536 lines
14 KiB
C
536 lines
14 KiB
C
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/*
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* Linux driver for VMware's vmxnet3 ethernet NIC.
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*
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* Copyright (C) 2008-2009, VMware, Inc. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; version 2 of the License and no later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
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* NON INFRINGEMENT. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* The full GNU General Public License is included in this distribution in
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* the file called "COPYING".
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*
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* Maintained by: Shreyas Bhatewara <pv-drivers@vmware.com>
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*
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*/
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#ifndef _VMXNET3_DEFS_H_
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#define _VMXNET3_DEFS_H_
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#include "upt1_defs.h"
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/* all registers are 32 bit wide */
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/* BAR 1 */
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enum {
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VMXNET3_REG_VRRS = 0x0, /* Vmxnet3 Revision Report Selection */
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VMXNET3_REG_UVRS = 0x8, /* UPT Version Report Selection */
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VMXNET3_REG_DSAL = 0x10, /* Driver Shared Address Low */
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VMXNET3_REG_DSAH = 0x18, /* Driver Shared Address High */
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VMXNET3_REG_CMD = 0x20, /* Command */
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VMXNET3_REG_MACL = 0x28, /* MAC Address Low */
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VMXNET3_REG_MACH = 0x30, /* MAC Address High */
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VMXNET3_REG_ICR = 0x38, /* Interrupt Cause Register */
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VMXNET3_REG_ECR = 0x40 /* Event Cause Register */
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};
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/* BAR 0 */
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enum {
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VMXNET3_REG_IMR = 0x0, /* Interrupt Mask Register */
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VMXNET3_REG_TXPROD = 0x600, /* Tx Producer Index */
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VMXNET3_REG_RXPROD = 0x800, /* Rx Producer Index for ring 1 */
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VMXNET3_REG_RXPROD2 = 0xA00 /* Rx Producer Index for ring 2 */
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};
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#define VMXNET3_PT_REG_SIZE 4096 /* BAR 0 */
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#define VMXNET3_VD_REG_SIZE 4096 /* BAR 1 */
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#define VMXNET3_REG_ALIGN 8 /* All registers are 8-byte aligned. */
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#define VMXNET3_REG_ALIGN_MASK 0x7
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/* I/O Mapped access to registers */
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#define VMXNET3_IO_TYPE_PT 0
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#define VMXNET3_IO_TYPE_VD 1
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#define VMXNET3_IO_ADDR(type, reg) (((type) << 24) | ((reg) & 0xFFFFFF))
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#define VMXNET3_IO_TYPE(addr) ((addr) >> 24)
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#define VMXNET3_IO_REG(addr) ((addr) & 0xFFFFFF)
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enum {
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VMXNET3_CMD_FIRST_SET = 0xCAFE0000,
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VMXNET3_CMD_ACTIVATE_DEV = VMXNET3_CMD_FIRST_SET,
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VMXNET3_CMD_QUIESCE_DEV,
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VMXNET3_CMD_RESET_DEV,
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VMXNET3_CMD_UPDATE_RX_MODE,
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VMXNET3_CMD_UPDATE_MAC_FILTERS,
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VMXNET3_CMD_UPDATE_VLAN_FILTERS,
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VMXNET3_CMD_UPDATE_RSSIDT,
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VMXNET3_CMD_UPDATE_IML,
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VMXNET3_CMD_UPDATE_PMCFG,
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VMXNET3_CMD_UPDATE_FEATURE,
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VMXNET3_CMD_LOAD_PLUGIN,
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VMXNET3_CMD_FIRST_GET = 0xF00D0000,
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VMXNET3_CMD_GET_QUEUE_STATUS = VMXNET3_CMD_FIRST_GET,
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VMXNET3_CMD_GET_STATS,
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VMXNET3_CMD_GET_LINK,
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VMXNET3_CMD_GET_PERM_MAC_LO,
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VMXNET3_CMD_GET_PERM_MAC_HI,
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VMXNET3_CMD_GET_DID_LO,
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VMXNET3_CMD_GET_DID_HI,
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VMXNET3_CMD_GET_DEV_EXTRA_INFO,
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VMXNET3_CMD_GET_CONF_INTR
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};
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struct Vmxnet3_TxDesc {
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u64 addr;
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u32 len:14;
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u32 gen:1; /* generation bit */
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u32 rsvd:1;
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u32 dtype:1; /* descriptor type */
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u32 ext1:1;
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u32 msscof:14; /* MSS, checksum offset, flags */
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u32 hlen:10; /* header len */
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u32 om:2; /* offload mode */
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u32 eop:1; /* End Of Packet */
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u32 cq:1; /* completion request */
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u32 ext2:1;
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u32 ti:1; /* VLAN Tag Insertion */
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u32 tci:16; /* Tag to Insert */
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};
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/* TxDesc.OM values */
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#define VMXNET3_OM_NONE 0
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#define VMXNET3_OM_CSUM 2
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#define VMXNET3_OM_TSO 3
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/* fields in TxDesc we access w/o using bit fields */
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#define VMXNET3_TXD_EOP_SHIFT 12
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#define VMXNET3_TXD_CQ_SHIFT 13
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#define VMXNET3_TXD_GEN_SHIFT 14
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#define VMXNET3_TXD_CQ (1 << VMXNET3_TXD_CQ_SHIFT)
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#define VMXNET3_TXD_EOP (1 << VMXNET3_TXD_EOP_SHIFT)
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#define VMXNET3_TXD_GEN (1 << VMXNET3_TXD_GEN_SHIFT)
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#define VMXNET3_HDR_COPY_SIZE 128
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struct Vmxnet3_TxDataDesc {
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u8 data[VMXNET3_HDR_COPY_SIZE];
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};
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struct Vmxnet3_TxCompDesc {
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u32 txdIdx:12; /* Index of the EOP TxDesc */
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u32 ext1:20;
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u32 ext2;
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u32 ext3;
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u32 rsvd:24;
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u32 type:7; /* completion type */
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u32 gen:1; /* generation bit */
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};
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struct Vmxnet3_RxDesc {
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u64 addr;
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u32 len:14;
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u32 btype:1; /* Buffer Type */
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u32 dtype:1; /* Descriptor type */
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u32 rsvd:15;
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u32 gen:1; /* Generation bit */
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u32 ext1;
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};
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/* values of RXD.BTYPE */
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#define VMXNET3_RXD_BTYPE_HEAD 0 /* head only */
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#define VMXNET3_RXD_BTYPE_BODY 1 /* body only */
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/* fields in RxDesc we access w/o using bit fields */
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#define VMXNET3_RXD_BTYPE_SHIFT 14
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#define VMXNET3_RXD_GEN_SHIFT 31
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struct Vmxnet3_RxCompDesc {
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u32 rxdIdx:12; /* Index of the RxDesc */
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u32 ext1:2;
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u32 eop:1; /* End of Packet */
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u32 sop:1; /* Start of Packet */
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u32 rqID:10; /* rx queue/ring ID */
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u32 rssType:4; /* RSS hash type used */
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u32 cnc:1; /* Checksum Not Calculated */
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u32 ext2:1;
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u32 rssHash; /* RSS hash value */
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u32 len:14; /* data length */
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u32 err:1; /* Error */
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u32 ts:1; /* Tag is stripped */
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u32 tci:16; /* Tag stripped */
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u32 csum:16;
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u32 tuc:1; /* TCP/UDP Checksum Correct */
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u32 udp:1; /* UDP packet */
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u32 tcp:1; /* TCP packet */
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u32 ipc:1; /* IP Checksum Correct */
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u32 v6:1; /* IPv6 */
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u32 v4:1; /* IPv4 */
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u32 frg:1; /* IP Fragment */
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u32 fcs:1; /* Frame CRC correct */
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u32 type:7; /* completion type */
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u32 gen:1; /* generation bit */
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};
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/* fields in RxCompDesc we access via Vmxnet3_GenericDesc.dword[3] */
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#define VMXNET3_RCD_TUC_SHIFT 16
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#define VMXNET3_RCD_IPC_SHIFT 19
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/* fields in RxCompDesc we access via Vmxnet3_GenericDesc.qword[1] */
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#define VMXNET3_RCD_TYPE_SHIFT 56
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#define VMXNET3_RCD_GEN_SHIFT 63
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/* csum OK for TCP/UDP pkts over IP */
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#define VMXNET3_RCD_CSUM_OK (1 << VMXNET3_RCD_TUC_SHIFT | \
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1 << VMXNET3_RCD_IPC_SHIFT)
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/* value of RxCompDesc.rssType */
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enum {
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VMXNET3_RCD_RSS_TYPE_NONE = 0,
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VMXNET3_RCD_RSS_TYPE_IPV4 = 1,
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VMXNET3_RCD_RSS_TYPE_TCPIPV4 = 2,
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VMXNET3_RCD_RSS_TYPE_IPV6 = 3,
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VMXNET3_RCD_RSS_TYPE_TCPIPV6 = 4,
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};
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/* a union for accessing all cmd/completion descriptors */
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union Vmxnet3_GenericDesc {
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u64 qword[2];
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u32 dword[4];
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u16 word[8];
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struct Vmxnet3_TxDesc txd;
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struct Vmxnet3_RxDesc rxd;
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struct Vmxnet3_TxCompDesc tcd;
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struct Vmxnet3_RxCompDesc rcd;
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};
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#define VMXNET3_INIT_GEN 1
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/* Max size of a single tx buffer */
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#define VMXNET3_MAX_TX_BUF_SIZE (1 << 14)
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/* # of tx desc needed for a tx buffer size */
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#define VMXNET3_TXD_NEEDED(size) (((size) + VMXNET3_MAX_TX_BUF_SIZE - 1) / \
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VMXNET3_MAX_TX_BUF_SIZE)
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/* max # of tx descs for a non-tso pkt */
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#define VMXNET3_MAX_TXD_PER_PKT 16
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/* Max size of a single rx buffer */
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#define VMXNET3_MAX_RX_BUF_SIZE ((1 << 14) - 1)
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/* Minimum size of a type 0 buffer */
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#define VMXNET3_MIN_T0_BUF_SIZE 128
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#define VMXNET3_MAX_CSUM_OFFSET 1024
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/* Ring base address alignment */
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#define VMXNET3_RING_BA_ALIGN 512
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#define VMXNET3_RING_BA_MASK (VMXNET3_RING_BA_ALIGN - 1)
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/* Ring size must be a multiple of 32 */
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#define VMXNET3_RING_SIZE_ALIGN 32
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#define VMXNET3_RING_SIZE_MASK (VMXNET3_RING_SIZE_ALIGN - 1)
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/* Max ring size */
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#define VMXNET3_TX_RING_MAX_SIZE 4096
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#define VMXNET3_TC_RING_MAX_SIZE 4096
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#define VMXNET3_RX_RING_MAX_SIZE 4096
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#define VMXNET3_RC_RING_MAX_SIZE 8192
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/* a list of reasons for queue stop */
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enum {
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VMXNET3_ERR_NOEOP = 0x80000000, /* cannot find the EOP desc of a pkt */
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VMXNET3_ERR_TXD_REUSE = 0x80000001, /* reuse TxDesc before tx completion */
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VMXNET3_ERR_BIG_PKT = 0x80000002, /* too many TxDesc for a pkt */
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VMXNET3_ERR_DESC_NOT_SPT = 0x80000003, /* descriptor type not supported */
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VMXNET3_ERR_SMALL_BUF = 0x80000004, /* type 0 buffer too small */
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VMXNET3_ERR_STRESS = 0x80000005, /* stress option firing in vmkernel */
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VMXNET3_ERR_SWITCH = 0x80000006, /* mode switch failure */
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VMXNET3_ERR_TXD_INVALID = 0x80000007, /* invalid TxDesc */
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};
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/* completion descriptor types */
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#define VMXNET3_CDTYPE_TXCOMP 0 /* Tx Completion Descriptor */
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#define VMXNET3_CDTYPE_RXCOMP 3 /* Rx Completion Descriptor */
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enum {
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VMXNET3_GOS_BITS_UNK = 0, /* unknown */
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VMXNET3_GOS_BITS_32 = 1,
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VMXNET3_GOS_BITS_64 = 2,
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};
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#define VMXNET3_GOS_TYPE_LINUX 1
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struct Vmxnet3_GOSInfo {
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u32 gosBits:2; /* 32-bit or 64-bit? */
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u32 gosType:4; /* which guest */
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u32 gosVer:16; /* gos version */
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u32 gosMisc:10; /* other info about gos */
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};
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struct Vmxnet3_DriverInfo {
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u32 version;
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struct Vmxnet3_GOSInfo gos;
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u32 vmxnet3RevSpt;
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u32 uptVerSpt;
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};
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#define VMXNET3_REV1_MAGIC 0xbabefee1
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/*
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* QueueDescPA must be 128 bytes aligned. It points to an array of
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* Vmxnet3_TxQueueDesc followed by an array of Vmxnet3_RxQueueDesc.
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* The number of Vmxnet3_TxQueueDesc/Vmxnet3_RxQueueDesc are specified by
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* Vmxnet3_MiscConf.numTxQueues/numRxQueues, respectively.
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*/
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#define VMXNET3_QUEUE_DESC_ALIGN 128
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struct Vmxnet3_MiscConf {
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struct Vmxnet3_DriverInfo driverInfo;
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u64 uptFeatures;
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u64 ddPA; /* driver data PA */
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u64 queueDescPA; /* queue descriptor table PA */
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u32 ddLen; /* driver data len */
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u32 queueDescLen; /* queue desc. table len in bytes */
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u32 mtu;
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u16 maxNumRxSG;
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u8 numTxQueues;
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u8 numRxQueues;
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u32 reserved[4];
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};
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struct Vmxnet3_TxQueueConf {
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u64 txRingBasePA;
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u64 dataRingBasePA;
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u64 compRingBasePA;
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u64 ddPA; /* driver data */
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u64 reserved;
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u32 txRingSize; /* # of tx desc */
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u32 dataRingSize; /* # of data desc */
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u32 compRingSize; /* # of comp desc */
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u32 ddLen; /* size of driver data */
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u8 intrIdx;
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u8 _pad[7];
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};
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|
|
struct Vmxnet3_RxQueueConf {
|
||
|
|
u64 rxRingBasePA[2];
|
||
|
|
u64 compRingBasePA;
|
||
|
|
u64 ddPA; /* driver data */
|
||
|
|
u64 reserved;
|
||
|
|
u32 rxRingSize[2]; /* # of rx desc */
|
||
|
|
u32 compRingSize; /* # of rx comp desc */
|
||
|
|
u32 ddLen; /* size of driver data */
|
||
|
|
u8 intrIdx;
|
||
|
|
u8 _pad[7];
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
enum vmxnet3_intr_mask_mode {
|
||
|
|
VMXNET3_IMM_AUTO = 0,
|
||
|
|
VMXNET3_IMM_ACTIVE = 1,
|
||
|
|
VMXNET3_IMM_LAZY = 2
|
||
|
|
};
|
||
|
|
|
||
|
|
enum vmxnet3_intr_type {
|
||
|
|
VMXNET3_IT_AUTO = 0,
|
||
|
|
VMXNET3_IT_INTX = 1,
|
||
|
|
VMXNET3_IT_MSI = 2,
|
||
|
|
VMXNET3_IT_MSIX = 3
|
||
|
|
};
|
||
|
|
|
||
|
|
#define VMXNET3_MAX_TX_QUEUES 8
|
||
|
|
#define VMXNET3_MAX_RX_QUEUES 16
|
||
|
|
/* addition 1 for events */
|
||
|
|
#define VMXNET3_MAX_INTRS 25
|
||
|
|
|
||
|
|
|
||
|
|
struct Vmxnet3_IntrConf {
|
||
|
|
bool autoMask;
|
||
|
|
u8 numIntrs; /* # of interrupts */
|
||
|
|
u8 eventIntrIdx;
|
||
|
|
u8 modLevels[VMXNET3_MAX_INTRS]; /* moderation level for
|
||
|
|
* each intr */
|
||
|
|
u32 reserved[3];
|
||
|
|
};
|
||
|
|
|
||
|
|
/* one bit per VLAN ID, the size is in the units of u32 */
|
||
|
|
#define VMXNET3_VFT_SIZE (4096 / (sizeof(u32) * 8))
|
||
|
|
|
||
|
|
|
||
|
|
struct Vmxnet3_QueueStatus {
|
||
|
|
bool stopped;
|
||
|
|
u8 _pad[3];
|
||
|
|
u32 error;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
struct Vmxnet3_TxQueueCtrl {
|
||
|
|
u32 txNumDeferred;
|
||
|
|
u32 txThreshold;
|
||
|
|
u64 reserved;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
struct Vmxnet3_RxQueueCtrl {
|
||
|
|
bool updateRxProd;
|
||
|
|
u8 _pad[7];
|
||
|
|
u64 reserved;
|
||
|
|
};
|
||
|
|
|
||
|
|
enum {
|
||
|
|
VMXNET3_RXM_UCAST = 0x01, /* unicast only */
|
||
|
|
VMXNET3_RXM_MCAST = 0x02, /* multicast passing the filters */
|
||
|
|
VMXNET3_RXM_BCAST = 0x04, /* broadcast only */
|
||
|
|
VMXNET3_RXM_ALL_MULTI = 0x08, /* all multicast */
|
||
|
|
VMXNET3_RXM_PROMISC = 0x10 /* promiscuous */
|
||
|
|
};
|
||
|
|
|
||
|
|
struct Vmxnet3_RxFilterConf {
|
||
|
|
u32 rxMode; /* VMXNET3_RXM_xxx */
|
||
|
|
u16 mfTableLen; /* size of the multicast filter table */
|
||
|
|
u16 _pad1;
|
||
|
|
u64 mfTablePA; /* PA of the multicast filters table */
|
||
|
|
u32 vfTable[VMXNET3_VFT_SIZE]; /* vlan filter */
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
#define VMXNET3_PM_MAX_FILTERS 6
|
||
|
|
#define VMXNET3_PM_MAX_PATTERN_SIZE 128
|
||
|
|
#define VMXNET3_PM_MAX_MASK_SIZE (VMXNET3_PM_MAX_PATTERN_SIZE / 8)
|
||
|
|
|
||
|
|
#define VMXNET3_PM_WAKEUP_MAGIC 0x01 /* wake up on magic pkts */
|
||
|
|
#define VMXNET3_PM_WAKEUP_FILTER 0x02 /* wake up on pkts matching
|
||
|
|
* filters */
|
||
|
|
|
||
|
|
|
||
|
|
struct Vmxnet3_PM_PktFilter {
|
||
|
|
u8 maskSize;
|
||
|
|
u8 patternSize;
|
||
|
|
u8 mask[VMXNET3_PM_MAX_MASK_SIZE];
|
||
|
|
u8 pattern[VMXNET3_PM_MAX_PATTERN_SIZE];
|
||
|
|
u8 pad[6];
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
struct Vmxnet3_PMConf {
|
||
|
|
u16 wakeUpEvents; /* VMXNET3_PM_WAKEUP_xxx */
|
||
|
|
u8 numFilters;
|
||
|
|
u8 pad[5];
|
||
|
|
struct Vmxnet3_PM_PktFilter filters[VMXNET3_PM_MAX_FILTERS];
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
struct Vmxnet3_VariableLenConfDesc {
|
||
|
|
u32 confVer;
|
||
|
|
u32 confLen;
|
||
|
|
u64 confPA;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
struct Vmxnet3_TxQueueDesc {
|
||
|
|
struct Vmxnet3_TxQueueCtrl ctrl;
|
||
|
|
struct Vmxnet3_TxQueueConf conf;
|
||
|
|
|
||
|
|
/* Driver read after a GET command */
|
||
|
|
struct Vmxnet3_QueueStatus status;
|
||
|
|
struct UPT1_TxStats stats;
|
||
|
|
u8 _pad[88]; /* 128 aligned */
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
struct Vmxnet3_RxQueueDesc {
|
||
|
|
struct Vmxnet3_RxQueueCtrl ctrl;
|
||
|
|
struct Vmxnet3_RxQueueConf conf;
|
||
|
|
/* Driver read after a GET commad */
|
||
|
|
struct Vmxnet3_QueueStatus status;
|
||
|
|
struct UPT1_RxStats stats;
|
||
|
|
u8 __pad[88]; /* 128 aligned */
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
struct Vmxnet3_DSDevRead {
|
||
|
|
/* read-only region for device, read by dev in response to a SET cmd */
|
||
|
|
struct Vmxnet3_MiscConf misc;
|
||
|
|
struct Vmxnet3_IntrConf intrConf;
|
||
|
|
struct Vmxnet3_RxFilterConf rxFilterConf;
|
||
|
|
struct Vmxnet3_VariableLenConfDesc rssConfDesc;
|
||
|
|
struct Vmxnet3_VariableLenConfDesc pmConfDesc;
|
||
|
|
struct Vmxnet3_VariableLenConfDesc pluginConfDesc;
|
||
|
|
};
|
||
|
|
|
||
|
|
/* All structures in DriverShared are padded to multiples of 8 bytes */
|
||
|
|
struct Vmxnet3_DriverShared {
|
||
|
|
u32 magic;
|
||
|
|
/* make devRead start at 64bit boundaries */
|
||
|
|
u32 pad;
|
||
|
|
struct Vmxnet3_DSDevRead devRead;
|
||
|
|
u32 ecr;
|
||
|
|
u32 reserved[5];
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
#define VMXNET3_ECR_RQERR (1 << 0)
|
||
|
|
#define VMXNET3_ECR_TQERR (1 << 1)
|
||
|
|
#define VMXNET3_ECR_LINK (1 << 2)
|
||
|
|
#define VMXNET3_ECR_DIC (1 << 3)
|
||
|
|
#define VMXNET3_ECR_DEBUG (1 << 4)
|
||
|
|
|
||
|
|
/* flip the gen bit of a ring */
|
||
|
|
#define VMXNET3_FLIP_RING_GEN(gen) ((gen) = (gen) ^ 0x1)
|
||
|
|
|
||
|
|
/* only use this if moving the idx won't affect the gen bit */
|
||
|
|
#define VMXNET3_INC_RING_IDX_ONLY(idx, ring_size) \
|
||
|
|
do {\
|
||
|
|
(idx)++;\
|
||
|
|
if (unlikely((idx) == (ring_size))) {\
|
||
|
|
(idx) = 0;\
|
||
|
|
} \
|
||
|
|
} while (0)
|
||
|
|
|
||
|
|
#define VMXNET3_SET_VFTABLE_ENTRY(vfTable, vid) \
|
||
|
|
(vfTable[vid >> 5] |= (1 << (vid & 31)))
|
||
|
|
#define VMXNET3_CLEAR_VFTABLE_ENTRY(vfTable, vid) \
|
||
|
|
(vfTable[vid >> 5] &= ~(1 << (vid & 31)))
|
||
|
|
|
||
|
|
#define VMXNET3_VFTABLE_ENTRY_IS_SET(vfTable, vid) \
|
||
|
|
((vfTable[vid >> 5] & (1 << (vid & 31))) != 0)
|
||
|
|
|
||
|
|
#define VMXNET3_MAX_MTU 9000
|
||
|
|
#define VMXNET3_MIN_MTU 60
|
||
|
|
|
||
|
|
#define VMXNET3_LINK_UP (10000 << 16 | 1) /* 10 Gbps, up */
|
||
|
|
#define VMXNET3_LINK_DOWN 0
|
||
|
|
|
||
|
|
#endif /* _VMXNET3_DEFS_H_ */
|