc(sizeof(struct qm_queue), GFP_KERNEL)))
+ return ERR_PTR(-ENOMEM);
+
+ if (!try_module_get(THIS_MODULE)) {
+ kfree(queue);
+ return ERR_PTR(-ENODEV);
+ }
+
+ queue->addr = ram;
+ queue->len = len;
+ queue->id = qid;
+ queue->dev = get_device(qmgr_dev);
+ queue->acc_reg = qmgr->addr + (4 * qid);
+ qmgr->queues[qid] = queue;
+ if (request_pool(qmgr_dev, len)) {
+ printk(KERN_ERR "Failed to request DMA pool of Q %d\n", qid);
+ }
+
+ conf_q_regs(queue);
+ return queue;
+}
+
+void release_queue(struct qm_queue *queue)
+{
+ struct qm_qmgr *qmgr = dev_get_drvdata(queue->dev);
+
+ BUG_ON(qmgr->queues[queue->id] != queue);
+ qmgr->queues[queue->id] = NULL;
+
+ if (free_pool(queue->dev, queue->len)) {
+ printk(KERN_ERR "Failed to release DMA pool of Q %d\n",
+ queue->id);
+ }
+ queue_disable_irq(queue);
+ queue_write_cfg_reg(queue, 0);
+
+ module_put(THIS_MODULE);
+ put_device(queue->dev);
+ kfree(queue);
+}
+
+static int qmgr_probe(struct platform_device *pdev)
+{
+ struct resource *res;
+ struct qm_qmgr *qmgr;
+ int size, ret=0, i;
+
+ if (!(res = platform_get_resource(pdev, IORESOURCE_MEM, 0)))
+ return -EIO;
+
+ if ((i = platform_get_irq(pdev, 0)) < 0)
+ return -EIO;
+
+ if (!(qmgr = kzalloc(sizeof(struct qm_qmgr), GFP_KERNEL)))
+ return -ENOMEM;
+
+ qmgr->irq = i;
+ size = res->end - res->start +1;
+ qmgr->res = request_mem_region(res->start, size, "ixp_qmgr");
+ if (!qmgr->res) {
+ ret = -EBUSY;
+ goto out_free;
+ }
+
+ qmgr->addr = ioremap(res->start, size);
+ if (!qmgr->addr) {
+ ret = -ENOMEM;
+ goto out_rel;
+ }
+
+ /* Reset Q registers */
+ for (i=0; i<4; i++)
+ *(qmgr->addr + QUE_LOW_STAT0 +i) = 0x33333333;
+ for (i=0; i<10; i++)
+ *(qmgr->addr + QUE_UO_STAT0 +i) = 0x0;
+ for (i=0; i<4; i++)
+ *(qmgr->addr + INT0_SRC_SELREG0 +i) = 0x0;
+ for (i=0; i<2; i++) {
+ *(qmgr->addr + QUE_IE_REG0 +i) = 0x00;
+ *(qmgr->addr + QUE_INT_REG0 +i) = 0xffffffff;
+ }
+ for (i=0; i<64; i++) {
+ *(qmgr->addr + IX_QMGR_QCFG_BASE + i) = 0x0;
+ }
+
+ ret = request_irq(qmgr->irq, irq_qm1, SA_SHIRQ | SA_INTERRUPT,
+ "qmgr", qmgr);
+ if (ret) {
+ printk(KERN_ERR "Failed to request IRQ(%d)\n", qmgr->irq);
+ ret = -EIO;
+ goto out_rel;
+ }
+
+ rwlock_init(&qmgr->lock);
+ qmgr->dmapool = dma_pool_create("qmgr", &pdev->dev,
+ sizeof(struct npe_cont), 32, 0);
+ platform_set_drvdata(pdev, qmgr);
+
+ qmgr_dev = &pdev->dev;
+
+ printk(KERN_INFO IXQMGR_VERSION " initialized.\n");
+
+ return 0;
+
+out_rel:
+ release_resource(qmgr->res);
+out_free:
+ kfree(qmgr);
+ return ret;
+}
+
+static int qmgr_remove(struct platform_device *pdev)
+{
+ struct qm_qmgr *qmgr = platform_get_drvdata(pdev);
+ int i;
+
+ for (i=0; i<MAX_QUEUES; i++) {
+ if (qmgr->queues[i]) {
+ printk(KERN_ERR "WARNING Unreleased Q: %d\n", i);
+ release_queue(qmgr->queues[i]);
+ }
+ }
+
+ synchronize_irq (qmgr->irq);
+ free_irq(qmgr->irq, qmgr);
+
+ dma_pool_destroy(qmgr->dmapool);
+ iounmap(qmgr->addr);
+ release_resource(qmgr->res);
+ platform_set_drvdata(pdev, NULL);
+ qmgr_dev = NULL;
+ kfree(qmgr);
+ return 0;
+}
+
+static struct platform_driver ixp4xx_qmgr = {
+ .driver.name = "ixp4xx_qmgr",
+ .probe = qmgr_probe,
+ .remove = qmgr_remove,
+};
+
+
+static int __init init_qmgr(void)
+{
+ return platform_driver_register(&ixp4xx_qmgr);
+}
+
+static void __exit finish_qmgr(void)
+{
+ platform_driver_unregister(&ixp4xx_qmgr);
+}
+
+module_init(init_qmgr);
+module_exit(finish_qmgr);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Christian Hohnstaedt <chohnstaedt@innominate.com>");
+
+EXPORT_SYMBOL(request_queue);
+EXPORT_SYMBOL(release_queue);
+EXPORT_SYMBOL(queue_set_irq_src);
+EXPORT_SYMBOL(queue_set_watermarks);
+EXPORT_SYMBOL(queue_len);
Index: linux-2.6.18/drivers/net/ixp4xx/mac.h
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.18/drivers/net/ixp4xx/mac.h 2006-10-17 05:26:01.000000000 -0700
@@ -0,0 +1,221 @@
+/*
+ * Copyright (C) 2002-2006 Christian Hohnstaedt <chohnstaedt@innominate.com>
+ *
+ * This file is released under the GPLv2
+ */
+
+#include <linux/resource.h>
+#include <linux/netdevice.h>
+#include <linux/io.h>
+#include <linux/mii.h>
+#include <linux/workqueue.h>
+#include <asm/hardware.h>
+#include <linux/ixp_qmgr.h>
+
+
+/* 32 bit offsets to be added to u32 *pointers */
+#define MAC_TX_CNTRL1 0x00 // 0x000
+#define MAC_TX_CNTRL2 0x01 // 0x004
+#define MAC_RX_CNTRL1 0x04 // 0x010
+#define MAC_RX_CNTRL2 0x05 // 0x014
+#define MAC_RANDOM_SEED 0x08 // 0x020
+#define MAC_THRESH_P_EMPTY 0x0c // 0x030
+#define MAC_THRESH_P_FULL 0x0e // 0x038
+#define MAC_BUF_SIZE_TX 0x10 // 0x040
+#define MAC_TX_DEFER 0x14 // 0x050
+#define MAC_RX_DEFER 0x15 // 0x054
+#define MAC_TX_TWO_DEFER_1 0x18 // 0x060
+#define MAC_TX_TWO_DEFER_2 0x19 // 0x064
+#define MAC_SLOT_TIME 0x1c // 0x070
+#define MAC_MDIO_CMD 0x20 // 0x080 4 registers 0x20 - 0x23
+#define MAC_MDIO_STS 0x24 // 0x090 4 registers 0x24 - 0x27
+#define MAC_ADDR_MASK 0x28 // 0x0A0 6 registers 0x28 - 0x2d
+#define MAC_ADDR 0x30 // 0x0C0 6 registers 0x30 - 0x35
+#define MAC_INT_CLK_THRESH 0x38 // 0x0E0 1 register
+#define MAC_UNI_ADDR 0x3c // 0x0F0 6 registers 0x3c - 0x41
+#define MAC_CORE_CNTRL 0x7f // 0x1fC
+
+/* TX Control Register 1*/
+
+#define TX_CNTRL1_TX_EN BIT(0)
+#define TX_CNTRL1_DUPLEX BIT(1)
+#define TX_CNTRL1_RETRY BIT(2)
+#define TX_CNTRL1_PAD_EN BIT(3)
+#define TX_CNTRL1_FCS_EN BIT(4)
+#define TX_CNTRL1_2DEFER BIT(5)
+#define TX_CNTRL1_RMII BIT(6)
+
+/* TX Control Register 2 */
+#define TX_CNTRL2_RETRIES_MASK 0xf
+
+/* RX Control Register 1 */
+#define RX_CNTRL1_RX_EN BIT(0)
+#define RX_CNTRL1_PADSTRIP_EN BIT(1)
+#define RX_CNTRL1_CRC_EN BIT(2)
+#define RX_CNTRL1_PAUSE_EN BIT(3)
+#define RX_CNTRL1_LOOP_EN BIT(4)
+#define RX_CNTRL1_ADDR_FLTR_EN BIT(5)
+#define RX_CNTRL1_RX_RUNT_EN BIT(6)
+#define RX_CNTRL1_BCAST_DIS BIT(7)
+
+/* RX Control Register 2 */
+#define RX_CNTRL2_DEFER_EN BIT(0)
+
+/* Core Control Register */
+#define CORE_RESET BIT(0)
+#define CORE_RX_FIFO_FLUSH BIT(1)
+#define CORE_TX_FIFO_FLUSH BIT(2)
+#define CORE_SEND_JAM BIT(3)
+#define CORE_MDC_EN BIT(4)
+
+/* Definitions for MII access routines*/
+
+#define MII_REG_SHL 16
+#define MII_ADDR_SHL 21
+
+#define MII_GO BIT(31)
+#define MII_WRITE BIT(26)
+#define MII_READ_FAIL BIT(31)
+
+#define MII_TIMEOUT_10TH_SECS 5
+#define MII_10TH_SEC_IN_MILLIS 100
+
+/*
+ *
+ * Default values
+ *
+ */
+
+
+#define MAC_TX_CNTRL1_DEFAULT (\
+ TX_CNTRL1_TX_EN | \
+ TX_CNTRL1_RETRY | \
+ TX_CNTRL1_FCS_EN | \
+ TX_CNTRL1_2DEFER | \
+ TX_CNTRL1_PAD_EN )
+
+#define MAC_TX_MAX_RETRIES_DEFAULT 0x0f
+
+#define MAC_RX_CNTRL1_DEFAULT ( \
+ RX_CNTRL1_PADSTRIP_EN | \
+ RX_CNTRL1_CRC_EN | \
+ RX_CNTRL1_RX_EN )
+
+#define MAC_RX_CNTRL2_DEFAULT 0x0
+#define MAC_TX_CNTRL2_DEFAULT TX_CNTRL2_RETRIES_MASK
+
+/* Thresholds determined by NPE firmware FS */
+#define MAC_THRESH_P_EMPTY_DEFAULT 0x12
+#define MAC_THRESH_P_FULL_DEFAULT 0x30
+
+/* Number of bytes that must be in the tx fifo before
+ * transmission commences */
+#define MAC_BUF_SIZE_TX_DEFAULT 0x8
+
+/* One-part deferral values */
+#define MAC_TX_DEFER_DEFAULT 0x15
+#define MAC_RX_DEFER_DEFAULT 0x16
+
+/* Two-part deferral values... */
+#define MAC_TX_TWO_DEFER_1_DEFAULT 0x08
+#define MAC_TX_TWO_DEFER_2_DEFAULT 0x07
+
+/* This value applies to MII */
+#define MAC_SLOT_TIME_DEFAULT 0x80
+
+/* This value applies to RMII */
+#define MAC_SLOT_TIME_RMII_DEFAULT 0xFF
+
+#define MAC_ADDR_MASK_DEFAULT 0xFF
+
+#define MAC_INT_CLK_THRESH_DEFAULT 0x1
+/* The following is a value chosen at random */
+#define RANDOM_SEED_DEFAULT 0x8
+
+/* By default we must configure the MAC to generate the MDC clock*/
+#define CORE_DEFAULT (CORE_MDC_EN)
+
+/* End of Intel provided register information */
+
+extern int
+mdio_read_register(struct net_device *dev, int phy_addr, int phy_reg);
+extern void
+mdio_write_register(struct net_device *dev, int phy_addr, int phy_reg, int val);
+extern void init_mdio(struct net_device *dev, int phy_id);
+
+struct mac_info {
+ u32 __iomem *addr;
+ struct resource *res;
+ struct device *npe_dev;
+ struct qm_qmgr *qmgr;
+ struct qm_queue *rxq;
+ struct qm_queue *txq;
+ u32 irqflags;
+ struct net_device_stats stat;
+ struct mii_if_info mii;
+ struct work_struct mdio_thread;
+ int rxq_pkt;
+ int unloading;
+ struct mac_plat_info *plat;
+};
+
+static inline void mac_write_reg(struct mac_info *mac, int offset, u32 val)
+{
+ *(mac->addr + offset) = val;
+}
+static inline u32 mac_read_reg(struct mac_info *mac, int offset)
+{
+ return *(mac->addr + offset);
+}
+static inline void mac_set_regbit(struct mac_info *mac, int offset, u32 bit)
+{
+ mac_write_reg(mac, offset, mac_read_reg(mac, offset) | bit);
+}
+static inline void mac_reset_regbit(struct mac_info *mac, int offset, u32 bit)
+{
+ mac_write_reg(mac, offset, mac_read_reg(mac, offset) & ~bit);
+}
+
+static inline void mac_mdio_cmd_write(struct mac_info *mac, u32 cmd)
+{
+ int i;
+ for(i=0; i<4; i++) {
+ mac_write_reg(mac, MAC_MDIO_CMD + i, cmd & 0xff);
+ cmd >>=8;
+ }
+}
+
+#define mac_mdio_cmd_read(mac) mac_mdio_read((mac), MAC_MDIO_CMD)
+#define mac_mdio_status_read(mac) mac_mdio_read((mac), MAC_MDIO_STS)
+static inline u32 mac_mdio_read(struct mac_info *mac, int offset)
+{
+ int i;
+ u32 data = 0;
+ for(i=0; i<4; i++) {
+ data |= (mac_read_reg(mac, offset + i) & 0xff) << (i*8);
+ }
+ return data;
+}
+
+static inline u32 mdio_cmd(int phy_addr, int phy_reg)
+{
+ return phy_addr << MII_ADDR_SHL |
+ phy_reg << MII_REG_SHL |
+ MII_GO;
+}
+
+#define MAC_REG_LIST { \
+ MAC_TX_CNTRL1, MAC_TX_CNTRL2, \
+ MAC_RX_CNTRL1, MAC_RX_CNTRL2, \
+ MAC_RANDOM_SEED, MAC_THRESH_P_EMPTY, MAC_THRESH_P_FULL, \
+ MAC_BUF_SIZE_TX, MAC_TX_DEFER, MAC_RX_DEFER, \
+ MAC_TX_TWO_DEFER_1, MAC_TX_TWO_DEFER_2, MAC_SLOT_TIME, \
+ MAC_ADDR_MASK +0, MAC_ADDR_MASK +1, MAC_ADDR_MASK +2, \
+ MAC_ADDR_MASK +3, MAC_ADDR_MASK +4, MAC_ADDR_MASK +5, \
+ MAC_ADDR +0, MAC_ADDR +1, MAC_ADDR +2, \
+ MAC_ADDR +3, MAC_ADDR +4, MAC_ADDR +5, \
+ MAC_INT_CLK_THRESH, \
+ MAC_UNI_ADDR +0, MAC_UNI_ADDR +1, MAC_UNI_ADDR +2, \
+ MAC_UNI_ADDR +3, MAC_UNI_ADDR +4, MAC_UNI_ADDR +5, \
+ MAC_CORE_CNTRL \
+}
Index: linux-2.6.18/drivers/net/ixp4xx/mac_driver.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.18/drivers/net/ixp4xx/mac_driver.c 2006-10-17 05:40:03.000000000 -0700
@@ -0,0 +1,578 @@
+/*
+ * mac_driver.c - provide a network interface for each MAC
+ *
+ * Copyright (C) 2006 Christian Hohnstaedt <chohnstaedt@innominate.com>
+ *
+ * This file is released under the GPLv2
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+
+
+#include <linux/ixp_qmgr.h>
+#include <linux/ixp_npe.h>
+#include "mac.h"
+
+#define MDIO_INTERVAL (3*HZ)
+#define RX_QUEUE_PREFILL 64
+
+#define IXMAC_NAME "ixp4xx_mac"
+#define IXMAC_VERSION "0.2.1"
+
+#define MAC_DEFAULT_REG(mac, name) \
+ mac_write_reg(mac, MAC_ ## name, MAC_ ## name ## _DEFAULT)
+
+#define RX_DONE_QID 4
+#define TX_DONE_QID 31
+
+extern int queue_send_skb(struct qm_queue *queue, struct sk_buff *skb);
+extern int queue_fill_skb(struct qm_queue *queue, struct net_device *dev);
+extern int queue_drain(struct qm_queue *queue);
+extern struct sk_buff *queue_return_skb(struct qm_queue *queue);
+
+
+/* Since the NPEs use 1 Return Q for sent frames, we need a device
+ * independent return Q. We call it tx_doneq.
+ * It will be initialized during module load and uninitialized
+ * during module unload. Evil hack, but there is no choice :-(
+ */
+
+static struct qm_queue *tx_doneq = NULL;
+static struct qm_queue *rx_doneq = NULL;
+
+static void mac_init(struct mac_info *mac)
+{
+ MAC_DEFAULT_REG(mac, TX_CNTRL2);
+ MAC_DEFAULT_REG(mac, THRESH_P_EMPTY);
+ MAC_DEFAULT_REG(mac, THRESH_P_FULL);
+ MAC_DEFAULT_REG(mac, TX_DEFER);
+ MAC_DEFAULT_REG(mac, TX_TWO_DEFER_1);
+ MAC_DEFAULT_REG(mac, TX_TWO_DEFER_2);
+ MAC_DEFAULT_REG(mac, SLOT_TIME);
+ MAC_DEFAULT_REG(mac, INT_CLK_THRESH);
+ MAC_DEFAULT_REG(mac, BUF_SIZE_TX);
+ MAC_DEFAULT_REG(mac, TX_CNTRL1);
+ MAC_DEFAULT_REG(mac, RX_CNTRL1);
+}
+
+static void mac_set_uniaddr(struct net_device *dev)
+{
+ int i;
+ struct mac_info *mac = netdev_priv(dev);
+ struct npe_info *npe = dev_get_drvdata(mac->npe_dev);
+
+ /* check for multicast */
+ if (dev->dev_addr[0] & 1)
+ return;
+
+ npe_mh_setportaddr(npe, mac->plat, dev->dev_addr);
+ npe_mh_disable_firewall(npe, mac->plat);
+ for (i=0; i<dev->addr_len; i++)
+ mac_write_reg(mac, MAC_UNI_ADDR + i, dev->dev_addr[i]);
+}
+
+static void update_duplex_mode(struct net_device *dev)
+{
+ struct mac_info *mac = netdev_priv(dev);
+ printk("Duplex mode %s =%d\n", dev->name, mac->mii.full_duplex);
+ if (mac->mii.full_duplex) {
+ mac_reset_regbit(mac, MAC_TX_CNTRL1, TX_CNTRL1_DUPLEX);
+ } else {
+ mac_set_regbit(mac, MAC_TX_CNTRL1, TX_CNTRL1_DUPLEX);
+ }
+}
+
+static int media_check(struct net_device *dev, int init)
+{
+ struct mac_info *mac = netdev_priv(dev);
+
+ if (mii_check_media(&mac->mii, 1, init)) {
+ update_duplex_mode(dev);
+ return 1;
+ }
+ return 0;
+}
+
+static void irqcb_recv(struct qm_queue *queue)
+{
+ struct net_device *dev;
+ struct mac_info *mac;
+ struct sk_buff *skb;
+
+ queue_ack_irq(queue);
+ skb = queue_return_skb(queue);
+ while (skb) {
+ int rc;
+ dev = skb->dev;
+ mac = netdev_priv(dev);
+ skb->protocol = eth_type_trans(skb, dev);
+ dev->last_rx = jiffies;
+ rc = netif_rx(skb);
+ if (rc == NET_RX_DROP) {
+ mac->stat.rx_dropped++;
+ } else {
+ mac->stat.rx_packets++;
+ mac->stat.rx_bytes += skb->len;
+ }
+
+ if (!mac->unloading)
+ queue_fill_skb(mac->rxq, dev);
+ else
+ mac->rxq_pkt--;
+
+ skb = queue_return_skb(queue);
+ }
+}
+
+void irqcb_txdone(struct qm_queue *queue)
+{
+ queue_ack_irq(queue);
+ while (queue_drain(queue));
+}
+
+static void ixmac_set_rx_mode (struct net_device *dev)
+{
+ struct mac_info *mac = netdev_priv(dev);
+ struct dev_mc_list *mclist;
+ u8 aset[dev->addr_len], aclear[dev->addr_len];
+ int i,j;
+
+ if (dev->flags & IFF_PROMISC) {
+ mac_reset_regbit(mac, MAC_RX_CNTRL1, RX_CNTRL1_ADDR_FLTR_EN);
+ } else {
+ mac_set_regbit(mac, MAC_RX_CNTRL1, RX_CNTRL1_ADDR_FLTR_EN);
+
+ mclist = dev->mc_list;
+ memset(aset, 0xff, dev->addr_len);
+ memset(aclear, 0x00, dev->addr_len);
+ for (i = 0; mclist && i < dev->mc_count; i++) {
+ for (j=0; j< dev->addr_len; j++) {
+ aset[j] &= mclist->dmi_addr[j];
+ aclear[j] |= mclist->dmi_addr[j];
+ }
+ mclist = mclist->next;
+ }
+ for (j=0; j< dev->addr_len; j++) {
+ aclear[j] = aset[j] | ~aclear[j];
+ }
+ for (i=0; i<dev->addr_len; i++) {
+ mac_write_reg(mac, MAC_ADDR + i, aset[i]);
+ mac_write_reg(mac, MAC_ADDR_MASK + i, aclear[i]);
+ }
+ }
+}
+
+static int ixmac_open (struct net_device *dev)
+{
+ struct mac_info *mac = netdev_priv(dev);
+ struct npe_info *npe = dev_get_drvdata(mac->npe_dev);
+ int i;
+
+ /* first check if Microcode was downloaded into this NPE */
+ if (!( npe_status(npe) & IX_NPEDL_EXCTL_STATUS_RUN)) {
+ printk(KERN_ERR "Missing microcode for %s\n", npe->plat->name);
+ return -EIO;
+ }
+
+ for (i=0; i<RX_QUEUE_PREFILL; i++) {
+ queue_fill_skb(mac->rxq, dev);
+ }
+ mac->rxq_pkt += RX_QUEUE_PREFILL;
+
+ mac_init(mac);
+ npe_mh_set_rxqid(npe, mac->plat, RX_DONE_QID);
+ mac_set_uniaddr(dev);
+
+ media_check(dev, 1);
+
+ ixmac_set_rx_mode(dev);
+
+ netif_start_queue(dev);
+ schedule_delayed_work(&mac->mdio_thread, MDIO_INTERVAL);
+ return 0;
+}
+
+static int ixmac_start_xmit (struct sk_buff *skb, struct net_device *dev)
+{
+ struct mac_info *mac = netdev_priv(dev);
+
+ if (queue_send_skb(mac->txq, skb)) {
+ mac->stat.tx_packets++;
+ mac->stat.tx_bytes += skb->len;
+ } else {
+ mac->stat.tx_errors++;
+ dev_kfree_skb(skb);
+ }
+
+ dev->trans_start = jiffies;
+ return 0;
+}
+
+static int ixmac_close (struct net_device *dev)
+{
+ struct mac_info *mac = netdev_priv(dev);
+
+ netif_stop_queue (dev);
+
+ if (mac->mdio_thread.pending)
+ cancel_rearming_delayed_work(&mac->mdio_thread);
+
+
+ /* After doing all our business, the rxfreeq must
+ * carry as much packets as we gave it during setup.
+ * Here we calc the missing packets.
+ */
+ mac->rxq_pkt -= queue_len(mac->rxq);
+
+ while (queue_drain(mac->txq));
+ while (queue_drain(mac->rxq));
+
+ return 0;
+}
+
+static int ixmac_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+{
+ struct mac_info *mac = netdev_priv(dev);
+ int rc, duplex_changed;
+
+ if (!netif_running(dev))
+ return -EINVAL;
+
+
+ if (!try_module_get(THIS_MODULE))
+ return -ENODEV;
+ rc = generic_mii_ioctl(&mac->mii, if_mii(rq), cmd, &duplex_changed);
+ module_put(THIS_MODULE);
+ if (duplex_changed)
+ update_duplex_mode(dev);
+ return rc;
+}
+
+static struct net_device_stats *ixmac_stats (struct net_device *dev)
+{
+ struct mac_info *mac = netdev_priv(dev);
+ return &mac->stat;
+}
+
+static void ixmac_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
+{
+ struct mac_info *mac = netdev_priv(dev);
+ struct npe_info *npe = dev_get_drvdata(mac->npe_dev);
+
+ strcpy(info->driver, IXMAC_NAME);
+ strcpy(info->version, IXMAC_VERSION);
+ if (npe_status(npe) & IX_NPEDL_EXCTL_STATUS_RUN) {
+ snprintf(info->fw_version, 32, "%d.%d func [%d]",
+ npe->img_info[2], npe->img_info[3], npe->img_info[1]);
+ }
+ strncpy(info->bus_info, npe->plat->name, ETHTOOL_BUSINFO_LEN);
+}
+
+static int ixmac_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct mac_info *mac = netdev_priv(dev);
+ mii_ethtool_gset(&mac->mii, cmd);
+ return 0;
+}
+
+static int ixmac_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct mac_info *mac = netdev_priv(dev);
+ int rc;
+ rc = mii_ethtool_sset(&mac->mii, cmd);
+ return rc;
+}
+
+static int ixmac_nway_reset(struct net_device *dev)
+{
+ struct mac_info *mac = netdev_priv(dev);
+ return mii_nway_restart(&mac->mii);
+}
+
+static u32 ixmac_get_link(struct net_device *dev)
+{
+ struct mac_info *mac = netdev_priv(dev);
+ return mii_link_ok(&mac->mii);
+}
+
+static const int mac_reg_list[] = MAC_REG_LIST;
+
+static int ixmac_get_regs_len(struct net_device *dev)
+{
+ return ARRAY_SIZE(mac_reg_list);
+}
+
+static void
+ixmac_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf)
+{
+ int i;
+ struct mac_info *mac = netdev_priv(dev);
+ u8 *buf = regbuf;
+
+ for (i=0; i<regs->len; i++) {
+ buf[i] = mac_read_reg(mac, mac_reg_list[i]);
+ }
+}
+
+static struct ethtool_ops ixmac_ethtool_ops = {
+ .get_drvinfo = ixmac_get_drvinfo,
+ .get_settings = ixmac_get_settings,
+ .set_settings = ixmac_set_settings,
+ .nway_reset = ixmac_nway_reset,
+ .get_link = ixmac_get_link,
+ .get_regs_len = ixmac_get_regs_len,
+ .get_regs = ixmac_get_regs,
+ .get_perm_addr = ethtool_op_get_perm_addr,
+};
+static void mac_mdio_thread (void *_data)
+{
+ struct net_device *dev = _data;
+ struct mac_info *mac = netdev_priv(dev);
+
+ media_check(dev, 0);
+ schedule_delayed_work(&mac->mdio_thread, MDIO_INTERVAL);
+}
+
+static int mac_probe(struct platform_device *pdev)
+{
+ struct resource *res;
+ struct mac_info *mac;
+ struct net_device* dev;
+ struct npe_info *npe;
+ struct mac_plat_info *plat = pdev->dev.platform_data;
+ int size, ret;
+
+ if (!(res = platform_get_resource(pdev, IORESOURCE_MEM, 0))) {
+ return -EIO;
+ }
+ if (!(dev = alloc_etherdev (sizeof(struct mac_info)))) {
+ return -ENOMEM;
+ }
+ SET_MODULE_OWNER(dev);
+ SET_NETDEV_DEV(dev, &pdev->dev);
+ mac = netdev_priv(dev);
+
+ size = res->end - res->start +1;
+ mac->res = request_mem_region(res->start, size, IXMAC_NAME);
+ if (!mac->res) {
+ ret = -EBUSY;
+ goto out_free;
+ }
+
+ mac->addr = ioremap(res->start, size);
+ if (!mac->addr) {
+ ret = -ENOMEM;
+ goto out_rel;
+ }
+
+ dev->open = ixmac_open;
+ dev->hard_start_xmit = ixmac_start_xmit;
+ dev->stop = ixmac_close;
+ dev->get_stats = ixmac_stats;
+ dev->do_ioctl = ixmac_ioctl;
+ dev->set_multicast_list = ixmac_set_rx_mode;
+ dev->ethtool_ops = &ixmac_ethtool_ops;
+
+ mac->npe_dev = get_npe_by_id(plat->npe_id);
+ if (!mac->npe_dev) {
+ ret = -EIO;
+ goto out_unmap;
+ }
+ if (!try_module_get(mac->npe_dev->driver->owner)) {
+ put_device(mac->npe_dev);
+ ret = -EIO;
+ goto out_unmap;
+ }
+
+ npe = dev_get_drvdata(mac->npe_dev);
+
+ mac->rxq = request_queue(plat->rxq_id, 128);
+ if (IS_ERR(mac->rxq)) {
+ printk(KERN_ERR "Error requesting Q: %d\n", plat->rxq_id);
+ ret = -EBUSY;
+ goto out_putmod;
+ }
+ mac->txq = request_queue(plat->txq_id, 128);
+ if (IS_ERR(mac->txq)) {
+ printk(KERN_ERR "Error requesting Q: %d\n", plat->txq_id);
+ release_queue(mac->rxq);
+ ret = -EBUSY;
+ goto out_putmod;
+ }
+
+ mac->qmgr = dev_get_drvdata(mac->rxq->dev);
+ if (register_netdev (dev)) {
+ release_queue(mac->rxq);
+ release_queue(mac->txq);
+ ret = -EIO;
+ goto out_putmod;
+ }
+
+ mac->plat = plat;
+ platform_set_drvdata(pdev, dev);
+
+ mac_write_reg(mac, MAC_CORE_CNTRL, CORE_RESET);
+ udelay(500);
+ mac_write_reg(mac, MAC_CORE_CNTRL, CORE_MDC_EN);
+
+ init_mdio(dev, plat->phy_id);
+
+ INIT_WORK(&mac->mdio_thread, mac_mdio_thread, dev);
+
+ /* The place of the MAC address is very system dependent.
+ * Here we use a random one to be replaced by one of the
+ * following commands:
+ * "ip link set address 02:03:04:04:04:01 dev eth0"
+ * "ifconfig eth0 hw ether 02:03:04:04:04:07"
+ */
+ random_ether_addr(dev->dev_addr);
+ dev->dev_addr[5] = plat->phy_id;
+
+ printk(KERN_INFO IXMAC_NAME " driver " IXMAC_VERSION
+ ": %s on %s with PHY[%d] initialized\n",
+ dev->name, npe->plat->name, plat->phy_id);
+
+ return 0;
+
+out_putmod:
+ module_put(mac->npe_dev->driver->owner);
+out_unmap:
+ iounmap(mac->addr);
+out_rel:
+ release_resource(mac->res);
+out_free:
+ kfree(mac);
+ return ret;
+}
+
+static int mac_remove(struct platform_device *pdev)
+{
+ struct net_device* dev = platform_get_drvdata(pdev);
+ struct mac_info *mac = netdev_priv(dev);
+ struct npe_info *npe = dev_get_drvdata(mac->npe_dev);
+ int loop = 0;
+ struct sk_buff *skb;
+
+ ixmac_close(dev);
+
+ mac->unloading = 1;
+
+ /* Now there are some skb hold by the NPE.
+ * We switch the MAC in loopback mode and send a pseudo packet
+ * that will be returned by the NPE in its last SKB.
+ * We will also try to isolate the PHY to keep the packets internal.
+ */
+
+ if (npe_status(npe) & IX_NPEDL_EXCTL_STATUS_RUN) {
+ mac_reset_regbit(mac, MAC_CORE_CNTRL, CORE_MDC_EN);
+ mac_set_regbit(mac, MAC_RX_CNTRL1, RX_CNTRL1_LOOP_EN);
+
+ npe_mh_npe_loopback_mode(npe, mac->plat, 1);
+ mdelay(200);
+
+ while (mac->rxq_pkt && loop++ < 2000 ) {
+ skb = dev_alloc_skb(128);
+ skb_put(skb, 64);
+ /* actually the packets should never leave the system,
+ * but if they do, they shall contain 0s instead of
+ * intresting random data....
+ */
+ memset(skb->data, 0, skb->len);
+ queue_send_skb(mac->txq, skb);
+
+ mdelay(1);
+ }
+
+ npe_mh_npe_loopback_mode(npe, mac->plat, 0);
+ }
+ /* Flush MAC TX fifo to drain the bogus packages */
+ mac_set_regbit(mac, MAC_CORE_CNTRL, CORE_TX_FIFO_FLUSH);
+ mac_reset_regbit(mac, MAC_RX_CNTRL1, RX_CNTRL1_RX_EN);
+ mac_reset_regbit(mac, MAC_TX_CNTRL1, TX_CNTRL1_TX_EN);
+ mac_reset_regbit(mac, MAC_RX_CNTRL1, RX_CNTRL1_LOOP_EN);
+ mac_reset_regbit(mac, MAC_CORE_CNTRL, CORE_TX_FIFO_FLUSH);
+ mac_reset_regbit(mac, MAC_CORE_CNTRL, CORE_TX_FIFO_FLUSH);
+
+ unregister_netdev(dev);
+
+ while (queue_drain(mac->txq));
+ release_queue(mac->txq);
+ while (queue_drain(mac->rxq));
+ release_queue(mac->rxq);
+
+ module_put(mac->npe_dev->driver->owner);
+ put_device(mac->npe_dev);
+
+ iounmap(mac->addr);
+ release_resource(mac->res);
+ platform_set_drvdata(pdev, NULL);
+ free_netdev(dev);
+ return 0;
+}
+
+static struct platform_driver ixp4xx_mac = {
+ .driver.name = IXMAC_NAME,
+ .probe = mac_probe,
+ .remove = mac_remove,
+};
+
+static int __init init_mac(void)
+{
+ /* The TX done Queue handles skbs sent out by the NPE */
+ tx_doneq = request_queue(TX_DONE_QID, 128);
+ if (IS_ERR(tx_doneq)) {
+ printk(KERN_ERR "Error requesting Q: %d\n", TX_DONE_QID);
+ return -EBUSY;
+ }
+ tx_doneq->irq_cb = irqcb_txdone;
+ /* drain the TX queue if it is half full */
+ queue_set_watermarks(tx_doneq, 0, 64);
+ queue_set_irq_src(tx_doneq, Q_IRQ_ID_NF);
+ queue_enable_irq(tx_doneq);
+
+ /* RX Queue handles SKBs with a valid frame */
+ rx_doneq = request_queue(RX_DONE_QID, 128);
+ if (IS_ERR(rx_doneq)) {
+ printk(KERN_ERR "Error requesting Q: %d\n", RX_DONE_QID);
+ return -EBUSY;
+ }
+ irqcb_recv(rx_doneq);
+ rx_doneq->irq_cb = irqcb_recv;
+ queue_set_watermarks(rx_doneq, 0, 0);
+ queue_set_irq_src(rx_doneq, Q_IRQ_ID_NOT_E);
+ queue_enable_irq(rx_doneq);
+
+ return platform_driver_register(&ixp4xx_mac);
+}
+
+static void __exit finish_mac(void)
+{
+ platform_driver_unregister(&ixp4xx_mac);
+ if (tx_doneq) {
+ queue_disable_irq(tx_doneq);
+ while (queue_drain(tx_doneq));
+ release_queue(tx_doneq);
+ }
+ if (rx_doneq) {
+ queue_disable_irq(rx_doneq);
+ while (queue_drain(rx_doneq));
+ release_queue(rx_doneq);
+ }
+}
+
+module_init(init_mac);
+module_exit(finish_mac);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Christian Hohnstaedt <chohnstaedt@innominate.com>");
+
Index: linux-2.6.18/drivers/net/ixp4xx/npe_mh.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.18/drivers/net/ixp4xx/npe_mh.c 2006-10-17 05:26:01.000000000 -0700
@@ -0,0 +1,137 @@
+/*
+ * npe_mh.c - NPE message handler.
+ *
+ * Copyright (C) 2006 Christian Hohnstaedt <chohnstaedt@innominate.com>
+ *
+ * This file is released under the GPLv2
+ */
+
+#include <linux/ixp_npe.h>
+#include <linux/slab.h>
+
+#define MAX_RETRY 200
+
+struct npe_mh_msg {
+ union {
+ u8 byte[8]; /* Very desciptive name, I know ... */
+ u32 data[2];
+ } u;
+};
+
+/*
+ * The whole code in this function must be reworked.
+ * It is in a state that works but is not rock solid
+ */
+static int send_message(struct npe_info *npe, struct npe_mh_msg *msg)
+{
+ int i,j;
+ u32 send[2], recv[2];
+
+ for (i=0; i<2; i++)
+ send[i] = be32_to_cpu(msg->u.data[i]);
+
+ if ((npe_reg_read(npe, IX_NPEDL_REG_OFFSET_STAT) &
+ IX_NPEMH_NPE_STAT_IFNE))
+ return -1;
+
+ npe_reg_write(npe, IX_NPEDL_REG_OFFSET_FIFO, send[0]);
+ for(i=0; i<MAX_RETRY; i++) {
+ /* if the IFNF status bit is unset then the inFIFO is full */
+ if (npe_reg_read(npe, IX_NPEDL_REG_OFFSET_STAT) &
+ IX_NPEMH_NPE_STAT_IFNF)
+ break;
+ }
+ if (i>=MAX_RETRY)
+ return -1;
+ npe_reg_write(npe, IX_NPEDL_REG_OFFSET_FIFO, send[1]);
+ i=0;
+ while (!(npe_reg_read(npe, IX_NPEDL_REG_OFFSET_STAT) &
+ IX_NPEMH_NPE_STAT_OFNE)) {
+ if (i++>MAX_RETRY) {
+ printk("Waiting for Output FIFO NotEmpty failed\n");
+ return -1;
+ }
+ }
+ //printk("Output FIFO Not Empty. Loops: %d\n", i);
+ j=0;
+ while (npe_reg_read(npe, IX_NPEDL_REG_OFFSET_STAT) &
+ IX_NPEMH_NPE_STAT_OFNE) {
+ recv[j&1] = npe_reg_read(npe,IX_NPEDL_REG_OFFSET_FIFO);
+ j++;
+ }
+ if ((recv[0] != send[0]) || (recv[1] != send[1])) {
+ printk("Unexpected answer: Send %08x:%08x Ret %08x:%08x\n",
+ send[0], send[1], recv[0], recv[1]);
+ }
+ return 0;
+}
+
+#define CMD 0
+#define PORT 1
+#define MAC 2
+
+#define IX_ETHNPE_EDB_SETPORTADDRESS 0x01
+#define IX_ETHNPE_FW_SETFIREWALLMODE 0x0E
+#define IX_ETHNPE_VLAN_SETRXQOSENTRY 0x0B
+#define IX_ETHNPE_SETLOOPBACK_MODE 0x12
+
+#define logical_id(mp) (((mp)->npe_id << 4) | ((mp)->port_id & 0xf))
+
+int npe_mh_setportaddr(struct npe_info *npe, struct mac_plat_info *mp,
+ u8 *macaddr)
+{
+ struct npe_mh_msg msg;
+
+ msg.u.byte[CMD] = IX_ETHNPE_EDB_SETPORTADDRESS;
+ msg.u.byte[PORT] = mp->eth_id;
+ memcpy(msg.u.byte + MAC, macaddr, 6);
+
+ return send_message(npe, &msg);
+}
+
+int npe_mh_disable_firewall(struct npe_info *npe, struct mac_plat_info *mp)
+{
+ struct npe_mh_msg msg;
+
+ memset(&msg, 0, sizeof(msg));
+ msg.u.byte[CMD] = IX_ETHNPE_FW_SETFIREWALLMODE;
+ msg.u.byte[PORT] = logical_id(mp);
+
+ return send_message(npe, &msg);
+}
+
+int npe_mh_npe_loopback_mode(struct npe_info *npe, struct mac_plat_info *mp,
+ int enable)
+{
+ struct npe_mh_msg msg;
+
+ memset(&msg, 0, sizeof(msg));
+ msg.u.byte[CMD] = IX_ETHNPE_SETLOOPBACK_MODE;
+ msg.u.byte[PORT] = logical_id(mp);
+ msg.u.byte[3] = enable ? 1 : 0;
+
+ return send_message(npe, &msg);
+}
+
+int npe_mh_set_rxqid(struct npe_info *npe, struct mac_plat_info *mp, int qid)
+{
+ struct npe_mh_msg msg;
+ int i, ret;
+
+ memset(&msg, 0, sizeof(msg));
+ msg.u.byte[CMD] = IX_ETHNPE_VLAN_SETRXQOSENTRY;
+ msg.u.byte[PORT] = logical_id(mp);
+ msg.u.byte[5] = qid | 0x80;
+ msg.u.byte[7] = qid<<4;
+ for(i=0; i<8; i++) {
+ msg.u.byte[3] = i;
+ if ((ret = send_message(npe, &msg)))
+ return ret;
+ }
+ return 0;
+}
+
+EXPORT_SYMBOL(npe_mh_setportaddr);
+EXPORT_SYMBOL(npe_mh_disable_firewall);
+EXPORT_SYMBOL(npe_mh_set_rxqid);
+EXPORT_SYMBOL(npe_mh_npe_loopback_mode);
Index: linux-2.6.18/drivers/net/ixp4xx/phy.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.18/drivers/net/ixp4xx/phy.c 2006-10-17 05:26:01.000000000 -0700
@@ -0,0 +1,113 @@
+/*
+ * phy.c - MDIO functions and mii initialisation
+ *
+ * Copyright (C) 2006 Christian Hohnstaedt <chohnstaedt@innominate.com>
+ *
+ * This file is released under the GPLv2
+ */
+
+
+#include <linux/mutex.h>
+#include "mac.h"
+
+#define MAX_PHYS (1<<5)
+
+/*
+ * We must always use the same MAC for acessing the MDIO
+ * We may not use each MAC for its PHY :-(
+ */
+
+static struct net_device *phy_dev = NULL;
+static struct mutex mtx;
+
+/* here we remember if the PHY is alive, to avoid log dumping */
+static int phy_works[MAX_PHYS];
+
+int mdio_read_register(struct net_device *dev, int phy_addr, int phy_reg)
+{
+ struct mac_info *mac;
+ u32 cmd, reg;
+ int cnt = 0;
+
+ if (!phy_dev)
+ return 0;
+
+ mac = netdev_priv(phy_dev);
+ cmd = mdio_cmd(phy_addr, phy_reg);
+ mutex_lock_interruptible(&mtx);
+ mac_mdio_cmd_write(mac, cmd);
+ while((cmd = mac_mdio_cmd_read(mac)) & MII_GO) {
+ if (++cnt >= 100) {
+ printk("%s: PHY[%d] access failed\n",
+ dev->name, phy_addr);
+ break;
+ }
+ schedule();
+ }
+ reg = mac_mdio_status_read(mac);
+ mutex_unlock(&mtx);
+ if (reg & MII_READ_FAIL) {
+ if (phy_works[phy_addr]) {
+ printk("%s: PHY[%d] unresponsive\n",
+ dev->name, phy_addr);
+ }
+ reg = 0;
+ phy_works[phy_addr] = 0;
+ } else {
+ if ( !phy_works[phy_addr]) {
+ printk("%s: PHY[%d] responsive again\n",
+ dev->name, phy_addr);
+ }
+ phy_works[phy_addr] = 1;
+ }
+ return reg & 0xffff;
+}
+
+void
+mdio_write_register(struct net_device *dev, int phy_addr, int phy_reg, int val)
+{
+ struct mac_info *mac;
+ u32 cmd;
+ int cnt=0;
+
+ if (!phy_dev)
+ return;
+
+ mac = netdev_priv(phy_dev);
+ cmd = mdio_cmd(phy_addr, phy_reg) | MII_WRITE | val;
+
+ mutex_lock_interruptible(&mtx);
+ mac_mdio_cmd_write(mac, cmd);
+ while((cmd = mac_mdio_cmd_read(mac)) & MII_GO) {
+ if (++cnt >= 100) {
+ printk("%s: PHY[%d] access failed\n",
+ dev->name, phy_addr);
+ break;
+ }
+ schedule();
+ }
+ mutex_unlock(&mtx);
+}
+
+void init_mdio(struct net_device *dev, int phy_id)
+{
+ struct mac_info *mac = netdev_priv(dev);
+ int i;
+
+ /* All phy operations should use the same MAC
+ * (my experience)
+ */
+ if (mac->plat->eth_id == 0) {
+ mutex_init(&mtx);
+ phy_dev = dev;
+ for (i=0; i<MAX_PHYS; i++)
+ phy_works[i] = 1;
+ }
+ mac->mii.dev = dev;
+ mac->mii.phy_id = phy_id;
+ mac->mii.phy_id_mask = MAX_PHYS - 1;
+ mac->mii.reg_num_mask = 0x1f;
+ mac->mii.mdio_read = mdio_read_register;
+ mac->mii.mdio_write = mdio_write_register;
+}
+
Index: linux-2.6.18/drivers/net/ixp4xx/qmgr_eth.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.18/drivers/net/ixp4xx/qmgr_eth.c 2006-10-17 05:26:01.000000000 -0700
@@ -0,0 +1,127 @@
+/*
+ * qmgr_eth.c - Glue between qmgr and MAC. Linked to mac to keep qmgr.ko
+ * more virtual
+ *
+ * Copyright (C) 2006 Christian Hohnstaedt <chohnstaedt@innominate.com>
+ *
+ * This file is released under the GPLv2
+ */
+
+#include <linux/skbuff.h>
+#include <linux/dma-mapping.h>
+#include <linux/netdevice.h>
+#include <linux/ixp_qmgr.h>
+
+#define SKB_SIZE 1688
+
+int queue_send_skb(struct qm_queue *queue, struct sk_buff *skb)
+{
+ struct npe_cont *cont;
+ struct qm_qmgr *qmgr = dev_get_drvdata(queue->dev);
+
+ cont = qmgr_get_cont(qmgr);
+ if (!cont)
+ return 0;
+
+ cont->h.skb = skb;
+#ifndef __ARMEB__
+ /* swap the payload of the SKB */
+ {
+ u32 *p = (u32*)((unsigned)skb->data & ~0x3);
+ u32 *e = (u32*)(((unsigned)skb->data + skb->len + 3) & ~0x3);
+ while (p < e)
+ *p = cpu_to_be32(*p), ++p;
+ }
+#endif
+ /* fill the NPE information record */
+ cont->ctl.eth.next = 0;
+ cont->ctl.eth.buf_len = skb->end - skb->head;
+ cont->ctl.eth.pkt_len = skb->len;
+ cont->ctl.eth.phys_addr =
+ dma_map_single(queue->dev, skb->data, skb->len, DMA_TO_DEVICE);
+
+ queue_put_entry(queue, cont->phys);
+
+ if (queue_stat(queue) == 2) { /* overflow */
+ return 0;
+ }
+ return 1;
+}
+
+int queue_fill_skb(struct qm_queue *queue, struct net_device *dev)
+{
+ struct npe_cont *cont;
+ struct sk_buff *skb;
+ struct qm_qmgr *qmgr = dev_get_drvdata(queue->dev);
+ int len;
+
+ cont = qmgr_get_cont(qmgr);
+ if (!cont)
+ return 0;
+ skb = dev_alloc_skb(SKB_SIZE);
+ if (!skb) {
+ qmgr_return_cont(qmgr, cont);
+ return 0;
+ }
+ len = skb->end - skb->data;
+ skb->dev = dev;
+ cont->h.skb = skb;
+ cont->ctl.eth.next = 0;
+ cont->ctl.eth.buf_len = len;
+ cont->ctl.eth.pkt_len = 0;
+ cont->ctl.eth.phys_addr =
+ dma_map_single(queue->dev, skb->data, len, DMA_FROM_DEVICE);
+
+ queue_put_entry(queue, cont->phys);
+
+ /* TODO: check quelen ?
+ * The current use guarantees that this queues will never overflow.
+ */
+ return 1;
+}
+
+int queue_drain(struct qm_queue *queue)
+{
+ u32 phys = *queue->acc_reg & ~0xf;
+ struct npe_cont *cont;
+
+ if (!phys)
+ return 0;
+ cont = dma_to_virt(queue->dev, phys);
+ cont = cont->virt;
+ dev_kfree_skb_any(cont->h.skb);
+ qmgr_return_cont(dev_get_drvdata(queue->dev), cont);
+ return 1;
+}
+
+struct sk_buff *queue_return_skb(struct qm_queue *queue)
+{
+ u32 phys = *queue->acc_reg & ~0xf;
+ struct sk_buff *skb;
+ struct npe_cont *cont;
+ int len, buflen;
+
+ if (!phys)
+ return NULL;
+
+ cont = dma_to_virt(queue->dev, phys);
+ cont = cont->virt;
+ skb = cont->h.skb;
+ buflen = cont->ctl.eth.buf_len;
+ len = cont->ctl.eth.pkt_len;
+ dma_unmap_single(queue->dev, cont->ctl.eth.phys_addr,
+ buflen, DMA_FROM_DEVICE);
+ qmgr_return_cont(dev_get_drvdata(queue->dev), cont);
+ skb_put(skb, len);
+#ifndef __ARMEB__
+ /* swap the payload of the SKB */
+ {
+ u32 *p = (u32*)((unsigned)skb->data & ~0x3);
+ u32 *e = (u32*)(((unsigned)skb->data + skb->len + 3) & ~0x3);
+ while (p < e)
+ *p = cpu_to_be32(*p), ++p;
+ }
+#endif
+ return skb;
+}
+
Index: linux-2.6.18/drivers/net/ixp4xx/ucode_dl.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.18/drivers/net/ixp4xx/ucode_dl.c 2006-10-17 05:26:01.000000000 -0700
@@ -0,0 +1,466 @@
+/*
+ * ucode_dl.c - provide an NPE device and a char-dev for microcode download
+ *
+ * Copyright (C) 2006 Christian Hohnstaedt <chohnstaedt@innominate.com>
+ *
+ * This file is released under the GPLv2
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/miscdevice.h>
+#include <linux/platform_device.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/firmware.h>
+#include <linux/dma-mapping.h>
+#include <linux/byteorder/swab.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+
+#include <linux/ixp_npe.h>
+
+#define IXNPE_VERSION "IXP4XX NPE driver Version 0.2.0"
+
+#define DL_MAGIC 0xfeedf00d
+#define DL_MAGIC_SWAP 0x0df0edfe
+
+#define EOF_BLOCK 0xf
+#define IMG_SIZE(image) (((image)->size * sizeof(u32)) + \
+ sizeof(struct dl_image))
+
+#define BT_INSTR 0
+#define BT_DATA 1
+
+enum blk_type {
+ instruction,
+ data,
+};
+
+struct dl_block {
+ u32 type;
+ u32 offset;
+};
+
+struct dl_image {
+ u32 magic;
+ u32 id;
+ u32 size;
+ union {
+ u32 data[0];
+ struct dl_block block[0];
+ } u;
+};
+
+struct dl_codeblock {
+ u32 npe_addr;
+ u32 size;
+ u32 data[0];
+};
+
+static struct platform_driver ixp4xx_npe_driver;
+
+static void npe_stop(struct npe_info *npe)
+{
+ npe_write_exctl(npe, IX_NPEDL_EXCTL_CMD_NPE_STOP);
+ npe_write_exctl(npe, IX_NPEDL_EXCTL_CMD_NPE_CLR_PIPE);
+}
+static void npe_reset_active(struct npe_info *npe, u32 reg)
+{
+ u32 regval;
+
+ regval = npe_read_ecs_reg(npe, reg);
+ regval &= ~IX_NPEDL_MASK_ECS_REG_0_ACTIVE;
+ npe_write_ecs_reg(npe, reg, regval);
+}
+
+static void npe_start(struct npe_info *npe)
+{
+ npe_reset_active(npe, IX_NPEDL_ECS_PRI_1_CTXT_REG_0);
+ npe_reset_active(npe, IX_NPEDL_ECS_PRI_2_CTXT_REG_0);
+ npe_reset_active(npe, IX_NPEDL_ECS_DBG_CTXT_REG_0);
+
+ npe_write_exctl(npe, IX_NPEDL_EXCTL_CMD_NPE_CLR_PIPE);
+ npe_write_exctl(npe, IX_NPEDL_EXCTL_CMD_NPE_START);
+}
+
+static int
+download_block(struct npe_info *npe, struct dl_codeblock *cb, unsigned type)
+{
+ int i;
+ int cmd;
+
+ switch (type) {
+ case BT_DATA:
+ cmd = IX_NPEDL_EXCTL_CMD_WR_DATA_MEM;
+ if (cb->npe_addr + cb->size > npe->plat->data_size) {
+ printk(KERN_INFO "Data size too large: %d+%d > %d\n",
+ cb->npe_addr, cb->size, npe->plat->data_size);
+ return -EIO;
+ }
+ break;
+ case BT_INSTR:
+ cmd = IX_NPEDL_EXCTL_CMD_WR_INS_MEM;
+ if (cb->npe_addr + cb->size > npe->plat->inst_size) {
+ printk(KERN_INFO "Instr size too large: %d+%d > %d\n",
+ cb->npe_addr, cb->size, npe->plat->inst_size);
+ return -EIO;
+ }
+ break;
+ default:
+ printk(KERN_INFO "Unknown CMD: %d\n", type);
+ return -EIO;
+ }
+
+ for (i=0; i < cb->size; i++) {
+ npe_write_cmd(npe, cb->npe_addr + i, cb->data[i], cmd);
+ }
+
+ return 0;
+}
+
+static int match_by_npeid(struct device *dev, void *id)
+{
+ struct npe_info *npe = dev_get_drvdata(dev);
+ if (!npe->plat)
+ return 0;
+ return (npe->plat->id == *(int*)id);
+}
+
+struct device *get_npe_by_id(int id)
+{
+ return driver_find_device(&ixp4xx_npe_driver.driver, NULL,
+ &id, match_by_npeid);
+}
+
+static int store_npe_image(struct dl_image *image, struct device *dev)
+{
+ struct dl_block *blk;
+ struct dl_codeblock *cb;
+ struct npe_info *npe;
+ int ret=0;
+
+ if (!dev) {
+ dev = get_npe_by_id( (image->id >> 24) & 0xf);
+ put_device(dev);
+ }
+ if (!dev)
+ return -ENODEV;
+
+ npe = dev_get_drvdata(dev);
+
+ if ( npe_status(npe) & IX_NPEDL_EXCTL_STATUS_RUN) {
+ printk(KERN_INFO "Cowardly refusing to reload an Image "
+ "into the running %s\n", npe->plat->name);
+ return 0; /* indicate success anyway... */
+ }
+ npe_stop(npe);
+
+ for (blk = image->u.block; blk->type != EOF_BLOCK; blk++) {
+ if (blk->offset > image->size) {
+ printk(KERN_INFO "Block offset out of range\n");
+ return -EIO;
+ }
+ cb = (struct dl_codeblock*)&image->u.data[blk->offset];
+ if (blk->offset + cb->size + 2 > image->size) {
+ printk(KERN_INFO "Codeblock size out of range\n");
+ return -EIO;
+ }
+ if ((ret = download_block(npe, cb, blk->type)))
+ return ret;
+ }
+ *(u32*)npe->img_info = cpu_to_be32(image->id);
+ npe_start(npe);
+
+ printk(KERN_INFO "Image loaded to %s Func:%x, Rel: %x:%x, Status: %x\n",
+ npe->plat->name, npe->img_info[1], npe->img_info[2],
+ npe->img_info[3], npe_status(npe));
+ return 0;
+}
+
+static int ucode_open(struct inode *inode, struct file *file)
+{
+ file->private_data = kmalloc(sizeof(struct dl_image), GFP_KERNEL);
+ if (!file->private_data)
+ return -ENOMEM;
+ return 0;
+}
+
+static int ucode_close(struct inode *inode, struct file *file)
+{
+ kfree(file->private_data);
+ return 0;
+}
+
+static ssize_t ucode_write(struct file *file, const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ union {
+ char *data;
+ struct dl_image *image;
+ } u;
+ const char __user *cbuf = buf;
+
+ u.data = file->private_data;
+
+ while (count) {
+ int len;
+ if (*ppos < sizeof(struct dl_image)) {
+ len = sizeof(struct dl_image) - *ppos;
+ len = len > count ? count : len;
+ if (copy_from_user(u.data + *ppos, cbuf, len))
+ return -EFAULT;
+ count -= len;
+ *ppos += len;
+ cbuf += len;
+ continue;
+ } else if (*ppos == sizeof(struct dl_image)) {
+ void *data;
+ if (u.image->magic == DL_MAGIC_SWAP) {
+ printk(KERN_INFO "swapped image found\n");
+ u.image->id = swab32(u.image->id);
+ u.image->size = swab32(u.image->size);
+ } else if (u.image->magic != DL_MAGIC) {
+ printk(KERN_INFO "Bad magic:%x\n",
+ u.image->magic);
+ return -EFAULT;
+ }
+ len = IMG_SIZE(u.image);
+ data = kmalloc(len, GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+ memcpy(data, u.data, *ppos);
+ kfree(u.data);
+ u.data = (char*)data;
+ file->private_data = data;
+ }
+ len = IMG_SIZE(u.image) - *ppos;
+ len = len > count ? count : len;
+ if (copy_from_user(u.data + *ppos, cbuf, len))
+ return -EFAULT;
+ count -= len;
+ *ppos += len;
+ cbuf += len;
+ if (*ppos == IMG_SIZE(u.image)) {
+ int ret, i;
+ *ppos = 0;
+ if (u.image->magic == DL_MAGIC_SWAP) {
+ for (i=0; i<u.image->size; i++) {
+ u.image->u.data[i] =
+ swab32(u.image->u.data[i]);
+ }
+ u.image->magic = swab32(u.image->magic);
+ }
+ ret = store_npe_image(u.image, NULL);
+ if (ret) {
+ printk(KERN_INFO "Error in NPE image: %x\n",
+ u.image->id);
+ return ret;
+ }
+ }
+ }
+ return (cbuf-buf);
+}
+
+static void npe_firmware_probe(struct device *dev)
+{
+#if (defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE)) \
+ && defined(MODULE)
+ const struct firmware *fw_entry;
+ struct npe_info *npe = dev_get_drvdata(dev);
+ struct dl_image *image;
+ int ret = -1, i;
+
+ if (request_firmware(&fw_entry, npe->plat->name, dev) != 0) {
+ return;
+ }
+ image = (struct dl_image*)fw_entry->data;
+ /* Sanity checks */
+ if (fw_entry->size < sizeof(struct dl_image)) {
+ printk(KERN_ERR "Firmware error: too small\n");
+ goto out;
+ }
+ if (image->magic == DL_MAGIC_SWAP) {
+ printk(KERN_INFO "swapped image found\n");
+ image->id = swab32(image->id);
+ image->size = swab32(image->size);
+ } else if (image->magic != DL_MAGIC) {
+ printk(KERN_ERR "Bad magic:%x\n", image->magic);
+ goto out;
+ }
+ if (IMG_SIZE(image) != fw_entry->size) {
+ printk(KERN_ERR "Firmware error: bad size\n");
+ goto out;
+ }
+ if (((image->id >> 24) & 0xf) != npe->plat->id) {
+ printk(KERN_ERR "NPE id missmatch\n");
+ goto out;
+ }
+ if (image->magic == DL_MAGIC_SWAP) {
+ for (i=0; i<image->size; i++) {
+ image->u.data[i] = swab32(image->u.data[i]);
+ }
+ image->magic = swab32(image->magic);
+ }
+
+ ret = store_npe_image(image, dev);
+out:
+ if (ret) {
+ printk(KERN_ERR "Error downloading Firmware for %s\n",
+ npe->plat->name);
+ }
+ release_firmware(fw_entry);
+#endif
+}
+
+static void disable_npe_irq(struct npe_info *npe)
+{
+ u32 reg;
+ reg = npe_reg_read(npe, IX_NPEDL_REG_OFFSET_CTL);
+ reg &= ~(IX_NPEMH_NPE_CTL_OFE | IX_NPEMH_NPE_CTL_IFE);
+ reg |= IX_NPEMH_NPE_CTL_OFEWE | IX_NPEMH_NPE_CTL_IFEWE;
+}
+
+static ssize_t show_npe_state(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct npe_info *npe = dev_get_drvdata(dev);
+
+ strcpy(buf, npe_status(npe) & IX_NPEDL_EXCTL_STATUS_RUN ?
+ "start\n" : "stop\n");
+ return strlen(buf);
+}
+
+static ssize_t set_npe_state(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct npe_info *npe = dev_get_drvdata(dev);
+
+ if (!strncmp(buf, "start", 5)) {
+ printk("NPE start\n");
+ npe_start(npe);
+ }
+ if (!strncmp(buf, "stop", 4)) {
+ printk("NPE stop\n");
+ npe_stop(npe);
+ }
+ return count;
+}
+
+static DEVICE_ATTR(state, S_IRUGO | S_IWUSR, show_npe_state, set_npe_state);
+
+static int npe_probe(struct platform_device *pdev)
+{
+ struct resource *res;
+ struct npe_info *npe;
+ struct npe_plat_data *plat = pdev->dev.platform_data;
+ int size, ret=0;
+
+ if (!(res = platform_get_resource(pdev, IORESOURCE_MEM, 0)))
+ return -EIO;
+
+ if (!(npe = kzalloc(sizeof(struct npe_info), GFP_KERNEL)))
+ return -ENOMEM;
+
+ size = res->end - res->start +1;
+ npe->res = request_mem_region(res->start, size, plat->name);
+ if (!npe->res) {
+ ret = -EBUSY;
+ printk(KERN_ERR "Failed to get memregion(%x, %x)\n",
+ res->start, size);
+ goto out_free;
+ }
+
+ npe->addr = ioremap(res->start, size);
+ if (!npe->addr) {
+ ret = -ENOMEM;
+ printk(KERN_ERR "Failed to ioremap(%x, %x)\n",
+ res->start, size);
+ goto out_rel;
+ }
+
+ pdev->dev.coherent_dma_mask = DMA_32BIT_MASK;
+
+ platform_set_drvdata(pdev, npe);
+
+ device_create_file(&pdev->dev, &dev_attr_state);
+
+ npe->plat = plat;
+ disable_npe_irq(npe);
+ if (! (npe_status(npe) & IX_NPEDL_EXCTL_STATUS_RUN))
+ npe_firmware_probe(&pdev->dev);
+
+ return 0;
+
+out_rel:
+ release_resource(npe->res);
+out_free:
+ kfree(npe);
+ return ret;
+}
+
+static struct file_operations ucode_dl_fops = {
+ .owner = THIS_MODULE,
+ .write = ucode_write,
+ .open = ucode_open,
+ .release = ucode_close,
+};
+
+static struct miscdevice ucode_dl_dev = {
+ .minor = MICROCODE_MINOR,
+ .name = "ixp4xx_ucode",
+ .fops = &ucode_dl_fops,
+};
+
+static int npe_remove(struct platform_device *pdev)
+{
+ struct npe_info *npe = platform_get_drvdata(pdev);
+
+ device_remove_file(&pdev->dev, &dev_attr_state);
+
+ iounmap(npe->addr);
+ release_resource(npe->res);
+ kfree(npe);
+ return 0;
+}
+
+static struct platform_driver ixp4xx_npe_driver = {
+ .driver = {
+ .name = "ixp4xx_npe",
+ .owner = THIS_MODULE,
+ },
+ .probe = npe_probe,
+ .remove = npe_remove,
+};
+
+static int __init init_npedriver(void)
+{
+ int ret;
+ if ((ret = misc_register(&ucode_dl_dev))){
+ printk(KERN_ERR "Failed to register misc device %d\n",
+ MICROCODE_MINOR);
+ return ret;
+ }
+ if ((ret = platform_driver_register(&ixp4xx_npe_driver)))
+ misc_deregister(&ucode_dl_dev);
+ else
+ printk(KERN_INFO IXNPE_VERSION " initialized\n");
+
+ return ret;
+
+}
+
+static void __exit finish_npedriver(void)
+{
+ misc_deregister(&ucode_dl_dev);
+ platform_driver_unregister(&ixp4xx_npe_driver);
+}
+
+module_init(init_npedriver);
+module_exit(finish_npedriver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Christian Hohnstaedt <chohnstaedt@innominate.com>");
+
+EXPORT_SYMBOL(get_npe_by_id);
Index: linux-2.6.18/include/asm-arm/arch-ixp4xx/ixp4xx-regs.h
===================================================================
--- linux-2.6.18.orig/include/asm-arm/arch-ixp4xx/ixp4xx-regs.h 2006-09-19 20:42:06.000000000 -0700
+++ linux-2.6.18/include/asm-arm/arch-ixp4xx/ixp4xx-regs.h 2006-10-17 05:26:01.000000000 -0700
@@ -22,6 +22,8 @@
#ifndef _ASM_ARM_IXP4XX_H_
#define _ASM_ARM_IXP4XX_H_
+#include "npe_regs.h"
+
/*
* IXP4xx Linux Memory Map:
*
Index: linux-2.6.18/include/asm-arm/arch-ixp4xx/npe_regs.h
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.18/include/asm-arm/arch-ixp4xx/npe_regs.h 2006-10-17 05:26:01.000000000 -0700
@@ -0,0 +1,82 @@
+#ifndef NPE_REGS_H
+#define NPE_REGS_H
+
+/* Execution Address */
+#define IX_NPEDL_REG_OFFSET_EXAD 0x00
+/* Execution Data */
+#define IX_NPEDL_REG_OFFSET_EXDATA 0x04
+/* Execution Control */
+#define IX_NPEDL_REG_OFFSET_EXCTL 0x08
+/* Execution Count */
+#define IX_NPEDL_REG_OFFSET_EXCT 0x0C
+/* Action Point 0 */
+#define IX_NPEDL_REG_OFFSET_AP0 0x10
+/* Action Point 1 */
+#define IX_NPEDL_REG_OFFSET_AP1 0x14
+/* Action Point 2 */
+#define IX_NPEDL_REG_OFFSET_AP2 0x18
+/* Action Point 3 */
+#define IX_NPEDL_REG_OFFSET_AP3 0x1C
+/* Watchpoint FIFO */
+#define IX_NPEDL_REG_OFFSET_WFIFO 0x20
+/* Watch Count */
+#define IX_NPEDL_REG_OFFSET_WC 0x24
+/* Profile Count */
+#define IX_NPEDL_REG_OFFSET_PROFCT 0x28
+
+/* Messaging Status */
+#define IX_NPEDL_REG_OFFSET_STAT 0x2C
+/* Messaging Control */
+#define IX_NPEDL_REG_OFFSET_CTL 0x30
+/* Mailbox Status */
+#define IX_NPEDL_REG_OFFSET_MBST 0x34
+/* messaging in/out FIFO */
+#define IX_NPEDL_REG_OFFSET_FIFO 0x38
+
+
+#define IX_NPEDL_MASK_ECS_DBG_REG_2_IF 0x00100000
+#define IX_NPEDL_MASK_ECS_DBG_REG_2_IE 0x00080000
+#define IX_NPEDL_MASK_ECS_REG_0_ACTIVE 0x80000000
+
+#define IX_NPEDL_EXCTL_CMD_NPE_STEP 0x01
+#define IX_NPEDL_EXCTL_CMD_NPE_START 0x02
+#define IX_NPEDL_EXCTL_CMD_NPE_STOP 0x03
+#define IX_NPEDL_EXCTL_CMD_NPE_CLR_PIPE 0x04
+#define IX_NPEDL_EXCTL_CMD_CLR_PROFILE_CNT 0x0C
+#define IX_NPEDL_EXCTL_CMD_RD_INS_MEM 0x10
+#define IX_NPEDL_EXCTL_CMD_WR_INS_MEM 0x11
+#define IX_NPEDL_EXCTL_CMD_RD_DATA_MEM 0x12
+#define IX_NPEDL_EXCTL_CMD_WR_DATA_MEM 0x13
+#define IX_NPEDL_EXCTL_CMD_RD_ECS_REG 0x14
+#define IX_NPEDL_EXCTL_CMD_WR_ECS_REG 0x15
+
+#define IX_NPEDL_EXCTL_STATUS_RUN 0x80000000
+#define IX_NPEDL_EXCTL_STATUS_STOP 0x40000000
+#define IX_NPEDL_EXCTL_STATUS_CLEAR 0x20000000
+
+#define IX_NPEDL_MASK_WFIFO_VALID 0x80000000
+#define IX_NPEDL_MASK_STAT_OFNE 0x00010000
+#define IX_NPEDL_MASK_STAT_IFNE 0x00080000
+
+#define IX_NPEDL_ECS_DBG_CTXT_REG_0 0x0C
+#define IX_NPEDL_ECS_PRI_1_CTXT_REG_0 0x04
+#define IX_NPEDL_ECS_PRI_2_CTXT_REG_0 0x08
+
+/* NPE control register bit definitions */
+#define IX_NPEMH_NPE_CTL_OFE (1 << 16) /**< OutFifoEnable */
+#define IX_NPEMH_NPE_CTL_IFE (1 << 17) /**< InFifoEnable */
+#define IX_NPEMH_NPE_CTL_OFEWE (1 << 24) /**< OutFifoEnableWriteEnable */
+#define IX_NPEMH_NPE_CTL_IFEWE (1 << 25) /**< InFifoEnableWriteEnable */
+
+/* NPE status register bit definitions */
+#define IX_NPEMH_NPE_STAT_OFNE (1 << 16) /**< OutFifoNotEmpty */
+#define IX_NPEMH_NPE_STAT_IFNF (1 << 17) /**< InFifoNotFull */
+#define IX_NPEMH_NPE_STAT_OFNF (1 << 18) /**< OutFifoNotFull */
+#define IX_NPEMH_NPE_STAT_IFNE (1 << 19) /**< InFifoNotEmpty */
+#define IX_NPEMH_NPE_STAT_MBINT (1 << 20) /**< Mailbox interrupt */
+#define IX_NPEMH_NPE_STAT_IFINT (1 << 21) /**< InFifo interrupt */
+#define IX_NPEMH_NPE_STAT_OFINT (1 << 22) /**< OutFifo interrupt */
+#define IX_NPEMH_NPE_STAT_WFINT (1 << 23) /**< WatchFifo interrupt */
+
+#endif
+
Index: linux-2.6.18/include/asm-arm/arch-ixp4xx/platform.h
===================================================================
--- linux-2.6.18.orig/include/asm-arm/arch-ixp4xx/platform.h 2006-10-17 05:26:00.000000000 -0700
+++ linux-2.6.18/include/asm-arm/arch-ixp4xx/platform.h 2006-10-17 05:40:03.000000000 -0700
@@ -86,6 +86,22 @@
unsigned long scl_pin;
};
+struct npe_plat_data {
+ const char *name;
+ int data_size;
+ int inst_size;
+ int id; /* Node ID */
+};
+
+struct mac_plat_info {
+ int npe_id; /* Node ID of the NPE for this port */
+ int port_id; /* Port ID for NPE-B @ ixp465 */
+ int eth_id; /* Physical ID */
+ int phy_id; /* ID of the connected PHY (PCB/platform dependent) */
+ int rxq_id; /* Queue ID of the RX-free q*/
+ int txq_id; /* Where to push the outgoing packets */
+};
+
struct sys_timer;
Index: linux-2.6.18/include/linux/ixp_npe.h
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.18/include/linux/ixp_npe.h 2006-10-17 05:26:01.000000000 -0700
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2006 Christian Hohnstaedt <chohnstaedt@innominate.com>
+ *
+ * This file is released under the GPLv2
+ */
+
+#ifndef NPE_DEVICE_H
+#define NPE_DEVICE_H
+
+#include <linux/miscdevice.h>
+#include <asm/hardware.h>
+
+struct npe_info {
+ struct resource *res;
+ void __iomem *addr;
+ struct npe_plat_data *plat;
+ u8 img_info[4];
+ u32 exec_count;
+ u32 ctx_reg2;
+};
+
+
+static inline void npe_reg_write(struct npe_info *npe, u32 reg, u32 val)
+{
+ *(volatile u32*)((u8*)(npe->addr) + reg) = val;
+}
+
+static inline u32 npe_reg_read(struct npe_info *npe, u32 reg)
+{
+ return *(volatile u32*)((u8*)(npe->addr) + reg);
+}
+
+static inline u32 npe_status(struct npe_info *npe)
+{
+ return npe_reg_read(npe, IX_NPEDL_REG_OFFSET_EXCTL);
+}
+
+/* ixNpeDlNpeMgrCommandIssue */
+static inline void npe_write_exctl(struct npe_info *npe, u32 cmd)
+{
+ npe_reg_write(npe, IX_NPEDL_REG_OFFSET_EXCTL, cmd);
+}
+/* ixNpeDlNpeMgrWriteCommandIssue */
+static inline void
+npe_write_cmd(struct npe_info *npe, u32 addr, u32 data, int cmd)
+{
+ npe_reg_write(npe, IX_NPEDL_REG_OFFSET_EXDATA, data);
+ npe_reg_write(npe, IX_NPEDL_REG_OFFSET_EXAD, addr);
+ npe_reg_write(npe, IX_NPEDL_REG_OFFSET_EXCTL, cmd);
+}
+/* ixNpeDlNpeMgrReadCommandIssue */
+static inline u32
+npe_read_cmd(struct npe_info *npe, u32 addr, int cmd)
+{
+ npe_reg_write(npe, IX_NPEDL_REG_OFFSET_EXAD, addr);
+ npe_reg_write(npe, IX_NPEDL_REG_OFFSET_EXCTL, cmd);
+ /* Intel reads the data twice - so do we... */
+ npe_reg_read(npe, IX_NPEDL_REG_OFFSET_EXDATA);
+ return npe_reg_read(npe, IX_NPEDL_REG_OFFSET_EXDATA);
+}
+
+/* ixNpeDlNpeMgrExecAccRegWrite */
+static inline void npe_write_ecs_reg(struct npe_info *npe, u32 addr, u32 data)
+{
+ npe_write_cmd(npe, addr, data, IX_NPEDL_EXCTL_CMD_WR_ECS_REG);
+}
+/* ixNpeDlNpeMgrExecAccRegRead */
+static inline u32 npe_read_ecs_reg(struct npe_info *npe, u32 addr)
+{
+ return npe_read_cmd(npe, addr, IX_NPEDL_EXCTL_CMD_RD_ECS_REG);
+}
+
+extern struct device *get_npe_by_id(int id);
+
+/* NPE Messages */
+extern int
+npe_mh_setportaddr(struct npe_info *npe, struct mac_plat_info *mp, u8 *macaddr);
+extern int
+npe_mh_disable_firewall(struct npe_info *npe, struct mac_plat_info *mp);
+extern int
+npe_mh_set_rxqid(struct npe_info *npe, struct mac_plat_info *mp, int qid);
+extern int
+npe_mh_npe_loopback_mode(struct npe_info *npe, struct mac_plat_info *mp, int enable);
+
+#endif
Index: linux-2.6.18/include/linux/ixp_qmgr.h
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.18/include/linux/ixp_qmgr.h 2006-10-17 05:26:01.000000000 -0700
@@ -0,0 +1,188 @@
+/*
+ * Copyright (C) 2006 Christian Hohnstaedt <chohnstaedt@innominate.com>
+ *
+ * This file is released under the GPLv2
+ */
+
+#ifndef IX_QMGR_H
+#define IX_QMGR_H
+
+#include <linux/skbuff.h>
+#include <linux/list.h>
+#include <linux/if_ether.h>
+#include <linux/spinlock.h>
+#include <linux/platform_device.h>
+#include <asm/atomic.h>
+
+/* All offsets are in 32bit words */
+#define QUE_LOW_STAT0 0x100 /* 4x Status of the 32 lower queues 0-31 */
+#define QUE_UO_STAT0 0x104 /* 2x Underflow/Overflow status bits*/
+#define QUE_UPP_STAT0 0x106 /* 2x Status of thew 32 upper queues 32-63 */
+#define INT0_SRC_SELREG0 0x108 /* 4x */
+#define QUE_IE_REG0 0x10c /* 2x */
+#define QUE_INT_REG0 0x10e /* 2x IRQ reg, write 1 to reset IRQ */
+
+#define IX_QMGR_QCFG_BASE 0x800
+#define IX_QMGR_QCFG_SIZE 0x40
+#define IX_QMGR_SRAM_SPACE (IX_QMGR_QCFG_BASE + IX_QMGR_QCFG_SIZE)
+
+#define MAX_QUEUES 32 /* first, we only support the lower 32 queues */
+#define MAX_NPES 3
+
+enum {
+ Q_IRQ_ID_E = 0, /* Queue Empty due to last read */
+ Q_IRQ_ID_NE, /* Queue Nearly Empty due to last read */
+ Q_IRQ_ID_NF, /* Queue Nearly Full due to last write */
+ Q_IRQ_ID_F, /* Queue Full due to last write */
+ Q_IRQ_ID_NOT_E, /* Queue Not Empty due to last write */
+ Q_IRQ_ID_NOT_NE, /* Queue Not Nearly Empty due to last write */
+ Q_IRQ_ID_NOT_NF, /* Queue Not Nearly Full due to last read */
+ Q_IRQ_ID_NOT_F /* Queue Not Full due to last read */
+};
+
+extern struct qm_queue *request_queue(int qid, int len);
+extern void release_queue(struct qm_queue *queue);
+extern int queue_set_irq_src(struct qm_queue *queue, int flag);
+extern void queue_set_watermarks(struct qm_queue *, unsigned ne, unsigned nf);
+extern int queue_len(struct qm_queue *queue);
+
+struct qm_qmgr;
+struct qm_queue;
+
+typedef void(*queue_cb)(struct qm_queue *);
+
+struct qm_queue {
+ int addr; /* word offset from IX_QMGR_SRAM_SPACE */
+ int len; /* size in words */
+ int id; /* Q Id */
+ u32 __iomem *acc_reg;
+ struct device *dev;
+ atomic_t use;
+ queue_cb irq_cb;
+ void *cb_data;
+};
+
+struct eth_ctl {
+ u32 next;
+#ifdef __ARMEB__
+ u16 buf_len;
+ u16 pkt_len;
+#else
+ u16 pkt_len;
+ u16 buf_len;
+#endif
+ u32 phys_addr;
+ u8 dest_id;
+ u8 src_id;
+ u16 flags;
+ u8 qos;
+ u8 padlen;
+ u16 vlan_tci;
+ u8 dest_mac[ETH_ALEN];
+ u8 src_mac[ETH_ALEN];
+};
+
+struct npe_cont {
+ union {
+ struct eth_ctl eth;
+ } ctl;
+ union {
+ struct sk_buff *skb;
+ void *ptr;
+ } h;
+ struct npe_cont *next;
+ struct npe_cont *virt;
+ dma_addr_t phys;
+};
+
+struct qm_qmgr {
+ u32 __iomem *addr;
+ struct resource *res;
+ struct qm_queue *queues[MAX_QUEUES];
+ rwlock_t lock;
+ struct npe_cont *pool;
+ struct dma_pool *dmapool;
+ int irq;
+};
+
+static inline void queue_write_cfg_reg(struct qm_queue *queue, u32 val)
+{
+ struct qm_qmgr *qmgr = dev_get_drvdata(queue->dev);
+ *(qmgr->addr + IX_QMGR_QCFG_BASE + queue->id) = val;
+}
+static inline u32 queue_read_cfg_reg(struct qm_queue *queue)
+{
+ struct qm_qmgr *qmgr = dev_get_drvdata(queue->dev);
+ return *(qmgr->addr + IX_QMGR_QCFG_BASE + queue->id);
+}
+
+static inline void queue_ack_irq(struct qm_queue *queue)
+{
+ struct qm_qmgr *qmgr = dev_get_drvdata(queue->dev);
+ *(qmgr->addr + QUE_INT_REG0) = 1 << queue->id;
+}
+
+static inline void queue_enable_irq(struct qm_queue *queue)
+{
+ struct qm_qmgr *qmgr = dev_get_drvdata(queue->dev);
+ *(qmgr->addr + QUE_IE_REG0) |= 1 << queue->id;
+}
+
+static inline void queue_disable_irq(struct qm_queue *queue)
+{
+ struct qm_qmgr *qmgr = dev_get_drvdata(queue->dev);
+ *(qmgr->addr + QUE_IE_REG0) &= ~(1 << queue->id);
+}
+
+static inline void queue_put_entry(struct qm_queue *queue, u32 entry)
+{
+ *(queue->acc_reg) = entry;
+}
+
+static inline struct npe_cont *qmgr_get_cont(struct qm_qmgr *qmgr)
+{
+ unsigned long flags;
+ struct npe_cont *cont;
+
+ if (!qmgr->pool)
+ return NULL;
+ write_lock_irqsave(&qmgr->lock, flags);
+ cont = qmgr->pool;
+ qmgr->pool = cont->next;
+ write_unlock_irqrestore(&qmgr->lock, flags);
+ return cont;
+}
+
+static inline void qmgr_return_cont(struct qm_qmgr *qmgr,struct npe_cont *cont)
+{
+ unsigned long flags;
+
+ write_lock_irqsave(&qmgr->lock, flags);
+ cont->next = qmgr->pool;
+ qmgr->pool = cont;
+ write_unlock_irqrestore(&qmgr->lock, flags);
+}
+
+static inline int queue_stat(struct qm_queue *queue)
+{
+ struct qm_qmgr *qmgr = dev_get_drvdata(queue->dev);
+ u32 reg = *(qmgr->addr + QUE_UO_STAT0 + (queue->id >> 4));
+ return (reg >> (queue->id & 0xf) << 1) & 3;
+}
+
+/* Prints the queue state, which is very, very helpfull for debugging */
+static inline void queue_state(struct qm_queue *queue)
+{
+ u32 val=0, lstat=0;
+ int offs;
+ struct qm_qmgr *qmgr = dev_get_drvdata(queue->dev);
+
+ offs = queue->id/8 + QUE_LOW_STAT0;
+ val = *(qmgr->addr + IX_QMGR_QCFG_BASE + queue->id);
+ lstat = (*(qmgr->addr + offs) >> ((queue->id % 8)*4)) & 0x0f;
+
+ printk("Qid[%02d]: Wptr=%4x, Rptr=%4x, diff=%4x, Stat:%x\n", queue->id,
+ val&0x7f, (val>>7) &0x7f, (val - (val >> 7)) & 0x7f, lstat);
+}
+
+#endif
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