99f87b2338
When jumbo frames are enabled, the Linux ixgbe physical function driver will disable the virtual function's receive datapath by default, and will enable it only if the virtual function negotiates API version 1.1 (or higher) and explicitly selects an MTU. Signed-off-by: Michael Brown <mcb30@ipxe.org>
110 lines
2.9 KiB
C
110 lines
2.9 KiB
C
#ifndef _INTELVF_H
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#define _INTELVF_H
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/** @file
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*
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* Intel 10/100/1000 virtual function network card driver
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*
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*/
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FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
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#include "intel.h"
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/** Intel VF BAR size */
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#define INTELVF_BAR_SIZE ( 16 * 1024 )
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/** Mailbox Control Register */
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#define INTELVF_MBCTRL 0x0c40UL
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#define INTELVF_MBCTRL_REQ 0x00000001UL /**< Request for PF ready */
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#define INTELVF_MBCTRL_ACK 0x00000002UL /**< PF message received */
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#define INTELVF_MBCTRL_VFU 0x00000004UL /**< Buffer taken by VF */
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#define INTELVF_MBCTRL_PFU 0x00000008UL /**< Buffer taken to PF */
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#define INTELVF_MBCTRL_PFSTS 0x00000010UL /**< PF wrote a message */
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#define INTELVF_MBCTRL_PFACK 0x00000020UL /**< PF acknowledged message */
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#define INTELVF_MBCTRL_RSTI 0x00000040UL /**< PF reset in progress */
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#define INTELVF_MBCTRL_RSTD 0x00000080UL /**< PF reset complete */
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/** Mailbox Memory Register Base */
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#define INTELVF_MBMEM 0x0800UL
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/** Reset mailbox message */
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#define INTELVF_MSG_TYPE_RESET 0x00000001UL
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/** Set MAC address mailbox message */
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#define INTELVF_MSG_TYPE_SET_MAC 0x00000002UL
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/** Set MTU mailbox message */
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#define INTELVF_MSG_TYPE_SET_MTU 0x00000005UL
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/** Control ("ping") mailbox message */
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#define INTELVF_MSG_TYPE_CONTROL 0x00000100UL
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/** Message type mask */
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#define INTELVF_MSG_TYPE_MASK 0x0000ffffUL
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/** Message NACK flag */
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#define INTELVF_MSG_NACK 0x40000000UL
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/** Message ACK flag */
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#define INTELVF_MSG_ACK 0x80000000UL
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/** Message is a response */
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#define INTELVF_MSG_RESPONSE ( INTELVF_MSG_ACK | INTELVF_MSG_NACK )
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/** MAC address mailbox message */
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struct intelvf_msg_mac {
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/** Message header */
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uint32_t hdr;
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/** MAC address */
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uint8_t mac[ETH_ALEN];
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/** Alignment padding */
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uint8_t reserved[ (-ETH_ALEN) & 0x3 ];
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} __attribute__ (( packed ));
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/** Version number mailbox message */
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struct intelvf_msg_version {
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/** Message header */
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uint32_t hdr;
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/** API version */
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uint32_t version;
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} __attribute__ (( packed ));
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/** MTU mailbox message */
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struct intelvf_msg_mtu {
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/** Message header */
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uint32_t hdr;
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/** Maximum packet size */
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uint32_t mtu;
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} __attribute__ (( packed ));
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/** Mailbox message */
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union intelvf_msg {
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/** Message header */
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uint32_t hdr;
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/** MAC address message */
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struct intelvf_msg_mac mac;
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/** Version number message */
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struct intelvf_msg_version version;
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/** MTU message */
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struct intelvf_msg_mtu mtu;
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/** Raw dwords */
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uint32_t dword[0];
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};
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/** Maximum time to wait for mailbox message
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*
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* This is a policy decision.
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*/
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#define INTELVF_MBOX_MAX_WAIT_MS 500
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extern int intelvf_mbox_msg ( struct intel_nic *intel, union intelvf_msg *msg );
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extern int intelvf_mbox_poll ( struct intel_nic *intel );
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extern int intelvf_mbox_wait ( struct intel_nic *intel );
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extern int intelvf_mbox_reset ( struct intel_nic *intel, uint8_t *hw_addr );
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extern int intelvf_mbox_set_mac ( struct intel_nic *intel,
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const uint8_t *ll_addr );
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extern int intelvf_mbox_set_mtu ( struct intel_nic *intel, size_t mtu );
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#endif /* _INTELVF_H */
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