atl1e: Atheros L1E Gigabit Ethernet driver

Full patch for the Atheros L1E Gigabit Ethernet driver.
Supportring AR8121, AR8113 and AR8114

Signed-off-by: Jie Yang <jie.yang @atheros.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 263 insertions, 0 deletions

diff --git a/drivers/net/atl1e/atl1e_param.c b/drivers/net/atl1e/atl1e_param.c
new file mode 100644
index 00000000000..f72abb34b0c
--- /dev/null
+++ b/drivers/net/atl1e/atl1e_param.c
@@ -0,0 +1,263 @@
+/*
+ * Copyright(c) 2007 Atheros Corporation. All rights reserved.
+ *
+ * Derived from Intel e1000 driver
+ * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#include <linux/netdevice.h>
+
+#include "atl1e.h"
+
+/* This is the only thing that needs to be changed to adjust the
+ * maximum number of ports that the driver can manage.
+ */
+
+#define ATL1E_MAX_NIC 32
+
+#define OPTION_UNSET    -1
+#define OPTION_DISABLED 0
+#define OPTION_ENABLED  1
+
+/* All parameters are treated the same, as an integer array of values.
+ * This macro just reduces the need to repeat the same declaration code
+ * over and over (plus this helps to avoid typo bugs).
+ */
+#define ATL1E_PARAM_INIT { [0 ... ATL1E_MAX_NIC] = OPTION_UNSET }
+
+#define ATL1E_PARAM(x, desc) \
+        static int __devinitdata x[ATL1E_MAX_NIC + 1] = ATL1E_PARAM_INIT; \
+        static int num_##x; \
+        module_param_array_named(x, x, int, &num_##x, 0); \
+        MODULE_PARM_DESC(x, desc);
+
+/* Transmit Memory count
+ *
+ * Valid Range: 64-2048
+ *
+ * Default Value: 128
+ */
+#define ATL1E_MIN_TX_DESC_CNT           32
+#define ATL1E_MAX_TX_DESC_CNT           1020
+#define ATL1E_DEFAULT_TX_DESC_CNT       128
+ATL1E_PARAM(tx_desc_cnt, "Transmit description count");
+
+/* Receive Memory Block Count
+ *
+ * Valid Range: 16-512
+ *
+ * Default Value: 128
+ */
+#define ATL1E_MIN_RX_MEM_SIZE           8    /* 8KB   */
+#define ATL1E_MAX_RX_MEM_SIZE           1024 /* 1MB   */
+#define ATL1E_DEFAULT_RX_MEM_SIZE       256  /* 128KB */
+ATL1E_PARAM(rx_mem_size, "memory size of rx buffer(KB)");
+
+/* User Specified MediaType Override
+ *
+ * Valid Range: 0-5
+ *  - 0    - auto-negotiate at all supported speeds
+ *  - 1    - only link at 100Mbps Full Duplex
+ *  - 2    - only link at 100Mbps Half Duplex
+ *  - 3    - only link at 10Mbps Full Duplex
+ *  - 4    - only link at 10Mbps Half Duplex
+ * Default Value: 0
+ */
+
+ATL1E_PARAM(media_type, "MediaType Select");
+
+/* Interrupt Moderate Timer in units of 2 us
+ *
+ * Valid Range: 10-65535
+ *
+ * Default Value: 45000(90ms)
+ */
+#define INT_MOD_DEFAULT_CNT             100 /* 200us */
+#define INT_MOD_MAX_CNT                 65000
+#define INT_MOD_MIN_CNT                 50
+ATL1E_PARAM(int_mod_timer, "Interrupt Moderator Timer");
+
+#define AUTONEG_ADV_DEFAULT  0x2F
+#define AUTONEG_ADV_MASK     0x2F
+#define FLOW_CONTROL_DEFAULT FLOW_CONTROL_FULL
+
+#define FLASH_VENDOR_DEFAULT    0
+#define FLASH_VENDOR_MIN        0
+#define FLASH_VENDOR_MAX        2
+
+struct atl1e_option {
+        enum { enable_option, range_option, list_option } type;
+        char *name;
+        char *err;
+        int  def;
+        union {
+                struct { /* range_option info */
+                        int min;
+                        int max;
+                } r;
+                struct { /* list_option info */
+                        int nr;
+                        struct atl1e_opt_list { int i; char *str; } *p;
+                } l;
+        } arg;
+};
+
+static int __devinit atl1e_validate_option(int *value, struct atl1e_option *opt, struct pci_dev *pdev)
+{
+        if (*value == OPTION_UNSET) {
+                *value = opt->def;
+                return 0;
+        }
+
+        switch (opt->type) {
+        case enable_option:
+                switch (*value) {
+                case OPTION_ENABLED:
+                        dev_info(&pdev->dev, "%s Enabled\n", opt->name);
+                        return 0;
+                case OPTION_DISABLED:
+                        dev_info(&pdev->dev, "%s Disabled\n", opt->name);
+                        return 0;
+                }
+                break;
+        case range_option:
+                if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) {
+                        dev_info(&pdev->dev, "%s set to %i\n", opt->name, *value);
+                        return 0;
+                }
+                break;
+        case list_option:{
+                        int i;
+                        struct atl1e_opt_list *ent;
+
+                        for (i = 0; i < opt->arg.l.nr; i++) {
+                                ent = &opt->arg.l.p[i];
+                                if (*value == ent->i) {
+                                        if (ent->str[0] != '\0')
+                                                dev_info(&pdev->dev, "%s\n",
+                                                        ent->str);
+                                        return 0;
+                                }
+                        }
+                        break;
+                }
+        default:
+                BUG();
+        }
+
+        dev_info(&pdev->dev, "Invalid %s specified (%i) %s\n",
+                        opt->name, *value, opt->err);
+        *value = opt->def;
+        return -1;
+}
+
+/*
+ * atl1e_check_options - Range Checking for Command Line Parameters
+ * @adapter: board private structure
+ *
+ * This routine checks all command line parameters for valid user
+ * input.  If an invalid value is given, or if no user specified
+ * value exists, a default value is used.  The final value is stored
+ * in a variable in the adapter structure.
+ */
+void __devinit atl1e_check_options(struct atl1e_adapter *adapter)
+{
+        struct pci_dev *pdev = adapter->pdev;
+        int bd = adapter->bd_number;
+        if (bd >= ATL1E_MAX_NIC) {
+                dev_notice(&pdev->dev, "no configuration for board #%i\n", bd);
+                dev_notice(&pdev->dev, "Using defaults for all values\n");
+        }
+
+        {               /* Transmit Ring Size */
+                struct atl1e_option opt = {
+                        .type = range_option,
+                        .name = "Transmit Ddescription Count",
+                        .err  = "using default of "
+                                __MODULE_STRING(ATL1E_DEFAULT_TX_DESC_CNT),
+                        .def  = ATL1E_DEFAULT_TX_DESC_CNT,
+                        .arg  = { .r = { .min = ATL1E_MIN_TX_DESC_CNT,
+                                         .max = ATL1E_MAX_TX_DESC_CNT} }
+                };
+                int val;
+                if (num_tx_desc_cnt > bd) {
+                        val = tx_desc_cnt[bd];
+                        atl1e_validate_option(&val, &opt, pdev);
+                        adapter->tx_ring.count = (u16) val & 0xFFFC;
+                } else
+                        adapter->tx_ring.count = (u16)opt.def;
+        }
+
+        {               /* Receive Memory Block Count */
+                struct atl1e_option opt = {
+                        .type = range_option,
+                        .name = "Memory size of rx buffer(KB)",
+                        .err  = "using default of "
+                                __MODULE_STRING(ATL1E_DEFAULT_RX_MEM_SIZE),
+                        .def  = ATL1E_DEFAULT_RX_MEM_SIZE,
+                        .arg  = { .r = { .min = ATL1E_MIN_RX_MEM_SIZE,
+                                         .max = ATL1E_MAX_RX_MEM_SIZE} }
+                };
+                int val;
+                if (num_rx_mem_size > bd) {
+                        val = rx_mem_size[bd];
+                        atl1e_validate_option(&val, &opt, pdev);
+                        adapter->rx_ring.page_size = (u32)val * 1024;
+                } else {
+                        adapter->rx_ring.page_size = (u32)opt.def * 1024;
+                }
+        }
+
+        {               /* Interrupt Moderate Timer */
+                struct atl1e_option opt = {
+                        .type = range_option,
+                        .name = "Interrupt Moderate Timer",
+                        .err  = "using default of "
+                                __MODULE_STRING(INT_MOD_DEFAULT_CNT),
+                        .def  = INT_MOD_DEFAULT_CNT,
+                        .arg  = { .r = { .min = INT_MOD_MIN_CNT,
+                                         .max = INT_MOD_MAX_CNT} }
+                } ;
+                int val;
+                if (num_int_mod_timer > bd) {
+                        val = int_mod_timer[bd];
+                        atl1e_validate_option(&val, &opt, pdev);
+                        adapter->hw.imt = (u16) val;
+                } else
+                        adapter->hw.imt = (u16)(opt.def);
+        }
+
+        {               /* MediaType */
+                struct atl1e_option opt = {
+                        .type = range_option,
+                        .name = "Speed/Duplex Selection",
+                        .err  = "using default of "
+                                __MODULE_STRING(MEDIA_TYPE_AUTO_SENSOR),
+                        .def  = MEDIA_TYPE_AUTO_SENSOR,
+                        .arg  = { .r = { .min = MEDIA_TYPE_AUTO_SENSOR,
+                                         .max = MEDIA_TYPE_10M_HALF} }
+                } ;
+                int val;
+                if (num_media_type > bd) {
+                        val = media_type[bd];
+                        atl1e_validate_option(&val, &opt, pdev);
+                        adapter->hw.media_type = (u16) val;
+                } else
+                        adapter->hw.media_type = (u16)(opt.def);
+
+        }
+}