[deliverable/linux.git] / drivers / net / igb / e1000_82575.h

/*******************************************************************************

  Intel(R) Gigabit Ethernet Linux driver
  Copyright(c) 2007 Intel Corporation.

  This program is free software; you can redistribute it and/or modify it
  under the terms and conditions of the GNU General Public License,
  version 2, as published by the Free Software Foundation.

  This program is distributed in the hope it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  FITNESS FOR A PARTICULAR PURPOSE.  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".

  Contact Information:
  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497

*******************************************************************************/

#ifndef _E1000_82575_H_
#define _E1000_82575_H_

#define E1000_RAR_ENTRIES_82575   16

/* SRRCTL bit definitions */
#define E1000_SRRCTL_BSIZEPKT_SHIFT                     10 /* Shift _right_ */
#define E1000_SRRCTL_BSIZEHDRSIZE_SHIFT                 2  /* Shift _left_ */
#define E1000_SRRCTL_DESCTYPE_ADV_ONEBUF                0x02000000
#define E1000_SRRCTL_DESCTYPE_HDR_SPLIT_ALWAYS          0x0A000000

#define E1000_MRQC_ENABLE_RSS_4Q            0x00000002
#define E1000_MRQC_RSS_FIELD_IPV4_UDP       0x00400000
#define E1000_MRQC_RSS_FIELD_IPV6_UDP       0x00800000
#define E1000_MRQC_RSS_FIELD_IPV6_UDP_EX    0x01000000

#define E1000_EICR_TX_QUEUE ( \
    E1000_EICR_TX_QUEUE0 |    \
    E1000_EICR_TX_QUEUE1 |    \
    E1000_EICR_TX_QUEUE2 |    \
    E1000_EICR_TX_QUEUE3)

#define E1000_EICR_RX_QUEUE ( \
    E1000_EICR_RX_QUEUE0 |    \
    E1000_EICR_RX_QUEUE1 |    \
    E1000_EICR_RX_QUEUE2 |    \
    E1000_EICR_RX_QUEUE3)

#define E1000_EIMS_RX_QUEUE E1000_EICR_RX_QUEUE
#define E1000_EIMS_TX_QUEUE E1000_EICR_TX_QUEUE

/* Immediate Interrupt RX (A.K.A. Low Latency Interrupt) */

/* Receive Descriptor - Advanced */
union e1000_adv_rx_desc {
	struct {
		__le64 pkt_addr;             /* Packet buffer address */
		__le64 hdr_addr;             /* Header buffer address */
	} read;
	struct {
		struct {
			struct {
				__le16 pkt_info;   /* RSS type, Packet type */
				__le16 hdr_info;   /* Split Header,
						    * header buffer length */
			} lo_dword;
			union {
				__le32 rss;          /* RSS Hash */
				struct {
					__le16 ip_id;    /* IP id */
					__le16 csum;     /* Packet Checksum */
				} csum_ip;
			} hi_dword;
		} lower;
		struct {
			__le32 status_error;     /* ext status/error */
			__le16 length;           /* Packet length */
			__le16 vlan;             /* VLAN tag */
		} upper;
	} wb;  /* writeback */
};

#define E1000_RXDADV_HDRBUFLEN_MASK      0x7FE0
#define E1000_RXDADV_HDRBUFLEN_SHIFT     5

/* RSS Hash results */

/* RSS Packet Types as indicated in the receive descriptor */

/* Transmit Descriptor - Advanced */
union e1000_adv_tx_desc {
	struct {
		__le64 buffer_addr;    /* Address of descriptor's data buf */
		__le32 cmd_type_len;
		__le32 olinfo_status;
	} read;
	struct {
		__le64 rsvd;       /* Reserved */
		__le32 nxtseq_seed;
		__le32 status;
	} wb;
};

/* Adv Transmit Descriptor Config Masks */
#define E1000_ADVTXD_DTYP_CTXT    0x00200000 /* Advanced Context Descriptor */
#define E1000_ADVTXD_DTYP_DATA    0x00300000 /* Advanced Data Descriptor */
#define E1000_ADVTXD_DCMD_IFCS    0x02000000 /* Insert FCS (Ethernet CRC) */
#define E1000_ADVTXD_DCMD_DEXT    0x20000000 /* Descriptor extension (1=Adv) */
#define E1000_ADVTXD_DCMD_VLE     0x40000000 /* VLAN pkt enable */
#define E1000_ADVTXD_DCMD_TSE     0x80000000 /* TCP Seg enable */
#define E1000_ADVTXD_PAYLEN_SHIFT    14 /* Adv desc PAYLEN shift */

/* Context descriptors */
struct e1000_adv_tx_context_desc {
	__le32 vlan_macip_lens;
	__le32 seqnum_seed;
	__le32 type_tucmd_mlhl;
	__le32 mss_l4len_idx;
};

#define E1000_ADVTXD_MACLEN_SHIFT    9  /* Adv ctxt desc mac len shift */
#define E1000_ADVTXD_TUCMD_IPV4    0x00000400  /* IP Packet Type: 1=IPv4 */
#define E1000_ADVTXD_TUCMD_L4T_TCP 0x00000800  /* L4 Packet TYPE of TCP */
/* IPSec Encrypt Enable for ESP */
#define E1000_ADVTXD_L4LEN_SHIFT     8  /* Adv ctxt L4LEN shift */
#define E1000_ADVTXD_MSS_SHIFT      16  /* Adv ctxt MSS shift */
/* Adv ctxt IPSec SA IDX mask */
/* Adv ctxt IPSec ESP len mask */

/* Additional Transmit Descriptor Control definitions */
#define E1000_TXDCTL_QUEUE_ENABLE  0x02000000 /* Enable specific Tx Queue */
/* Tx Queue Arbitration Priority 0=low, 1=high */

/* Additional Receive Descriptor Control definitions */
#define E1000_RXDCTL_QUEUE_ENABLE  0x02000000 /* Enable specific Rx Queue */

/* Direct Cache Access (DCA) definitions */


#define E1000_DCA_TXCTRL_TX_WB_RO_EN (1 << 11) /* TX Desc writeback RO bit */

#endif
Commit	Line	Data
9d5c8243 AK	1	/*******************************************************************************
	2
	3	Intel(R) Gigabit Ethernet Linux driver
	4	Copyright(c) 2007 Intel Corporation.
	5
	6	This program is free software; you can redistribute it and/or modify it
	7	under the terms and conditions of the GNU General Public License,
	8	version 2, as published by the Free Software Foundation.
	9
	10	This program is distributed in the hope it will be useful, but WITHOUT
	11	ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	12	FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	13	more details.
	14
	15	You should have received a copy of the GNU General Public License along with
	16	this program; if not, write to the Free Software Foundation, Inc.,
	17	51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
	18
	19	The full GNU General Public License is included in this distribution in
	20	the file called "COPYING".
	21
	22	Contact Information:
	23	e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
	24	Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
	25
	26	*******************************************************************************/
	27
	28	#ifndef _E1000_82575_H_
	29	#define _E1000_82575_H_
	30
	31	#define E1000_RAR_ENTRIES_82575 16
	32
	33	/* SRRCTL bit definitions */
	34	#define E1000_SRRCTL_BSIZEPKT_SHIFT 10 /* Shift _right_ */
	35	#define E1000_SRRCTL_BSIZEHDRSIZE_SHIFT 2 /* Shift _left_ */
	36	#define E1000_SRRCTL_DESCTYPE_ADV_ONEBUF 0x02000000
	37	#define E1000_SRRCTL_DESCTYPE_HDR_SPLIT_ALWAYS 0x0A000000
	38
	39	#define E1000_MRQC_ENABLE_RSS_4Q 0x00000002
	40	#define E1000_MRQC_RSS_FIELD_IPV4_UDP 0x00400000
	41	#define E1000_MRQC_RSS_FIELD_IPV6_UDP 0x00800000
	42	#define E1000_MRQC_RSS_FIELD_IPV6_UDP_EX 0x01000000
	43
	44	#define E1000_EICR_TX_QUEUE ( \
	45	E1000_EICR_TX_QUEUE0 \| \
	46	E1000_EICR_TX_QUEUE1 \| \
	47	E1000_EICR_TX_QUEUE2 \| \
	48	E1000_EICR_TX_QUEUE3)
	49
	50	#define E1000_EICR_RX_QUEUE ( \
	51	E1000_EICR_RX_QUEUE0 \| \
	52	E1000_EICR_RX_QUEUE1 \| \
	53	E1000_EICR_RX_QUEUE2 \| \
	54	E1000_EICR_RX_QUEUE3)
	55
	56	#define E1000_EIMS_RX_QUEUE E1000_EICR_RX_QUEUE
	57	#define E1000_EIMS_TX_QUEUE E1000_EICR_TX_QUEUE
	58
	59	/* Immediate Interrupt RX (A.K.A. Low Latency Interrupt) */
	60
	61	/* Receive Descriptor - Advanced */
	62	union e1000_adv_rx_desc {
	63	struct {
6d8126f9 AV	64	__le64 pkt_addr; /* Packet buffer address */
6d8126f9 AV	65	__le64 hdr_addr; /* Header buffer address */
9d5c8243 AK	66	} read;
	67	struct {
	68	struct {
	69	struct {
6d8126f9 AV	70	__le16 pkt_info; /* RSS type, Packet type */
	71	__le16 hdr_info; /* Split Header,
	72	* header buffer length */
9d5c8243 AK	73	} lo_dword;
9d5c8243 AK	74	union {
6d8126f9	75	__le32 rss; /* RSS Hash */
9d5c8243	76	struct {
6d8126f9 AV	77	__le16 ip_id; /* IP id */
6d8126f9 AV	78	__le16 csum; /* Packet Checksum */
9d5c8243 AK	79	} csum_ip;
	80	} hi_dword;
	81	} lower;
	82	struct {
6d8126f9 AV	83	__le32 status_error; /* ext status/error */
	84	__le16 length; /* Packet length */
	85	__le16 vlan; /* VLAN tag */
9d5c8243 AK	86	} upper;
	87	} wb; /* writeback */
	88	};
	89
	90	#define E1000_RXDADV_HDRBUFLEN_MASK 0x7FE0
	91	#define E1000_RXDADV_HDRBUFLEN_SHIFT 5
	92
	93	/* RSS Hash results */
	94
	95	/* RSS Packet Types as indicated in the receive descriptor */
	96
	97	/* Transmit Descriptor - Advanced */
	98	union e1000_adv_tx_desc {
	99	struct {
6d8126f9 AV	100	__le64 buffer_addr; /* Address of descriptor's data buf */
	101	__le32 cmd_type_len;
	102	__le32 olinfo_status;
9d5c8243 AK	103	} read;
9d5c8243 AK	104	struct {
6d8126f9 AV	105	__le64 rsvd; /* Reserved */
	106	__le32 nxtseq_seed;
	107	__le32 status;
9d5c8243 AK	108	} wb;
	109	};
	110
	111	/* Adv Transmit Descriptor Config Masks */
	112	#define E1000_ADVTXD_DTYP_CTXT 0x00200000 /* Advanced Context Descriptor */
	113	#define E1000_ADVTXD_DTYP_DATA 0x00300000 /* Advanced Data Descriptor */
	114	#define E1000_ADVTXD_DCMD_IFCS 0x02000000 /* Insert FCS (Ethernet CRC) */
	115	#define E1000_ADVTXD_DCMD_DEXT 0x20000000 /* Descriptor extension (1=Adv) */
	116	#define E1000_ADVTXD_DCMD_VLE 0x40000000 /* VLAN pkt enable */
	117	#define E1000_ADVTXD_DCMD_TSE 0x80000000 /* TCP Seg enable */
	118	#define E1000_ADVTXD_PAYLEN_SHIFT 14 /* Adv desc PAYLEN shift */
	119
	120	/* Context descriptors */
	121	struct e1000_adv_tx_context_desc {
6d8126f9 AV	122	__le32 vlan_macip_lens;
	123	__le32 seqnum_seed;
	124	__le32 type_tucmd_mlhl;
	125	__le32 mss_l4len_idx;
9d5c8243 AK	126	};
	127
	128	#define E1000_ADVTXD_MACLEN_SHIFT 9 /* Adv ctxt desc mac len shift */
	129	#define E1000_ADVTXD_TUCMD_IPV4 0x00000400 /* IP Packet Type: 1=IPv4 */
	130	#define E1000_ADVTXD_TUCMD_L4T_TCP 0x00000800 /* L4 Packet TYPE of TCP */
	131	/* IPSec Encrypt Enable for ESP */
	132	#define E1000_ADVTXD_L4LEN_SHIFT 8 /* Adv ctxt L4LEN shift */
	133	#define E1000_ADVTXD_MSS_SHIFT 16 /* Adv ctxt MSS shift */
	134	/* Adv ctxt IPSec SA IDX mask */
	135	/* Adv ctxt IPSec ESP len mask */
	136
	137	/* Additional Transmit Descriptor Control definitions */
	138	#define E1000_TXDCTL_QUEUE_ENABLE 0x02000000 /* Enable specific Tx Queue */
	139	/* Tx Queue Arbitration Priority 0=low, 1=high */
	140
	141	/* Additional Receive Descriptor Control definitions */
	142	#define E1000_RXDCTL_QUEUE_ENABLE 0x02000000 /* Enable specific Rx Queue */
	143
	144	/* Direct Cache Access (DCA) definitions */
	145
	146
	147
	148	#define E1000_DCA_TXCTRL_TX_WB_RO_EN (1 << 11) /* TX Desc writeback RO bit */
	149
	150	#endif