diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/net/vmxnet3')
| -rw-r--r-- | ANDROID_3.4.5/drivers/net/vmxnet3/Makefile | 35 | ||||
| -rw-r--r-- | ANDROID_3.4.5/drivers/net/vmxnet3/upt1_defs.h | 96 | ||||
| -rw-r--r-- | ANDROID_3.4.5/drivers/net/vmxnet3/vmxnet3_defs.h | 629 | ||||
| -rw-r--r-- | ANDROID_3.4.5/drivers/net/vmxnet3/vmxnet3_drv.c | 3309 | ||||
| -rw-r--r-- | ANDROID_3.4.5/drivers/net/vmxnet3/vmxnet3_ethtool.c | 635 | ||||
| -rw-r--r-- | ANDROID_3.4.5/drivers/net/vmxnet3/vmxnet3_int.h | 416 |
6 files changed, 0 insertions, 5120 deletions
diff --git a/ANDROID_3.4.5/drivers/net/vmxnet3/Makefile b/ANDROID_3.4.5/drivers/net/vmxnet3/Makefile deleted file mode 100644 index 880f5098..00000000 --- a/ANDROID_3.4.5/drivers/net/vmxnet3/Makefile +++ /dev/null @@ -1,35 +0,0 @@ -################################################################################ -# -# Linux driver for VMware's vmxnet3 ethernet NIC. -# -# Copyright (C) 2007-2009, VMware, Inc. All Rights Reserved. -# -# This program is free software; you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by the -# Free Software Foundation; version 2 of the License and no later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or -# NON INFRINGEMENT. See the GNU General Public License for more -# details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. -# -# The full GNU General Public License is included in this distribution in -# the file called "COPYING". -# -# Maintained by: Shreyas Bhatewara <pv-drivers@vmware.com> -# -# -################################################################################ - -# -# Makefile for the VMware vmxnet3 ethernet NIC driver -# - -obj-$(CONFIG_VMXNET3) += vmxnet3.o - -vmxnet3-objs := vmxnet3_drv.o vmxnet3_ethtool.o diff --git a/ANDROID_3.4.5/drivers/net/vmxnet3/upt1_defs.h b/ANDROID_3.4.5/drivers/net/vmxnet3/upt1_defs.h deleted file mode 100644 index 969c751e..00000000 --- a/ANDROID_3.4.5/drivers/net/vmxnet3/upt1_defs.h +++ /dev/null @@ -1,96 +0,0 @@ -/* - * Linux driver for VMware's vmxnet3 ethernet NIC. - * - * Copyright (C) 2008-2009, VMware, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; version 2 of the License and no later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * The full GNU General Public License is included in this distribution in - * the file called "COPYING". - * - * Maintained by: Shreyas Bhatewara <pv-drivers@vmware.com> - * - */ - -#ifndef _UPT1_DEFS_H -#define _UPT1_DEFS_H - -struct UPT1_TxStats { - u64 TSOPktsTxOK; /* TSO pkts post-segmentation */ - u64 TSOBytesTxOK; - u64 ucastPktsTxOK; - u64 ucastBytesTxOK; - u64 mcastPktsTxOK; - u64 mcastBytesTxOK; - u64 bcastPktsTxOK; - u64 bcastBytesTxOK; - u64 pktsTxError; - u64 pktsTxDiscard; -}; - -struct UPT1_RxStats { - u64 LROPktsRxOK; /* LRO pkts */ - u64 LROBytesRxOK; /* bytes from LRO pkts */ - /* the following counters are for pkts from the wire, i.e., pre-LRO */ - u64 ucastPktsRxOK; - u64 ucastBytesRxOK; - u64 mcastPktsRxOK; - u64 mcastBytesRxOK; - u64 bcastPktsRxOK; - u64 bcastBytesRxOK; - u64 pktsRxOutOfBuf; - u64 pktsRxError; -}; - -/* interrupt moderation level */ -enum { - UPT1_IML_NONE = 0, /* no interrupt moderation */ - UPT1_IML_HIGHEST = 7, /* least intr generated */ - UPT1_IML_ADAPTIVE = 8, /* adpative intr moderation */ -}; -/* values for UPT1_RSSConf.hashFunc */ -enum { - UPT1_RSS_HASH_TYPE_NONE = 0x0, - UPT1_RSS_HASH_TYPE_IPV4 = 0x01, - UPT1_RSS_HASH_TYPE_TCP_IPV4 = 0x02, - UPT1_RSS_HASH_TYPE_IPV6 = 0x04, - UPT1_RSS_HASH_TYPE_TCP_IPV6 = 0x08, -}; - -enum { - UPT1_RSS_HASH_FUNC_NONE = 0x0, - UPT1_RSS_HASH_FUNC_TOEPLITZ = 0x01, -}; - -#define UPT1_RSS_MAX_KEY_SIZE 40 -#define UPT1_RSS_MAX_IND_TABLE_SIZE 128 - -struct UPT1_RSSConf { - u16 hashType; - u16 hashFunc; - u16 hashKeySize; - u16 indTableSize; - u8 hashKey[UPT1_RSS_MAX_KEY_SIZE]; - u8 indTable[UPT1_RSS_MAX_IND_TABLE_SIZE]; -}; - -/* features */ -enum { - UPT1_F_RXCSUM = cpu_to_le64(0x0001), /* rx csum verification */ - UPT1_F_RSS = cpu_to_le64(0x0002), - UPT1_F_RXVLAN = cpu_to_le64(0x0004), /* VLAN tag stripping */ - UPT1_F_LRO = cpu_to_le64(0x0008), -}; -#endif diff --git a/ANDROID_3.4.5/drivers/net/vmxnet3/vmxnet3_defs.h b/ANDROID_3.4.5/drivers/net/vmxnet3/vmxnet3_defs.h deleted file mode 100644 index 4d84912c..00000000 --- a/ANDROID_3.4.5/drivers/net/vmxnet3/vmxnet3_defs.h +++ /dev/null @@ -1,629 +0,0 @@ -/* - * Linux driver for VMware's vmxnet3 ethernet NIC. - * - * Copyright (C) 2008-2009, VMware, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; version 2 of the License and no later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * The full GNU General Public License is included in this distribution in - * the file called "COPYING". - * - * Maintained by: Shreyas Bhatewara <pv-drivers@vmware.com> - * - */ - -#ifndef _VMXNET3_DEFS_H_ -#define _VMXNET3_DEFS_H_ - -#include "upt1_defs.h" - -/* all registers are 32 bit wide */ -/* BAR 1 */ -enum { - VMXNET3_REG_VRRS = 0x0, /* Vmxnet3 Revision Report Selection */ - VMXNET3_REG_UVRS = 0x8, /* UPT Version Report Selection */ - VMXNET3_REG_DSAL = 0x10, /* Driver Shared Address Low */ - VMXNET3_REG_DSAH = 0x18, /* Driver Shared Address High */ - VMXNET3_REG_CMD = 0x20, /* Command */ - VMXNET3_REG_MACL = 0x28, /* MAC Address Low */ - VMXNET3_REG_MACH = 0x30, /* MAC Address High */ - VMXNET3_REG_ICR = 0x38, /* Interrupt Cause Register */ - VMXNET3_REG_ECR = 0x40 /* Event Cause Register */ -}; - -/* BAR 0 */ -enum { - VMXNET3_REG_IMR = 0x0, /* Interrupt Mask Register */ - VMXNET3_REG_TXPROD = 0x600, /* Tx Producer Index */ - VMXNET3_REG_RXPROD = 0x800, /* Rx Producer Index for ring 1 */ - VMXNET3_REG_RXPROD2 = 0xA00 /* Rx Producer Index for ring 2 */ -}; - -#define VMXNET3_PT_REG_SIZE 4096 /* BAR 0 */ -#define VMXNET3_VD_REG_SIZE 4096 /* BAR 1 */ - -#define VMXNET3_REG_ALIGN 8 /* All registers are 8-byte aligned. */ -#define VMXNET3_REG_ALIGN_MASK 0x7 - -/* I/O Mapped access to registers */ -#define VMXNET3_IO_TYPE_PT 0 -#define VMXNET3_IO_TYPE_VD 1 -#define VMXNET3_IO_ADDR(type, reg) (((type) << 24) | ((reg) & 0xFFFFFF)) -#define VMXNET3_IO_TYPE(addr) ((addr) >> 24) -#define VMXNET3_IO_REG(addr) ((addr) & 0xFFFFFF) - -enum { - VMXNET3_CMD_FIRST_SET = 0xCAFE0000, - VMXNET3_CMD_ACTIVATE_DEV = VMXNET3_CMD_FIRST_SET, - VMXNET3_CMD_QUIESCE_DEV, - VMXNET3_CMD_RESET_DEV, - VMXNET3_CMD_UPDATE_RX_MODE, - VMXNET3_CMD_UPDATE_MAC_FILTERS, - VMXNET3_CMD_UPDATE_VLAN_FILTERS, - VMXNET3_CMD_UPDATE_RSSIDT, - VMXNET3_CMD_UPDATE_IML, - VMXNET3_CMD_UPDATE_PMCFG, - VMXNET3_CMD_UPDATE_FEATURE, - VMXNET3_CMD_LOAD_PLUGIN, - - VMXNET3_CMD_FIRST_GET = 0xF00D0000, - VMXNET3_CMD_GET_QUEUE_STATUS = VMXNET3_CMD_FIRST_GET, - VMXNET3_CMD_GET_STATS, - VMXNET3_CMD_GET_LINK, - VMXNET3_CMD_GET_PERM_MAC_LO, - VMXNET3_CMD_GET_PERM_MAC_HI, - VMXNET3_CMD_GET_DID_LO, - VMXNET3_CMD_GET_DID_HI, - VMXNET3_CMD_GET_DEV_EXTRA_INFO, - VMXNET3_CMD_GET_CONF_INTR -}; - -/* - * Little Endian layout of bitfields - - * Byte 0 : 7.....len.....0 - * Byte 1 : rsvd gen 13.len.8 - * Byte 2 : 5.msscof.0 ext1 dtype - * Byte 3 : 13...msscof...6 - * - * Big Endian layout of bitfields - - * Byte 0: 13...msscof...6 - * Byte 1 : 5.msscof.0 ext1 dtype - * Byte 2 : rsvd gen 13.len.8 - * Byte 3 : 7.....len.....0 - * - * Thus, le32_to_cpu on the dword will allow the big endian driver to read - * the bit fields correctly. And cpu_to_le32 will convert bitfields - * bit fields written by big endian driver to format required by device. - */ - -struct Vmxnet3_TxDesc { - __le64 addr; - -#ifdef __BIG_ENDIAN_BITFIELD - u32 msscof:14; /* MSS, checksum offset, flags */ - u32 ext1:1; - u32 dtype:1; /* descriptor type */ - u32 rsvd:1; - u32 gen:1; /* generation bit */ - u32 len:14; -#else - u32 len:14; - u32 gen:1; /* generation bit */ - u32 rsvd:1; - u32 dtype:1; /* descriptor type */ - u32 ext1:1; - u32 msscof:14; /* MSS, checksum offset, flags */ -#endif /* __BIG_ENDIAN_BITFIELD */ - -#ifdef __BIG_ENDIAN_BITFIELD - u32 tci:16; /* Tag to Insert */ - u32 ti:1; /* VLAN Tag Insertion */ - u32 ext2:1; - u32 cq:1; /* completion request */ - u32 eop:1; /* End Of Packet */ - u32 om:2; /* offload mode */ - u32 hlen:10; /* header len */ -#else - u32 hlen:10; /* header len */ - u32 om:2; /* offload mode */ - u32 eop:1; /* End Of Packet */ - u32 cq:1; /* completion request */ - u32 ext2:1; - u32 ti:1; /* VLAN Tag Insertion */ - u32 tci:16; /* Tag to Insert */ -#endif /* __BIG_ENDIAN_BITFIELD */ -}; - -/* TxDesc.OM values */ -#define VMXNET3_OM_NONE 0 -#define VMXNET3_OM_CSUM 2 -#define VMXNET3_OM_TSO 3 - -/* fields in TxDesc we access w/o using bit fields */ -#define VMXNET3_TXD_EOP_SHIFT 12 -#define VMXNET3_TXD_CQ_SHIFT 13 -#define VMXNET3_TXD_GEN_SHIFT 14 -#define VMXNET3_TXD_EOP_DWORD_SHIFT 3 -#define VMXNET3_TXD_GEN_DWORD_SHIFT 2 - -#define VMXNET3_TXD_CQ (1 << VMXNET3_TXD_CQ_SHIFT) -#define VMXNET3_TXD_EOP (1 << VMXNET3_TXD_EOP_SHIFT) -#define VMXNET3_TXD_GEN (1 << VMXNET3_TXD_GEN_SHIFT) - -#define VMXNET3_HDR_COPY_SIZE 128 - - -struct Vmxnet3_TxDataDesc { - u8 data[VMXNET3_HDR_COPY_SIZE]; -}; - -#define VMXNET3_TCD_GEN_SHIFT 31 -#define VMXNET3_TCD_GEN_SIZE 1 -#define VMXNET3_TCD_TXIDX_SHIFT 0 -#define VMXNET3_TCD_TXIDX_SIZE 12 -#define VMXNET3_TCD_GEN_DWORD_SHIFT 3 - -struct Vmxnet3_TxCompDesc { - u32 txdIdx:12; /* Index of the EOP TxDesc */ - u32 ext1:20; - - __le32 ext2; - __le32 ext3; - - u32 rsvd:24; - u32 type:7; /* completion type */ - u32 gen:1; /* generation bit */ -}; - -struct Vmxnet3_RxDesc { - __le64 addr; - -#ifdef __BIG_ENDIAN_BITFIELD - u32 gen:1; /* Generation bit */ - u32 rsvd:15; - u32 dtype:1; /* Descriptor type */ - u32 btype:1; /* Buffer Type */ - u32 len:14; -#else - u32 len:14; - u32 btype:1; /* Buffer Type */ - u32 dtype:1; /* Descriptor type */ - u32 rsvd:15; - u32 gen:1; /* Generation bit */ -#endif - u32 ext1; -}; - -/* values of RXD.BTYPE */ -#define VMXNET3_RXD_BTYPE_HEAD 0 /* head only */ -#define VMXNET3_RXD_BTYPE_BODY 1 /* body only */ - -/* fields in RxDesc we access w/o using bit fields */ -#define VMXNET3_RXD_BTYPE_SHIFT 14 -#define VMXNET3_RXD_GEN_SHIFT 31 - -struct Vmxnet3_RxCompDesc { -#ifdef __BIG_ENDIAN_BITFIELD - u32 ext2:1; - u32 cnc:1; /* Checksum Not Calculated */ - u32 rssType:4; /* RSS hash type used */ - u32 rqID:10; /* rx queue/ring ID */ - u32 sop:1; /* Start of Packet */ - u32 eop:1; /* End of Packet */ - u32 ext1:2; - u32 rxdIdx:12; /* Index of the RxDesc */ -#else - u32 rxdIdx:12; /* Index of the RxDesc */ - u32 ext1:2; - u32 eop:1; /* End of Packet */ - u32 sop:1; /* Start of Packet */ - u32 rqID:10; /* rx queue/ring ID */ - u32 rssType:4; /* RSS hash type used */ - u32 cnc:1; /* Checksum Not Calculated */ - u32 ext2:1; -#endif /* __BIG_ENDIAN_BITFIELD */ - - __le32 rssHash; /* RSS hash value */ - -#ifdef __BIG_ENDIAN_BITFIELD - u32 tci:16; /* Tag stripped */ - u32 ts:1; /* Tag is stripped */ - u32 err:1; /* Error */ - u32 len:14; /* data length */ -#else - u32 len:14; /* data length */ - u32 err:1; /* Error */ - u32 ts:1; /* Tag is stripped */ - u32 tci:16; /* Tag stripped */ -#endif /* __BIG_ENDIAN_BITFIELD */ - - -#ifdef __BIG_ENDIAN_BITFIELD - u32 gen:1; /* generation bit */ - u32 type:7; /* completion type */ - u32 fcs:1; /* Frame CRC correct */ - u32 frg:1; /* IP Fragment */ - u32 v4:1; /* IPv4 */ - u32 v6:1; /* IPv6 */ - u32 ipc:1; /* IP Checksum Correct */ - u32 tcp:1; /* TCP packet */ - u32 udp:1; /* UDP packet */ - u32 tuc:1; /* TCP/UDP Checksum Correct */ - u32 csum:16; -#else - u32 csum:16; - u32 tuc:1; /* TCP/UDP Checksum Correct */ - u32 udp:1; /* UDP packet */ - u32 tcp:1; /* TCP packet */ - u32 ipc:1; /* IP Checksum Correct */ - u32 v6:1; /* IPv6 */ - u32 v4:1; /* IPv4 */ - u32 frg:1; /* IP Fragment */ - u32 fcs:1; /* Frame CRC correct */ - u32 type:7; /* completion type */ - u32 gen:1; /* generation bit */ -#endif /* __BIG_ENDIAN_BITFIELD */ -}; - -/* fields in RxCompDesc we access via Vmxnet3_GenericDesc.dword[3] */ -#define VMXNET3_RCD_TUC_SHIFT 16 -#define VMXNET3_RCD_IPC_SHIFT 19 - -/* fields in RxCompDesc we access via Vmxnet3_GenericDesc.qword[1] */ -#define VMXNET3_RCD_TYPE_SHIFT 56 -#define VMXNET3_RCD_GEN_SHIFT 63 - -/* csum OK for TCP/UDP pkts over IP */ -#define VMXNET3_RCD_CSUM_OK (1 << VMXNET3_RCD_TUC_SHIFT | \ - 1 << VMXNET3_RCD_IPC_SHIFT) -#define VMXNET3_TXD_GEN_SIZE 1 -#define VMXNET3_TXD_EOP_SIZE 1 - -/* value of RxCompDesc.rssType */ -enum { - VMXNET3_RCD_RSS_TYPE_NONE = 0, - VMXNET3_RCD_RSS_TYPE_IPV4 = 1, - VMXNET3_RCD_RSS_TYPE_TCPIPV4 = 2, - VMXNET3_RCD_RSS_TYPE_IPV6 = 3, - VMXNET3_RCD_RSS_TYPE_TCPIPV6 = 4, -}; - - -/* a union for accessing all cmd/completion descriptors */ -union Vmxnet3_GenericDesc { - __le64 qword[2]; - __le32 dword[4]; - __le16 word[8]; - struct Vmxnet3_TxDesc txd; - struct Vmxnet3_RxDesc rxd; - struct Vmxnet3_TxCompDesc tcd; - struct Vmxnet3_RxCompDesc rcd; -}; - -#define VMXNET3_INIT_GEN 1 - -/* Max size of a single tx buffer */ -#define VMXNET3_MAX_TX_BUF_SIZE (1 << 14) - -/* # of tx desc needed for a tx buffer size */ -#define VMXNET3_TXD_NEEDED(size) (((size) + VMXNET3_MAX_TX_BUF_SIZE - 1) / \ - VMXNET3_MAX_TX_BUF_SIZE) - -/* max # of tx descs for a non-tso pkt */ -#define VMXNET3_MAX_TXD_PER_PKT 16 - -/* Max size of a single rx buffer */ -#define VMXNET3_MAX_RX_BUF_SIZE ((1 << 14) - 1) -/* Minimum size of a type 0 buffer */ -#define VMXNET3_MIN_T0_BUF_SIZE 128 -#define VMXNET3_MAX_CSUM_OFFSET 1024 - -/* Ring base address alignment */ -#define VMXNET3_RING_BA_ALIGN 512 -#define VMXNET3_RING_BA_MASK (VMXNET3_RING_BA_ALIGN - 1) - -/* Ring size must be a multiple of 32 */ -#define VMXNET3_RING_SIZE_ALIGN 32 -#define VMXNET3_RING_SIZE_MASK (VMXNET3_RING_SIZE_ALIGN - 1) - -/* Max ring size */ -#define VMXNET3_TX_RING_MAX_SIZE 4096 -#define VMXNET3_TC_RING_MAX_SIZE 4096 -#define VMXNET3_RX_RING_MAX_SIZE 4096 -#define VMXNET3_RC_RING_MAX_SIZE 8192 - -/* a list of reasons for queue stop */ - -enum { - VMXNET3_ERR_NOEOP = 0x80000000, /* cannot find the EOP desc of a pkt */ - VMXNET3_ERR_TXD_REUSE = 0x80000001, /* reuse TxDesc before tx completion */ - VMXNET3_ERR_BIG_PKT = 0x80000002, /* too many TxDesc for a pkt */ - VMXNET3_ERR_DESC_NOT_SPT = 0x80000003, /* descriptor type not supported */ - VMXNET3_ERR_SMALL_BUF = 0x80000004, /* type 0 buffer too small */ - VMXNET3_ERR_STRESS = 0x80000005, /* stress option firing in vmkernel */ - VMXNET3_ERR_SWITCH = 0x80000006, /* mode switch failure */ - VMXNET3_ERR_TXD_INVALID = 0x80000007, /* invalid TxDesc */ -}; - -/* completion descriptor types */ -#define VMXNET3_CDTYPE_TXCOMP 0 /* Tx Completion Descriptor */ -#define VMXNET3_CDTYPE_RXCOMP 3 /* Rx Completion Descriptor */ - -enum { - VMXNET3_GOS_BITS_UNK = 0, /* unknown */ - VMXNET3_GOS_BITS_32 = 1, - VMXNET3_GOS_BITS_64 = 2, -}; - -#define VMXNET3_GOS_TYPE_LINUX 1 - - -struct Vmxnet3_GOSInfo { -#ifdef __BIG_ENDIAN_BITFIELD - u32 gosMisc:10; /* other info about gos */ - u32 gosVer:16; /* gos version */ - u32 gosType:4; /* which guest */ - u32 gosBits:2; /* 32-bit or 64-bit? */ -#else - u32 gosBits:2; /* 32-bit or 64-bit? */ - u32 gosType:4; /* which guest */ - u32 gosVer:16; /* gos version */ - u32 gosMisc:10; /* other info about gos */ -#endif /* __BIG_ENDIAN_BITFIELD */ -}; - -struct Vmxnet3_DriverInfo { - __le32 version; - struct Vmxnet3_GOSInfo gos; - __le32 vmxnet3RevSpt; - __le32 uptVerSpt; -}; - - -#define VMXNET3_REV1_MAGIC 0xbabefee1 - -/* - * QueueDescPA must be 128 bytes aligned. It points to an array of - * Vmxnet3_TxQueueDesc followed by an array of Vmxnet3_RxQueueDesc. - * The number of Vmxnet3_TxQueueDesc/Vmxnet3_RxQueueDesc are specified by - * Vmxnet3_MiscConf.numTxQueues/numRxQueues, respectively. - */ -#define VMXNET3_QUEUE_DESC_ALIGN 128 - - -struct Vmxnet3_MiscConf { - struct Vmxnet3_DriverInfo driverInfo; - __le64 uptFeatures; - __le64 ddPA; /* driver data PA */ - __le64 queueDescPA; /* queue descriptor table PA */ - __le32 ddLen; /* driver data len */ - __le32 queueDescLen; /* queue desc. table len in bytes */ - __le32 mtu; - __le16 maxNumRxSG; - u8 numTxQueues; - u8 numRxQueues; - __le32 reserved[4]; -}; - - -struct Vmxnet3_TxQueueConf { - __le64 txRingBasePA; - __le64 dataRingBasePA; - __le64 compRingBasePA; - __le64 ddPA; /* driver data */ - __le64 reserved; - __le32 txRingSize; /* # of tx desc */ - __le32 dataRingSize; /* # of data desc */ - __le32 compRingSize; /* # of comp desc */ - __le32 ddLen; /* size of driver data */ - u8 intrIdx; - u8 _pad[7]; -}; - - -struct Vmxnet3_RxQueueConf { - __le64 rxRingBasePA[2]; - __le64 compRingBasePA; - __le64 ddPA; /* driver data */ - __le64 reserved; - __le32 rxRingSize[2]; /* # of rx desc */ - __le32 compRingSize; /* # of rx comp desc */ - __le32 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 - -/* value of intrCtrl */ -#define VMXNET3_IC_DISABLE_ALL 0x1 /* bit 0 */ - - -struct Vmxnet3_IntrConf { - bool autoMask; - u8 numIntrs; /* # of interrupts */ - u8 eventIntrIdx; - u8 modLevels[VMXNET3_MAX_INTRS]; /* moderation level for - * each intr */ - __le32 intrCtrl; - __le32 reserved[2]; -}; - -/* 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]; - __le32 error; -}; - - -struct Vmxnet3_TxQueueCtrl { - __le32 txNumDeferred; - __le32 txThreshold; - __le64 reserved; -}; - - -struct Vmxnet3_RxQueueCtrl { - bool updateRxProd; - u8 _pad[7]; - __le64 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 { - __le32 rxMode; /* VMXNET3_RXM_xxx */ - __le16 mfTableLen; /* size of the multicast filter table */ - __le16 _pad1; - __le64 mfTablePA; /* PA of the multicast filters table */ - __le32 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 cpu_to_le16(0x01) /* wake up on magic pkts */ -#define VMXNET3_PM_WAKEUP_FILTER cpu_to_le16(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 { - __le16 wakeUpEvents; /* VMXNET3_PM_WAKEUP_xxx */ - u8 numFilters; - u8 pad[5]; - struct Vmxnet3_PM_PktFilter filters[VMXNET3_PM_MAX_FILTERS]; -}; - - -struct Vmxnet3_VariableLenConfDesc { - __le32 confVer; - __le32 confLen; - __le64 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 { - __le32 magic; - /* make devRead start at 64bit boundaries */ - __le32 pad; - struct Vmxnet3_DSDevRead devRead; - __le32 ecr; - __le32 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_ */ diff --git a/ANDROID_3.4.5/drivers/net/vmxnet3/vmxnet3_drv.c b/ANDROID_3.4.5/drivers/net/vmxnet3/vmxnet3_drv.c deleted file mode 100644 index 3f04ba0a..00000000 --- a/ANDROID_3.4.5/drivers/net/vmxnet3/vmxnet3_drv.c +++ /dev/null @@ -1,3309 +0,0 @@ -/* - * Linux driver for VMware's vmxnet3 ethernet NIC. - * - * Copyright (C) 2008-2009, VMware, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; version 2 of the License and no later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * The full GNU General Public License is included in this distribution in - * the file called "COPYING". - * - * Maintained by: Shreyas Bhatewara <pv-drivers@vmware.com> - * - */ - -#include <linux/module.h> -#include <net/ip6_checksum.h> - -#include "vmxnet3_int.h" - -char vmxnet3_driver_name[] = "vmxnet3"; -#define VMXNET3_DRIVER_DESC "VMware vmxnet3 virtual NIC driver" - -/* - * PCI Device ID Table - * Last entry must be all 0s - */ -static DEFINE_PCI_DEVICE_TABLE(vmxnet3_pciid_table) = { - {PCI_VDEVICE(VMWARE, PCI_DEVICE_ID_VMWARE_VMXNET3)}, - {0} -}; - -MODULE_DEVICE_TABLE(pci, vmxnet3_pciid_table); - -static atomic_t devices_found; - -#define VMXNET3_MAX_DEVICES 10 -static int enable_mq = 1; -static int irq_share_mode; - -static void -vmxnet3_write_mac_addr(struct vmxnet3_adapter *adapter, u8 *mac); - -/* - * Enable/Disable the given intr - */ -static void -vmxnet3_enable_intr(struct vmxnet3_adapter *adapter, unsigned intr_idx) -{ - VMXNET3_WRITE_BAR0_REG(adapter, VMXNET3_REG_IMR + intr_idx * 8, 0); -} - - -static void -vmxnet3_disable_intr(struct vmxnet3_adapter *adapter, unsigned intr_idx) -{ - VMXNET3_WRITE_BAR0_REG(adapter, VMXNET3_REG_IMR + intr_idx * 8, 1); -} - - -/* - * Enable/Disable all intrs used by the device - */ -static void -vmxnet3_enable_all_intrs(struct vmxnet3_adapter *adapter) -{ - int i; - - for (i = 0; i < adapter->intr.num_intrs; i++) - vmxnet3_enable_intr(adapter, i); - adapter->shared->devRead.intrConf.intrCtrl &= - cpu_to_le32(~VMXNET3_IC_DISABLE_ALL); -} - - -static void -vmxnet3_disable_all_intrs(struct vmxnet3_adapter *adapter) -{ - int i; - - adapter->shared->devRead.intrConf.intrCtrl |= - cpu_to_le32(VMXNET3_IC_DISABLE_ALL); - for (i = 0; i < adapter->intr.num_intrs; i++) - vmxnet3_disable_intr(adapter, i); -} - - -static void -vmxnet3_ack_events(struct vmxnet3_adapter *adapter, u32 events) -{ - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_ECR, events); -} - - -static bool -vmxnet3_tq_stopped(struct vmxnet3_tx_queue *tq, struct vmxnet3_adapter *adapter) -{ - return tq->stopped; -} - - -static void -vmxnet3_tq_start(struct vmxnet3_tx_queue *tq, struct vmxnet3_adapter *adapter) -{ - tq->stopped = false; - netif_start_subqueue(adapter->netdev, tq - adapter->tx_queue); -} - - -static void -vmxnet3_tq_wake(struct vmxnet3_tx_queue *tq, struct vmxnet3_adapter *adapter) -{ - tq->stopped = false; - netif_wake_subqueue(adapter->netdev, (tq - adapter->tx_queue)); -} - - -static void -vmxnet3_tq_stop(struct vmxnet3_tx_queue *tq, struct vmxnet3_adapter *adapter) -{ - tq->stopped = true; - tq->num_stop++; - netif_stop_subqueue(adapter->netdev, (tq - adapter->tx_queue)); -} - - -/* - * Check the link state. This may start or stop the tx queue. - */ -static void -vmxnet3_check_link(struct vmxnet3_adapter *adapter, bool affectTxQueue) -{ - u32 ret; - int i; - unsigned long flags; - - spin_lock_irqsave(&adapter->cmd_lock, flags); - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_LINK); - ret = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD); - spin_unlock_irqrestore(&adapter->cmd_lock, flags); - - adapter->link_speed = ret >> 16; - if (ret & 1) { /* Link is up. */ - printk(KERN_INFO "%s: NIC Link is Up %d Mbps\n", - adapter->netdev->name, adapter->link_speed); - if (!netif_carrier_ok(adapter->netdev)) - netif_carrier_on(adapter->netdev); - - if (affectTxQueue) { - for (i = 0; i < adapter->num_tx_queues; i++) - vmxnet3_tq_start(&adapter->tx_queue[i], - adapter); - } - } else { - printk(KERN_INFO "%s: NIC Link is Down\n", - adapter->netdev->name); - if (netif_carrier_ok(adapter->netdev)) - netif_carrier_off(adapter->netdev); - - if (affectTxQueue) { - for (i = 0; i < adapter->num_tx_queues; i++) - vmxnet3_tq_stop(&adapter->tx_queue[i], adapter); - } - } -} - -static void -vmxnet3_process_events(struct vmxnet3_adapter *adapter) -{ - int i; - unsigned long flags; - u32 events = le32_to_cpu(adapter->shared->ecr); - if (!events) - return; - - vmxnet3_ack_events(adapter, events); - - /* Check if link state has changed */ - if (events & VMXNET3_ECR_LINK) - vmxnet3_check_link(adapter, true); - - /* Check if there is an error on xmit/recv queues */ - if (events & (VMXNET3_ECR_TQERR | VMXNET3_ECR_RQERR)) { - spin_lock_irqsave(&adapter->cmd_lock, flags); - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, - VMXNET3_CMD_GET_QUEUE_STATUS); - spin_unlock_irqrestore(&adapter->cmd_lock, flags); - - for (i = 0; i < adapter->num_tx_queues; i++) - if (adapter->tqd_start[i].status.stopped) - dev_err(&adapter->netdev->dev, - "%s: tq[%d] error 0x%x\n", - adapter->netdev->name, i, le32_to_cpu( - adapter->tqd_start[i].status.error)); - for (i = 0; i < adapter->num_rx_queues; i++) - if (adapter->rqd_start[i].status.stopped) - dev_err(&adapter->netdev->dev, - "%s: rq[%d] error 0x%x\n", - adapter->netdev->name, i, - adapter->rqd_start[i].status.error); - - schedule_work(&adapter->work); - } -} - -#ifdef __BIG_ENDIAN_BITFIELD -/* - * The device expects the bitfields in shared structures to be written in - * little endian. When CPU is big endian, the following routines are used to - * correctly read and write into ABI. - * The general technique used here is : double word bitfields are defined in - * opposite order for big endian architecture. Then before reading them in - * driver the complete double word is translated using le32_to_cpu. Similarly - * After the driver writes into bitfields, cpu_to_le32 is used to translate the - * double words into required format. - * In order to avoid touching bits in shared structure more than once, temporary - * descriptors are used. These are passed as srcDesc to following functions. - */ -static void vmxnet3_RxDescToCPU(const struct Vmxnet3_RxDesc *srcDesc, - struct Vmxnet3_RxDesc *dstDesc) -{ - u32 *src = (u32 *)srcDesc + 2; - u32 *dst = (u32 *)dstDesc + 2; - dstDesc->addr = le64_to_cpu(srcDesc->addr); - *dst = le32_to_cpu(*src); - dstDesc->ext1 = le32_to_cpu(srcDesc->ext1); -} - -static void vmxnet3_TxDescToLe(const struct Vmxnet3_TxDesc *srcDesc, - struct Vmxnet3_TxDesc *dstDesc) -{ - int i; - u32 *src = (u32 *)(srcDesc + 1); - u32 *dst = (u32 *)(dstDesc + 1); - - /* Working backwards so that the gen bit is set at the end. */ - for (i = 2; i > 0; i--) { - src--; - dst--; - *dst = cpu_to_le32(*src); - } -} - - -static void vmxnet3_RxCompToCPU(const struct Vmxnet3_RxCompDesc *srcDesc, - struct Vmxnet3_RxCompDesc *dstDesc) -{ - int i = 0; - u32 *src = (u32 *)srcDesc; - u32 *dst = (u32 *)dstDesc; - for (i = 0; i < sizeof(struct Vmxnet3_RxCompDesc) / sizeof(u32); i++) { - *dst = le32_to_cpu(*src); - src++; - dst++; - } -} - - -/* Used to read bitfield values from double words. */ -static u32 get_bitfield32(const __le32 *bitfield, u32 pos, u32 size) -{ - u32 temp = le32_to_cpu(*bitfield); - u32 mask = ((1 << size) - 1) << pos; - temp &= mask; - temp >>= pos; - return temp; -} - - - -#endif /* __BIG_ENDIAN_BITFIELD */ - -#ifdef __BIG_ENDIAN_BITFIELD - -# define VMXNET3_TXDESC_GET_GEN(txdesc) get_bitfield32(((const __le32 *) \ - txdesc) + VMXNET3_TXD_GEN_DWORD_SHIFT, \ - VMXNET3_TXD_GEN_SHIFT, VMXNET3_TXD_GEN_SIZE) -# define VMXNET3_TXDESC_GET_EOP(txdesc) get_bitfield32(((const __le32 *) \ - txdesc) + VMXNET3_TXD_EOP_DWORD_SHIFT, \ - VMXNET3_TXD_EOP_SHIFT, VMXNET3_TXD_EOP_SIZE) -# define VMXNET3_TCD_GET_GEN(tcd) get_bitfield32(((const __le32 *)tcd) + \ - VMXNET3_TCD_GEN_DWORD_SHIFT, VMXNET3_TCD_GEN_SHIFT, \ - VMXNET3_TCD_GEN_SIZE) -# define VMXNET3_TCD_GET_TXIDX(tcd) get_bitfield32((const __le32 *)tcd, \ - VMXNET3_TCD_TXIDX_SHIFT, VMXNET3_TCD_TXIDX_SIZE) -# define vmxnet3_getRxComp(dstrcd, rcd, tmp) do { \ - (dstrcd) = (tmp); \ - vmxnet3_RxCompToCPU((rcd), (tmp)); \ - } while (0) -# define vmxnet3_getRxDesc(dstrxd, rxd, tmp) do { \ - (dstrxd) = (tmp); \ - vmxnet3_RxDescToCPU((rxd), (tmp)); \ - } while (0) - -#else - -# define VMXNET3_TXDESC_GET_GEN(txdesc) ((txdesc)->gen) -# define VMXNET3_TXDESC_GET_EOP(txdesc) ((txdesc)->eop) -# define VMXNET3_TCD_GET_GEN(tcd) ((tcd)->gen) -# define VMXNET3_TCD_GET_TXIDX(tcd) ((tcd)->txdIdx) -# define vmxnet3_getRxComp(dstrcd, rcd, tmp) (dstrcd) = (rcd) -# define vmxnet3_getRxDesc(dstrxd, rxd, tmp) (dstrxd) = (rxd) - -#endif /* __BIG_ENDIAN_BITFIELD */ - - -static void -vmxnet3_unmap_tx_buf(struct vmxnet3_tx_buf_info *tbi, - struct pci_dev *pdev) -{ - if (tbi->map_type == VMXNET3_MAP_SINGLE) - pci_unmap_single(pdev, tbi->dma_addr, tbi->len, - PCI_DMA_TODEVICE); - else if (tbi->map_type == VMXNET3_MAP_PAGE) - pci_unmap_page(pdev, tbi->dma_addr, tbi->len, - PCI_DMA_TODEVICE); - else - BUG_ON(tbi->map_type != VMXNET3_MAP_NONE); - - tbi->map_type = VMXNET3_MAP_NONE; /* to help debugging */ -} - - -static int -vmxnet3_unmap_pkt(u32 eop_idx, struct vmxnet3_tx_queue *tq, - struct pci_dev *pdev, struct vmxnet3_adapter *adapter) -{ - struct sk_buff *skb; - int entries = 0; - - /* no out of order completion */ - BUG_ON(tq->buf_info[eop_idx].sop_idx != tq->tx_ring.next2comp); - BUG_ON(VMXNET3_TXDESC_GET_EOP(&(tq->tx_ring.base[eop_idx].txd)) != 1); - - skb = tq->buf_info[eop_idx].skb; - BUG_ON(skb == NULL); - tq->buf_info[eop_idx].skb = NULL; - - VMXNET3_INC_RING_IDX_ONLY(eop_idx, tq->tx_ring.size); - - while (tq->tx_ring.next2comp != eop_idx) { - vmxnet3_unmap_tx_buf(tq->buf_info + tq->tx_ring.next2comp, - pdev); - - /* update next2comp w/o tx_lock. Since we are marking more, - * instead of less, tx ring entries avail, the worst case is - * that the tx routine incorrectly re-queues a pkt due to - * insufficient tx ring entries. - */ - vmxnet3_cmd_ring_adv_next2comp(&tq->tx_ring); - entries++; - } - - dev_kfree_skb_any(skb); - return entries; -} - - -static int -vmxnet3_tq_tx_complete(struct vmxnet3_tx_queue *tq, - struct vmxnet3_adapter *adapter) -{ - int completed = 0; - union Vmxnet3_GenericDesc *gdesc; - - gdesc = tq->comp_ring.base + tq->comp_ring.next2proc; - while (VMXNET3_TCD_GET_GEN(&gdesc->tcd) == tq->comp_ring.gen) { - completed += vmxnet3_unmap_pkt(VMXNET3_TCD_GET_TXIDX( - &gdesc->tcd), tq, adapter->pdev, - adapter); - - vmxnet3_comp_ring_adv_next2proc(&tq->comp_ring); - gdesc = tq->comp_ring.base + tq->comp_ring.next2proc; - } - - if (completed) { - spin_lock(&tq->tx_lock); - if (unlikely(vmxnet3_tq_stopped(tq, adapter) && - vmxnet3_cmd_ring_desc_avail(&tq->tx_ring) > - VMXNET3_WAKE_QUEUE_THRESHOLD(tq) && - netif_carrier_ok(adapter->netdev))) { - vmxnet3_tq_wake(tq, adapter); - } - spin_unlock(&tq->tx_lock); - } - return completed; -} - - -static void -vmxnet3_tq_cleanup(struct vmxnet3_tx_queue *tq, - struct vmxnet3_adapter *adapter) -{ - int i; - - while (tq->tx_ring.next2comp != tq->tx_ring.next2fill) { - struct vmxnet3_tx_buf_info *tbi; - - tbi = tq->buf_info + tq->tx_ring.next2comp; - - vmxnet3_unmap_tx_buf(tbi, adapter->pdev); - if (tbi->skb) { - dev_kfree_skb_any(tbi->skb); - tbi->skb = NULL; - } - vmxnet3_cmd_ring_adv_next2comp(&tq->tx_ring); - } - - /* sanity check, verify all buffers are indeed unmapped and freed */ - for (i = 0; i < tq->tx_ring.size; i++) { - BUG_ON(tq->buf_info[i].skb != NULL || - tq->buf_info[i].map_type != VMXNET3_MAP_NONE); - } - - tq->tx_ring.gen = VMXNET3_INIT_GEN; - tq->tx_ring.next2fill = tq->tx_ring.next2comp = 0; - - tq->comp_ring.gen = VMXNET3_INIT_GEN; - tq->comp_ring.next2proc = 0; -} - - -static void -vmxnet3_tq_destroy(struct vmxnet3_tx_queue *tq, - struct vmxnet3_adapter *adapter) -{ - if (tq->tx_ring.base) { - pci_free_consistent(adapter->pdev, tq->tx_ring.size * - sizeof(struct Vmxnet3_TxDesc), - tq->tx_ring.base, tq->tx_ring.basePA); - tq->tx_ring.base = NULL; - } - if (tq->data_ring.base) { - pci_free_consistent(adapter->pdev, tq->data_ring.size * - sizeof(struct Vmxnet3_TxDataDesc), - tq->data_ring.base, tq->data_ring.basePA); - tq->data_ring.base = NULL; - } - if (tq->comp_ring.base) { - pci_free_consistent(adapter->pdev, tq->comp_ring.size * - sizeof(struct Vmxnet3_TxCompDesc), - tq->comp_ring.base, tq->comp_ring.basePA); - tq->comp_ring.base = NULL; - } - kfree(tq->buf_info); - tq->buf_info = NULL; -} - - -/* Destroy all tx queues */ -void -vmxnet3_tq_destroy_all(struct vmxnet3_adapter *adapter) -{ - int i; - - for (i = 0; i < adapter->num_tx_queues; i++) - vmxnet3_tq_destroy(&adapter->tx_queue[i], adapter); -} - - -static void -vmxnet3_tq_init(struct vmxnet3_tx_queue *tq, - struct vmxnet3_adapter *adapter) -{ - int i; - - /* reset the tx ring contents to 0 and reset the tx ring states */ - memset(tq->tx_ring.base, 0, tq->tx_ring.size * - sizeof(struct Vmxnet3_TxDesc)); - tq->tx_ring.next2fill = tq->tx_ring.next2comp = 0; - tq->tx_ring.gen = VMXNET3_INIT_GEN; - - memset(tq->data_ring.base, 0, tq->data_ring.size * - sizeof(struct Vmxnet3_TxDataDesc)); - - /* reset the tx comp ring contents to 0 and reset comp ring states */ - memset(tq->comp_ring.base, 0, tq->comp_ring.size * - sizeof(struct Vmxnet3_TxCompDesc)); - tq->comp_ring.next2proc = 0; - tq->comp_ring.gen = VMXNET3_INIT_GEN; - - /* reset the bookkeeping data */ - memset(tq->buf_info, 0, sizeof(tq->buf_info[0]) * tq->tx_ring.size); - for (i = 0; i < tq->tx_ring.size; i++) - tq->buf_info[i].map_type = VMXNET3_MAP_NONE; - - /* stats are not reset */ -} - - -static int -vmxnet3_tq_create(struct vmxnet3_tx_queue *tq, - struct vmxnet3_adapter *adapter) -{ - BUG_ON(tq->tx_ring.base || tq->data_ring.base || - tq->comp_ring.base || tq->buf_info); - - tq->tx_ring.base = pci_alloc_consistent(adapter->pdev, tq->tx_ring.size - * sizeof(struct Vmxnet3_TxDesc), - &tq->tx_ring.basePA); - if (!tq->tx_ring.base) { - printk(KERN_ERR "%s: failed to allocate tx ring\n", - adapter->netdev->name); - goto err; - } - - tq->data_ring.base = pci_alloc_consistent(adapter->pdev, - tq->data_ring.size * - sizeof(struct Vmxnet3_TxDataDesc), - &tq->data_ring.basePA); - if (!tq->data_ring.base) { - printk(KERN_ERR "%s: failed to allocate data ring\n", - adapter->netdev->name); - goto err; - } - - tq->comp_ring.base = pci_alloc_consistent(adapter->pdev, - tq->comp_ring.size * - sizeof(struct Vmxnet3_TxCompDesc), - &tq->comp_ring.basePA); - if (!tq->comp_ring.base) { - printk(KERN_ERR "%s: failed to allocate tx comp ring\n", - adapter->netdev->name); - goto err; - } - - tq->buf_info = kcalloc(tq->tx_ring.size, sizeof(tq->buf_info[0]), - GFP_KERNEL); - if (!tq->buf_info) - goto err; - - return 0; - -err: - vmxnet3_tq_destroy(tq, adapter); - return -ENOMEM; -} - -static void -vmxnet3_tq_cleanup_all(struct vmxnet3_adapter *adapter) -{ - int i; - - for (i = 0; i < adapter->num_tx_queues; i++) - vmxnet3_tq_cleanup(&adapter->tx_queue[i], adapter); -} - -/* - * starting from ring->next2fill, allocate rx buffers for the given ring - * of the rx queue and update the rx desc. stop after @num_to_alloc buffers - * are allocated or allocation fails - */ - -static int -vmxnet3_rq_alloc_rx_buf(struct vmxnet3_rx_queue *rq, u32 ring_idx, - int num_to_alloc, struct vmxnet3_adapter *adapter) -{ - int num_allocated = 0; - struct vmxnet3_rx_buf_info *rbi_base = rq->buf_info[ring_idx]; - struct vmxnet3_cmd_ring *ring = &rq->rx_ring[ring_idx]; - u32 val; - - while (num_allocated <= num_to_alloc) { - struct vmxnet3_rx_buf_info *rbi; - union Vmxnet3_GenericDesc *gd; - - rbi = rbi_base + ring->next2fill; - gd = ring->base + ring->next2fill; - - if (rbi->buf_type == VMXNET3_RX_BUF_SKB) { - if (rbi->skb == NULL) { - rbi->skb = dev_alloc_skb(rbi->len + - NET_IP_ALIGN); - if (unlikely(rbi->skb == NULL)) { - rq->stats.rx_buf_alloc_failure++; - break; - } - rbi->skb->dev = adapter->netdev; - - skb_reserve(rbi->skb, NET_IP_ALIGN); - rbi->dma_addr = pci_map_single(adapter->pdev, - rbi->skb->data, rbi->len, - PCI_DMA_FROMDEVICE); - } else { - /* rx buffer skipped by the device */ - } - val = VMXNET3_RXD_BTYPE_HEAD << VMXNET3_RXD_BTYPE_SHIFT; - } else { - BUG_ON(rbi->buf_type != VMXNET3_RX_BUF_PAGE || - rbi->len != PAGE_SIZE); - - if (rbi->page == NULL) { - rbi->page = alloc_page(GFP_ATOMIC); - if (unlikely(rbi->page == NULL)) { - rq->stats.rx_buf_alloc_failure++; - break; - } - rbi->dma_addr = pci_map_page(adapter->pdev, - rbi->page, 0, PAGE_SIZE, - PCI_DMA_FROMDEVICE); - } else { - /* rx buffers skipped by the device */ - } - val = VMXNET3_RXD_BTYPE_BODY << VMXNET3_RXD_BTYPE_SHIFT; - } - - BUG_ON(rbi->dma_addr == 0); - gd->rxd.addr = cpu_to_le64(rbi->dma_addr); - gd->dword[2] = cpu_to_le32((!ring->gen << VMXNET3_RXD_GEN_SHIFT) - | val | rbi->len); - - /* Fill the last buffer but dont mark it ready, or else the - * device will think that the queue is full */ - if (num_allocated == num_to_alloc) - break; - - gd->dword[2] |= cpu_to_le32(ring->gen << VMXNET3_RXD_GEN_SHIFT); - num_allocated++; - vmxnet3_cmd_ring_adv_next2fill(ring); - } - rq->uncommitted[ring_idx] += num_allocated; - - dev_dbg(&adapter->netdev->dev, - "alloc_rx_buf: %d allocated, next2fill %u, next2comp " - "%u, uncommitted %u\n", num_allocated, ring->next2fill, - ring->next2comp, rq->uncommitted[ring_idx]); - - /* so that the device can distinguish a full ring and an empty ring */ - BUG_ON(num_allocated != 0 && ring->next2fill == ring->next2comp); - - return num_allocated; -} - - -static void -vmxnet3_append_frag(struct sk_buff *skb, struct Vmxnet3_RxCompDesc *rcd, - struct vmxnet3_rx_buf_info *rbi) -{ - struct skb_frag_struct *frag = skb_shinfo(skb)->frags + - skb_shinfo(skb)->nr_frags; - - BUG_ON(skb_shinfo(skb)->nr_frags >= MAX_SKB_FRAGS); - - __skb_frag_set_page(frag, rbi->page); - frag->page_offset = 0; - skb_frag_size_set(frag, rcd->len); - skb->data_len += rcd->len; - skb->truesize += PAGE_SIZE; - skb_shinfo(skb)->nr_frags++; -} - - -static void -vmxnet3_map_pkt(struct sk_buff *skb, struct vmxnet3_tx_ctx *ctx, - struct vmxnet3_tx_queue *tq, struct pci_dev *pdev, - struct vmxnet3_adapter *adapter) -{ - u32 dw2, len; - unsigned long buf_offset; - int i; - union Vmxnet3_GenericDesc *gdesc; - struct vmxnet3_tx_buf_info *tbi = NULL; - - BUG_ON(ctx->copy_size > skb_headlen(skb)); - - /* use the previous gen bit for the SOP desc */ - dw2 = (tq->tx_ring.gen ^ 0x1) << VMXNET3_TXD_GEN_SHIFT; - - ctx->sop_txd = tq->tx_ring.base + tq->tx_ring.next2fill; - gdesc = ctx->sop_txd; /* both loops below can be skipped */ - - /* no need to map the buffer if headers are copied */ - if (ctx->copy_size) { - ctx->sop_txd->txd.addr = cpu_to_le64(tq->data_ring.basePA + - tq->tx_ring.next2fill * - sizeof(struct Vmxnet3_TxDataDesc)); - ctx->sop_txd->dword[2] = cpu_to_le32(dw2 | ctx->copy_size); - ctx->sop_txd->dword[3] = 0; - - tbi = tq->buf_info + tq->tx_ring.next2fill; - tbi->map_type = VMXNET3_MAP_NONE; - - dev_dbg(&adapter->netdev->dev, - "txd[%u]: 0x%Lx 0x%x 0x%x\n", - tq->tx_ring.next2fill, - le64_to_cpu(ctx->sop_txd->txd.addr), - ctx->sop_txd->dword[2], ctx->sop_txd->dword[3]); - vmxnet3_cmd_ring_adv_next2fill(&tq->tx_ring); - - /* use the right gen for non-SOP desc */ - dw2 = tq->tx_ring.gen << VMXNET3_TXD_GEN_SHIFT; - } - - /* linear part can use multiple tx desc if it's big */ - len = skb_headlen(skb) - ctx->copy_size; - buf_offset = ctx->copy_size; - while (len) { - u32 buf_size; - - if (len < VMXNET3_MAX_TX_BUF_SIZE) { - buf_size = len; - dw2 |= len; - } else { - buf_size = VMXNET3_MAX_TX_BUF_SIZE; - /* spec says that for TxDesc.len, 0 == 2^14 */ - } - - tbi = tq->buf_info + tq->tx_ring.next2fill; - tbi->map_type = VMXNET3_MAP_SINGLE; - tbi->dma_addr = pci_map_single(adapter->pdev, - skb->data + buf_offset, buf_size, - PCI_DMA_TODEVICE); - - tbi->len = buf_size; - - gdesc = tq->tx_ring.base + tq->tx_ring.next2fill; - BUG_ON(gdesc->txd.gen == tq->tx_ring.gen); - - gdesc->txd.addr = cpu_to_le64(tbi->dma_addr); - gdesc->dword[2] = cpu_to_le32(dw2); - gdesc->dword[3] = 0; - - dev_dbg(&adapter->netdev->dev, - "txd[%u]: 0x%Lx 0x%x 0x%x\n", - tq->tx_ring.next2fill, le64_to_cpu(gdesc->txd.addr), - le32_to_cpu(gdesc->dword[2]), gdesc->dword[3]); - vmxnet3_cmd_ring_adv_next2fill(&tq->tx_ring); - dw2 = tq->tx_ring.gen << VMXNET3_TXD_GEN_SHIFT; - - len -= buf_size; - buf_offset += buf_size; - } - - for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { - const struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[i]; - - tbi = tq->buf_info + tq->tx_ring.next2fill; - tbi->map_type = VMXNET3_MAP_PAGE; - tbi->dma_addr = skb_frag_dma_map(&adapter->pdev->dev, frag, - 0, skb_frag_size(frag), - DMA_TO_DEVICE); - - tbi->len = skb_frag_size(frag); - - gdesc = tq->tx_ring.base + tq->tx_ring.next2fill; - BUG_ON(gdesc->txd.gen == tq->tx_ring.gen); - - gdesc->txd.addr = cpu_to_le64(tbi->dma_addr); - gdesc->dword[2] = cpu_to_le32(dw2 | skb_frag_size(frag)); - gdesc->dword[3] = 0; - - dev_dbg(&adapter->netdev->dev, - "txd[%u]: 0x%llu %u %u\n", - tq->tx_ring.next2fill, le64_to_cpu(gdesc->txd.addr), - le32_to_cpu(gdesc->dword[2]), gdesc->dword[3]); - vmxnet3_cmd_ring_adv_next2fill(&tq->tx_ring); - dw2 = tq->tx_ring.gen << VMXNET3_TXD_GEN_SHIFT; - } - - ctx->eop_txd = gdesc; - - /* set the last buf_info for the pkt */ - tbi->skb = skb; - tbi->sop_idx = ctx->sop_txd - tq->tx_ring.base; -} - - -/* Init all tx queues */ -static void -vmxnet3_tq_init_all(struct vmxnet3_adapter *adapter) -{ - int i; - - for (i = 0; i < adapter->num_tx_queues; i++) - vmxnet3_tq_init(&adapter->tx_queue[i], adapter); -} - - -/* - * parse and copy relevant protocol headers: - * For a tso pkt, relevant headers are L2/3/4 including options - * For a pkt requesting csum offloading, they are L2/3 and may include L4 - * if it's a TCP/UDP pkt - * - * Returns: - * -1: error happens during parsing - * 0: protocol headers parsed, but too big to be copied - * 1: protocol headers parsed and copied - * - * Other effects: - * 1. related *ctx fields are updated. - * 2. ctx->copy_size is # of bytes copied - * 3. the portion copied is guaranteed to be in the linear part - * - */ -static int -vmxnet3_parse_and_copy_hdr(struct sk_buff *skb, struct vmxnet3_tx_queue *tq, - struct vmxnet3_tx_ctx *ctx, - struct vmxnet3_adapter *adapter) -{ - struct Vmxnet3_TxDataDesc *tdd; - - if (ctx->mss) { /* TSO */ - ctx->eth_ip_hdr_size = skb_transport_offset(skb); - ctx->l4_hdr_size = tcp_hdrlen(skb); - ctx->copy_size = ctx->eth_ip_hdr_size + ctx->l4_hdr_size; - } else { - if (skb->ip_summed == CHECKSUM_PARTIAL) { - ctx->eth_ip_hdr_size = skb_checksum_start_offset(skb); - - if (ctx->ipv4) { - const struct iphdr *iph = ip_hdr(skb); - - if (iph->protocol == IPPROTO_TCP) - ctx->l4_hdr_size = tcp_hdrlen(skb); - else if (iph->protocol == IPPROTO_UDP) - ctx->l4_hdr_size = sizeof(struct udphdr); - else - ctx->l4_hdr_size = 0; - } else { - /* for simplicity, don't copy L4 headers */ - ctx->l4_hdr_size = 0; - } - ctx->copy_size = min(ctx->eth_ip_hdr_size + - ctx->l4_hdr_size, skb->len); - } else { - ctx->eth_ip_hdr_size = 0; - ctx->l4_hdr_size = 0; - /* copy as much as allowed */ - ctx->copy_size = min((unsigned int)VMXNET3_HDR_COPY_SIZE - , skb_headlen(skb)); - } - - /* make sure headers are accessible directly */ - if (unlikely(!pskb_may_pull(skb, ctx->copy_size))) - goto err; - } - - if (unlikely(ctx->copy_size > VMXNET3_HDR_COPY_SIZE)) { - tq->stats.oversized_hdr++; - ctx->copy_size = 0; - return 0; - } - - tdd = tq->data_ring.base + tq->tx_ring.next2fill; - - memcpy(tdd->data, skb->data, ctx->copy_size); - dev_dbg(&adapter->netdev->dev, - "copy %u bytes to dataRing[%u]\n", - ctx->copy_size, tq->tx_ring.next2fill); - return 1; - -err: - return -1; -} - - -static void -vmxnet3_prepare_tso(struct sk_buff *skb, - struct vmxnet3_tx_ctx *ctx) -{ - struct tcphdr *tcph = tcp_hdr(skb); - - if (ctx->ipv4) { - struct iphdr *iph = ip_hdr(skb); - - iph->check = 0; - tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr, 0, - IPPROTO_TCP, 0); - } else { - struct ipv6hdr *iph = ipv6_hdr(skb); - - tcph->check = ~csum_ipv6_magic(&iph->saddr, &iph->daddr, 0, - IPPROTO_TCP, 0); - } -} - - -/* - * Transmits a pkt thru a given tq - * Returns: - * NETDEV_TX_OK: descriptors are setup successfully - * NETDEV_TX_OK: error occurred, the pkt is dropped - * NETDEV_TX_BUSY: tx ring is full, queue is stopped - * - * Side-effects: - * 1. tx ring may be changed - * 2. tq stats may be updated accordingly - * 3. shared->txNumDeferred may be updated - */ - -static int -vmxnet3_tq_xmit(struct sk_buff *skb, struct vmxnet3_tx_queue *tq, - struct vmxnet3_adapter *adapter, struct net_device *netdev) -{ - int ret; - u32 count; - unsigned long flags; - struct vmxnet3_tx_ctx ctx; - union Vmxnet3_GenericDesc *gdesc; -#ifdef __BIG_ENDIAN_BITFIELD - /* Use temporary descriptor to avoid touching bits multiple times */ - union Vmxnet3_GenericDesc tempTxDesc; -#endif - - /* conservatively estimate # of descriptors to use */ - count = VMXNET3_TXD_NEEDED(skb_headlen(skb)) + - skb_shinfo(skb)->nr_frags + 1; - - ctx.ipv4 = (vlan_get_protocol(skb) == cpu_to_be16(ETH_P_IP)); - - ctx.mss = skb_shinfo(skb)->gso_size; - if (ctx.mss) { - if (skb_header_cloned(skb)) { - if (unlikely(pskb_expand_head(skb, 0, 0, - GFP_ATOMIC) != 0)) { - tq->stats.drop_tso++; - goto drop_pkt; - } - tq->stats.copy_skb_header++; - } - vmxnet3_prepare_tso(skb, &ctx); - } else { - if (unlikely(count > VMXNET3_MAX_TXD_PER_PKT)) { - - /* non-tso pkts must not use more than - * VMXNET3_MAX_TXD_PER_PKT entries - */ - if (skb_linearize(skb) != 0) { - tq->stats.drop_too_many_frags++; - goto drop_pkt; - } - tq->stats.linearized++; - - /* recalculate the # of descriptors to use */ - count = VMXNET3_TXD_NEEDED(skb_headlen(skb)) + 1; - } - } - - spin_lock_irqsave(&tq->tx_lock, flags); - - if (count > vmxnet3_cmd_ring_desc_avail(&tq->tx_ring)) { - tq->stats.tx_ring_full++; - dev_dbg(&adapter->netdev->dev, - "tx queue stopped on %s, next2comp %u" - " next2fill %u\n", adapter->netdev->name, - tq->tx_ring.next2comp, tq->tx_ring.next2fill); - - vmxnet3_tq_stop(tq, adapter); - spin_unlock_irqrestore(&tq->tx_lock, flags); - return NETDEV_TX_BUSY; - } - - - ret = vmxnet3_parse_and_copy_hdr(skb, tq, &ctx, adapter); - if (ret >= 0) { - BUG_ON(ret <= 0 && ctx.copy_size != 0); - /* hdrs parsed, check against other limits */ - if (ctx.mss) { - if (unlikely(ctx.eth_ip_hdr_size + ctx.l4_hdr_size > - VMXNET3_MAX_TX_BUF_SIZE)) { - goto hdr_too_big; - } - } else { - if (skb->ip_summed == CHECKSUM_PARTIAL) { - if (unlikely(ctx.eth_ip_hdr_size + - skb->csum_offset > - VMXNET3_MAX_CSUM_OFFSET)) { - goto hdr_too_big; - } - } - } - } else { - tq->stats.drop_hdr_inspect_err++; - goto unlock_drop_pkt; - } - - /* fill tx descs related to addr & len */ - vmxnet3_map_pkt(skb, &ctx, tq, adapter->pdev, adapter); - - /* setup the EOP desc */ - ctx.eop_txd->dword[3] = cpu_to_le32(VMXNET3_TXD_CQ | VMXNET3_TXD_EOP); - - /* setup the SOP desc */ -#ifdef __BIG_ENDIAN_BITFIELD - gdesc = &tempTxDesc; - gdesc->dword[2] = ctx.sop_txd->dword[2]; - gdesc->dword[3] = ctx.sop_txd->dword[3]; -#else - gdesc = ctx.sop_txd; -#endif - if (ctx.mss) { - gdesc->txd.hlen = ctx.eth_ip_hdr_size + ctx.l4_hdr_size; - gdesc->txd.om = VMXNET3_OM_TSO; - gdesc->txd.msscof = ctx.mss; - le32_add_cpu(&tq->shared->txNumDeferred, (skb->len - - gdesc->txd.hlen + ctx.mss - 1) / ctx.mss); - } else { - if (skb->ip_summed == CHECKSUM_PARTIAL) { - gdesc->txd.hlen = ctx.eth_ip_hdr_size; - gdesc->txd.om = VMXNET3_OM_CSUM; - gdesc->txd.msscof = ctx.eth_ip_hdr_size + - skb->csum_offset; - } else { - gdesc->txd.om = 0; - gdesc->txd.msscof = 0; - } - le32_add_cpu(&tq->shared->txNumDeferred, 1); - } - - if (vlan_tx_tag_present(skb)) { - gdesc->txd.ti = 1; - gdesc->txd.tci = vlan_tx_tag_get(skb); - } - - /* finally flips the GEN bit of the SOP desc. */ - gdesc->dword[2] = cpu_to_le32(le32_to_cpu(gdesc->dword[2]) ^ - VMXNET3_TXD_GEN); -#ifdef __BIG_ENDIAN_BITFIELD - /* Finished updating in bitfields of Tx Desc, so write them in original - * place. - */ - vmxnet3_TxDescToLe((struct Vmxnet3_TxDesc *)gdesc, - (struct Vmxnet3_TxDesc *)ctx.sop_txd); - gdesc = ctx.sop_txd; -#endif - dev_dbg(&adapter->netdev->dev, - "txd[%u]: SOP 0x%Lx 0x%x 0x%x\n", - (u32)((union Vmxnet3_GenericDesc *)ctx.sop_txd - - tq->tx_ring.base), le64_to_cpu(gdesc->txd.addr), - le32_to_cpu(gdesc->dword[2]), le32_to_cpu(gdesc->dword[3])); - - spin_unlock_irqrestore(&tq->tx_lock, flags); - - if (le32_to_cpu(tq->shared->txNumDeferred) >= - le32_to_cpu(tq->shared->txThreshold)) { - tq->shared->txNumDeferred = 0; - VMXNET3_WRITE_BAR0_REG(adapter, - VMXNET3_REG_TXPROD + tq->qid * 8, - tq->tx_ring.next2fill); - } - - return NETDEV_TX_OK; - -hdr_too_big: - tq->stats.drop_oversized_hdr++; -unlock_drop_pkt: - spin_unlock_irqrestore(&tq->tx_lock, flags); -drop_pkt: - tq->stats.drop_total++; - dev_kfree_skb(skb); - return NETDEV_TX_OK; -} - - -static netdev_tx_t -vmxnet3_xmit_frame(struct sk_buff *skb, struct net_device *netdev) -{ - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - - BUG_ON(skb->queue_mapping > adapter->num_tx_queues); - return vmxnet3_tq_xmit(skb, - &adapter->tx_queue[skb->queue_mapping], - adapter, netdev); -} - - -static void -vmxnet3_rx_csum(struct vmxnet3_adapter *adapter, - struct sk_buff *skb, - union Vmxnet3_GenericDesc *gdesc) -{ - if (!gdesc->rcd.cnc && adapter->netdev->features & NETIF_F_RXCSUM) { - /* typical case: TCP/UDP over IP and both csums are correct */ - if ((le32_to_cpu(gdesc->dword[3]) & VMXNET3_RCD_CSUM_OK) == - VMXNET3_RCD_CSUM_OK) { - skb->ip_summed = CHECKSUM_UNNECESSARY; - BUG_ON(!(gdesc->rcd.tcp || gdesc->rcd.udp)); - BUG_ON(!(gdesc->rcd.v4 || gdesc->rcd.v6)); - BUG_ON(gdesc->rcd.frg); - } else { - if (gdesc->rcd.csum) { - skb->csum = htons(gdesc->rcd.csum); - skb->ip_summed = CHECKSUM_PARTIAL; - } else { - skb_checksum_none_assert(skb); - } - } - } else { - skb_checksum_none_assert(skb); - } -} - - -static void -vmxnet3_rx_error(struct vmxnet3_rx_queue *rq, struct Vmxnet3_RxCompDesc *rcd, - struct vmxnet3_rx_ctx *ctx, struct vmxnet3_adapter *adapter) -{ - rq->stats.drop_err++; - if (!rcd->fcs) - rq->stats.drop_fcs++; - - rq->stats.drop_total++; - - /* - * We do not unmap and chain the rx buffer to the skb. - * We basically pretend this buffer is not used and will be recycled - * by vmxnet3_rq_alloc_rx_buf() - */ - - /* - * ctx->skb may be NULL if this is the first and the only one - * desc for the pkt - */ - if (ctx->skb) - dev_kfree_skb_irq(ctx->skb); - - ctx->skb = NULL; -} - - -static int -vmxnet3_rq_rx_complete(struct vmxnet3_rx_queue *rq, - struct vmxnet3_adapter *adapter, int quota) -{ - static const u32 rxprod_reg[2] = { - VMXNET3_REG_RXPROD, VMXNET3_REG_RXPROD2 - }; - u32 num_rxd = 0; - bool skip_page_frags = false; - struct Vmxnet3_RxCompDesc *rcd; - struct vmxnet3_rx_ctx *ctx = &rq->rx_ctx; -#ifdef __BIG_ENDIAN_BITFIELD - struct Vmxnet3_RxDesc rxCmdDesc; - struct Vmxnet3_RxCompDesc rxComp; -#endif - vmxnet3_getRxComp(rcd, &rq->comp_ring.base[rq->comp_ring.next2proc].rcd, - &rxComp); - while (rcd->gen == rq->comp_ring.gen) { - struct vmxnet3_rx_buf_info *rbi; - struct sk_buff *skb, *new_skb = NULL; - struct page *new_page = NULL; - int num_to_alloc; - struct Vmxnet3_RxDesc *rxd; - u32 idx, ring_idx; - struct vmxnet3_cmd_ring *ring = NULL; - if (num_rxd >= quota) { - /* we may stop even before we see the EOP desc of - * the current pkt - */ - break; - } - num_rxd++; - BUG_ON(rcd->rqID != rq->qid && rcd->rqID != rq->qid2); - idx = rcd->rxdIdx; - ring_idx = rcd->rqID < adapter->num_rx_queues ? 0 : 1; - ring = rq->rx_ring + ring_idx; - vmxnet3_getRxDesc(rxd, &rq->rx_ring[ring_idx].base[idx].rxd, - &rxCmdDesc); - rbi = rq->buf_info[ring_idx] + idx; - - BUG_ON(rxd->addr != rbi->dma_addr || - rxd->len != rbi->len); - - if (unlikely(rcd->eop && rcd->err)) { - vmxnet3_rx_error(rq, rcd, ctx, adapter); - goto rcd_done; - } - - if (rcd->sop) { /* first buf of the pkt */ - BUG_ON(rxd->btype != VMXNET3_RXD_BTYPE_HEAD || - rcd->rqID != rq->qid); - - BUG_ON(rbi->buf_type != VMXNET3_RX_BUF_SKB); - BUG_ON(ctx->skb != NULL || rbi->skb == NULL); - - if (unlikely(rcd->len == 0)) { - /* Pretend the rx buffer is skipped. */ - BUG_ON(!(rcd->sop && rcd->eop)); - dev_dbg(&adapter->netdev->dev, - "rxRing[%u][%u] 0 length\n", - ring_idx, idx); - goto rcd_done; - } - - skip_page_frags = false; - ctx->skb = rbi->skb; - new_skb = dev_alloc_skb(rbi->len + NET_IP_ALIGN); - if (new_skb == NULL) { - /* Skb allocation failed, do not handover this - * skb to stack. Reuse it. Drop the existing pkt - */ - rq->stats.rx_buf_alloc_failure++; - ctx->skb = NULL; - rq->stats.drop_total++; - skip_page_frags = true; - goto rcd_done; - } - - pci_unmap_single(adapter->pdev, rbi->dma_addr, rbi->len, - PCI_DMA_FROMDEVICE); - - skb_put(ctx->skb, rcd->len); - - /* Immediate refill */ - new_skb->dev = adapter->netdev; - skb_reserve(new_skb, NET_IP_ALIGN); - rbi->skb = new_skb; - rbi->dma_addr = pci_map_single(adapter->pdev, - rbi->skb->data, rbi->len, - PCI_DMA_FROMDEVICE); - rxd->addr = cpu_to_le64(rbi->dma_addr); - rxd->len = rbi->len; - - } else { - BUG_ON(ctx->skb == NULL && !skip_page_frags); - - /* non SOP buffer must be type 1 in most cases */ - BUG_ON(rbi->buf_type != VMXNET3_RX_BUF_PAGE); - BUG_ON(rxd->btype != VMXNET3_RXD_BTYPE_BODY); - - /* If an sop buffer was dropped, skip all - * following non-sop fragments. They will be reused. - */ - if (skip_page_frags) - goto rcd_done; - - new_page = alloc_page(GFP_ATOMIC); - if (unlikely(new_page == NULL)) { - /* Replacement page frag could not be allocated. - * Reuse this page. Drop the pkt and free the - * skb which contained this page as a frag. Skip - * processing all the following non-sop frags. - */ - rq->stats.rx_buf_alloc_failure++; - dev_kfree_skb(ctx->skb); - ctx->skb = NULL; - skip_page_frags = true; - goto rcd_done; - } - - if (rcd->len) { - pci_unmap_page(adapter->pdev, - rbi->dma_addr, rbi->len, - PCI_DMA_FROMDEVICE); - - vmxnet3_append_frag(ctx->skb, rcd, rbi); - } - - /* Immediate refill */ - rbi->page = new_page; - rbi->dma_addr = pci_map_page(adapter->pdev, rbi->page, - 0, PAGE_SIZE, - PCI_DMA_FROMDEVICE); - rxd->addr = cpu_to_le64(rbi->dma_addr); - rxd->len = rbi->len; - } - - - skb = ctx->skb; - if (rcd->eop) { - skb->len += skb->data_len; - - vmxnet3_rx_csum(adapter, skb, - (union Vmxnet3_GenericDesc *)rcd); - skb->protocol = eth_type_trans(skb, adapter->netdev); - - if (unlikely(rcd->ts)) - __vlan_hwaccel_put_tag(skb, rcd->tci); - - if (adapter->netdev->features & NETIF_F_LRO) - netif_receive_skb(skb); - else - napi_gro_receive(&rq->napi, skb); - - ctx->skb = NULL; - } - -rcd_done: - /* device may have skipped some rx descs */ - ring->next2comp = idx; - num_to_alloc = vmxnet3_cmd_ring_desc_avail(ring); - ring = rq->rx_ring + ring_idx; - while (num_to_alloc) { - vmxnet3_getRxDesc(rxd, &ring->base[ring->next2fill].rxd, - &rxCmdDesc); - BUG_ON(!rxd->addr); - - /* Recv desc is ready to be used by the device */ - rxd->gen = ring->gen; - vmxnet3_cmd_ring_adv_next2fill(ring); - num_to_alloc--; - } - - /* if needed, update the register */ - if (unlikely(rq->shared->updateRxProd)) { - VMXNET3_WRITE_BAR0_REG(adapter, - rxprod_reg[ring_idx] + rq->qid * 8, - ring->next2fill); - rq->uncommitted[ring_idx] = 0; - } - - vmxnet3_comp_ring_adv_next2proc(&rq->comp_ring); - vmxnet3_getRxComp(rcd, - &rq->comp_ring.base[rq->comp_ring.next2proc].rcd, &rxComp); - } - - return num_rxd; -} - - -static void -vmxnet3_rq_cleanup(struct vmxnet3_rx_queue *rq, - struct vmxnet3_adapter *adapter) -{ - u32 i, ring_idx; - struct Vmxnet3_RxDesc *rxd; - - for (ring_idx = 0; ring_idx < 2; ring_idx++) { - for (i = 0; i < rq->rx_ring[ring_idx].size; i++) { -#ifdef __BIG_ENDIAN_BITFIELD - struct Vmxnet3_RxDesc rxDesc; -#endif - vmxnet3_getRxDesc(rxd, - &rq->rx_ring[ring_idx].base[i].rxd, &rxDesc); - - if (rxd->btype == VMXNET3_RXD_BTYPE_HEAD && - rq->buf_info[ring_idx][i].skb) { - pci_unmap_single(adapter->pdev, rxd->addr, - rxd->len, PCI_DMA_FROMDEVICE); - dev_kfree_skb(rq->buf_info[ring_idx][i].skb); - rq->buf_info[ring_idx][i].skb = NULL; - } else if (rxd->btype == VMXNET3_RXD_BTYPE_BODY && - rq->buf_info[ring_idx][i].page) { - pci_unmap_page(adapter->pdev, rxd->addr, - rxd->len, PCI_DMA_FROMDEVICE); - put_page(rq->buf_info[ring_idx][i].page); - rq->buf_info[ring_idx][i].page = NULL; - } - } - - rq->rx_ring[ring_idx].gen = VMXNET3_INIT_GEN; - rq->rx_ring[ring_idx].next2fill = - rq->rx_ring[ring_idx].next2comp = 0; - rq->uncommitted[ring_idx] = 0; - } - - rq->comp_ring.gen = VMXNET3_INIT_GEN; - rq->comp_ring.next2proc = 0; -} - - -static void -vmxnet3_rq_cleanup_all(struct vmxnet3_adapter *adapter) -{ - int i; - - for (i = 0; i < adapter->num_rx_queues; i++) - vmxnet3_rq_cleanup(&adapter->rx_queue[i], adapter); -} - - -void vmxnet3_rq_destroy(struct vmxnet3_rx_queue *rq, - struct vmxnet3_adapter *adapter) -{ - int i; - int j; - - /* all rx buffers must have already been freed */ - for (i = 0; i < 2; i++) { - if (rq->buf_info[i]) { - for (j = 0; j < rq->rx_ring[i].size; j++) - BUG_ON(rq->buf_info[i][j].page != NULL); - } - } - - - kfree(rq->buf_info[0]); - - for (i = 0; i < 2; i++) { - if (rq->rx_ring[i].base) { - pci_free_consistent(adapter->pdev, rq->rx_ring[i].size - * sizeof(struct Vmxnet3_RxDesc), - rq->rx_ring[i].base, - rq->rx_ring[i].basePA); - rq->rx_ring[i].base = NULL; - } - rq->buf_info[i] = NULL; - } - - if (rq->comp_ring.base) { - pci_free_consistent(adapter->pdev, rq->comp_ring.size * - sizeof(struct Vmxnet3_RxCompDesc), - rq->comp_ring.base, rq->comp_ring.basePA); - rq->comp_ring.base = NULL; - } -} - - -static int -vmxnet3_rq_init(struct vmxnet3_rx_queue *rq, - struct vmxnet3_adapter *adapter) -{ - int i; - - /* initialize buf_info */ - for (i = 0; i < rq->rx_ring[0].size; i++) { - - /* 1st buf for a pkt is skbuff */ - if (i % adapter->rx_buf_per_pkt == 0) { - rq->buf_info[0][i].buf_type = VMXNET3_RX_BUF_SKB; - rq->buf_info[0][i].len = adapter->skb_buf_size; - } else { /* subsequent bufs for a pkt is frag */ - rq->buf_info[0][i].buf_type = VMXNET3_RX_BUF_PAGE; - rq->buf_info[0][i].len = PAGE_SIZE; - } - } - for (i = 0; i < rq->rx_ring[1].size; i++) { - rq->buf_info[1][i].buf_type = VMXNET3_RX_BUF_PAGE; - rq->buf_info[1][i].len = PAGE_SIZE; - } - - /* reset internal state and allocate buffers for both rings */ - for (i = 0; i < 2; i++) { - rq->rx_ring[i].next2fill = rq->rx_ring[i].next2comp = 0; - rq->uncommitted[i] = 0; - - memset(rq->rx_ring[i].base, 0, rq->rx_ring[i].size * - sizeof(struct Vmxnet3_RxDesc)); - rq->rx_ring[i].gen = VMXNET3_INIT_GEN; - } - if (vmxnet3_rq_alloc_rx_buf(rq, 0, rq->rx_ring[0].size - 1, - adapter) == 0) { - /* at least has 1 rx buffer for the 1st ring */ - return -ENOMEM; - } - vmxnet3_rq_alloc_rx_buf(rq, 1, rq->rx_ring[1].size - 1, adapter); - - /* reset the comp ring */ - rq->comp_ring.next2proc = 0; - memset(rq->comp_ring.base, 0, rq->comp_ring.size * - sizeof(struct Vmxnet3_RxCompDesc)); - rq->comp_ring.gen = VMXNET3_INIT_GEN; - - /* reset rxctx */ - rq->rx_ctx.skb = NULL; - - /* stats are not reset */ - return 0; -} - - -static int -vmxnet3_rq_init_all(struct vmxnet3_adapter *adapter) -{ - int i, err = 0; - - for (i = 0; i < adapter->num_rx_queues; i++) { - err = vmxnet3_rq_init(&adapter->rx_queue[i], adapter); - if (unlikely(err)) { - dev_err(&adapter->netdev->dev, "%s: failed to " - "initialize rx queue%i\n", - adapter->netdev->name, i); - break; - } - } - return err; - -} - - -static int -vmxnet3_rq_create(struct vmxnet3_rx_queue *rq, struct vmxnet3_adapter *adapter) -{ - int i; - size_t sz; - struct vmxnet3_rx_buf_info *bi; - - for (i = 0; i < 2; i++) { - - sz = rq->rx_ring[i].size * sizeof(struct Vmxnet3_RxDesc); - rq->rx_ring[i].base = pci_alloc_consistent(adapter->pdev, sz, - &rq->rx_ring[i].basePA); - if (!rq->rx_ring[i].base) { - printk(KERN_ERR "%s: failed to allocate rx ring %d\n", - adapter->netdev->name, i); - goto err; - } - } - - sz = rq->comp_ring.size * sizeof(struct Vmxnet3_RxCompDesc); - rq->comp_ring.base = pci_alloc_consistent(adapter->pdev, sz, - &rq->comp_ring.basePA); - if (!rq->comp_ring.base) { - printk(KERN_ERR "%s: failed to allocate rx comp ring\n", - adapter->netdev->name); - goto err; - } - - sz = sizeof(struct vmxnet3_rx_buf_info) * (rq->rx_ring[0].size + - rq->rx_ring[1].size); - bi = kzalloc(sz, GFP_KERNEL); - if (!bi) - goto err; - - rq->buf_info[0] = bi; - rq->buf_info[1] = bi + rq->rx_ring[0].size; - - return 0; - -err: - vmxnet3_rq_destroy(rq, adapter); - return -ENOMEM; -} - - -static int -vmxnet3_rq_create_all(struct vmxnet3_adapter *adapter) -{ - int i, err = 0; - - for (i = 0; i < adapter->num_rx_queues; i++) { - err = vmxnet3_rq_create(&adapter->rx_queue[i], adapter); - if (unlikely(err)) { - dev_err(&adapter->netdev->dev, - "%s: failed to create rx queue%i\n", - adapter->netdev->name, i); - goto err_out; - } - } - return err; -err_out: - vmxnet3_rq_destroy_all(adapter); - return err; - -} - -/* Multiple queue aware polling function for tx and rx */ - -static int -vmxnet3_do_poll(struct vmxnet3_adapter *adapter, int budget) -{ - int rcd_done = 0, i; - if (unlikely(adapter->shared->ecr)) - vmxnet3_process_events(adapter); - for (i = 0; i < adapter->num_tx_queues; i++) - vmxnet3_tq_tx_complete(&adapter->tx_queue[i], adapter); - - for (i = 0; i < adapter->num_rx_queues; i++) - rcd_done += vmxnet3_rq_rx_complete(&adapter->rx_queue[i], - adapter, budget); - return rcd_done; -} - - -static int -vmxnet3_poll(struct napi_struct *napi, int budget) -{ - struct vmxnet3_rx_queue *rx_queue = container_of(napi, - struct vmxnet3_rx_queue, napi); - int rxd_done; - - rxd_done = vmxnet3_do_poll(rx_queue->adapter, budget); - - if (rxd_done < budget) { - napi_complete(napi); - vmxnet3_enable_all_intrs(rx_queue->adapter); - } - return rxd_done; -} - -/* - * NAPI polling function for MSI-X mode with multiple Rx queues - * Returns the # of the NAPI credit consumed (# of rx descriptors processed) - */ - -static int -vmxnet3_poll_rx_only(struct napi_struct *napi, int budget) -{ - struct vmxnet3_rx_queue *rq = container_of(napi, - struct vmxnet3_rx_queue, napi); - struct vmxnet3_adapter *adapter = rq->adapter; - int rxd_done; - - /* When sharing interrupt with corresponding tx queue, process - * tx completions in that queue as well - */ - if (adapter->share_intr == VMXNET3_INTR_BUDDYSHARE) { - struct vmxnet3_tx_queue *tq = - &adapter->tx_queue[rq - adapter->rx_queue]; - vmxnet3_tq_tx_complete(tq, adapter); - } - - rxd_done = vmxnet3_rq_rx_complete(rq, adapter, budget); - - if (rxd_done < budget) { - napi_complete(napi); - vmxnet3_enable_intr(adapter, rq->comp_ring.intr_idx); - } - return rxd_done; -} - - -#ifdef CONFIG_PCI_MSI - -/* - * Handle completion interrupts on tx queues - * Returns whether or not the intr is handled - */ - -static irqreturn_t -vmxnet3_msix_tx(int irq, void *data) -{ - struct vmxnet3_tx_queue *tq = data; - struct vmxnet3_adapter *adapter = tq->adapter; - - if (adapter->intr.mask_mode == VMXNET3_IMM_ACTIVE) - vmxnet3_disable_intr(adapter, tq->comp_ring.intr_idx); - - /* Handle the case where only one irq is allocate for all tx queues */ - if (adapter->share_intr == VMXNET3_INTR_TXSHARE) { - int i; - for (i = 0; i < adapter->num_tx_queues; i++) { - struct vmxnet3_tx_queue *txq = &adapter->tx_queue[i]; - vmxnet3_tq_tx_complete(txq, adapter); - } - } else { - vmxnet3_tq_tx_complete(tq, adapter); - } - vmxnet3_enable_intr(adapter, tq->comp_ring.intr_idx); - - return IRQ_HANDLED; -} - - -/* - * Handle completion interrupts on rx queues. Returns whether or not the - * intr is handled - */ - -static irqreturn_t -vmxnet3_msix_rx(int irq, void *data) -{ - struct vmxnet3_rx_queue *rq = data; - struct vmxnet3_adapter *adapter = rq->adapter; - - /* disable intr if needed */ - if (adapter->intr.mask_mode == VMXNET3_IMM_ACTIVE) - vmxnet3_disable_intr(adapter, rq->comp_ring.intr_idx); - napi_schedule(&rq->napi); - - return IRQ_HANDLED; -} - -/* - *---------------------------------------------------------------------------- - * - * vmxnet3_msix_event -- - * - * vmxnet3 msix event intr handler - * - * Result: - * whether or not the intr is handled - * - *---------------------------------------------------------------------------- - */ - -static irqreturn_t -vmxnet3_msix_event(int irq, void *data) -{ - struct net_device *dev = data; - struct vmxnet3_adapter *adapter = netdev_priv(dev); - - /* disable intr if needed */ - if (adapter->intr.mask_mode == VMXNET3_IMM_ACTIVE) - vmxnet3_disable_intr(adapter, adapter->intr.event_intr_idx); - - if (adapter->shared->ecr) - vmxnet3_process_events(adapter); - - vmxnet3_enable_intr(adapter, adapter->intr.event_intr_idx); - - return IRQ_HANDLED; -} - -#endif /* CONFIG_PCI_MSI */ - - -/* Interrupt handler for vmxnet3 */ -static irqreturn_t -vmxnet3_intr(int irq, void *dev_id) -{ - struct net_device *dev = dev_id; - struct vmxnet3_adapter *adapter = netdev_priv(dev); - - if (adapter->intr.type == VMXNET3_IT_INTX) { - u32 icr = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_ICR); - if (unlikely(icr == 0)) - /* not ours */ - return IRQ_NONE; - } - - - /* disable intr if needed */ - if (adapter->intr.mask_mode == VMXNET3_IMM_ACTIVE) - vmxnet3_disable_all_intrs(adapter); - - napi_schedule(&adapter->rx_queue[0].napi); - - return IRQ_HANDLED; -} - -#ifdef CONFIG_NET_POLL_CONTROLLER - -/* netpoll callback. */ -static void -vmxnet3_netpoll(struct net_device *netdev) -{ - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - - if (adapter->intr.mask_mode == VMXNET3_IMM_ACTIVE) - vmxnet3_disable_all_intrs(adapter); - - vmxnet3_do_poll(adapter, adapter->rx_queue[0].rx_ring[0].size); - vmxnet3_enable_all_intrs(adapter); - -} -#endif /* CONFIG_NET_POLL_CONTROLLER */ - -static int -vmxnet3_request_irqs(struct vmxnet3_adapter *adapter) -{ - struct vmxnet3_intr *intr = &adapter->intr; - int err = 0, i; - int vector = 0; - -#ifdef CONFIG_PCI_MSI - if (adapter->intr.type == VMXNET3_IT_MSIX) { - for (i = 0; i < adapter->num_tx_queues; i++) { - if (adapter->share_intr != VMXNET3_INTR_BUDDYSHARE) { - sprintf(adapter->tx_queue[i].name, "%s-tx-%d", - adapter->netdev->name, vector); - err = request_irq( - intr->msix_entries[vector].vector, - vmxnet3_msix_tx, 0, - adapter->tx_queue[i].name, - &adapter->tx_queue[i]); - } else { - sprintf(adapter->tx_queue[i].name, "%s-rxtx-%d", - adapter->netdev->name, vector); - } - if (err) { - dev_err(&adapter->netdev->dev, - "Failed to request irq for MSIX, %s, " - "error %d\n", - adapter->tx_queue[i].name, err); - return err; - } - - /* Handle the case where only 1 MSIx was allocated for - * all tx queues */ - if (adapter->share_intr == VMXNET3_INTR_TXSHARE) { - for (; i < adapter->num_tx_queues; i++) - adapter->tx_queue[i].comp_ring.intr_idx - = vector; - vector++; - break; - } else { - adapter->tx_queue[i].comp_ring.intr_idx - = vector++; - } - } - if (adapter->share_intr == VMXNET3_INTR_BUDDYSHARE) - vector = 0; - - for (i = 0; i < adapter->num_rx_queues; i++) { - if (adapter->share_intr != VMXNET3_INTR_BUDDYSHARE) - sprintf(adapter->rx_queue[i].name, "%s-rx-%d", - adapter->netdev->name, vector); - else - sprintf(adapter->rx_queue[i].name, "%s-rxtx-%d", - adapter->netdev->name, vector); - err = request_irq(intr->msix_entries[vector].vector, - vmxnet3_msix_rx, 0, - adapter->rx_queue[i].name, - &(adapter->rx_queue[i])); - if (err) { - printk(KERN_ERR "Failed to request irq for MSIX" - ", %s, error %d\n", - adapter->rx_queue[i].name, err); - return err; - } - - adapter->rx_queue[i].comp_ring.intr_idx = vector++; - } - - sprintf(intr->event_msi_vector_name, "%s-event-%d", - adapter->netdev->name, vector); - err = request_irq(intr->msix_entries[vector].vector, - vmxnet3_msix_event, 0, - intr->event_msi_vector_name, adapter->netdev); - intr->event_intr_idx = vector; - - } else if (intr->type == VMXNET3_IT_MSI) { - adapter->num_rx_queues = 1; - err = request_irq(adapter->pdev->irq, vmxnet3_intr, 0, - adapter->netdev->name, adapter->netdev); - } else { -#endif - adapter->num_rx_queues = 1; - err = request_irq(adapter->pdev->irq, vmxnet3_intr, - IRQF_SHARED, adapter->netdev->name, - adapter->netdev); -#ifdef CONFIG_PCI_MSI - } -#endif - intr->num_intrs = vector + 1; - if (err) { - printk(KERN_ERR "Failed to request irq %s (intr type:%d), error" - ":%d\n", adapter->netdev->name, intr->type, err); - } else { - /* Number of rx queues will not change after this */ - for (i = 0; i < adapter->num_rx_queues; i++) { - struct vmxnet3_rx_queue *rq = &adapter->rx_queue[i]; - rq->qid = i; - rq->qid2 = i + adapter->num_rx_queues; - } - - - - /* init our intr settings */ - for (i = 0; i < intr->num_intrs; i++) - intr->mod_levels[i] = UPT1_IML_ADAPTIVE; - if (adapter->intr.type != VMXNET3_IT_MSIX) { - adapter->intr.event_intr_idx = 0; - for (i = 0; i < adapter->num_tx_queues; i++) - adapter->tx_queue[i].comp_ring.intr_idx = 0; - adapter->rx_queue[0].comp_ring.intr_idx = 0; - } - - printk(KERN_INFO "%s: intr type %u, mode %u, %u vectors " - "allocated\n", adapter->netdev->name, intr->type, - intr->mask_mode, intr->num_intrs); - } - - return err; -} - - -static void -vmxnet3_free_irqs(struct vmxnet3_adapter *adapter) -{ - struct vmxnet3_intr *intr = &adapter->intr; - BUG_ON(intr->type == VMXNET3_IT_AUTO || intr->num_intrs <= 0); - - switch (intr->type) { -#ifdef CONFIG_PCI_MSI - case VMXNET3_IT_MSIX: - { - int i, vector = 0; - - if (adapter->share_intr != VMXNET3_INTR_BUDDYSHARE) { - for (i = 0; i < adapter->num_tx_queues; i++) { - free_irq(intr->msix_entries[vector++].vector, - &(adapter->tx_queue[i])); - if (adapter->share_intr == VMXNET3_INTR_TXSHARE) - break; - } - } - - for (i = 0; i < adapter->num_rx_queues; i++) { - free_irq(intr->msix_entries[vector++].vector, - &(adapter->rx_queue[i])); - } - - free_irq(intr->msix_entries[vector].vector, - adapter->netdev); - BUG_ON(vector >= intr->num_intrs); - break; - } -#endif - case VMXNET3_IT_MSI: - free_irq(adapter->pdev->irq, adapter->netdev); - break; - case VMXNET3_IT_INTX: - free_irq(adapter->pdev->irq, adapter->netdev); - break; - default: - BUG_ON(true); - } -} - - -static void -vmxnet3_restore_vlan(struct vmxnet3_adapter *adapter) -{ - u32 *vfTable = adapter->shared->devRead.rxFilterConf.vfTable; - u16 vid; - - /* allow untagged pkts */ - VMXNET3_SET_VFTABLE_ENTRY(vfTable, 0); - - for_each_set_bit(vid, adapter->active_vlans, VLAN_N_VID) - VMXNET3_SET_VFTABLE_ENTRY(vfTable, vid); -} - - -static int -vmxnet3_vlan_rx_add_vid(struct net_device *netdev, u16 vid) -{ - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - - if (!(netdev->flags & IFF_PROMISC)) { - u32 *vfTable = adapter->shared->devRead.rxFilterConf.vfTable; - unsigned long flags; - - VMXNET3_SET_VFTABLE_ENTRY(vfTable, vid); - spin_lock_irqsave(&adapter->cmd_lock, flags); - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, - VMXNET3_CMD_UPDATE_VLAN_FILTERS); - spin_unlock_irqrestore(&adapter->cmd_lock, flags); - } - - set_bit(vid, adapter->active_vlans); - - return 0; -} - - -static int -vmxnet3_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) -{ - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - - if (!(netdev->flags & IFF_PROMISC)) { - u32 *vfTable = adapter->shared->devRead.rxFilterConf.vfTable; - unsigned long flags; - - VMXNET3_CLEAR_VFTABLE_ENTRY(vfTable, vid); - spin_lock_irqsave(&adapter->cmd_lock, flags); - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, - VMXNET3_CMD_UPDATE_VLAN_FILTERS); - spin_unlock_irqrestore(&adapter->cmd_lock, flags); - } - - clear_bit(vid, adapter->active_vlans); - - return 0; -} - - -static u8 * -vmxnet3_copy_mc(struct net_device *netdev) -{ - u8 *buf = NULL; - u32 sz = netdev_mc_count(netdev) * ETH_ALEN; - - /* struct Vmxnet3_RxFilterConf.mfTableLen is u16. */ - if (sz <= 0xffff) { - /* We may be called with BH disabled */ - buf = kmalloc(sz, GFP_ATOMIC); - if (buf) { - struct netdev_hw_addr *ha; - int i = 0; - - netdev_for_each_mc_addr(ha, netdev) - memcpy(buf + i++ * ETH_ALEN, ha->addr, - ETH_ALEN); - } - } - return buf; -} - - -static void -vmxnet3_set_mc(struct net_device *netdev) -{ - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - unsigned long flags; - struct Vmxnet3_RxFilterConf *rxConf = - &adapter->shared->devRead.rxFilterConf; - u8 *new_table = NULL; - u32 new_mode = VMXNET3_RXM_UCAST; - - if (netdev->flags & IFF_PROMISC) { - u32 *vfTable = adapter->shared->devRead.rxFilterConf.vfTable; - memset(vfTable, 0, VMXNET3_VFT_SIZE * sizeof(*vfTable)); - - new_mode |= VMXNET3_RXM_PROMISC; - } else { - vmxnet3_restore_vlan(adapter); - } - - if (netdev->flags & IFF_BROADCAST) - new_mode |= VMXNET3_RXM_BCAST; - - if (netdev->flags & IFF_ALLMULTI) - new_mode |= VMXNET3_RXM_ALL_MULTI; - else - if (!netdev_mc_empty(netdev)) { - new_table = vmxnet3_copy_mc(netdev); - if (new_table) { - new_mode |= VMXNET3_RXM_MCAST; - rxConf->mfTableLen = cpu_to_le16( - netdev_mc_count(netdev) * ETH_ALEN); - rxConf->mfTablePA = cpu_to_le64(virt_to_phys( - new_table)); - } else { - printk(KERN_INFO "%s: failed to copy mcast list" - ", setting ALL_MULTI\n", netdev->name); - new_mode |= VMXNET3_RXM_ALL_MULTI; - } - } - - - if (!(new_mode & VMXNET3_RXM_MCAST)) { - rxConf->mfTableLen = 0; - rxConf->mfTablePA = 0; - } - - spin_lock_irqsave(&adapter->cmd_lock, flags); - if (new_mode != rxConf->rxMode) { - rxConf->rxMode = cpu_to_le32(new_mode); - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, - VMXNET3_CMD_UPDATE_RX_MODE); - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, - VMXNET3_CMD_UPDATE_VLAN_FILTERS); - } - - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, - VMXNET3_CMD_UPDATE_MAC_FILTERS); - spin_unlock_irqrestore(&adapter->cmd_lock, flags); - - kfree(new_table); -} - -void -vmxnet3_rq_destroy_all(struct vmxnet3_adapter *adapter) -{ - int i; - - for (i = 0; i < adapter->num_rx_queues; i++) - vmxnet3_rq_destroy(&adapter->rx_queue[i], adapter); -} - - -/* - * Set up driver_shared based on settings in adapter. - */ - -static void -vmxnet3_setup_driver_shared(struct vmxnet3_adapter *adapter) -{ - struct Vmxnet3_DriverShared *shared = adapter->shared; - struct Vmxnet3_DSDevRead *devRead = &shared->devRead; - struct Vmxnet3_TxQueueConf *tqc; - struct Vmxnet3_RxQueueConf *rqc; - int i; - - memset(shared, 0, sizeof(*shared)); - - /* driver settings */ - shared->magic = cpu_to_le32(VMXNET3_REV1_MAGIC); - devRead->misc.driverInfo.version = cpu_to_le32( - VMXNET3_DRIVER_VERSION_NUM); - devRead->misc.driverInfo.gos.gosBits = (sizeof(void *) == 4 ? - VMXNET3_GOS_BITS_32 : VMXNET3_GOS_BITS_64); - devRead->misc.driverInfo.gos.gosType = VMXNET3_GOS_TYPE_LINUX; - *((u32 *)&devRead->misc.driverInfo.gos) = cpu_to_le32( - *((u32 *)&devRead->misc.driverInfo.gos)); - devRead->misc.driverInfo.vmxnet3RevSpt = cpu_to_le32(1); - devRead->misc.driverInfo.uptVerSpt = cpu_to_le32(1); - - devRead->misc.ddPA = cpu_to_le64(virt_to_phys(adapter)); - devRead->misc.ddLen = cpu_to_le32(sizeof(struct vmxnet3_adapter)); - - /* set up feature flags */ - if (adapter->netdev->features & NETIF_F_RXCSUM) - devRead->misc.uptFeatures |= UPT1_F_RXCSUM; - - if (adapter->netdev->features & NETIF_F_LRO) { - devRead->misc.uptFeatures |= UPT1_F_LRO; - devRead->misc.maxNumRxSG = cpu_to_le16(1 + MAX_SKB_FRAGS); - } - if (adapter->netdev->features & NETIF_F_HW_VLAN_RX) - devRead->misc.uptFeatures |= UPT1_F_RXVLAN; - - devRead->misc.mtu = cpu_to_le32(adapter->netdev->mtu); - devRead->misc.queueDescPA = cpu_to_le64(adapter->queue_desc_pa); - devRead->misc.queueDescLen = cpu_to_le32( - adapter->num_tx_queues * sizeof(struct Vmxnet3_TxQueueDesc) + - adapter->num_rx_queues * sizeof(struct Vmxnet3_RxQueueDesc)); - - /* tx queue settings */ - devRead->misc.numTxQueues = adapter->num_tx_queues; - for (i = 0; i < adapter->num_tx_queues; i++) { - struct vmxnet3_tx_queue *tq = &adapter->tx_queue[i]; - BUG_ON(adapter->tx_queue[i].tx_ring.base == NULL); - tqc = &adapter->tqd_start[i].conf; - tqc->txRingBasePA = cpu_to_le64(tq->tx_ring.basePA); - tqc->dataRingBasePA = cpu_to_le64(tq->data_ring.basePA); - tqc->compRingBasePA = cpu_to_le64(tq->comp_ring.basePA); - tqc->ddPA = cpu_to_le64(virt_to_phys(tq->buf_info)); - tqc->txRingSize = cpu_to_le32(tq->tx_ring.size); - tqc->dataRingSize = cpu_to_le32(tq->data_ring.size); - tqc->compRingSize = cpu_to_le32(tq->comp_ring.size); - tqc->ddLen = cpu_to_le32( - sizeof(struct vmxnet3_tx_buf_info) * - tqc->txRingSize); - tqc->intrIdx = tq->comp_ring.intr_idx; - } - - /* rx queue settings */ - devRead->misc.numRxQueues = adapter->num_rx_queues; - for (i = 0; i < adapter->num_rx_queues; i++) { - struct vmxnet3_rx_queue *rq = &adapter->rx_queue[i]; - rqc = &adapter->rqd_start[i].conf; - rqc->rxRingBasePA[0] = cpu_to_le64(rq->rx_ring[0].basePA); - rqc->rxRingBasePA[1] = cpu_to_le64(rq->rx_ring[1].basePA); - rqc->compRingBasePA = cpu_to_le64(rq->comp_ring.basePA); - rqc->ddPA = cpu_to_le64(virt_to_phys( - rq->buf_info)); - rqc->rxRingSize[0] = cpu_to_le32(rq->rx_ring[0].size); - rqc->rxRingSize[1] = cpu_to_le32(rq->rx_ring[1].size); - rqc->compRingSize = cpu_to_le32(rq->comp_ring.size); - rqc->ddLen = cpu_to_le32( - sizeof(struct vmxnet3_rx_buf_info) * - (rqc->rxRingSize[0] + - rqc->rxRingSize[1])); - rqc->intrIdx = rq->comp_ring.intr_idx; - } - -#ifdef VMXNET3_RSS - memset(adapter->rss_conf, 0, sizeof(*adapter->rss_conf)); - - if (adapter->rss) { - struct UPT1_RSSConf *rssConf = adapter->rss_conf; - devRead->misc.uptFeatures |= UPT1_F_RSS; - devRead->misc.numRxQueues = adapter->num_rx_queues; - rssConf->hashType = UPT1_RSS_HASH_TYPE_TCP_IPV4 | - UPT1_RSS_HASH_TYPE_IPV4 | - UPT1_RSS_HASH_TYPE_TCP_IPV6 | - UPT1_RSS_HASH_TYPE_IPV6; - rssConf->hashFunc = UPT1_RSS_HASH_FUNC_TOEPLITZ; - rssConf->hashKeySize = UPT1_RSS_MAX_KEY_SIZE; - rssConf->indTableSize = VMXNET3_RSS_IND_TABLE_SIZE; - get_random_bytes(&rssConf->hashKey[0], rssConf->hashKeySize); - for (i = 0; i < rssConf->indTableSize; i++) - rssConf->indTable[i] = ethtool_rxfh_indir_default( - i, adapter->num_rx_queues); - - devRead->rssConfDesc.confVer = 1; - devRead->rssConfDesc.confLen = sizeof(*rssConf); - devRead->rssConfDesc.confPA = virt_to_phys(rssConf); - } - -#endif /* VMXNET3_RSS */ - - /* intr settings */ - devRead->intrConf.autoMask = adapter->intr.mask_mode == - VMXNET3_IMM_AUTO; - devRead->intrConf.numIntrs = adapter->intr.num_intrs; - for (i = 0; i < adapter->intr.num_intrs; i++) - devRead->intrConf.modLevels[i] = adapter->intr.mod_levels[i]; - - devRead->intrConf.eventIntrIdx = adapter->intr.event_intr_idx; - devRead->intrConf.intrCtrl |= cpu_to_le32(VMXNET3_IC_DISABLE_ALL); - - /* rx filter settings */ - devRead->rxFilterConf.rxMode = 0; - vmxnet3_restore_vlan(adapter); - vmxnet3_write_mac_addr(adapter, adapter->netdev->dev_addr); - - /* the rest are already zeroed */ -} - - -int -vmxnet3_activate_dev(struct vmxnet3_adapter *adapter) -{ - int err, i; - u32 ret; - unsigned long flags; - - dev_dbg(&adapter->netdev->dev, "%s: skb_buf_size %d, rx_buf_per_pkt %d," - " ring sizes %u %u %u\n", adapter->netdev->name, - adapter->skb_buf_size, adapter->rx_buf_per_pkt, - adapter->tx_queue[0].tx_ring.size, - adapter->rx_queue[0].rx_ring[0].size, - adapter->rx_queue[0].rx_ring[1].size); - - vmxnet3_tq_init_all(adapter); - err = vmxnet3_rq_init_all(adapter); - if (err) { - printk(KERN_ERR "Failed to init rx queue for %s: error %d\n", - adapter->netdev->name, err); - goto rq_err; - } - - err = vmxnet3_request_irqs(adapter); - if (err) { - printk(KERN_ERR "Failed to setup irq for %s: error %d\n", - adapter->netdev->name, err); - goto irq_err; - } - - vmxnet3_setup_driver_shared(adapter); - - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_DSAL, VMXNET3_GET_ADDR_LO( - adapter->shared_pa)); - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_DSAH, VMXNET3_GET_ADDR_HI( - adapter->shared_pa)); - spin_lock_irqsave(&adapter->cmd_lock, flags); - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, - VMXNET3_CMD_ACTIVATE_DEV); - ret = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD); - spin_unlock_irqrestore(&adapter->cmd_lock, flags); - - if (ret != 0) { - printk(KERN_ERR "Failed to activate dev %s: error %u\n", - adapter->netdev->name, ret); - err = -EINVAL; - goto activate_err; - } - - for (i = 0; i < adapter->num_rx_queues; i++) { - VMXNET3_WRITE_BAR0_REG(adapter, - VMXNET3_REG_RXPROD + i * VMXNET3_REG_ALIGN, - adapter->rx_queue[i].rx_ring[0].next2fill); - VMXNET3_WRITE_BAR0_REG(adapter, (VMXNET3_REG_RXPROD2 + - (i * VMXNET3_REG_ALIGN)), - adapter->rx_queue[i].rx_ring[1].next2fill); - } - - /* Apply the rx filter settins last. */ - vmxnet3_set_mc(adapter->netdev); - - /* - * Check link state when first activating device. It will start the - * tx queue if the link is up. - */ - vmxnet3_check_link(adapter, true); - for (i = 0; i < adapter->num_rx_queues; i++) - napi_enable(&adapter->rx_queue[i].napi); - vmxnet3_enable_all_intrs(adapter); - clear_bit(VMXNET3_STATE_BIT_QUIESCED, &adapter->state); - return 0; - -activate_err: - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_DSAL, 0); - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_DSAH, 0); - vmxnet3_free_irqs(adapter); -irq_err: -rq_err: - /* free up buffers we allocated */ - vmxnet3_rq_cleanup_all(adapter); - return err; -} - - -void -vmxnet3_reset_dev(struct vmxnet3_adapter *adapter) -{ - unsigned long flags; - spin_lock_irqsave(&adapter->cmd_lock, flags); - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_RESET_DEV); - spin_unlock_irqrestore(&adapter->cmd_lock, flags); -} - - -int -vmxnet3_quiesce_dev(struct vmxnet3_adapter *adapter) -{ - int i; - unsigned long flags; - if (test_and_set_bit(VMXNET3_STATE_BIT_QUIESCED, &adapter->state)) - return 0; - - - spin_lock_irqsave(&adapter->cmd_lock, flags); - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, - VMXNET3_CMD_QUIESCE_DEV); - spin_unlock_irqrestore(&adapter->cmd_lock, flags); - vmxnet3_disable_all_intrs(adapter); - - for (i = 0; i < adapter->num_rx_queues; i++) - napi_disable(&adapter->rx_queue[i].napi); - netif_tx_disable(adapter->netdev); - adapter->link_speed = 0; - netif_carrier_off(adapter->netdev); - - vmxnet3_tq_cleanup_all(adapter); - vmxnet3_rq_cleanup_all(adapter); - vmxnet3_free_irqs(adapter); - return 0; -} - - -static void -vmxnet3_write_mac_addr(struct vmxnet3_adapter *adapter, u8 *mac) -{ - u32 tmp; - - tmp = *(u32 *)mac; - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_MACL, tmp); - - tmp = (mac[5] << 8) | mac[4]; - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_MACH, tmp); -} - - -static int -vmxnet3_set_mac_addr(struct net_device *netdev, void *p) -{ - struct sockaddr *addr = p; - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - - memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); - vmxnet3_write_mac_addr(adapter, addr->sa_data); - - return 0; -} - - -/* ==================== initialization and cleanup routines ============ */ - -static int -vmxnet3_alloc_pci_resources(struct vmxnet3_adapter *adapter, bool *dma64) -{ - int err; - unsigned long mmio_start, mmio_len; - struct pci_dev *pdev = adapter->pdev; - - err = pci_enable_device(pdev); - if (err) { - printk(KERN_ERR "Failed to enable adapter %s: error %d\n", - pci_name(pdev), err); - return err; - } - - if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) == 0) { - if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) { - printk(KERN_ERR "pci_set_consistent_dma_mask failed " - "for adapter %s\n", pci_name(pdev)); - err = -EIO; - goto err_set_mask; - } - *dma64 = true; - } else { - if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) { - printk(KERN_ERR "pci_set_dma_mask failed for adapter " - "%s\n", pci_name(pdev)); - err = -EIO; - goto err_set_mask; - } - *dma64 = false; - } - - err = pci_request_selected_regions(pdev, (1 << 2) - 1, - vmxnet3_driver_name); - if (err) { - printk(KERN_ERR "Failed to request region for adapter %s: " - "error %d\n", pci_name(pdev), err); - goto err_set_mask; - } - - pci_set_master(pdev); - - mmio_start = pci_resource_start(pdev, 0); - mmio_len = pci_resource_len(pdev, 0); - adapter->hw_addr0 = ioremap(mmio_start, mmio_len); - if (!adapter->hw_addr0) { - printk(KERN_ERR "Failed to map bar0 for adapter %s\n", - pci_name(pdev)); - err = -EIO; - goto err_ioremap; - } - - mmio_start = pci_resource_start(pdev, 1); - mmio_len = pci_resource_len(pdev, 1); - adapter->hw_addr1 = ioremap(mmio_start, mmio_len); - if (!adapter->hw_addr1) { - printk(KERN_ERR "Failed to map bar1 for adapter %s\n", - pci_name(pdev)); - err = -EIO; - goto err_bar1; - } - return 0; - -err_bar1: - iounmap(adapter->hw_addr0); -err_ioremap: - pci_release_selected_regions(pdev, (1 << 2) - 1); -err_set_mask: - pci_disable_device(pdev); - return err; -} - - -static void -vmxnet3_free_pci_resources(struct vmxnet3_adapter *adapter) -{ - BUG_ON(!adapter->pdev); - - iounmap(adapter->hw_addr0); - iounmap(adapter->hw_addr1); - pci_release_selected_regions(adapter->pdev, (1 << 2) - 1); - pci_disable_device(adapter->pdev); -} - - -static void -vmxnet3_adjust_rx_ring_size(struct vmxnet3_adapter *adapter) -{ - size_t sz, i, ring0_size, ring1_size, comp_size; - struct vmxnet3_rx_queue *rq = &adapter->rx_queue[0]; - - - if (adapter->netdev->mtu <= VMXNET3_MAX_SKB_BUF_SIZE - - VMXNET3_MAX_ETH_HDR_SIZE) { - adapter->skb_buf_size = adapter->netdev->mtu + - VMXNET3_MAX_ETH_HDR_SIZE; - if (adapter->skb_buf_size < VMXNET3_MIN_T0_BUF_SIZE) - adapter->skb_buf_size = VMXNET3_MIN_T0_BUF_SIZE; - - adapter->rx_buf_per_pkt = 1; - } else { - adapter->skb_buf_size = VMXNET3_MAX_SKB_BUF_SIZE; - sz = adapter->netdev->mtu - VMXNET3_MAX_SKB_BUF_SIZE + - VMXNET3_MAX_ETH_HDR_SIZE; - adapter->rx_buf_per_pkt = 1 + (sz + PAGE_SIZE - 1) / PAGE_SIZE; - } - - /* - * for simplicity, force the ring0 size to be a multiple of - * rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN - */ - sz = adapter->rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN; - ring0_size = adapter->rx_queue[0].rx_ring[0].size; - ring0_size = (ring0_size + sz - 1) / sz * sz; - ring0_size = min_t(u32, ring0_size, VMXNET3_RX_RING_MAX_SIZE / - sz * sz); - ring1_size = adapter->rx_queue[0].rx_ring[1].size; - comp_size = ring0_size + ring1_size; - - for (i = 0; i < adapter->num_rx_queues; i++) { - rq = &adapter->rx_queue[i]; - rq->rx_ring[0].size = ring0_size; - rq->rx_ring[1].size = ring1_size; - rq->comp_ring.size = comp_size; - } -} - - -int -vmxnet3_create_queues(struct vmxnet3_adapter *adapter, u32 tx_ring_size, - u32 rx_ring_size, u32 rx_ring2_size) -{ - int err = 0, i; - - for (i = 0; i < adapter->num_tx_queues; i++) { - struct vmxnet3_tx_queue *tq = &adapter->tx_queue[i]; - tq->tx_ring.size = tx_ring_size; - tq->data_ring.size = tx_ring_size; - tq->comp_ring.size = tx_ring_size; - tq->shared = &adapter->tqd_start[i].ctrl; - tq->stopped = true; - tq->adapter = adapter; - tq->qid = i; - err = vmxnet3_tq_create(tq, adapter); - /* - * Too late to change num_tx_queues. We cannot do away with - * lesser number of queues than what we asked for - */ - if (err) - goto queue_err; - } - - adapter->rx_queue[0].rx_ring[0].size = rx_ring_size; - adapter->rx_queue[0].rx_ring[1].size = rx_ring2_size; - vmxnet3_adjust_rx_ring_size(adapter); - for (i = 0; i < adapter->num_rx_queues; i++) { - struct vmxnet3_rx_queue *rq = &adapter->rx_queue[i]; - /* qid and qid2 for rx queues will be assigned later when num - * of rx queues is finalized after allocating intrs */ - rq->shared = &adapter->rqd_start[i].ctrl; - rq->adapter = adapter; - err = vmxnet3_rq_create(rq, adapter); - if (err) { - if (i == 0) { - printk(KERN_ERR "Could not allocate any rx" - "queues. Aborting.\n"); - goto queue_err; - } else { - printk(KERN_INFO "Number of rx queues changed " - "to : %d.\n", i); - adapter->num_rx_queues = i; - err = 0; - break; - } - } - } - return err; -queue_err: - vmxnet3_tq_destroy_all(adapter); - return err; -} - -static int -vmxnet3_open(struct net_device *netdev) -{ - struct vmxnet3_adapter *adapter; - int err, i; - - adapter = netdev_priv(netdev); - - for (i = 0; i < adapter->num_tx_queues; i++) - spin_lock_init(&adapter->tx_queue[i].tx_lock); - - err = vmxnet3_create_queues(adapter, VMXNET3_DEF_TX_RING_SIZE, - VMXNET3_DEF_RX_RING_SIZE, - VMXNET3_DEF_RX_RING_SIZE); - if (err) - goto queue_err; - - err = vmxnet3_activate_dev(adapter); - if (err) - goto activate_err; - - return 0; - -activate_err: - vmxnet3_rq_destroy_all(adapter); - vmxnet3_tq_destroy_all(adapter); -queue_err: - return err; -} - - -static int -vmxnet3_close(struct net_device *netdev) -{ - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - - /* - * Reset_work may be in the middle of resetting the device, wait for its - * completion. - */ - while (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state)) - msleep(1); - - vmxnet3_quiesce_dev(adapter); - - vmxnet3_rq_destroy_all(adapter); - vmxnet3_tq_destroy_all(adapter); - - clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state); - - - return 0; -} - - -void -vmxnet3_force_close(struct vmxnet3_adapter *adapter) -{ - int i; - - /* - * we must clear VMXNET3_STATE_BIT_RESETTING, otherwise - * vmxnet3_close() will deadlock. - */ - BUG_ON(test_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state)); - - /* we need to enable NAPI, otherwise dev_close will deadlock */ - for (i = 0; i < adapter->num_rx_queues; i++) - napi_enable(&adapter->rx_queue[i].napi); - dev_close(adapter->netdev); -} - - -static int -vmxnet3_change_mtu(struct net_device *netdev, int new_mtu) -{ - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - int err = 0; - - if (new_mtu < VMXNET3_MIN_MTU || new_mtu > VMXNET3_MAX_MTU) - return -EINVAL; - - netdev->mtu = new_mtu; - - /* - * Reset_work may be in the middle of resetting the device, wait for its - * completion. - */ - while (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state)) - msleep(1); - - if (netif_running(netdev)) { - vmxnet3_quiesce_dev(adapter); - vmxnet3_reset_dev(adapter); - - /* we need to re-create the rx queue based on the new mtu */ - vmxnet3_rq_destroy_all(adapter); - vmxnet3_adjust_rx_ring_size(adapter); - err = vmxnet3_rq_create_all(adapter); - if (err) { - printk(KERN_ERR "%s: failed to re-create rx queues," - " error %d. Closing it.\n", netdev->name, err); - goto out; - } - - err = vmxnet3_activate_dev(adapter); - if (err) { - printk(KERN_ERR "%s: failed to re-activate, error %d. " - "Closing it\n", netdev->name, err); - goto out; - } - } - -out: - clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state); - if (err) - vmxnet3_force_close(adapter); - - return err; -} - - -static void -vmxnet3_declare_features(struct vmxnet3_adapter *adapter, bool dma64) -{ - struct net_device *netdev = adapter->netdev; - - netdev->hw_features = NETIF_F_SG | NETIF_F_RXCSUM | - NETIF_F_HW_CSUM | NETIF_F_HW_VLAN_TX | - NETIF_F_HW_VLAN_RX | NETIF_F_TSO | NETIF_F_TSO6 | - NETIF_F_LRO; - if (dma64) - netdev->hw_features |= NETIF_F_HIGHDMA; - netdev->vlan_features = netdev->hw_features & - ~(NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX); - netdev->features = netdev->hw_features | NETIF_F_HW_VLAN_FILTER; - - netdev_info(adapter->netdev, - "features: sg csum vlan jf tso tsoIPv6 lro%s\n", - dma64 ? " highDMA" : ""); -} - - -static void -vmxnet3_read_mac_addr(struct vmxnet3_adapter *adapter, u8 *mac) -{ - u32 tmp; - - tmp = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_MACL); - *(u32 *)mac = tmp; - - tmp = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_MACH); - mac[4] = tmp & 0xff; - mac[5] = (tmp >> 8) & 0xff; -} - -#ifdef CONFIG_PCI_MSI - -/* - * Enable MSIx vectors. - * Returns : - * 0 on successful enabling of required vectors, - * VMXNET3_LINUX_MIN_MSIX_VECT when only minimum number of vectors required - * could be enabled. - * number of vectors which can be enabled otherwise (this number is smaller - * than VMXNET3_LINUX_MIN_MSIX_VECT) - */ - -static int -vmxnet3_acquire_msix_vectors(struct vmxnet3_adapter *adapter, - int vectors) -{ - int err = 0, vector_threshold; - vector_threshold = VMXNET3_LINUX_MIN_MSIX_VECT; - - while (vectors >= vector_threshold) { - err = pci_enable_msix(adapter->pdev, adapter->intr.msix_entries, - vectors); - if (!err) { - adapter->intr.num_intrs = vectors; - return 0; - } else if (err < 0) { - netdev_err(adapter->netdev, - "Failed to enable MSI-X, error: %d\n", err); - vectors = 0; - } else if (err < vector_threshold) { - break; - } else { - /* If fails to enable required number of MSI-x vectors - * try enabling minimum number of vectors required. - */ - netdev_err(adapter->netdev, - "Failed to enable %d MSI-X, trying %d instead\n", - vectors, vector_threshold); - vectors = vector_threshold; - } - } - - netdev_info(adapter->netdev, - "Number of MSI-X interrupts which can be allocated are lower than min threshold required.\n"); - return err; -} - - -#endif /* CONFIG_PCI_MSI */ - -static void -vmxnet3_alloc_intr_resources(struct vmxnet3_adapter *adapter) -{ - u32 cfg; - unsigned long flags; - - /* intr settings */ - spin_lock_irqsave(&adapter->cmd_lock, flags); - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, - VMXNET3_CMD_GET_CONF_INTR); - cfg = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD); - spin_unlock_irqrestore(&adapter->cmd_lock, flags); - adapter->intr.type = cfg & 0x3; - adapter->intr.mask_mode = (cfg >> 2) & 0x3; - - if (adapter->intr.type == VMXNET3_IT_AUTO) { - adapter->intr.type = VMXNET3_IT_MSIX; - } - -#ifdef CONFIG_PCI_MSI - if (adapter->intr.type == VMXNET3_IT_MSIX) { - int vector, err = 0; - - adapter->intr.num_intrs = (adapter->share_intr == - VMXNET3_INTR_TXSHARE) ? 1 : - adapter->num_tx_queues; - adapter->intr.num_intrs += (adapter->share_intr == - VMXNET3_INTR_BUDDYSHARE) ? 0 : - adapter->num_rx_queues; - adapter->intr.num_intrs += 1; /* for link event */ - - adapter->intr.num_intrs = (adapter->intr.num_intrs > - VMXNET3_LINUX_MIN_MSIX_VECT - ? adapter->intr.num_intrs : - VMXNET3_LINUX_MIN_MSIX_VECT); - - for (vector = 0; vector < adapter->intr.num_intrs; vector++) - adapter->intr.msix_entries[vector].entry = vector; - - err = vmxnet3_acquire_msix_vectors(adapter, - adapter->intr.num_intrs); - /* If we cannot allocate one MSIx vector per queue - * then limit the number of rx queues to 1 - */ - if (err == VMXNET3_LINUX_MIN_MSIX_VECT) { - if (adapter->share_intr != VMXNET3_INTR_BUDDYSHARE - || adapter->num_rx_queues != 1) { - adapter->share_intr = VMXNET3_INTR_TXSHARE; - printk(KERN_ERR "Number of rx queues : 1\n"); - adapter->num_rx_queues = 1; - adapter->intr.num_intrs = - VMXNET3_LINUX_MIN_MSIX_VECT; - } - return; - } - if (!err) - return; - - /* If we cannot allocate MSIx vectors use only one rx queue */ - netdev_info(adapter->netdev, - "Failed to enable MSI-X, error %d . Limiting #rx queues to 1, try MSI.\n", - err); - - adapter->intr.type = VMXNET3_IT_MSI; - } - - if (adapter->intr.type == VMXNET3_IT_MSI) { - int err; - err = pci_enable_msi(adapter->pdev); - if (!err) { - adapter->num_rx_queues = 1; - adapter->intr.num_intrs = 1; - return; - } - } -#endif /* CONFIG_PCI_MSI */ - - adapter->num_rx_queues = 1; - printk(KERN_INFO "Using INTx interrupt, #Rx queues: 1.\n"); - adapter->intr.type = VMXNET3_IT_INTX; - - /* INT-X related setting */ - adapter->intr.num_intrs = 1; -} - - -static void -vmxnet3_free_intr_resources(struct vmxnet3_adapter *adapter) -{ - if (adapter->intr.type == VMXNET3_IT_MSIX) - pci_disable_msix(adapter->pdev); - else if (adapter->intr.type == VMXNET3_IT_MSI) - pci_disable_msi(adapter->pdev); - else - BUG_ON(adapter->intr.type != VMXNET3_IT_INTX); -} - - -static void -vmxnet3_tx_timeout(struct net_device *netdev) -{ - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - adapter->tx_timeout_count++; - - printk(KERN_ERR "%s: tx hang\n", adapter->netdev->name); - schedule_work(&adapter->work); - netif_wake_queue(adapter->netdev); -} - - -static void -vmxnet3_reset_work(struct work_struct *data) -{ - struct vmxnet3_adapter *adapter; - - adapter = container_of(data, struct vmxnet3_adapter, work); - - /* if another thread is resetting the device, no need to proceed */ - if (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state)) - return; - - /* if the device is closed, we must leave it alone */ - rtnl_lock(); - if (netif_running(adapter->netdev)) { - printk(KERN_INFO "%s: resetting\n", adapter->netdev->name); - vmxnet3_quiesce_dev(adapter); - vmxnet3_reset_dev(adapter); - vmxnet3_activate_dev(adapter); - } else { - printk(KERN_INFO "%s: already closed\n", adapter->netdev->name); - } - rtnl_unlock(); - - clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state); -} - - -static int __devinit -vmxnet3_probe_device(struct pci_dev *pdev, - const struct pci_device_id *id) -{ - static const struct net_device_ops vmxnet3_netdev_ops = { - .ndo_open = vmxnet3_open, - .ndo_stop = vmxnet3_close, - .ndo_start_xmit = vmxnet3_xmit_frame, - .ndo_set_mac_address = vmxnet3_set_mac_addr, - .ndo_change_mtu = vmxnet3_change_mtu, - .ndo_set_features = vmxnet3_set_features, - .ndo_get_stats64 = vmxnet3_get_stats64, - .ndo_tx_timeout = vmxnet3_tx_timeout, - .ndo_set_rx_mode = vmxnet3_set_mc, - .ndo_vlan_rx_add_vid = vmxnet3_vlan_rx_add_vid, - .ndo_vlan_rx_kill_vid = vmxnet3_vlan_rx_kill_vid, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = vmxnet3_netpoll, -#endif - }; - int err; - bool dma64 = false; /* stupid gcc */ - u32 ver; - struct net_device *netdev; - struct vmxnet3_adapter *adapter; - u8 mac[ETH_ALEN]; - int size; - int num_tx_queues; - int num_rx_queues; - - if (!pci_msi_enabled()) - enable_mq = 0; - -#ifdef VMXNET3_RSS - if (enable_mq) - num_rx_queues = min(VMXNET3_DEVICE_MAX_RX_QUEUES, - (int)num_online_cpus()); - else -#endif - num_rx_queues = 1; - num_rx_queues = rounddown_pow_of_two(num_rx_queues); - - if (enable_mq) - num_tx_queues = min(VMXNET3_DEVICE_MAX_TX_QUEUES, - (int)num_online_cpus()); - else - num_tx_queues = 1; - - num_tx_queues = rounddown_pow_of_two(num_tx_queues); - netdev = alloc_etherdev_mq(sizeof(struct vmxnet3_adapter), - max(num_tx_queues, num_rx_queues)); - printk(KERN_INFO "# of Tx queues : %d, # of Rx queues : %d\n", - num_tx_queues, num_rx_queues); - - if (!netdev) - return -ENOMEM; - - pci_set_drvdata(pdev, netdev); - adapter = netdev_priv(netdev); - adapter->netdev = netdev; - adapter->pdev = pdev; - - spin_lock_init(&adapter->cmd_lock); - adapter->shared = pci_alloc_consistent(adapter->pdev, - sizeof(struct Vmxnet3_DriverShared), - &adapter->shared_pa); - if (!adapter->shared) { - printk(KERN_ERR "Failed to allocate memory for %s\n", - pci_name(pdev)); - err = -ENOMEM; - goto err_alloc_shared; - } - - adapter->num_rx_queues = num_rx_queues; - adapter->num_tx_queues = num_tx_queues; - - size = sizeof(struct Vmxnet3_TxQueueDesc) * adapter->num_tx_queues; - size += sizeof(struct Vmxnet3_RxQueueDesc) * adapter->num_rx_queues; - adapter->tqd_start = pci_alloc_consistent(adapter->pdev, size, - &adapter->queue_desc_pa); - - if (!adapter->tqd_start) { - printk(KERN_ERR "Failed to allocate memory for %s\n", - pci_name(pdev)); - err = -ENOMEM; - goto err_alloc_queue_desc; - } - adapter->rqd_start = (struct Vmxnet3_RxQueueDesc *)(adapter->tqd_start + - adapter->num_tx_queues); - - adapter->pm_conf = kmalloc(sizeof(struct Vmxnet3_PMConf), GFP_KERNEL); - if (adapter->pm_conf == NULL) { - err = -ENOMEM; - goto err_alloc_pm; - } - -#ifdef VMXNET3_RSS - - adapter->rss_conf = kmalloc(sizeof(struct UPT1_RSSConf), GFP_KERNEL); - if (adapter->rss_conf == NULL) { - err = -ENOMEM; - goto err_alloc_rss; - } -#endif /* VMXNET3_RSS */ - - err = vmxnet3_alloc_pci_resources(adapter, &dma64); - if (err < 0) - goto err_alloc_pci; - - ver = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_VRRS); - if (ver & 1) { - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_VRRS, 1); - } else { - printk(KERN_ERR "Incompatible h/w version (0x%x) for adapter" - " %s\n", ver, pci_name(pdev)); - err = -EBUSY; - goto err_ver; - } - - ver = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_UVRS); - if (ver & 1) { - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_UVRS, 1); - } else { - printk(KERN_ERR "Incompatible upt version (0x%x) for " - "adapter %s\n", ver, pci_name(pdev)); - err = -EBUSY; - goto err_ver; - } - - SET_NETDEV_DEV(netdev, &pdev->dev); - vmxnet3_declare_features(adapter, dma64); - - adapter->dev_number = atomic_read(&devices_found); - - adapter->share_intr = irq_share_mode; - if (adapter->share_intr == VMXNET3_INTR_BUDDYSHARE && - adapter->num_tx_queues != adapter->num_rx_queues) - adapter->share_intr = VMXNET3_INTR_DONTSHARE; - - vmxnet3_alloc_intr_resources(adapter); - -#ifdef VMXNET3_RSS - if (adapter->num_rx_queues > 1 && - adapter->intr.type == VMXNET3_IT_MSIX) { - adapter->rss = true; - printk(KERN_INFO "RSS is enabled.\n"); - } else { - adapter->rss = false; - } -#endif - - vmxnet3_read_mac_addr(adapter, mac); - memcpy(netdev->dev_addr, mac, netdev->addr_len); - - netdev->netdev_ops = &vmxnet3_netdev_ops; - vmxnet3_set_ethtool_ops(netdev); - netdev->watchdog_timeo = 5 * HZ; - - INIT_WORK(&adapter->work, vmxnet3_reset_work); - - if (adapter->intr.type == VMXNET3_IT_MSIX) { - int i; - for (i = 0; i < adapter->num_rx_queues; i++) { - netif_napi_add(adapter->netdev, - &adapter->rx_queue[i].napi, - vmxnet3_poll_rx_only, 64); - } - } else { - netif_napi_add(adapter->netdev, &adapter->rx_queue[0].napi, - vmxnet3_poll, 64); - } - - netif_set_real_num_tx_queues(adapter->netdev, adapter->num_tx_queues); - netif_set_real_num_rx_queues(adapter->netdev, adapter->num_rx_queues); - - err = register_netdev(netdev); - - if (err) { - printk(KERN_ERR "Failed to register adapter %s\n", - pci_name(pdev)); - goto err_register; - } - - set_bit(VMXNET3_STATE_BIT_QUIESCED, &adapter->state); - vmxnet3_check_link(adapter, false); - atomic_inc(&devices_found); - return 0; - -err_register: - vmxnet3_free_intr_resources(adapter); -err_ver: - vmxnet3_free_pci_resources(adapter); -err_alloc_pci: -#ifdef VMXNET3_RSS - kfree(adapter->rss_conf); -err_alloc_rss: -#endif - kfree(adapter->pm_conf); -err_alloc_pm: - pci_free_consistent(adapter->pdev, size, adapter->tqd_start, - adapter->queue_desc_pa); -err_alloc_queue_desc: - pci_free_consistent(adapter->pdev, sizeof(struct Vmxnet3_DriverShared), - adapter->shared, adapter->shared_pa); -err_alloc_shared: - pci_set_drvdata(pdev, NULL); - free_netdev(netdev); - return err; -} - - -static void __devexit -vmxnet3_remove_device(struct pci_dev *pdev) -{ - struct net_device *netdev = pci_get_drvdata(pdev); - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - int size = 0; - int num_rx_queues; - -#ifdef VMXNET3_RSS - if (enable_mq) - num_rx_queues = min(VMXNET3_DEVICE_MAX_RX_QUEUES, - (int)num_online_cpus()); - else -#endif - num_rx_queues = 1; - num_rx_queues = rounddown_pow_of_two(num_rx_queues); - - cancel_work_sync(&adapter->work); - - unregister_netdev(netdev); - - vmxnet3_free_intr_resources(adapter); - vmxnet3_free_pci_resources(adapter); -#ifdef VMXNET3_RSS - kfree(adapter->rss_conf); -#endif - kfree(adapter->pm_conf); - - size = sizeof(struct Vmxnet3_TxQueueDesc) * adapter->num_tx_queues; - size += sizeof(struct Vmxnet3_RxQueueDesc) * num_rx_queues; - pci_free_consistent(adapter->pdev, size, adapter->tqd_start, - adapter->queue_desc_pa); - pci_free_consistent(adapter->pdev, sizeof(struct Vmxnet3_DriverShared), - adapter->shared, adapter->shared_pa); - free_netdev(netdev); -} - - -#ifdef CONFIG_PM - -static int -vmxnet3_suspend(struct device *device) -{ - struct pci_dev *pdev = to_pci_dev(device); - struct net_device *netdev = pci_get_drvdata(pdev); - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - struct Vmxnet3_PMConf *pmConf; - struct ethhdr *ehdr; - struct arphdr *ahdr; - u8 *arpreq; - struct in_device *in_dev; - struct in_ifaddr *ifa; - unsigned long flags; - int i = 0; - - if (!netif_running(netdev)) - return 0; - - for (i = 0; i < adapter->num_rx_queues; i++) - napi_disable(&adapter->rx_queue[i].napi); - - vmxnet3_disable_all_intrs(adapter); - vmxnet3_free_irqs(adapter); - vmxnet3_free_intr_resources(adapter); - - netif_device_detach(netdev); - netif_tx_stop_all_queues(netdev); - - /* Create wake-up filters. */ - pmConf = adapter->pm_conf; - memset(pmConf, 0, sizeof(*pmConf)); - - if (adapter->wol & WAKE_UCAST) { - pmConf->filters[i].patternSize = ETH_ALEN; - pmConf->filters[i].maskSize = 1; - memcpy(pmConf->filters[i].pattern, netdev->dev_addr, ETH_ALEN); - pmConf->filters[i].mask[0] = 0x3F; /* LSB ETH_ALEN bits */ - - pmConf->wakeUpEvents |= VMXNET3_PM_WAKEUP_FILTER; - i++; - } - - if (adapter->wol & WAKE_ARP) { - in_dev = in_dev_get(netdev); - if (!in_dev) - goto skip_arp; - - ifa = (struct in_ifaddr *)in_dev->ifa_list; - if (!ifa) - goto skip_arp; - - pmConf->filters[i].patternSize = ETH_HLEN + /* Ethernet header*/ - sizeof(struct arphdr) + /* ARP header */ - 2 * ETH_ALEN + /* 2 Ethernet addresses*/ - 2 * sizeof(u32); /*2 IPv4 addresses */ - pmConf->filters[i].maskSize = - (pmConf->filters[i].patternSize - 1) / 8 + 1; - - /* ETH_P_ARP in Ethernet header. */ - ehdr = (struct ethhdr *)pmConf->filters[i].pattern; - ehdr->h_proto = htons(ETH_P_ARP); - - /* ARPOP_REQUEST in ARP header. */ - ahdr = (struct arphdr *)&pmConf->filters[i].pattern[ETH_HLEN]; - ahdr->ar_op = htons(ARPOP_REQUEST); - arpreq = (u8 *)(ahdr + 1); - - /* The Unicast IPv4 address in 'tip' field. */ - arpreq += 2 * ETH_ALEN + sizeof(u32); - *(u32 *)arpreq = ifa->ifa_address; - - /* The mask for the relevant bits. */ - pmConf->filters[i].mask[0] = 0x00; - pmConf->filters[i].mask[1] = 0x30; /* ETH_P_ARP */ - pmConf->filters[i].mask[2] = 0x30; /* ARPOP_REQUEST */ - pmConf->filters[i].mask[3] = 0x00; - pmConf->filters[i].mask[4] = 0xC0; /* IPv4 TIP */ - pmConf->filters[i].mask[5] = 0x03; /* IPv4 TIP */ - in_dev_put(in_dev); - - pmConf->wakeUpEvents |= VMXNET3_PM_WAKEUP_FILTER; - i++; - } - -skip_arp: - if (adapter->wol & WAKE_MAGIC) - pmConf->wakeUpEvents |= VMXNET3_PM_WAKEUP_MAGIC; - - pmConf->numFilters = i; - - adapter->shared->devRead.pmConfDesc.confVer = cpu_to_le32(1); - adapter->shared->devRead.pmConfDesc.confLen = cpu_to_le32(sizeof( - *pmConf)); - adapter->shared->devRead.pmConfDesc.confPA = cpu_to_le64(virt_to_phys( - pmConf)); - - spin_lock_irqsave(&adapter->cmd_lock, flags); - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, - VMXNET3_CMD_UPDATE_PMCFG); - spin_unlock_irqrestore(&adapter->cmd_lock, flags); - - pci_save_state(pdev); - pci_enable_wake(pdev, pci_choose_state(pdev, PMSG_SUSPEND), - adapter->wol); - pci_disable_device(pdev); - pci_set_power_state(pdev, pci_choose_state(pdev, PMSG_SUSPEND)); - - return 0; -} - - -static int -vmxnet3_resume(struct device *device) -{ - int err, i = 0; - unsigned long flags; - struct pci_dev *pdev = to_pci_dev(device); - struct net_device *netdev = pci_get_drvdata(pdev); - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - struct Vmxnet3_PMConf *pmConf; - - if (!netif_running(netdev)) - return 0; - - /* Destroy wake-up filters. */ - pmConf = adapter->pm_conf; - memset(pmConf, 0, sizeof(*pmConf)); - - adapter->shared->devRead.pmConfDesc.confVer = cpu_to_le32(1); - adapter->shared->devRead.pmConfDesc.confLen = cpu_to_le32(sizeof( - *pmConf)); - adapter->shared->devRead.pmConfDesc.confPA = cpu_to_le64(virt_to_phys( - pmConf)); - - netif_device_attach(netdev); - pci_set_power_state(pdev, PCI_D0); - pci_restore_state(pdev); - err = pci_enable_device_mem(pdev); - if (err != 0) - return err; - - pci_enable_wake(pdev, PCI_D0, 0); - - spin_lock_irqsave(&adapter->cmd_lock, flags); - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, - VMXNET3_CMD_UPDATE_PMCFG); - spin_unlock_irqrestore(&adapter->cmd_lock, flags); - vmxnet3_alloc_intr_resources(adapter); - vmxnet3_request_irqs(adapter); - for (i = 0; i < adapter->num_rx_queues; i++) - napi_enable(&adapter->rx_queue[i].napi); - vmxnet3_enable_all_intrs(adapter); - - return 0; -} - -static const struct dev_pm_ops vmxnet3_pm_ops = { - .suspend = vmxnet3_suspend, - .resume = vmxnet3_resume, -}; -#endif - -static struct pci_driver vmxnet3_driver = { - .name = vmxnet3_driver_name, - .id_table = vmxnet3_pciid_table, - .probe = vmxnet3_probe_device, - .remove = __devexit_p(vmxnet3_remove_device), -#ifdef CONFIG_PM - .driver.pm = &vmxnet3_pm_ops, -#endif -}; - - -static int __init -vmxnet3_init_module(void) -{ - printk(KERN_INFO "%s - version %s\n", VMXNET3_DRIVER_DESC, - VMXNET3_DRIVER_VERSION_REPORT); - return pci_register_driver(&vmxnet3_driver); -} - -module_init(vmxnet3_init_module); - - -static void -vmxnet3_exit_module(void) -{ - pci_unregister_driver(&vmxnet3_driver); -} - -module_exit(vmxnet3_exit_module); - -MODULE_AUTHOR("VMware, Inc."); -MODULE_DESCRIPTION(VMXNET3_DRIVER_DESC); -MODULE_LICENSE("GPL v2"); -MODULE_VERSION(VMXNET3_DRIVER_VERSION_STRING); diff --git a/ANDROID_3.4.5/drivers/net/vmxnet3/vmxnet3_ethtool.c b/ANDROID_3.4.5/drivers/net/vmxnet3/vmxnet3_ethtool.c deleted file mode 100644 index 587a218b..00000000 --- a/ANDROID_3.4.5/drivers/net/vmxnet3/vmxnet3_ethtool.c +++ /dev/null @@ -1,635 +0,0 @@ -/* - * Linux driver for VMware's vmxnet3 ethernet NIC. - * - * Copyright (C) 2008-2009, VMware, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; version 2 of the License and no later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * The full GNU General Public License is included in this distribution in - * the file called "COPYING". - * - * Maintained by: Shreyas Bhatewara <pv-drivers@vmware.com> - * - */ - - -#include "vmxnet3_int.h" - -struct vmxnet3_stat_desc { - char desc[ETH_GSTRING_LEN]; - int offset; -}; - - -/* per tq stats maintained by the device */ -static const struct vmxnet3_stat_desc -vmxnet3_tq_dev_stats[] = { - /* description, offset */ - { "Tx Queue#", 0 }, - { " TSO pkts tx", offsetof(struct UPT1_TxStats, TSOPktsTxOK) }, - { " TSO bytes tx", offsetof(struct UPT1_TxStats, TSOBytesTxOK) }, - { " ucast pkts tx", offsetof(struct UPT1_TxStats, ucastPktsTxOK) }, - { " ucast bytes tx", offsetof(struct UPT1_TxStats, ucastBytesTxOK) }, - { " mcast pkts tx", offsetof(struct UPT1_TxStats, mcastPktsTxOK) }, - { " mcast bytes tx", offsetof(struct UPT1_TxStats, mcastBytesTxOK) }, - { " bcast pkts tx", offsetof(struct UPT1_TxStats, bcastPktsTxOK) }, - { " bcast bytes tx", offsetof(struct UPT1_TxStats, bcastBytesTxOK) }, - { " pkts tx err", offsetof(struct UPT1_TxStats, pktsTxError) }, - { " pkts tx discard", offsetof(struct UPT1_TxStats, pktsTxDiscard) }, -}; - -/* per tq stats maintained by the driver */ -static const struct vmxnet3_stat_desc -vmxnet3_tq_driver_stats[] = { - /* description, offset */ - {" drv dropped tx total", offsetof(struct vmxnet3_tq_driver_stats, - drop_total) }, - { " too many frags", offsetof(struct vmxnet3_tq_driver_stats, - drop_too_many_frags) }, - { " giant hdr", offsetof(struct vmxnet3_tq_driver_stats, - drop_oversized_hdr) }, - { " hdr err", offsetof(struct vmxnet3_tq_driver_stats, - drop_hdr_inspect_err) }, - { " tso", offsetof(struct vmxnet3_tq_driver_stats, - drop_tso) }, - { " ring full", offsetof(struct vmxnet3_tq_driver_stats, - tx_ring_full) }, - { " pkts linearized", offsetof(struct vmxnet3_tq_driver_stats, - linearized) }, - { " hdr cloned", offsetof(struct vmxnet3_tq_driver_stats, - copy_skb_header) }, - { " giant hdr", offsetof(struct vmxnet3_tq_driver_stats, - oversized_hdr) }, -}; - -/* per rq stats maintained by the device */ -static const struct vmxnet3_stat_desc -vmxnet3_rq_dev_stats[] = { - { "Rx Queue#", 0 }, - { " LRO pkts rx", offsetof(struct UPT1_RxStats, LROPktsRxOK) }, - { " LRO byte rx", offsetof(struct UPT1_RxStats, LROBytesRxOK) }, - { " ucast pkts rx", offsetof(struct UPT1_RxStats, ucastPktsRxOK) }, - { " ucast bytes rx", offsetof(struct UPT1_RxStats, ucastBytesRxOK) }, - { " mcast pkts rx", offsetof(struct UPT1_RxStats, mcastPktsRxOK) }, - { " mcast bytes rx", offsetof(struct UPT1_RxStats, mcastBytesRxOK) }, - { " bcast pkts rx", offsetof(struct UPT1_RxStats, bcastPktsRxOK) }, - { " bcast bytes rx", offsetof(struct UPT1_RxStats, bcastBytesRxOK) }, - { " pkts rx OOB", offsetof(struct UPT1_RxStats, pktsRxOutOfBuf) }, - { " pkts rx err", offsetof(struct UPT1_RxStats, pktsRxError) }, -}; - -/* per rq stats maintained by the driver */ -static const struct vmxnet3_stat_desc -vmxnet3_rq_driver_stats[] = { - /* description, offset */ - { " drv dropped rx total", offsetof(struct vmxnet3_rq_driver_stats, - drop_total) }, - { " err", offsetof(struct vmxnet3_rq_driver_stats, - drop_err) }, - { " fcs", offsetof(struct vmxnet3_rq_driver_stats, - drop_fcs) }, - { " rx buf alloc fail", offsetof(struct vmxnet3_rq_driver_stats, - rx_buf_alloc_failure) }, -}; - -/* gloabl stats maintained by the driver */ -static const struct vmxnet3_stat_desc -vmxnet3_global_stats[] = { - /* description, offset */ - { "tx timeout count", offsetof(struct vmxnet3_adapter, - tx_timeout_count) } -}; - - -struct rtnl_link_stats64 * -vmxnet3_get_stats64(struct net_device *netdev, - struct rtnl_link_stats64 *stats) -{ - struct vmxnet3_adapter *adapter; - struct vmxnet3_tq_driver_stats *drvTxStats; - struct vmxnet3_rq_driver_stats *drvRxStats; - struct UPT1_TxStats *devTxStats; - struct UPT1_RxStats *devRxStats; - unsigned long flags; - int i; - - adapter = netdev_priv(netdev); - - /* Collect the dev stats into the shared area */ - spin_lock_irqsave(&adapter->cmd_lock, flags); - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS); - spin_unlock_irqrestore(&adapter->cmd_lock, flags); - - for (i = 0; i < adapter->num_tx_queues; i++) { - devTxStats = &adapter->tqd_start[i].stats; - drvTxStats = &adapter->tx_queue[i].stats; - stats->tx_packets += devTxStats->ucastPktsTxOK + - devTxStats->mcastPktsTxOK + - devTxStats->bcastPktsTxOK; - stats->tx_bytes += devTxStats->ucastBytesTxOK + - devTxStats->mcastBytesTxOK + - devTxStats->bcastBytesTxOK; - stats->tx_errors += devTxStats->pktsTxError; - stats->tx_dropped += drvTxStats->drop_total; - } - - for (i = 0; i < adapter->num_rx_queues; i++) { - devRxStats = &adapter->rqd_start[i].stats; - drvRxStats = &adapter->rx_queue[i].stats; - stats->rx_packets += devRxStats->ucastPktsRxOK + - devRxStats->mcastPktsRxOK + - devRxStats->bcastPktsRxOK; - - stats->rx_bytes += devRxStats->ucastBytesRxOK + - devRxStats->mcastBytesRxOK + - devRxStats->bcastBytesRxOK; - - stats->rx_errors += devRxStats->pktsRxError; - stats->rx_dropped += drvRxStats->drop_total; - stats->multicast += devRxStats->mcastPktsRxOK; - } - - return stats; -} - -static int -vmxnet3_get_sset_count(struct net_device *netdev, int sset) -{ - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - switch (sset) { - case ETH_SS_STATS: - return (ARRAY_SIZE(vmxnet3_tq_dev_stats) + - ARRAY_SIZE(vmxnet3_tq_driver_stats)) * - adapter->num_tx_queues + - (ARRAY_SIZE(vmxnet3_rq_dev_stats) + - ARRAY_SIZE(vmxnet3_rq_driver_stats)) * - adapter->num_rx_queues + - ARRAY_SIZE(vmxnet3_global_stats); - default: - return -EOPNOTSUPP; - } -} - - -/* Should be multiple of 4 */ -#define NUM_TX_REGS 8 -#define NUM_RX_REGS 12 - -static int -vmxnet3_get_regs_len(struct net_device *netdev) -{ - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - return (adapter->num_tx_queues * NUM_TX_REGS * sizeof(u32) + - adapter->num_rx_queues * NUM_RX_REGS * sizeof(u32)); -} - - -static void -vmxnet3_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo) -{ - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - - strlcpy(drvinfo->driver, vmxnet3_driver_name, sizeof(drvinfo->driver)); - - strlcpy(drvinfo->version, VMXNET3_DRIVER_VERSION_REPORT, - sizeof(drvinfo->version)); - - strlcpy(drvinfo->bus_info, pci_name(adapter->pdev), - ETHTOOL_BUSINFO_LEN); - drvinfo->n_stats = vmxnet3_get_sset_count(netdev, ETH_SS_STATS); - drvinfo->testinfo_len = 0; - drvinfo->eedump_len = 0; - drvinfo->regdump_len = vmxnet3_get_regs_len(netdev); -} - - -static void -vmxnet3_get_strings(struct net_device *netdev, u32 stringset, u8 *buf) -{ - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - if (stringset == ETH_SS_STATS) { - int i, j; - for (j = 0; j < adapter->num_tx_queues; j++) { - for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++) { - memcpy(buf, vmxnet3_tq_dev_stats[i].desc, - ETH_GSTRING_LEN); - buf += ETH_GSTRING_LEN; - } - for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); - i++) { - memcpy(buf, vmxnet3_tq_driver_stats[i].desc, - ETH_GSTRING_LEN); - buf += ETH_GSTRING_LEN; - } - } - - for (j = 0; j < adapter->num_rx_queues; j++) { - for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++) { - memcpy(buf, vmxnet3_rq_dev_stats[i].desc, - ETH_GSTRING_LEN); - buf += ETH_GSTRING_LEN; - } - for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); - i++) { - memcpy(buf, vmxnet3_rq_driver_stats[i].desc, - ETH_GSTRING_LEN); - buf += ETH_GSTRING_LEN; - } - } - - for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++) { - memcpy(buf, vmxnet3_global_stats[i].desc, - ETH_GSTRING_LEN); - buf += ETH_GSTRING_LEN; - } - } -} - -int vmxnet3_set_features(struct net_device *netdev, netdev_features_t features) -{ - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - unsigned long flags; - netdev_features_t changed = features ^ netdev->features; - - if (changed & (NETIF_F_RXCSUM | NETIF_F_LRO | NETIF_F_HW_VLAN_RX)) { - if (features & NETIF_F_RXCSUM) - adapter->shared->devRead.misc.uptFeatures |= - UPT1_F_RXCSUM; - else - adapter->shared->devRead.misc.uptFeatures &= - ~UPT1_F_RXCSUM; - - /* update harware LRO capability accordingly */ - if (features & NETIF_F_LRO) - adapter->shared->devRead.misc.uptFeatures |= - UPT1_F_LRO; - else - adapter->shared->devRead.misc.uptFeatures &= - ~UPT1_F_LRO; - - if (features & NETIF_F_HW_VLAN_RX) - adapter->shared->devRead.misc.uptFeatures |= - UPT1_F_RXVLAN; - else - adapter->shared->devRead.misc.uptFeatures &= - ~UPT1_F_RXVLAN; - - spin_lock_irqsave(&adapter->cmd_lock, flags); - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, - VMXNET3_CMD_UPDATE_FEATURE); - spin_unlock_irqrestore(&adapter->cmd_lock, flags); - } - return 0; -} - -static void -vmxnet3_get_ethtool_stats(struct net_device *netdev, - struct ethtool_stats *stats, u64 *buf) -{ - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - unsigned long flags; - u8 *base; - int i; - int j = 0; - - spin_lock_irqsave(&adapter->cmd_lock, flags); - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS); - spin_unlock_irqrestore(&adapter->cmd_lock, flags); - - /* this does assume each counter is 64-bit wide */ - for (j = 0; j < adapter->num_tx_queues; j++) { - base = (u8 *)&adapter->tqd_start[j].stats; - *buf++ = (u64)j; - for (i = 1; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++) - *buf++ = *(u64 *)(base + - vmxnet3_tq_dev_stats[i].offset); - - base = (u8 *)&adapter->tx_queue[j].stats; - for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); i++) - *buf++ = *(u64 *)(base + - vmxnet3_tq_driver_stats[i].offset); - } - - for (j = 0; j < adapter->num_tx_queues; j++) { - base = (u8 *)&adapter->rqd_start[j].stats; - *buf++ = (u64) j; - for (i = 1; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++) - *buf++ = *(u64 *)(base + - vmxnet3_rq_dev_stats[i].offset); - - base = (u8 *)&adapter->rx_queue[j].stats; - for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); i++) - *buf++ = *(u64 *)(base + - vmxnet3_rq_driver_stats[i].offset); - } - - base = (u8 *)adapter; - for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++) - *buf++ = *(u64 *)(base + vmxnet3_global_stats[i].offset); -} - - -static void -vmxnet3_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p) -{ - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - u32 *buf = p; - int i = 0, j = 0; - - memset(p, 0, vmxnet3_get_regs_len(netdev)); - - regs->version = 1; - - /* Update vmxnet3_get_regs_len if we want to dump more registers */ - - /* make each ring use multiple of 16 bytes */ - for (i = 0; i < adapter->num_tx_queues; i++) { - buf[j++] = adapter->tx_queue[i].tx_ring.next2fill; - buf[j++] = adapter->tx_queue[i].tx_ring.next2comp; - buf[j++] = adapter->tx_queue[i].tx_ring.gen; - buf[j++] = 0; - - buf[j++] = adapter->tx_queue[i].comp_ring.next2proc; - buf[j++] = adapter->tx_queue[i].comp_ring.gen; - buf[j++] = adapter->tx_queue[i].stopped; - buf[j++] = 0; - } - - for (i = 0; i < adapter->num_rx_queues; i++) { - buf[j++] = adapter->rx_queue[i].rx_ring[0].next2fill; - buf[j++] = adapter->rx_queue[i].rx_ring[0].next2comp; - buf[j++] = adapter->rx_queue[i].rx_ring[0].gen; - buf[j++] = 0; - - buf[j++] = adapter->rx_queue[i].rx_ring[1].next2fill; - buf[j++] = adapter->rx_queue[i].rx_ring[1].next2comp; - buf[j++] = adapter->rx_queue[i].rx_ring[1].gen; - buf[j++] = 0; - - buf[j++] = adapter->rx_queue[i].comp_ring.next2proc; - buf[j++] = adapter->rx_queue[i].comp_ring.gen; - buf[j++] = 0; - buf[j++] = 0; - } - -} - - -static void -vmxnet3_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) -{ - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - - wol->supported = WAKE_UCAST | WAKE_ARP | WAKE_MAGIC; - wol->wolopts = adapter->wol; -} - - -static int -vmxnet3_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) -{ - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - - if (wol->wolopts & (WAKE_PHY | WAKE_MCAST | WAKE_BCAST | - WAKE_MAGICSECURE)) { - return -EOPNOTSUPP; - } - - adapter->wol = wol->wolopts; - - device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); - - return 0; -} - - -static int -vmxnet3_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd) -{ - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - - ecmd->supported = SUPPORTED_10000baseT_Full | SUPPORTED_1000baseT_Full | - SUPPORTED_TP; - ecmd->advertising = ADVERTISED_TP; - ecmd->port = PORT_TP; - ecmd->transceiver = XCVR_INTERNAL; - - if (adapter->link_speed) { - ethtool_cmd_speed_set(ecmd, adapter->link_speed); - ecmd->duplex = DUPLEX_FULL; - } else { - ethtool_cmd_speed_set(ecmd, -1); - ecmd->duplex = -1; - } - return 0; -} - - -static void -vmxnet3_get_ringparam(struct net_device *netdev, - struct ethtool_ringparam *param) -{ - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - - param->rx_max_pending = VMXNET3_RX_RING_MAX_SIZE; - param->tx_max_pending = VMXNET3_TX_RING_MAX_SIZE; - param->rx_mini_max_pending = 0; - param->rx_jumbo_max_pending = 0; - - param->rx_pending = adapter->rx_queue[0].rx_ring[0].size * - adapter->num_rx_queues; - param->tx_pending = adapter->tx_queue[0].tx_ring.size * - adapter->num_tx_queues; - param->rx_mini_pending = 0; - param->rx_jumbo_pending = 0; -} - - -static int -vmxnet3_set_ringparam(struct net_device *netdev, - struct ethtool_ringparam *param) -{ - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - u32 new_tx_ring_size, new_rx_ring_size; - u32 sz; - int err = 0; - - if (param->tx_pending == 0 || param->tx_pending > - VMXNET3_TX_RING_MAX_SIZE) - return -EINVAL; - - if (param->rx_pending == 0 || param->rx_pending > - VMXNET3_RX_RING_MAX_SIZE) - return -EINVAL; - - - /* round it up to a multiple of VMXNET3_RING_SIZE_ALIGN */ - new_tx_ring_size = (param->tx_pending + VMXNET3_RING_SIZE_MASK) & - ~VMXNET3_RING_SIZE_MASK; - new_tx_ring_size = min_t(u32, new_tx_ring_size, - VMXNET3_TX_RING_MAX_SIZE); - if (new_tx_ring_size > VMXNET3_TX_RING_MAX_SIZE || (new_tx_ring_size % - VMXNET3_RING_SIZE_ALIGN) != 0) - return -EINVAL; - - /* ring0 has to be a multiple of - * rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN - */ - sz = adapter->rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN; - new_rx_ring_size = (param->rx_pending + sz - 1) / sz * sz; - new_rx_ring_size = min_t(u32, new_rx_ring_size, - VMXNET3_RX_RING_MAX_SIZE / sz * sz); - if (new_rx_ring_size > VMXNET3_RX_RING_MAX_SIZE || (new_rx_ring_size % - sz) != 0) - return -EINVAL; - - if (new_tx_ring_size == adapter->tx_queue[0].tx_ring.size && - new_rx_ring_size == adapter->rx_queue[0].rx_ring[0].size) { - return 0; - } - - /* - * Reset_work may be in the middle of resetting the device, wait for its - * completion. - */ - while (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state)) - msleep(1); - - if (netif_running(netdev)) { - vmxnet3_quiesce_dev(adapter); - vmxnet3_reset_dev(adapter); - - /* recreate the rx queue and the tx queue based on the - * new sizes */ - vmxnet3_tq_destroy_all(adapter); - vmxnet3_rq_destroy_all(adapter); - - err = vmxnet3_create_queues(adapter, new_tx_ring_size, - new_rx_ring_size, VMXNET3_DEF_RX_RING_SIZE); - - if (err) { - /* failed, most likely because of OOM, try default - * size */ - printk(KERN_ERR "%s: failed to apply new sizes, try the" - " default ones\n", netdev->name); - err = vmxnet3_create_queues(adapter, - VMXNET3_DEF_TX_RING_SIZE, - VMXNET3_DEF_RX_RING_SIZE, - VMXNET3_DEF_RX_RING_SIZE); - if (err) { - printk(KERN_ERR "%s: failed to create queues " - "with default sizes. Closing it\n", - netdev->name); - goto out; - } - } - - err = vmxnet3_activate_dev(adapter); - if (err) - printk(KERN_ERR "%s: failed to re-activate, error %d." - " Closing it\n", netdev->name, err); - } - -out: - clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state); - if (err) - vmxnet3_force_close(adapter); - - return err; -} - - -static int -vmxnet3_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info, - u32 *rules) -{ - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - switch (info->cmd) { - case ETHTOOL_GRXRINGS: - info->data = adapter->num_rx_queues; - return 0; - } - return -EOPNOTSUPP; -} - -#ifdef VMXNET3_RSS -static u32 -vmxnet3_get_rss_indir_size(struct net_device *netdev) -{ - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - struct UPT1_RSSConf *rssConf = adapter->rss_conf; - - return rssConf->indTableSize; -} - -static int -vmxnet3_get_rss_indir(struct net_device *netdev, u32 *p) -{ - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - struct UPT1_RSSConf *rssConf = adapter->rss_conf; - unsigned int n = rssConf->indTableSize; - - while (n--) - p[n] = rssConf->indTable[n]; - return 0; - -} - -static int -vmxnet3_set_rss_indir(struct net_device *netdev, const u32 *p) -{ - unsigned int i; - unsigned long flags; - struct vmxnet3_adapter *adapter = netdev_priv(netdev); - struct UPT1_RSSConf *rssConf = adapter->rss_conf; - - for (i = 0; i < rssConf->indTableSize; i++) - rssConf->indTable[i] = p[i]; - - spin_lock_irqsave(&adapter->cmd_lock, flags); - VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, - VMXNET3_CMD_UPDATE_RSSIDT); - spin_unlock_irqrestore(&adapter->cmd_lock, flags); - - return 0; - -} -#endif - -static const struct ethtool_ops vmxnet3_ethtool_ops = { - .get_settings = vmxnet3_get_settings, - .get_drvinfo = vmxnet3_get_drvinfo, - .get_regs_len = vmxnet3_get_regs_len, - .get_regs = vmxnet3_get_regs, - .get_wol = vmxnet3_get_wol, - .set_wol = vmxnet3_set_wol, - .get_link = ethtool_op_get_link, - .get_strings = vmxnet3_get_strings, - .get_sset_count = vmxnet3_get_sset_count, - .get_ethtool_stats = vmxnet3_get_ethtool_stats, - .get_ringparam = vmxnet3_get_ringparam, - .set_ringparam = vmxnet3_set_ringparam, - .get_rxnfc = vmxnet3_get_rxnfc, -#ifdef VMXNET3_RSS - .get_rxfh_indir_size = vmxnet3_get_rss_indir_size, - .get_rxfh_indir = vmxnet3_get_rss_indir, - .set_rxfh_indir = vmxnet3_set_rss_indir, -#endif -}; - -void vmxnet3_set_ethtool_ops(struct net_device *netdev) -{ - SET_ETHTOOL_OPS(netdev, &vmxnet3_ethtool_ops); -} diff --git a/ANDROID_3.4.5/drivers/net/vmxnet3/vmxnet3_int.h b/ANDROID_3.4.5/drivers/net/vmxnet3/vmxnet3_int.h deleted file mode 100644 index fc46a81a..00000000 --- a/ANDROID_3.4.5/drivers/net/vmxnet3/vmxnet3_int.h +++ /dev/null @@ -1,416 +0,0 @@ -/* - * Linux driver for VMware's vmxnet3 ethernet NIC. - * - * Copyright (C) 2008-2009, VMware, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; version 2 of the License and no later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * The full GNU General Public License is included in this distribution in - * the file called "COPYING". - * - * Maintained by: Shreyas Bhatewara <pv-drivers@vmware.com> - * - */ - -#ifndef _VMXNET3_INT_H -#define _VMXNET3_INT_H - -#include <linux/bitops.h> -#include <linux/ethtool.h> -#include <linux/delay.h> -#include <linux/netdevice.h> -#include <linux/pci.h> -#include <linux/compiler.h> -#include <linux/slab.h> -#include <linux/spinlock.h> -#include <linux/ioport.h> -#include <linux/highmem.h> -#include <linux/init.h> -#include <linux/timer.h> -#include <linux/skbuff.h> -#include <linux/interrupt.h> -#include <linux/workqueue.h> -#include <linux/uaccess.h> -#include <asm/dma.h> -#include <asm/page.h> - -#include <linux/tcp.h> -#include <linux/udp.h> -#include <linux/ip.h> -#include <linux/ipv6.h> -#include <linux/in.h> -#include <linux/etherdevice.h> -#include <asm/checksum.h> -#include <linux/if_vlan.h> -#include <linux/if_arp.h> -#include <linux/inetdevice.h> -#include <linux/log2.h> - -#include "vmxnet3_defs.h" - -#ifdef DEBUG -# define VMXNET3_DRIVER_VERSION_REPORT VMXNET3_DRIVER_VERSION_STRING"-NAPI(debug)" -#else -# define VMXNET3_DRIVER_VERSION_REPORT VMXNET3_DRIVER_VERSION_STRING"-NAPI" -#endif - - -/* - * Version numbers - */ -#define VMXNET3_DRIVER_VERSION_STRING "1.1.29.0-k" - -/* a 32-bit int, each byte encode a verion number in VMXNET3_DRIVER_VERSION */ -#define VMXNET3_DRIVER_VERSION_NUM 0x01011D00 - -#if defined(CONFIG_PCI_MSI) - /* RSS only makes sense if MSI-X is supported. */ - #define VMXNET3_RSS -#endif - -/* - * Capabilities - */ - -enum { - VMNET_CAP_SG = 0x0001, /* Can do scatter-gather transmits. */ - VMNET_CAP_IP4_CSUM = 0x0002, /* Can checksum only TCP/UDP over - * IPv4 */ - VMNET_CAP_HW_CSUM = 0x0004, /* Can checksum all packets. */ - VMNET_CAP_HIGH_DMA = 0x0008, /* Can DMA to high memory. */ - VMNET_CAP_TOE = 0x0010, /* Supports TCP/IP offload. */ - VMNET_CAP_TSO = 0x0020, /* Supports TCP Segmentation - * offload */ - VMNET_CAP_SW_TSO = 0x0040, /* Supports SW TCP Segmentation */ - VMNET_CAP_VMXNET_APROM = 0x0080, /* Vmxnet APROM support */ - VMNET_CAP_HW_TX_VLAN = 0x0100, /* Can we do VLAN tagging in HW */ - VMNET_CAP_HW_RX_VLAN = 0x0200, /* Can we do VLAN untagging in HW */ - VMNET_CAP_SW_VLAN = 0x0400, /* VLAN tagging/untagging in SW */ - VMNET_CAP_WAKE_PCKT_RCV = 0x0800, /* Can wake on network packet recv? */ - VMNET_CAP_ENABLE_INT_INLINE = 0x1000, /* Enable Interrupt Inline */ - VMNET_CAP_ENABLE_HEADER_COPY = 0x2000, /* copy header for vmkernel */ - VMNET_CAP_TX_CHAIN = 0x4000, /* Guest can use multiple tx entries - * for a pkt */ - VMNET_CAP_RX_CHAIN = 0x8000, /* pkt can span multiple rx entries */ - VMNET_CAP_LPD = 0x10000, /* large pkt delivery */ - VMNET_CAP_BPF = 0x20000, /* BPF Support in VMXNET Virtual HW*/ - VMNET_CAP_SG_SPAN_PAGES = 0x40000, /* Scatter-gather can span multiple*/ - /* pages transmits */ - VMNET_CAP_IP6_CSUM = 0x80000, /* Can do IPv6 csum offload. */ - VMNET_CAP_TSO6 = 0x100000, /* TSO seg. offload for IPv6 pkts. */ - VMNET_CAP_TSO256k = 0x200000, /* Can do TSO seg offload for */ - /* pkts up to 256kB. */ - VMNET_CAP_UPT = 0x400000 /* Support UPT */ -}; - -/* - * PCI vendor and device IDs. - */ -#define PCI_VENDOR_ID_VMWARE 0x15AD -#define PCI_DEVICE_ID_VMWARE_VMXNET3 0x07B0 -#define MAX_ETHERNET_CARDS 10 -#define MAX_PCI_PASSTHRU_DEVICE 6 - -struct vmxnet3_cmd_ring { - union Vmxnet3_GenericDesc *base; - u32 size; - u32 next2fill; - u32 next2comp; - u8 gen; - dma_addr_t basePA; -}; - -static inline void -vmxnet3_cmd_ring_adv_next2fill(struct vmxnet3_cmd_ring *ring) -{ - ring->next2fill++; - if (unlikely(ring->next2fill == ring->size)) { - ring->next2fill = 0; - VMXNET3_FLIP_RING_GEN(ring->gen); - } -} - -static inline void -vmxnet3_cmd_ring_adv_next2comp(struct vmxnet3_cmd_ring *ring) -{ - VMXNET3_INC_RING_IDX_ONLY(ring->next2comp, ring->size); -} - -static inline int -vmxnet3_cmd_ring_desc_avail(struct vmxnet3_cmd_ring *ring) -{ - return (ring->next2comp > ring->next2fill ? 0 : ring->size) + - ring->next2comp - ring->next2fill - 1; -} - -struct vmxnet3_comp_ring { - union Vmxnet3_GenericDesc *base; - u32 size; - u32 next2proc; - u8 gen; - u8 intr_idx; - dma_addr_t basePA; -}; - -static inline void -vmxnet3_comp_ring_adv_next2proc(struct vmxnet3_comp_ring *ring) -{ - ring->next2proc++; - if (unlikely(ring->next2proc == ring->size)) { - ring->next2proc = 0; - VMXNET3_FLIP_RING_GEN(ring->gen); - } -} - -struct vmxnet3_tx_data_ring { - struct Vmxnet3_TxDataDesc *base; - u32 size; - dma_addr_t basePA; -}; - -enum vmxnet3_buf_map_type { - VMXNET3_MAP_INVALID = 0, - VMXNET3_MAP_NONE, - VMXNET3_MAP_SINGLE, - VMXNET3_MAP_PAGE, -}; - -struct vmxnet3_tx_buf_info { - u32 map_type; - u16 len; - u16 sop_idx; - dma_addr_t dma_addr; - struct sk_buff *skb; -}; - -struct vmxnet3_tq_driver_stats { - u64 drop_total; /* # of pkts dropped by the driver, the - * counters below track droppings due to - * different reasons - */ - u64 drop_too_many_frags; - u64 drop_oversized_hdr; - u64 drop_hdr_inspect_err; - u64 drop_tso; - - u64 tx_ring_full; - u64 linearized; /* # of pkts linearized */ - u64 copy_skb_header; /* # of times we have to copy skb header */ - u64 oversized_hdr; -}; - -struct vmxnet3_tx_ctx { - bool ipv4; - u16 mss; - u32 eth_ip_hdr_size; /* only valid for pkts requesting tso or csum - * offloading - */ - u32 l4_hdr_size; /* only valid if mss != 0 */ - u32 copy_size; /* # of bytes copied into the data ring */ - union Vmxnet3_GenericDesc *sop_txd; - union Vmxnet3_GenericDesc *eop_txd; -}; - -struct vmxnet3_tx_queue { - char name[IFNAMSIZ+8]; /* To identify interrupt */ - struct vmxnet3_adapter *adapter; - spinlock_t tx_lock; - struct vmxnet3_cmd_ring tx_ring; - struct vmxnet3_tx_buf_info *buf_info; - struct vmxnet3_tx_data_ring data_ring; - struct vmxnet3_comp_ring comp_ring; - struct Vmxnet3_TxQueueCtrl *shared; - struct vmxnet3_tq_driver_stats stats; - bool stopped; - int num_stop; /* # of times the queue is - * stopped */ - int qid; -} __attribute__((__aligned__(SMP_CACHE_BYTES))); - -enum vmxnet3_rx_buf_type { - VMXNET3_RX_BUF_NONE = 0, - VMXNET3_RX_BUF_SKB = 1, - VMXNET3_RX_BUF_PAGE = 2 -}; - -struct vmxnet3_rx_buf_info { - enum vmxnet3_rx_buf_type buf_type; - u16 len; - union { - struct sk_buff *skb; - struct page *page; - }; - dma_addr_t dma_addr; -}; - -struct vmxnet3_rx_ctx { - struct sk_buff *skb; - u32 sop_idx; -}; - -struct vmxnet3_rq_driver_stats { - u64 drop_total; - u64 drop_err; - u64 drop_fcs; - u64 rx_buf_alloc_failure; -}; - -struct vmxnet3_rx_queue { - char name[IFNAMSIZ + 8]; /* To identify interrupt */ - struct vmxnet3_adapter *adapter; - struct napi_struct napi; - struct vmxnet3_cmd_ring rx_ring[2]; - struct vmxnet3_comp_ring comp_ring; - struct vmxnet3_rx_ctx rx_ctx; - u32 qid; /* rqID in RCD for buffer from 1st ring */ - u32 qid2; /* rqID in RCD for buffer from 2nd ring */ - u32 uncommitted[2]; /* # of buffers allocated since last RXPROD - * update */ - struct vmxnet3_rx_buf_info *buf_info[2]; - struct Vmxnet3_RxQueueCtrl *shared; - struct vmxnet3_rq_driver_stats stats; -} __attribute__((__aligned__(SMP_CACHE_BYTES))); - -#define VMXNET3_DEVICE_MAX_TX_QUEUES 8 -#define VMXNET3_DEVICE_MAX_RX_QUEUES 8 /* Keep this value as a power of 2 */ - -/* Should be less than UPT1_RSS_MAX_IND_TABLE_SIZE */ -#define VMXNET3_RSS_IND_TABLE_SIZE (VMXNET3_DEVICE_MAX_RX_QUEUES * 4) - -#define VMXNET3_LINUX_MAX_MSIX_VECT (VMXNET3_DEVICE_MAX_TX_QUEUES + \ - VMXNET3_DEVICE_MAX_RX_QUEUES + 1) -#define VMXNET3_LINUX_MIN_MSIX_VECT 2 /* 1 for tx-rx pair and 1 for event */ - - -struct vmxnet3_intr { - enum vmxnet3_intr_mask_mode mask_mode; - enum vmxnet3_intr_type type; /* MSI-X, MSI, or INTx? */ - u8 num_intrs; /* # of intr vectors */ - u8 event_intr_idx; /* idx of the intr vector for event */ - u8 mod_levels[VMXNET3_LINUX_MAX_MSIX_VECT]; /* moderation level */ - char event_msi_vector_name[IFNAMSIZ+11]; -#ifdef CONFIG_PCI_MSI - struct msix_entry msix_entries[VMXNET3_LINUX_MAX_MSIX_VECT]; -#endif -}; - -/* Interrupt sharing schemes, share_intr */ -#define VMXNET3_INTR_BUDDYSHARE 0 /* Corresponding tx,rx queues share irq */ -#define VMXNET3_INTR_TXSHARE 1 /* All tx queues share one irq */ -#define VMXNET3_INTR_DONTSHARE 2 /* each queue has its own irq */ - - -#define VMXNET3_STATE_BIT_RESETTING 0 -#define VMXNET3_STATE_BIT_QUIESCED 1 -struct vmxnet3_adapter { - struct vmxnet3_tx_queue tx_queue[VMXNET3_DEVICE_MAX_TX_QUEUES]; - struct vmxnet3_rx_queue rx_queue[VMXNET3_DEVICE_MAX_RX_QUEUES]; - unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; - struct vmxnet3_intr intr; - spinlock_t cmd_lock; - struct Vmxnet3_DriverShared *shared; - struct Vmxnet3_PMConf *pm_conf; - struct Vmxnet3_TxQueueDesc *tqd_start; /* all tx queue desc */ - struct Vmxnet3_RxQueueDesc *rqd_start; /* all rx queue desc */ - struct net_device *netdev; - struct pci_dev *pdev; - - u8 __iomem *hw_addr0; /* for BAR 0 */ - u8 __iomem *hw_addr1; /* for BAR 1 */ - -#ifdef VMXNET3_RSS - struct UPT1_RSSConf *rss_conf; - bool rss; -#endif - u32 num_rx_queues; - u32 num_tx_queues; - - /* rx buffer related */ - unsigned skb_buf_size; - int rx_buf_per_pkt; /* only apply to the 1st ring */ - dma_addr_t shared_pa; - dma_addr_t queue_desc_pa; - - /* Wake-on-LAN */ - u32 wol; - - /* Link speed */ - u32 link_speed; /* in mbps */ - - u64 tx_timeout_count; - struct work_struct work; - - unsigned long state; /* VMXNET3_STATE_BIT_xxx */ - - int dev_number; - int share_intr; -}; - -#define VMXNET3_WRITE_BAR0_REG(adapter, reg, val) \ - writel((val), (adapter)->hw_addr0 + (reg)) -#define VMXNET3_READ_BAR0_REG(adapter, reg) \ - readl((adapter)->hw_addr0 + (reg)) - -#define VMXNET3_WRITE_BAR1_REG(adapter, reg, val) \ - writel((val), (adapter)->hw_addr1 + (reg)) -#define VMXNET3_READ_BAR1_REG(adapter, reg) \ - readl((adapter)->hw_addr1 + (reg)) - -#define VMXNET3_WAKE_QUEUE_THRESHOLD(tq) (5) -#define VMXNET3_RX_ALLOC_THRESHOLD(rq, ring_idx, adapter) \ - ((rq)->rx_ring[ring_idx].size >> 3) - -#define VMXNET3_GET_ADDR_LO(dma) ((u32)(dma)) -#define VMXNET3_GET_ADDR_HI(dma) ((u32)(((u64)(dma)) >> 32)) - -/* must be a multiple of VMXNET3_RING_SIZE_ALIGN */ -#define VMXNET3_DEF_TX_RING_SIZE 512 -#define VMXNET3_DEF_RX_RING_SIZE 256 - -#define VMXNET3_MAX_ETH_HDR_SIZE 22 -#define VMXNET3_MAX_SKB_BUF_SIZE (3*1024) - -int -vmxnet3_quiesce_dev(struct vmxnet3_adapter *adapter); - -int -vmxnet3_activate_dev(struct vmxnet3_adapter *adapter); - -void -vmxnet3_force_close(struct vmxnet3_adapter *adapter); - -void -vmxnet3_reset_dev(struct vmxnet3_adapter *adapter); - -void -vmxnet3_tq_destroy_all(struct vmxnet3_adapter *adapter); - -void -vmxnet3_rq_destroy_all(struct vmxnet3_adapter *adapter); - -int -vmxnet3_set_features(struct net_device *netdev, netdev_features_t features); - -int -vmxnet3_create_queues(struct vmxnet3_adapter *adapter, - u32 tx_ring_size, u32 rx_ring_size, u32 rx_ring2_size); - -extern void vmxnet3_set_ethtool_ops(struct net_device *netdev); - -extern struct rtnl_link_stats64 * -vmxnet3_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats); - -extern char vmxnet3_driver_name[]; -#endif |