Commit 45b9f509 authored by Alexander Duyck's avatar Alexander Duyck Committed by David S. Miller
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ixgbe: update ntuple filter configuration



This change fixes several issues found in ntuple filtering while I was
doing the ATR refactor.

Specifically I updated the masks to work correctly with the latest version
of ethtool, I cleaned up the exception handling and added detailed error
output when a filter is rejected, and corrected several bits that were set
incorrectly in ixgbe_type.h.

The previous version of this patch included a printk that was left over from
me fixing the filter setup.  This patch does not include that printk.
Signed-off-by: default avatarAlexander Duyck <alexander.h.duyck@intel.com>
Tested-by: default avatarStephen Ko <stephen.s.ko@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 69830529
......@@ -533,20 +533,6 @@ extern s32 ixgbe_fdir_add_perfect_filter_82599(struct ixgbe_hw *hw,
union ixgbe_atr_input *input,
struct ixgbe_atr_input_masks *input_masks,
u16 soft_id, u8 queue);
extern s32 ixgbe_atr_set_vlan_id_82599(union ixgbe_atr_input *input,
u16 vlan_id);
extern s32 ixgbe_atr_set_src_ipv4_82599(union ixgbe_atr_input *input,
u32 src_addr);
extern s32 ixgbe_atr_set_dst_ipv4_82599(union ixgbe_atr_input *input,
u32 dst_addr);
extern s32 ixgbe_atr_set_src_port_82599(union ixgbe_atr_input *input,
u16 src_port);
extern s32 ixgbe_atr_set_dst_port_82599(union ixgbe_atr_input *input,
u16 dst_port);
extern s32 ixgbe_atr_set_flex_byte_82599(union ixgbe_atr_input *input,
u16 flex_byte);
extern s32 ixgbe_atr_set_l4type_82599(union ixgbe_atr_input *input,
u8 l4type);
extern void ixgbe_configure_rscctl(struct ixgbe_adapter *adapter,
struct ixgbe_ring *ring);
extern void ixgbe_clear_rscctl(struct ixgbe_adapter *adapter,
......
......@@ -1421,211 +1421,6 @@ static u32 ixgbe_atr_compute_sig_hash_82599(union ixgbe_atr_hash_dword input,
return sig_hash ^ bucket_hash;
}
/**
* ixgbe_atr_set_vlan_id_82599 - Sets the VLAN id in the ATR input stream
* @input: input stream to modify
* @vlan: the VLAN id to load
**/
s32 ixgbe_atr_set_vlan_id_82599(union ixgbe_atr_input *input, __be16 vlan)
{
input->formatted.vlan_id = vlan;
return 0;
}
/**
* ixgbe_atr_set_src_ipv4_82599 - Sets the source IPv4 address
* @input: input stream to modify
* @src_addr: the IP address to load
**/
s32 ixgbe_atr_set_src_ipv4_82599(union ixgbe_atr_input *input, __be32 src_addr)
{
input->formatted.src_ip[0] = src_addr;
return 0;
}
/**
* ixgbe_atr_set_dst_ipv4_82599 - Sets the destination IPv4 address
* @input: input stream to modify
* @dst_addr: the IP address to load
**/
s32 ixgbe_atr_set_dst_ipv4_82599(union ixgbe_atr_input *input, __be32 dst_addr)
{
input->formatted.dst_ip[0] = dst_addr;
return 0;
}
/**
* ixgbe_atr_set_src_port_82599 - Sets the source port
* @input: input stream to modify
* @src_port: the source port to load
**/
s32 ixgbe_atr_set_src_port_82599(union ixgbe_atr_input *input, __be16 src_port)
{
input->formatted.src_port = src_port;
return 0;
}
/**
* ixgbe_atr_set_dst_port_82599 - Sets the destination port
* @input: input stream to modify
* @dst_port: the destination port to load
**/
s32 ixgbe_atr_set_dst_port_82599(union ixgbe_atr_input *input, __be16 dst_port)
{
input->formatted.dst_port = dst_port;
return 0;
}
/**
* ixgbe_atr_set_flex_byte_82599 - Sets the flexible bytes
* @input: input stream to modify
* @flex_bytes: the flexible bytes to load
**/
s32 ixgbe_atr_set_flex_byte_82599(union ixgbe_atr_input *input,
__be16 flex_bytes)
{
input->formatted.flex_bytes = flex_bytes;
return 0;
}
/**
* ixgbe_atr_set_l4type_82599 - Sets the layer 4 packet type
* @input: input stream to modify
* @l4type: the layer 4 type value to load
**/
s32 ixgbe_atr_set_l4type_82599(union ixgbe_atr_input *input, u8 l4type)
{
input->formatted.flow_type = l4type;
return 0;
}
/**
* ixgbe_atr_get_vlan_id_82599 - Gets the VLAN id from the ATR input stream
* @input: input stream to search
* @vlan: the VLAN id to load
**/
static s32 ixgbe_atr_get_vlan_id_82599(union ixgbe_atr_input *input, __be16 *vlan)
{
*vlan = input->formatted.vlan_id;
return 0;
}
/**
* ixgbe_atr_get_src_ipv4_82599 - Gets the source IPv4 address
* @input: input stream to search
* @src_addr: the IP address to load
**/
static s32 ixgbe_atr_get_src_ipv4_82599(union ixgbe_atr_input *input,
__be32 *src_addr)
{
*src_addr = input->formatted.src_ip[0];
return 0;
}
/**
* ixgbe_atr_get_dst_ipv4_82599 - Gets the destination IPv4 address
* @input: input stream to search
* @dst_addr: the IP address to load
**/
static s32 ixgbe_atr_get_dst_ipv4_82599(union ixgbe_atr_input *input,
__be32 *dst_addr)
{
*dst_addr = input->formatted.dst_ip[0];
return 0;
}
/**
* ixgbe_atr_get_src_ipv6_82599 - Gets the source IPv6 address
* @input: input stream to search
* @src_addr_1: the first 4 bytes of the IP address to load
* @src_addr_2: the second 4 bytes of the IP address to load
* @src_addr_3: the third 4 bytes of the IP address to load
* @src_addr_4: the fourth 4 bytes of the IP address to load
**/
static s32 ixgbe_atr_get_src_ipv6_82599(union ixgbe_atr_input *input,
__be32 *src_addr_0, __be32 *src_addr_1,
__be32 *src_addr_2, __be32 *src_addr_3)
{
*src_addr_0 = input->formatted.src_ip[0];
*src_addr_1 = input->formatted.src_ip[1];
*src_addr_2 = input->formatted.src_ip[2];
*src_addr_3 = input->formatted.src_ip[3];
return 0;
}
/**
* ixgbe_atr_get_src_port_82599 - Gets the source port
* @input: input stream to modify
* @src_port: the source port to load
*
* Even though the input is given in big-endian, the FDIRPORT registers
* expect the ports to be programmed in little-endian. Hence the need to swap
* endianness when retrieving the data. This can be confusing since the
* internal hash engine expects it to be big-endian.
**/
static s32 ixgbe_atr_get_src_port_82599(union ixgbe_atr_input *input,
__be16 *src_port)
{
*src_port = input->formatted.src_port;
return 0;
}
/**
* ixgbe_atr_get_dst_port_82599 - Gets the destination port
* @input: input stream to modify
* @dst_port: the destination port to load
*
* Even though the input is given in big-endian, the FDIRPORT registers
* expect the ports to be programmed in little-endian. Hence the need to swap
* endianness when retrieving the data. This can be confusing since the
* internal hash engine expects it to be big-endian.
**/
static s32 ixgbe_atr_get_dst_port_82599(union ixgbe_atr_input *input,
__be16 *dst_port)
{
*dst_port = input->formatted.dst_port;
return 0;
}
/**
* ixgbe_atr_get_flex_byte_82599 - Gets the flexible bytes
* @input: input stream to modify
* @flex_bytes: the flexible bytes to load
**/
static s32 ixgbe_atr_get_flex_byte_82599(union ixgbe_atr_input *input,
__be16 *flex_bytes)
{
*flex_bytes = input->formatted.flex_bytes;
return 0;
}
/**
* ixgbe_atr_get_l4type_82599 - Gets the layer 4 packet type
* @input: input stream to modify
* @l4type: the layer 4 type value to load
**/
static s32 ixgbe_atr_get_l4type_82599(union ixgbe_atr_input *input,
u8 *l4type)
{
*l4type = input->formatted.flow_type;
return 0;
}
/**
* ixgbe_atr_add_signature_filter_82599 - Adds a signature hash filter
* @hw: pointer to hardware structure
......@@ -1678,6 +1473,43 @@ s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
return 0;
}
/**
* ixgbe_get_fdirtcpm_82599 - generate a tcp port from atr_input_masks
* @input_mask: mask to be bit swapped
*
* The source and destination port masks for flow director are bit swapped
* in that bit 15 effects bit 0, 14 effects 1, 13, 2 etc. In order to
* generate a correctly swapped value we need to bit swap the mask and that
* is what is accomplished by this function.
**/
static u32 ixgbe_get_fdirtcpm_82599(struct ixgbe_atr_input_masks *input_masks)
{
u32 mask = ntohs(input_masks->dst_port_mask);
mask <<= IXGBE_FDIRTCPM_DPORTM_SHIFT;
mask |= ntohs(input_masks->src_port_mask);
mask = ((mask & 0x55555555) << 1) | ((mask & 0xAAAAAAAA) >> 1);
mask = ((mask & 0x33333333) << 2) | ((mask & 0xCCCCCCCC) >> 2);
mask = ((mask & 0x0F0F0F0F) << 4) | ((mask & 0xF0F0F0F0) >> 4);
return ((mask & 0x00FF00FF) << 8) | ((mask & 0xFF00FF00) >> 8);
}
/*
* These two macros are meant to address the fact that we have registers
* that are either all or in part big-endian. As a result on big-endian
* systems we will end up byte swapping the value to little-endian before
* it is byte swapped again and written to the hardware in the original
* big-endian format.
*/
#define IXGBE_STORE_AS_BE32(_value) \
(((u32)(_value) >> 24) | (((u32)(_value) & 0x00FF0000) >> 8) | \
(((u32)(_value) & 0x0000FF00) << 8) | ((u32)(_value) << 24))
#define IXGBE_WRITE_REG_BE32(a, reg, value) \
IXGBE_WRITE_REG((a), (reg), IXGBE_STORE_AS_BE32(ntohl(value)))
#define IXGBE_STORE_AS_BE16(_value) \
(((u16)(_value) >> 8) | ((u16)(_value) << 8))
/**
* ixgbe_fdir_add_perfect_filter_82599 - Adds a perfect filter
* @hw: pointer to hardware structure
......@@ -1694,131 +1526,135 @@ s32 ixgbe_fdir_add_perfect_filter_82599(struct ixgbe_hw *hw,
struct ixgbe_atr_input_masks *input_masks,
u16 soft_id, u8 queue)
{
u32 fdircmd = 0;
u32 fdirhash;
u32 src_ipv4 = 0, dst_ipv4 = 0;
u32 src_ipv6_1, src_ipv6_2, src_ipv6_3, src_ipv6_4;
u16 src_port, dst_port, vlan_id, flex_bytes;
u16 bucket_hash;
u8 l4type;
u8 fdirm = 0;
/* Get our input values */
ixgbe_atr_get_l4type_82599(input, &l4type);
u32 fdircmd;
u32 fdirport, fdirtcpm;
u32 fdirvlan;
/* start with VLAN, flex bytes, VM pool, and IPv6 destination masked */
u32 fdirm = IXGBE_FDIRM_VLANID | IXGBE_FDIRM_VLANP | IXGBE_FDIRM_FLEX |
IXGBE_FDIRM_POOL | IXGBE_FDIRM_DIPv6;
/*
* Check l4type formatting, and bail out before we touch the hardware
* Check flow_type formatting, and bail out before we touch the hardware
* if there's a configuration issue
*/
switch (l4type & IXGBE_ATR_L4TYPE_MASK) {
case IXGBE_ATR_L4TYPE_TCP:
fdircmd |= IXGBE_FDIRCMD_L4TYPE_TCP;
break;
case IXGBE_ATR_L4TYPE_UDP:
fdircmd |= IXGBE_FDIRCMD_L4TYPE_UDP;
break;
case IXGBE_ATR_L4TYPE_SCTP:
fdircmd |= IXGBE_FDIRCMD_L4TYPE_SCTP;
switch (input->formatted.flow_type) {
case IXGBE_ATR_FLOW_TYPE_IPV4:
/* use the L4 protocol mask for raw IPv4/IPv6 traffic */
fdirm |= IXGBE_FDIRM_L4P;
case IXGBE_ATR_FLOW_TYPE_SCTPV4:
if (input_masks->dst_port_mask || input_masks->src_port_mask) {
hw_dbg(hw, " Error on src/dst port mask\n");
return IXGBE_ERR_CONFIG;
}
case IXGBE_ATR_FLOW_TYPE_TCPV4:
case IXGBE_ATR_FLOW_TYPE_UDPV4:
break;
default:
hw_dbg(hw, "Error on l4type input\n");
hw_dbg(hw, " Error on flow type input\n");
return IXGBE_ERR_CONFIG;
}
bucket_hash = ixgbe_atr_compute_hash_82599(input,
IXGBE_ATR_BUCKET_HASH_KEY);
/* bucket_hash is only 15 bits */
bucket_hash &= IXGBE_ATR_HASH_MASK;
ixgbe_atr_get_vlan_id_82599(input, &vlan_id);
ixgbe_atr_get_src_port_82599(input, &src_port);
ixgbe_atr_get_dst_port_82599(input, &dst_port);
ixgbe_atr_get_flex_byte_82599(input, &flex_bytes);
fdirhash = soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT | bucket_hash;
/* Now figure out if we're IPv4 or IPv6 */
if (l4type & IXGBE_ATR_L4TYPE_IPV6_MASK) {
/* IPv6 */
ixgbe_atr_get_src_ipv6_82599(input, &src_ipv6_1, &src_ipv6_2,
&src_ipv6_3, &src_ipv6_4);
IXGBE_WRITE_REG(hw, IXGBE_FDIRSIPv6(0), src_ipv6_1);
IXGBE_WRITE_REG(hw, IXGBE_FDIRSIPv6(1), src_ipv6_2);
IXGBE_WRITE_REG(hw, IXGBE_FDIRSIPv6(2), src_ipv6_3);
/* The last 4 bytes is the same register as IPv4 */
IXGBE_WRITE_REG(hw, IXGBE_FDIRIPSA, src_ipv6_4);
fdircmd |= IXGBE_FDIRCMD_IPV6;
fdircmd |= IXGBE_FDIRCMD_IPv6DMATCH;
} else {
/* IPv4 */
ixgbe_atr_get_src_ipv4_82599(input, &src_ipv4);
IXGBE_WRITE_REG(hw, IXGBE_FDIRIPSA, src_ipv4);
}
ixgbe_atr_get_dst_ipv4_82599(input, &dst_ipv4);
IXGBE_WRITE_REG(hw, IXGBE_FDIRIPDA, dst_ipv4);
IXGBE_WRITE_REG(hw, IXGBE_FDIRVLAN, (vlan_id |
(flex_bytes << IXGBE_FDIRVLAN_FLEX_SHIFT)));
IXGBE_WRITE_REG(hw, IXGBE_FDIRPORT, (src_port |
(dst_port << IXGBE_FDIRPORT_DESTINATION_SHIFT)));
/*
* Program the relevant mask registers. L4type cannot be
* masked out in this implementation.
* Program the relevant mask registers. If src/dst_port or src/dst_addr
* are zero, then assume a full mask for that field. Also assume that
* a VLAN of 0 is unspecified, so mask that out as well. L4type
* cannot be masked out in this implementation.
*
* This also assumes IPv4 only. IPv6 masking isn't supported at this
* point in time.
*/
IXGBE_WRITE_REG(hw, IXGBE_FDIRSIP4M, input_masks->src_ip_mask);
IXGBE_WRITE_REG(hw, IXGBE_FDIRDIP4M, input_masks->dst_ip_mask);
switch (l4type & IXGBE_ATR_L4TYPE_MASK) {
case IXGBE_ATR_L4TYPE_TCP:
IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, input_masks->src_port_mask);
IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM,
(IXGBE_READ_REG(hw, IXGBE_FDIRTCPM) |
(input_masks->dst_port_mask << 16)));
/* Program FDIRM */
switch (ntohs(input_masks->vlan_id_mask) & 0xEFFF) {
case 0xEFFF:
/* Unmask VLAN ID - bit 0 and fall through to unmask prio */
fdirm &= ~IXGBE_FDIRM_VLANID;
case 0xE000:
/* Unmask VLAN prio - bit 1 */
fdirm &= ~IXGBE_FDIRM_VLANP;
break;
case IXGBE_ATR_L4TYPE_UDP:
IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, input_masks->src_port_mask);
IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM,
(IXGBE_READ_REG(hw, IXGBE_FDIRUDPM) |
(input_masks->src_port_mask << 16)));
case 0x0FFF:
/* Unmask VLAN ID - bit 0 */
fdirm &= ~IXGBE_FDIRM_VLANID;
break;
default:
/* this already would have failed above */
case 0x0000:
/* do nothing, vlans already masked */
break;
default:
hw_dbg(hw, " Error on VLAN mask\n");
return IXGBE_ERR_CONFIG;
}
/* Program the last mask register, FDIRM */
if (input_masks->vlan_id_mask)
/* Mask both VLAN and VLANP - bits 0 and 1 */
fdirm |= 0x3;
if (input_masks->data_mask)
/* Flex bytes need masking, so mask the whole thing - bit 4 */
fdirm |= 0x10;
if (input_masks->flex_mask & 0xFFFF) {
if ((input_masks->flex_mask & 0xFFFF) != 0xFFFF) {
hw_dbg(hw, " Error on flexible byte mask\n");
return IXGBE_ERR_CONFIG;
}
/* Unmask Flex Bytes - bit 4 */
fdirm &= ~IXGBE_FDIRM_FLEX;
}
/* Now mask VM pool and destination IPv6 - bits 5 and 2 */
fdirm |= 0x24;
IXGBE_WRITE_REG(hw, IXGBE_FDIRM, fdirm);
fdircmd |= IXGBE_FDIRCMD_CMD_ADD_FLOW;
fdircmd |= IXGBE_FDIRCMD_FILTER_UPDATE;
fdircmd |= IXGBE_FDIRCMD_LAST;
fdircmd |= IXGBE_FDIRCMD_QUEUE_EN;
fdircmd |= queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
/* store the TCP/UDP port masks, bit reversed from port layout */
fdirtcpm = ixgbe_get_fdirtcpm_82599(input_masks);
/* write both the same so that UDP and TCP use the same mask */
IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, ~fdirtcpm);
IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, ~fdirtcpm);
/* store source and destination IP masks (big-enian) */
IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIP4M,
~input_masks->src_ip_mask[0]);
IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRDIP4M,
~input_masks->dst_ip_mask[0]);
/* Apply masks to input data */
input->formatted.vlan_id &= input_masks->vlan_id_mask;
input->formatted.flex_bytes &= input_masks->flex_mask;
input->formatted.src_port &= input_masks->src_port_mask;
input->formatted.dst_port &= input_masks->dst_port_mask;
input->formatted.src_ip[0] &= input_masks->src_ip_mask[0];
input->formatted.dst_ip[0] &= input_masks->dst_ip_mask[0];
/* record vlan (little-endian) and flex_bytes(big-endian) */
fdirvlan =
IXGBE_STORE_AS_BE16(ntohs(input->formatted.flex_bytes));
fdirvlan <<= IXGBE_FDIRVLAN_FLEX_SHIFT;
fdirvlan |= ntohs(input->formatted.vlan_id);
IXGBE_WRITE_REG(hw, IXGBE_FDIRVLAN, fdirvlan);
/* record source and destination port (little-endian)*/
fdirport = ntohs(input->formatted.dst_port);
fdirport <<= IXGBE_FDIRPORT_DESTINATION_SHIFT;
fdirport |= ntohs(input->formatted.src_port);
IXGBE_WRITE_REG(hw, IXGBE_FDIRPORT, fdirport);
/* record the first 32 bits of the destination address (big-endian) */
IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPDA, input->formatted.dst_ip[0]);
/* record the source address (big-endian) */
IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPSA, input->formatted.src_ip[0]);
/* configure FDIRCMD register */
fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
fdircmd |= input->formatted.flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
/* we only want the bucket hash so drop the upper 16 bits */
fdirhash = ixgbe_atr_compute_hash_82599(input,
IXGBE_ATR_BUCKET_HASH_KEY);
fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, fdircmd);
return 0;
}
/**
* ixgbe_read_analog_reg8_82599 - Reads 8 bit Omer analog register
* @hw: pointer to hardware structure
......
......@@ -2277,10 +2277,11 @@ static int ixgbe_set_rx_ntuple(struct net_device *dev,
struct ethtool_rx_ntuple *cmd)
{
struct ixgbe_adapter *adapter = netdev_priv(dev);
struct ethtool_rx_ntuple_flow_spec fs = cmd->fs;
struct ethtool_rx_ntuple_flow_spec *fs = &cmd->fs;
union ixgbe_atr_input input_struct;
struct ixgbe_atr_input_masks input_masks;
int target_queue;
int err;
if (adapter->hw.mac.type == ixgbe_mac_82598EB)
return -EOPNOTSUPP;
......@@ -2289,67 +2290,122 @@ static int ixgbe_set_rx_ntuple(struct net_device *dev,
* Don't allow programming if the action is a queue greater than
* the number of online Tx queues.
*/
if ((fs.action >= adapter->num_tx_queues) ||
(fs.action < ETHTOOL_RXNTUPLE_ACTION_DROP))
if ((fs->action >= adapter->num_tx_queues) ||
(fs->action < ETHTOOL_RXNTUPLE_ACTION_DROP))
return -EINVAL;
memset(&input_struct, 0, sizeof(union ixgbe_atr_input));
memset(&input_masks, 0, sizeof(struct ixgbe_atr_input_masks));
input_masks.src_ip_mask = fs.m_u.tcp_ip4_spec.ip4src;
input_masks.dst_ip_mask = fs.m_u.tcp_ip4_spec.ip4dst;
input_masks.src_port_mask = fs.m_u.tcp_ip4_spec.psrc;
input_masks.dst_port_mask = fs.m_u.tcp_ip4_spec.pdst;
input_masks.vlan_id_mask = fs.vlan_tag_mask;
/* only use the lowest 2 bytes for flex bytes */
input_masks.data_mask = (fs.data_mask & 0xffff);
switch (fs.flow_type) {
/* record flow type */
switch (fs->flow_type) {
case IPV4_FLOW:
input_struct.formatted.flow_type = IXGBE_ATR_FLOW_TYPE_IPV4;
break;
case TCP_V4_FLOW:
ixgbe_atr_set_l4type_82599(&input_struct, IXGBE_ATR_L4TYPE_TCP);
input_struct.formatted.flow_type = IXGBE_ATR_FLOW_TYPE_TCPV4;
break;
case UDP_V4_FLOW:
ixgbe_atr_set_l4type_82599(&input_struct, IXGBE_ATR_L4TYPE_UDP);
input_struct.formatted.flow_type = IXGBE_ATR_FLOW_TYPE_UDPV4;
break;
case SCTP_V4_FLOW:
ixgbe_atr_set_l4type_82599(&input_struct, IXGBE_ATR_L4TYPE_SCTP);
input_struct.formatted.flow_type = IXGBE_ATR_FLOW_TYPE_SCTPV4;
break;
default:
return -1;
}
/* Mask bits from the inputs based on user-supplied mask */
ixgbe_atr_set_src_ipv4_82599(&input_struct,
(fs.h_u.tcp_ip4_spec.ip4src & ~fs.m_u.tcp_ip4_spec.ip4src));
ixgbe_atr_set_dst_ipv4_82599(&input_struct,
(fs.h_u.tcp_ip4_spec.ip4dst & ~fs.m_u.tcp_ip4_spec.ip4dst));
/* 82599 expects these to be byte-swapped for perfect filtering */
ixgbe_atr_set_src_port_82599(&input_struct,
((ntohs(fs.h_u.tcp_ip4_spec.psrc)) & ~fs.m_u.tcp_ip4_spec.psrc));
ixgbe_atr_set_dst_port_82599(&input_struct,
((ntohs(fs.h_u.tcp_ip4_spec.pdst)) & ~fs.m_u.tcp_ip4_spec.pdst));
/* VLAN and Flex bytes are either completely masked or not */
if (!fs.vlan_tag_mask)
ixgbe_atr_set_vlan_id_82599(&input_struct, fs.vlan_tag);
if (!input_masks.data_mask)
/* make sure we only use the first 2 bytes of user data */
ixgbe_atr_set_flex_byte_82599(&input_struct,
(fs.data & 0xffff));
/* copy vlan tag minus the CFI bit */
if ((fs->vlan_tag & 0xEFFF) || (~fs->vlan_tag_mask & 0xEFFF)) {
input_struct.formatted.vlan_id = htons(fs->vlan_tag & 0xEFFF);
if (!fs->vlan_tag_mask) {
input_masks.vlan_id_mask = htons(0xEFFF);
} else {
switch (~fs->vlan_tag_mask & 0xEFFF) {
/* all of these are valid vlan-mask values */
case 0xEFFF:
case 0xE000:
case 0x0FFF:
case 0x0000:
input_masks.vlan_id_mask =
htons(~fs->vlan_tag_mask);
break;
/* exit with error if vlan-mask is invalid */
default:
e_err(drv, "Partial VLAN ID or "
"priority mask in vlan-mask is not "
"supported by hardware\n");