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iwlwifi: mvm: support six IPv6 addresses in D3 

Newer firmware supports offloading more IPv6 addresses for NDP,
adjust the code to send the correct command depending on the
firmware capability.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2013-07-08 11:17:06 +02:00
parent 88f2fd7300
commit 5369d6c167
4 changed files with 94 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/wireless/iwlwifi/iwl-fw.h
View File

@ -76,6 +76,8 @@
* @IWL_UCODE_TLV_FLAGS_DW_BC_TABLE: The SCD byte count table is in DWORDS
* @IWL_UCODE_TLV_FLAGS_UAPSD: This uCode image supports uAPSD
* @IWL_UCODE_TLV_FLAGS_RX_ENERGY_API: supports rx signal strength api
* @IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS: D3 image supports up to six
* (rather than two) IPv6 addresses
*/
enum iwl_ucode_tlv_flag {
IWL_UCODE_TLV_FLAGS_PAN = BIT(0),
@ -85,6 +87,7 @@ enum iwl_ucode_tlv_flag {
IWL_UCODE_TLV_FLAGS_DW_BC_TABLE = BIT(4),
IWL_UCODE_TLV_FLAGS_UAPSD = BIT(6),
IWL_UCODE_TLV_FLAGS_RX_ENERGY_API = BIT(8),
IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS = BIT(10),
};
/* The default calibrate table size if not specified by firmware file */

70
drivers/net/wireless/iwlwifi/mvm/d3.c
View File

@ -105,7 +105,7 @@ void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw,
list_for_each_entry(ifa, &idev->addr_list, if_list) {
mvmvif->target_ipv6_addrs[idx] = ifa->addr;
idx++;
if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS)
if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX)
break;
}
read_unlock_bh(&idev->lock);
@ -373,36 +373,68 @@ static int iwl_mvm_send_patterns(struct iwl_mvm *mvm,
static int iwl_mvm_send_proto_offload(struct iwl_mvm *mvm,
struct ieee80211_vif *vif)
{
struct iwl_proto_offload_cmd cmd = {};
union {
struct iwl_proto_offload_cmd_v1 v1;
struct iwl_proto_offload_cmd_v2 v2;
} cmd = {};
struct iwl_proto_offload_cmd_common *common;
u32 enabled = 0, size;
#if IS_ENABLED(CONFIG_IPV6)
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
int i;
if (mvmvif->num_target_ipv6_addrs) {
cmd.enabled |= cpu_to_le32(IWL_D3_PROTO_OFFLOAD_NS);
memcpy(cmd.ndp_mac_addr, vif->addr, ETH_ALEN);
if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS) {
if (mvmvif->num_target_ipv6_addrs) {
enabled |= IWL_D3_PROTO_OFFLOAD_NS;
memcpy(cmd.v2.ndp_mac_addr, vif->addr, ETH_ALEN);
}
BUILD_BUG_ON(sizeof(cmd.v2.target_ipv6_addr[0]) !=
sizeof(mvmvif->target_ipv6_addrs[0]));
for (i = 0; i < min(mvmvif->num_target_ipv6_addrs,
IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V2); i++)
memcpy(cmd.v2.target_ipv6_addr[i],
&mvmvif->target_ipv6_addrs[i],
sizeof(cmd.v2.target_ipv6_addr[i]));
} else {
if (mvmvif->num_target_ipv6_addrs) {
enabled |= IWL_D3_PROTO_OFFLOAD_NS;
memcpy(cmd.v1.ndp_mac_addr, vif->addr, ETH_ALEN);
}
BUILD_BUG_ON(sizeof(cmd.v1.target_ipv6_addr[0]) !=
sizeof(mvmvif->target_ipv6_addrs[0]));
for (i = 0; i < min(mvmvif->num_target_ipv6_addrs,
IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V1); i++)
memcpy(cmd.v1.target_ipv6_addr[i],
&mvmvif->target_ipv6_addrs[i],
sizeof(cmd.v1.target_ipv6_addr[i]));
}
BUILD_BUG_ON(sizeof(cmd.target_ipv6_addr[i]) !=
sizeof(mvmvif->target_ipv6_addrs[i]));
for (i = 0; i < mvmvif->num_target_ipv6_addrs; i++)
memcpy(cmd.target_ipv6_addr[i],
&mvmvif->target_ipv6_addrs[i],
sizeof(cmd.target_ipv6_addr[i]));
#endif
if (vif->bss_conf.arp_addr_cnt) {
cmd.enabled |= cpu_to_le32(IWL_D3_PROTO_OFFLOAD_ARP);
cmd.host_ipv4_addr = vif->bss_conf.arp_addr_list[0];
memcpy(cmd.arp_mac_addr, vif->addr, ETH_ALEN);
if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS) {
common = &cmd.v2.common;
size = sizeof(cmd.v2);
} else {
common = &cmd.v1.common;
size = sizeof(cmd.v1);
}
if (!cmd.enabled)
if (vif->bss_conf.arp_addr_cnt) {
enabled |= IWL_D3_PROTO_OFFLOAD_ARP;
common->host_ipv4_addr = vif->bss_conf.arp_addr_list[0];
memcpy(common->arp_mac_addr, vif->addr, ETH_ALEN);
}
if (!enabled)
return 0;
common->enabled = cpu_to_le32(enabled);
return iwl_mvm_send_cmd_pdu(mvm, PROT_OFFLOAD_CONFIG_CMD, CMD_SYNC,
sizeof(cmd), &cmd);
size, &cmd);
}
enum iwl_mvm_tcp_packet_type {

49
drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h
View File

@ -98,34 +98,63 @@ enum iwl_proto_offloads {
IWL_D3_PROTO_OFFLOAD_NS = BIT(1),
};
#define IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS 2
#define IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V1 2
#define IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V2 6
#define IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX 6
/**
* struct iwl_proto_offload_cmd - ARP/NS offload configuration
* struct iwl_proto_offload_cmd_common - ARP/NS offload common part
* @enabled: enable flags
* @remote_ipv4_addr: remote address to answer to (or zero if all)
* @host_ipv4_addr: our IPv4 address to respond to queries for
* @arp_mac_addr: our MAC address for ARP responses
* @reserved: unused
*/
struct iwl_proto_offload_cmd_common {
__le32 enabled;
__be32 remote_ipv4_addr;
__be32 host_ipv4_addr;
u8 arp_mac_addr[ETH_ALEN];
__le16 reserved;
} __packed;
/**
* struct iwl_proto_offload_cmd_v1 - ARP/NS offload configuration
* @common: common/IPv4 configuration
* @remote_ipv6_addr: remote address to answer to (or zero if all)
* @solicited_node_ipv6_addr: broken -- solicited node address exists
* for each target address
* @target_ipv6_addr: our target addresses
* @ndp_mac_addr: neighbor soliciation response MAC address
*/
struct iwl_proto_offload_cmd {
__le32 enabled;
__be32 remote_ipv4_addr;
__be32 host_ipv4_addr;
u8 arp_mac_addr[ETH_ALEN];
__le16 reserved1;
struct iwl_proto_offload_cmd_v1 {
struct iwl_proto_offload_cmd_common common;
u8 remote_ipv6_addr[16];
u8 solicited_node_ipv6_addr[16];
u8 target_ipv6_addr[IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS][16];
u8 target_ipv6_addr[IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V1][16];
u8 ndp_mac_addr[ETH_ALEN];
__le16 reserved2;
} __packed; /* PROT_OFFLOAD_CONFIG_CMD_DB_S_VER_1 */
/**
* struct iwl_proto_offload_cmd_v2 - ARP/NS offload configuration
* @common: common/IPv4 configuration
* @remote_ipv6_addr: remote address to answer to (or zero if all)
* @solicited_node_ipv6_addr: broken -- solicited node address exists
* for each target address
* @target_ipv6_addr: our target addresses
* @ndp_mac_addr: neighbor soliciation response MAC address
*/
struct iwl_proto_offload_cmd_v2 {
struct iwl_proto_offload_cmd_common common;
u8 remote_ipv6_addr[16];
u8 solicited_node_ipv6_addr[16];
u8 target_ipv6_addr[IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V2][16];
u8 ndp_mac_addr[ETH_ALEN];
u8 numValidIPv6Addresses;
u8 reserved2[3];
} __packed; /* PROT_OFFLOAD_CONFIG_CMD_DB_S_VER_2 */
/*
* WOWLAN_PATTERNS

2
drivers/net/wireless/iwlwifi/mvm/mvm.h
View File

@ -282,7 +282,7 @@ struct iwl_mvm_vif {
#if IS_ENABLED(CONFIG_IPV6)
/* IPv6 addresses for WoWLAN */
struct in6_addr target_ipv6_addrs[IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS];
struct in6_addr target_ipv6_addrs[IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX];
int num_target_ipv6_addrs;
#endif
#endif