a145df23ef
This patch adds supports for Accelerated Receive Flow Steering. When the desired rx is different from current rq, for a flow, kernel calls the driver function enic_rx_flow_steer(). enic_rx_flow_steer adds a IP-TCP/UDP hardware filter. Driver registers a timer function enic_flow_may_expire. This function is called every HZ/4 seconds. In this function we check if the added filter has expired by calling rps_may_expire_flow(). If the flow has expired, it removes the hw filter. As of now adaptor supports only IPv4 - TCP/UDP filters. Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
59 lines
2.1 KiB
C
59 lines
2.1 KiB
C
/*
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* Copyright 2008-2010 Cisco Systems, Inc. All rights reserved.
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* Copyright 2007 Nuova Systems, Inc. All rights reserved.
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*
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* This program is free software; you may redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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#ifndef _VNIC_ENIC_H_
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#define _VNIC_ENIC_H_
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/* Device-specific region: enet configuration */
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struct vnic_enet_config {
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u32 flags;
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u32 wq_desc_count;
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u32 rq_desc_count;
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u16 mtu;
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u16 intr_timer_deprecated;
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u8 intr_timer_type;
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u8 intr_mode;
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char devname[16];
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u32 intr_timer_usec;
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u16 loop_tag;
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u16 vf_rq_count;
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u16 num_arfs;
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};
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#define VENETF_TSO 0x1 /* TSO enabled */
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#define VENETF_LRO 0x2 /* LRO enabled */
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#define VENETF_RXCSUM 0x4 /* RX csum enabled */
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#define VENETF_TXCSUM 0x8 /* TX csum enabled */
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#define VENETF_RSS 0x10 /* RSS enabled */
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#define VENETF_RSSHASH_IPV4 0x20 /* Hash on IPv4 fields */
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#define VENETF_RSSHASH_TCPIPV4 0x40 /* Hash on TCP + IPv4 fields */
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#define VENETF_RSSHASH_IPV6 0x80 /* Hash on IPv6 fields */
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#define VENETF_RSSHASH_TCPIPV6 0x100 /* Hash on TCP + IPv6 fields */
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#define VENETF_RSSHASH_IPV6_EX 0x200 /* Hash on IPv6 extended fields */
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#define VENETF_RSSHASH_TCPIPV6_EX 0x400 /* Hash on TCP + IPv6 ext. fields */
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#define VENETF_LOOP 0x800 /* Loopback enabled */
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#define VENET_INTR_TYPE_MIN 0 /* Timer specs min interrupt spacing */
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#define VENET_INTR_TYPE_IDLE 1 /* Timer specs idle time before irq */
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#define VENET_INTR_MODE_ANY 0 /* Try MSI-X, then MSI, then INTx */
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#define VENET_INTR_MODE_MSI 1 /* Try MSI then INTx */
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#define VENET_INTR_MODE_INTX 2 /* Try INTx only */
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#endif /* _VNIC_ENIC_H_ */
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