[netdrvr] atlx: code movement: move atl1 parameter parsing

Move some code from atlx.c to atl1.c to prevent build conflict with
the upcoming atl2 code.  No changes, just movement.

Signed-off-by: Chris Snook <csnook@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 138 insertions, 0 deletions

diff --git a/drivers/net/atlx/atl1.c b/drivers/net/atlx/atl1.c
index 5586fc624688..0afe522b8f7b 100644
--- a/drivers/net/atlx/atl1.c
+++ b/drivers/net/atlx/atl1.c
@@ -91,6 +91,144 @@
 #include "atlx.c"
 
 /*
+ * This is the only thing that needs to be changed to adjust the
+ * maximum number of ports that the driver can manage.
+ */
+#define ATL1_MAX_NIC 4
+
+#define OPTION_UNSET    -1
+#define OPTION_DISABLED 0
+#define OPTION_ENABLED  1
+
+#define ATL1_PARAM_INIT { [0 ... ATL1_MAX_NIC] = OPTION_UNSET }
+
+/*
+ * Interrupt Moderate Timer in units of 2 us
+ *
+ * Valid Range: 10-65535
+ *
+ * Default Value: 100 (200us)
+ */
+static int __devinitdata int_mod_timer[ATL1_MAX_NIC+1] = ATL1_PARAM_INIT;
+static int num_int_mod_timer;
+module_param_array_named(int_mod_timer, int_mod_timer, int,
+        &num_int_mod_timer, 0);
+MODULE_PARM_DESC(int_mod_timer, "Interrupt moderator timer");
+
+#define DEFAULT_INT_MOD_CNT     100     /* 200us */
+#define MAX_INT_MOD_CNT         65000
+#define MIN_INT_MOD_CNT         50
+
+struct atl1_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 atl1_opt_list {
+                                int i;
+                                char *str;
+                        } *p;
+                } l;
+        } arg;
+};
+
+static int __devinit atl1_validate_option(int *value, struct atl1_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 atl1_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:
+                break;
+        }
+
+        dev_info(&pdev->dev, "invalid %s specified (%i) %s\n",
+                opt->name, *value, opt->err);
+        *value = opt->def;
+        return -1;
+}
+
+/*
+ * atl1_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 atl1_check_options(struct atl1_adapter *adapter)
+{
+        struct pci_dev *pdev = adapter->pdev;
+        int bd = adapter->bd_number;
+        if (bd >= ATL1_MAX_NIC) {
+                dev_notice(&pdev->dev, "no configuration for board#%i\n", bd);
+                dev_notice(&pdev->dev, "using defaults for all values\n");
+        }
+        {                       /* Interrupt Moderate Timer */
+                struct atl1_option opt = {
+                        .type = range_option,
+                        .name = "Interrupt Moderator Timer",
+                        .err = "using default of "
+                                __MODULE_STRING(DEFAULT_INT_MOD_CNT),
+                        .def = DEFAULT_INT_MOD_CNT,
+                        .arg = {.r = {.min = MIN_INT_MOD_CNT,
+                                        .max = MAX_INT_MOD_CNT} }
+                };
+                int val;
+                if (num_int_mod_timer > bd) {
+                        val = int_mod_timer[bd];
+                        atl1_validate_option(&val, &opt, pdev);
+                        adapter->imt = (u16) val;
+                } else
+                        adapter->imt = (u16) (opt.def);
+        }
+}
+
+/*
  * atl1_pci_tbl - PCI Device ID Table
  */
 static const struct pci_device_id atl1_pci_tbl[] = {