// SPDX-License-Identifier: GPL-2.0 /* Copyright(c) 1999 - 2006 Intel Corporation. */ #include "e1000.h" /* This is the only thing that needs to be changed to adjust the * maximum number of ports that the driver can manage. */ #define E1000_MAX_NIC … #define OPTION_UNSET … #define OPTION_DISABLED … #define OPTION_ENABLED … /* 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 E1000_PARAM_INIT … #define E1000_PARAM(X, desc) … /* Transmit Descriptor Count * * Valid Range: 80-256 for 82542 and 82543 gigabit ethernet controllers * Valid Range: 80-4096 for 82544 and newer * * Default Value: 256 */ E1000_PARAM(TxDescriptors, "Number of transmit descriptors"); /* Receive Descriptor Count * * Valid Range: 80-256 for 82542 and 82543 gigabit ethernet controllers * Valid Range: 80-4096 for 82544 and newer * * Default Value: 256 */ E1000_PARAM(RxDescriptors, "Number of receive descriptors"); /* User Specified Speed Override * * Valid Range: 0, 10, 100, 1000 * - 0 - auto-negotiate at all supported speeds * - 10 - only link at 10 Mbps * - 100 - only link at 100 Mbps * - 1000 - only link at 1000 Mbps * * Default Value: 0 */ E1000_PARAM(Speed, "Speed setting"); /* User Specified Duplex Override * * Valid Range: 0-2 * - 0 - auto-negotiate for duplex * - 1 - only link at half duplex * - 2 - only link at full duplex * * Default Value: 0 */ E1000_PARAM(Duplex, "Duplex setting"); /* Auto-negotiation Advertisement Override * * Valid Range: 0x01-0x0F, 0x20-0x2F (copper); 0x20 (fiber) * * The AutoNeg value is a bit mask describing which speed and duplex * combinations should be advertised during auto-negotiation. * The supported speed and duplex modes are listed below * * Bit 7 6 5 4 3 2 1 0 * Speed (Mbps) N/A N/A 1000 N/A 100 100 10 10 * Duplex Full Full Half Full Half * * Default Value: 0x2F (copper); 0x20 (fiber) */ E1000_PARAM(AutoNeg, "Advertised auto-negotiation setting"); #define AUTONEG_ADV_DEFAULT … /* User Specified Flow Control Override * * Valid Range: 0-3 * - 0 - No Flow Control * - 1 - Rx only, respond to PAUSE frames but do not generate them * - 2 - Tx only, generate PAUSE frames but ignore them on receive * - 3 - Full Flow Control Support * * Default Value: Read flow control settings from the EEPROM */ E1000_PARAM(FlowControl, "Flow Control setting"); /* XsumRX - Receive Checksum Offload Enable/Disable * * Valid Range: 0, 1 * - 0 - disables all checksum offload * - 1 - enables receive IP/TCP/UDP checksum offload * on 82543 and newer -based NICs * * Default Value: 1 */ E1000_PARAM(XsumRX, "Disable or enable Receive Checksum offload"); /* Transmit Interrupt Delay in units of 1.024 microseconds * Tx interrupt delay needs to typically be set to something non zero * * Valid Range: 0-65535 */ E1000_PARAM(TxIntDelay, "Transmit Interrupt Delay"); #define DEFAULT_TIDV … #define MAX_TXDELAY … #define MIN_TXDELAY … /* Transmit Absolute Interrupt Delay in units of 1.024 microseconds * * Valid Range: 0-65535 */ E1000_PARAM(TxAbsIntDelay, "Transmit Absolute Interrupt Delay"); #define DEFAULT_TADV … #define MAX_TXABSDELAY … #define MIN_TXABSDELAY … /* Receive Interrupt Delay in units of 1.024 microseconds * hardware will likely hang if you set this to anything but zero. * * Valid Range: 0-65535 */ E1000_PARAM(RxIntDelay, "Receive Interrupt Delay"); #define DEFAULT_RDTR … #define MAX_RXDELAY … #define MIN_RXDELAY … /* Receive Absolute Interrupt Delay in units of 1.024 microseconds * * Valid Range: 0-65535 */ E1000_PARAM(RxAbsIntDelay, "Receive Absolute Interrupt Delay"); #define DEFAULT_RADV … #define MAX_RXABSDELAY … #define MIN_RXABSDELAY … /* Interrupt Throttle Rate (interrupts/sec) * * Valid Range: 100-100000 (0=off, 1=dynamic, 3=dynamic conservative) */ E1000_PARAM(InterruptThrottleRate, "Interrupt Throttling Rate"); #define DEFAULT_ITR … #define MAX_ITR … #define MIN_ITR … /* Enable Smart Power Down of the PHY * * Valid Range: 0, 1 * * Default Value: 0 (disabled) */ E1000_PARAM(SmartPowerDownEnable, "Enable PHY smart power down"); struct e1000_option { … }; static int e1000_validate_option(unsigned int *value, const struct e1000_option *opt, struct e1000_adapter *adapter) { … } static void e1000_check_fiber_options(struct e1000_adapter *adapter); static void e1000_check_copper_options(struct e1000_adapter *adapter); /** * e1000_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 e1000_check_options(struct e1000_adapter *adapter) { … } /** * 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 e1000_check_fiber_options(struct e1000_adapter *adapter) { … } /** * 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 e1000_check_copper_options(struct e1000_adapter *adapter) { … }
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