e1000_param.c

COPE the first practical network coding scheme which is developped on click

			arg: { r: { min: MIN_RXD }}
		};
		struct e1000_desc_ring *rx_ring = &adapter->rx_ring;
		e1000_mac_type mac_type = adapter->hw.mac_type;
		opt.arg.r.max = mac_type < e1000_82544 ? MAX_RXD : MAX_82544_RXD;

		rx_ring->count = RxDescriptors[bd];
		e1000_validate_option(&rx_ring->count, &opt);
		E1000_ROUNDUP(rx_ring->count, REQ_RX_DESCRIPTOR_MULTIPLE);
	}
	{ /* Checksum Offload Enable/Disable */
		struct e1000_option opt = {
			type: enable_option,
			name: "Checksum Offload",
			err:  "defaulting to Enabled",
			def:  OPTION_ENABLED
		};
		
		int rx_csum = XsumRX[bd];
		e1000_validate_option(&rx_csum, &opt);
		adapter->rx_csum = rx_csum;
	}
	{ /* Flow Control */
		
		struct e1000_opt_list fc_list[] =
			{{ e1000_fc_none,    "Flow Control Disabled" },
			 { e1000_fc_rx_pause,"Flow Control Receive Only" },
			 { e1000_fc_tx_pause,"Flow Control Transmit Only" },
			 { e1000_fc_full,    "Flow Control Enabled" },
			 { e1000_fc_default, "Flow Control Hardware Default" }};

		struct e1000_option opt = {
			type: list_option,
			name: "Flow Control",
			err:  "reading default settings from EEPROM",
			def:  e1000_fc_none, /* RTM, was e1000_fc_default */
			arg: { l: { nr: ARRAY_SIZE(fc_list), p: fc_list }}
		};

		int fc = FlowControl[bd];
		e1000_validate_option(&fc, &opt);
		adapter->hw.fc = adapter->hw.original_fc = fc;
	}
	{ /* Transmit Interrupt Delay */
		char *tidv = "using default of " __MODULE_STRING(DEFAULT_TIDV);
		struct e1000_option opt = {
			type: range_option,
			name: "Transmit Interrupt Delay",
			arg: { r: { min: MIN_TXDELAY, max: MAX_TXDELAY }}
		};
		opt.def = DEFAULT_TIDV;
		opt.err = tidv;

		adapter->tx_int_delay = TxIntDelay[bd];
		e1000_validate_option(&adapter->tx_int_delay, &opt);
	}
	{ /* Transmit Absolute Interrupt Delay */
		char *tadv = "using default of " __MODULE_STRING(DEFAULT_TADV);
		struct e1000_option opt = {
			type: range_option,
			name: "Transmit Absolute Interrupt Delay",
			arg: { r: { min: MIN_TXABSDELAY, max: MAX_TXABSDELAY }}
		};
		opt.def = DEFAULT_TADV;
		opt.err = tadv;

		adapter->tx_abs_int_delay = TxAbsIntDelay[bd];
		e1000_validate_option(&adapter->tx_abs_int_delay, &opt);
	}
	{ /* Receive Interrupt Delay */
		char *rdtr = "using default of " __MODULE_STRING(DEFAULT_RDTR);
		char *rdtr_82544 = "using default of "
				   __MODULE_STRING(DEFAULT_RDTR_82544);
		struct e1000_option opt = {
			type: range_option,
			name: "Receive Interrupt Delay",
			arg: { r: { min: MIN_RXDELAY, max: MAX_RXDELAY }}
		};
		e1000_mac_type mac_type = adapter->hw.mac_type;
		opt.def = mac_type > e1000_82544 ? DEFAULT_RDTR : 0;
		opt.err = mac_type > e1000_82544 ? rdtr : rdtr_82544;

		adapter->rx_int_delay = RxIntDelay[bd];
		e1000_validate_option(&adapter->rx_int_delay, &opt);
	}
	{ /* Receive Absolute Interrupt Delay */
		char *radv = "using default of " __MODULE_STRING(DEFAULT_RADV);
		struct e1000_option opt = {
			type: range_option,
			name: "Receive Absolute Interrupt Delay",
			arg: { r: { min: MIN_RXABSDELAY, max: MAX_RXABSDELAY }}
		};
		opt.def = DEFAULT_RADV;
		opt.err = radv;

		adapter->rx_abs_int_delay = RxAbsIntDelay[bd];
		e1000_validate_option(&adapter->rx_abs_int_delay, &opt);
	}
	
	switch(adapter->hw.media_type) {
	case e1000_media_type_fiber:
		e1000_check_fiber_options(adapter);
		break;
	case e1000_media_type_copper:
		e1000_check_copper_options(adapter);
		break;
	default:
		BUG();
	}
}

/**
 * e1000_check_fiber_options - Range Checking for Link Options, Fiber Version
 * @adapter: board private structure
 *
 * Handles speed and duplex options on fiber adapters
 **/

static void __devinit
e1000_check_fiber_options(struct e1000_adapter *adapter)
{
	int bd = adapter->bd_number;
	bd = bd > E1000_MAX_NIC ? E1000_MAX_NIC : bd;

	if((Speed[bd] != OPTION_UNSET)) {
		printk(KERN_INFO "Speed not valid for fiber adapters, "
		       "parameter ignored\n");
	}
	if((Duplex[bd] != OPTION_UNSET)) {
		printk(KERN_INFO "Duplex not valid for fiber adapters, "
		       "parameter ignored\n");
	}
	if((AutoNeg[bd] != OPTION_UNSET)) {
		printk(KERN_INFO "AutoNeg not valid for fiber adapters, "
		       "parameter ignored\n");
	}
}

/**
 * e1000_check_copper_options - Range Checking for Link Options, Copper Version
 * @adapter: board private structure
 *
 * Handles speed and duplex options on copper adapters
 **/

static void __devinit
e1000_check_copper_options(struct e1000_adapter *adapter)
{
	int speed, dplx;
	int bd = adapter->bd_number;
	bd = bd > E1000_MAX_NIC ? E1000_MAX_NIC : bd;

	{ /* Speed */
		struct e1000_opt_list speed_list[] = {{          0, "" },
		                                      {   SPEED_10, "" },
		                                      {  SPEED_100, "" },
		                                      { SPEED_1000, "" }};
		struct e1000_option opt = {
			type: list_option,
			name: "Speed",
			err:  "parameter ignored",
			def:  0,
			arg: { l: { nr: ARRAY_SIZE(speed_list), p: speed_list }}
		};

		speed = Speed[bd];
		e1000_validate_option(&speed, &opt);
	}
	{ /* Duplex */
		struct e1000_opt_list dplx_list[] = {{           0, "" },
		                                     { HALF_DUPLEX, "" },
		                                     { FULL_DUPLEX, "" }};
		struct e1000_option opt = {
			type: list_option,
			name: "Duplex",
			err:  "parameter ignored",
			def:  0,
			arg: { l: { nr: ARRAY_SIZE(dplx_list), p: dplx_list }}
		};

		dplx = Duplex[bd];
		e1000_validate_option(&dplx, &opt);
	}

	if(AutoNeg[bd] != OPTION_UNSET && (speed != 0 || dplx != 0)) {
		printk(KERN_INFO
		       "AutoNeg specified along with Speed or Duplex, "
		       "parameter ignored\n");
		adapter->hw.autoneg_advertised = AUTONEG_ADV_DEFAULT;
	} else { /* Autoneg */
		struct e1000_opt_list an_list[] =
			#define AA "AutoNeg advertising "
			{{ 0x01, AA "10/HD" },
			 { 0x02, AA "10/FD" },
			 { 0x03, AA "10/FD, 10/HD" },
			 { 0x04, AA "100/HD" },
			 { 0x05, AA "100/HD, 10/HD" },
			 { 0x06, AA "100/HD, 10/FD" },
			 { 0x07, AA "100/HD, 10/FD, 10/HD" },
			 { 0x08, AA "100/FD" },
			 { 0x09, AA "100/FD, 10/HD" },
			 { 0x0a, AA "100/FD, 10/FD" },
			 { 0x0b, AA "100/FD, 10/FD, 10/HD" },
			 { 0x0c, AA "100/FD, 100/HD" },
			 { 0x0d, AA "100/FD, 100/HD, 10/HD" },
			 { 0x0e, AA "100/FD, 100/HD, 10/FD" },
			 { 0x0f, AA "100/FD, 100/HD, 10/FD, 10/HD" },
			 { 0x20, AA "1000/FD" },
			 { 0x21, AA "1000/FD, 10/HD" },
			 { 0x22, AA "1000/FD, 10/FD" },
			 { 0x23, AA "1000/FD, 10/FD, 10/HD" },
			 { 0x24, AA "1000/FD, 100/HD" },
			 { 0x25, AA "1000/FD, 100/HD, 10/HD" },
			 { 0x26, AA "1000/FD, 100/HD, 10/FD" },
			 { 0x27, AA "1000/FD, 100/HD, 10/FD, 10/HD" },
			 { 0x28, AA "1000/FD, 100/FD" },
			 { 0x29, AA "1000/FD, 100/FD, 10/HD" },
			 { 0x2a, AA "1000/FD, 100/FD, 10/FD" },
			 { 0x2b, AA "1000/FD, 100/FD, 10/FD, 10/HD" },
			 { 0x2c, AA "1000/FD, 100/FD, 100/HD" },
			 { 0x2d, AA "1000/FD, 100/FD, 100/HD, 10/HD" },
			 { 0x2e, AA "1000/FD, 100/FD, 100/HD, 10/FD" },
			 { 0x2f, AA "1000/FD, 100/FD, 100/HD, 10/FD, 10/HD" }};

		struct e1000_option opt = {
			type: list_option,
			name: "AutoNeg",
			err:  "parameter ignored",
			def:  AUTONEG_ADV_DEFAULT,
			arg: { l: { nr: ARRAY_SIZE(an_list), p: an_list }}
		};

		int an = AutoNeg[bd];
		e1000_validate_option(&an, &opt);
		adapter->hw.autoneg_advertised = an;
	}

	switch (speed + dplx) {
	case 0:
		adapter->hw.autoneg = 1;
		if(Speed[bd] != OPTION_UNSET || Duplex[bd] != OPTION_UNSET)
			printk(KERN_INFO
			       "Speed and duplex autonegotiation enabled\n");
		break;
	case HALF_DUPLEX:
		printk(KERN_INFO "Half Duplex specified without Speed\n");
		printk(KERN_INFO "Using Autonegotiation at Half Duplex only\n");
		adapter->hw.autoneg = 1;
		adapter->hw.autoneg_advertised = ADVERTISE_10_HALF | 
		                                 ADVERTISE_100_HALF;
		break;
	case FULL_DUPLEX:
		printk(KERN_INFO "Full Duplex specified without Speed\n");
		printk(KERN_INFO "Using Autonegotiation at Full Duplex only\n");
		adapter->hw.autoneg = 1;
		adapter->hw.autoneg_advertised = ADVERTISE_10_FULL |
		                                 ADVERTISE_100_FULL |
		                                 ADVERTISE_1000_FULL;
		break;
	case SPEED_10:
		printk(KERN_INFO "10 Mbps Speed specified without Duplex\n");
		printk(KERN_INFO "Using Autonegotiation at 10 Mbps only\n");
		adapter->hw.autoneg = 1;
		adapter->hw.autoneg_advertised = ADVERTISE_10_HALF |
		                                 ADVERTISE_10_FULL;
		break;
	case SPEED_10 + HALF_DUPLEX:
		printk(KERN_INFO "Forcing to 10 Mbps Half Duplex\n");
		adapter->hw.autoneg = 0;
		adapter->hw.forced_speed_duplex = e1000_10_half;
		adapter->hw.autoneg_advertised = 0;
		break;
	case SPEED_10 + FULL_DUPLEX:
		printk(KERN_INFO "Forcing to 10 Mbps Full Duplex\n");
		adapter->hw.autoneg = 0;
		adapter->hw.forced_speed_duplex = e1000_10_full;
		adapter->hw.autoneg_advertised = 0;
		break;
	case SPEED_100:
		printk(KERN_INFO "100 Mbps Speed specified without Duplex\n");
		printk(KERN_INFO "Using Autonegotiation at 100 Mbps only\n");
		adapter->hw.autoneg = 1;
		adapter->hw.autoneg_advertised = ADVERTISE_100_HALF |
		                                 ADVERTISE_100_FULL;
		break;
	case SPEED_100 + HALF_DUPLEX:
		printk(KERN_INFO "Forcing to 100 Mbps Half Duplex\n");
		adapter->hw.autoneg = 0;
		adapter->hw.forced_speed_duplex = e1000_100_half;
		adapter->hw.autoneg_advertised = 0;
		break;
	case SPEED_100 + FULL_DUPLEX:
		printk(KERN_INFO "Forcing to 100 Mbps Full Duplex\n");
		adapter->hw.autoneg = 0;
		adapter->hw.forced_speed_duplex = e1000_100_full;
		adapter->hw.autoneg_advertised = 0;
		break;
	case SPEED_1000:
		printk(KERN_INFO "1000 Mbps Speed specified without Duplex\n");
		printk(KERN_INFO
		       "Using Autonegotiation at 1000 Mbps Full Duplex only\n");
		adapter->hw.autoneg = 1;
		adapter->hw.autoneg_advertised = ADVERTISE_1000_FULL;
		break;
	case SPEED_1000 + HALF_DUPLEX:
		printk(KERN_INFO "Half Duplex is not supported at 1000 Mbps\n");
		printk(KERN_INFO
		       "Using Autonegotiation at 1000 Mbps Full Duplex only\n");
		adapter->hw.autoneg = 1;
		adapter->hw.autoneg_advertised = ADVERTISE_1000_FULL;
		break;
	case SPEED_1000 + FULL_DUPLEX:
		printk(KERN_INFO
		       "Using Autonegotiation at 1000 Mbps Full Duplex only\n");
		adapter->hw.autoneg = 1;
		adapter->hw.autoneg_advertised = ADVERTISE_1000_FULL;
		break;
	default:
		BUG();
	}

	/* Speed, AutoNeg and MDI/MDI-X must all play nice */
	if (e1000_validate_mdi_setting(&(adapter->hw)) < 0) {
		printk(KERN_INFO "Speed, AutoNeg and MDI-X specifications are "
		       "incompatible. Setting MDI-X to a compatible value.\n");
	}
}