forked from Minki/linux
1ecedc926b
On deleting filters which are links to a child hash table, the filters
in the child hash table must be cleared from the hardware if there
is no link between the parent and child hash table.
Verified with the following filters:
Create a child hash table:
handle 1: u32 divisor 1
Link to the child hash table from parent hash table:
handle 800:0:10 u32 ht 800: link 1: \
offset at 0 mask 0f00 shift 6 plus 0 eat \
match ip protocol 6 ff match ip dst 15.0.0.1/32
Add filters into child hash table:
handle 1:0:2 u32 ht 1: \
match tcp src 22 ffff action drop
handle 1:0:3 u32 ht 1: \
match tcp src 33 ffff action drop
Delete link filter from parent hash table:
handle 800:0:10 u32
Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com>
Acked-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
122 lines
3.5 KiB
C
122 lines
3.5 KiB
C
/*******************************************************************************
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*
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* Intel 10 Gigabit PCI Express Linux drive
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* Copyright(c) 2016 Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* The full GNU General Public License is included in this distribution in
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* the file called "COPYING".
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*
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* Contact Information:
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* e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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******************************************************************************/
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#ifndef _IXGBE_MODEL_H_
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#define _IXGBE_MODEL_H_
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#include "ixgbe.h"
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#include "ixgbe_type.h"
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struct ixgbe_mat_field {
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unsigned int off;
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int (*val)(struct ixgbe_fdir_filter *input,
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union ixgbe_atr_input *mask,
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u32 val, u32 m);
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unsigned int type;
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};
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struct ixgbe_jump_table {
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struct ixgbe_mat_field *mat;
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struct ixgbe_fdir_filter *input;
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union ixgbe_atr_input *mask;
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u32 link_hdl;
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unsigned long child_loc_map[32];
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};
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#define IXGBE_MAX_HW_ENTRIES 2045
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static inline int ixgbe_mat_prgm_sip(struct ixgbe_fdir_filter *input,
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union ixgbe_atr_input *mask,
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u32 val, u32 m)
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{
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input->filter.formatted.src_ip[0] = val;
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mask->formatted.src_ip[0] = m;
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return 0;
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}
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static inline int ixgbe_mat_prgm_dip(struct ixgbe_fdir_filter *input,
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union ixgbe_atr_input *mask,
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u32 val, u32 m)
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{
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input->filter.formatted.dst_ip[0] = val;
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mask->formatted.dst_ip[0] = m;
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return 0;
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}
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static struct ixgbe_mat_field ixgbe_ipv4_fields[] = {
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{ .off = 12, .val = ixgbe_mat_prgm_sip,
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.type = IXGBE_ATR_FLOW_TYPE_IPV4},
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{ .off = 16, .val = ixgbe_mat_prgm_dip,
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.type = IXGBE_ATR_FLOW_TYPE_IPV4},
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{ .val = NULL } /* terminal node */
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};
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static inline int ixgbe_mat_prgm_ports(struct ixgbe_fdir_filter *input,
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union ixgbe_atr_input *mask,
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u32 val, u32 m)
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{
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input->filter.formatted.src_port = val & 0xffff;
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mask->formatted.src_port = m & 0xffff;
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input->filter.formatted.dst_port = val >> 16;
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mask->formatted.dst_port = m >> 16;
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return 0;
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};
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static struct ixgbe_mat_field ixgbe_tcp_fields[] = {
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{.off = 0, .val = ixgbe_mat_prgm_ports,
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.type = IXGBE_ATR_FLOW_TYPE_TCPV4},
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{ .val = NULL } /* terminal node */
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};
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static struct ixgbe_mat_field ixgbe_udp_fields[] = {
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{.off = 0, .val = ixgbe_mat_prgm_ports,
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.type = IXGBE_ATR_FLOW_TYPE_UDPV4},
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{ .val = NULL } /* terminal node */
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};
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struct ixgbe_nexthdr {
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/* offset, shift, and mask of position to next header */
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unsigned int o;
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u32 s;
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u32 m;
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/* match criteria to make this jump*/
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unsigned int off;
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u32 val;
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u32 mask;
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/* location of jump to make */
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struct ixgbe_mat_field *jump;
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};
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static struct ixgbe_nexthdr ixgbe_ipv4_jumps[] = {
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{ .o = 0, .s = 6, .m = 0xf,
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.off = 8, .val = 0x600, .mask = 0xff00, .jump = ixgbe_tcp_fields},
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{ .o = 0, .s = 6, .m = 0xf,
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.off = 8, .val = 0x1100, .mask = 0xff00, .jump = ixgbe_udp_fields},
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{ .jump = NULL } /* terminal node */
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};
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#endif /* _IXGBE_MODEL_H_ */
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