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iwlwifi: mvm: add L-SIG length to radiotap

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We may have the L-SIG length depending on the phy_data info type;
add it to radiotap when we do.

Move getting the phy_data out one layer up and the info type into
it so we can use this data more generically. We need to call the
iwl_mvm_rx_he() function for other reasons as well, so can't just
combine all of that into something like iwl_mvm_parse_phy_data().

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Shaul Triebitz 2018-07-02 17:16:48 +02:00 • committed by Luca Coelho
parent bdf180c8d3
commit 6721039d5b
1 changed files with 60 additions and 36 deletions
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96
drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
View file

@ -864,6 +864,7 @@ static void iwl_mvm_flip_address(u8 *addr)
} }
struct iwl_mvm_rx_phy_data { struct iwl_mvm_rx_phy_data {
enum iwl_rx_phy_info_type info_type;
__le32 d0, d1, d2, d3; __le32 d0, d1, d2, d3;
__le16 d4; __le16 d4;
}; };
@ -999,19 +1000,13 @@ static void iwl_mvm_decode_he_phy_data(struct iwl_mvm *mvm,
struct ieee80211_rx_status *rx_status, struct ieee80211_rx_status *rx_status,
u32 rate_n_flags, int queue) u32 rate_n_flags, int queue)
{ {
enum iwl_rx_phy_info_type info_type; switch (phy_data->info_type) {
info_type = le32_get_bits(phy_data->d1, IWL_RX_PHY_DATA1_INFO_TYPE_MASK);
switch (info_type) {
case IWL_RX_PHY_INFO_TYPE_NONE: case IWL_RX_PHY_INFO_TYPE_NONE:
case IWL_RX_PHY_INFO_TYPE_CCK: case IWL_RX_PHY_INFO_TYPE_CCK:
case IWL_RX_PHY_INFO_TYPE_OFDM_LGCY: case IWL_RX_PHY_INFO_TYPE_OFDM_LGCY:
return;
case IWL_RX_PHY_INFO_TYPE_HT: case IWL_RX_PHY_INFO_TYPE_HT:
case IWL_RX_PHY_INFO_TYPE_VHT_SU: case IWL_RX_PHY_INFO_TYPE_VHT_SU:
case IWL_RX_PHY_INFO_TYPE_VHT_MU: case IWL_RX_PHY_INFO_TYPE_VHT_MU:
/* TODO: we have LSIG-LEN, where do we put it? */
return; return;
case IWL_RX_PHY_INFO_TYPE_HE_TB_EXT: case IWL_RX_PHY_INFO_TYPE_HE_TB_EXT:
he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE_KNOWN | he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE_KNOWN |
@ -1075,7 +1070,7 @@ static void iwl_mvm_decode_he_phy_data(struct iwl_mvm *mvm,
break; break;
} }
switch (info_type) { switch (phy_data->info_type) {
case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT: case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT:
he_mu->flags1 |= he_mu->flags1 |=
le16_encode_bits(le16_get_bits(phy_data->d4, le16_encode_bits(le16_get_bits(phy_data->d4,
@ -1119,7 +1114,7 @@ static void iwl_mvm_decode_he_phy_data(struct iwl_mvm *mvm,
} }
static void iwl_mvm_rx_he(struct iwl_mvm *mvm, struct sk_buff *skb, static void iwl_mvm_rx_he(struct iwl_mvm *mvm, struct sk_buff *skb,
struct iwl_rx_mpdu_desc *desc, struct iwl_mvm_rx_phy_data *phy_data,
u32 rate_n_flags, u16 phy_info, int queue) u32 rate_n_flags, u16 phy_info, int queue)
{ {
struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb); struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);
@ -1144,33 +1139,13 @@ static void iwl_mvm_rx_he(struct iwl_mvm *mvm, struct sk_buff *skb,
IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW_KNOWN), IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW_KNOWN),
}; };
unsigned int radiotap_len = 0; unsigned int radiotap_len = 0;
struct iwl_mvm_rx_phy_data phy_data = {
.d4 = desc->phy_data4,
};
enum iwl_rx_phy_info_type info_type = IWL_RX_PHY_INFO_TYPE_NONE;
if (mvm->trans->cfg->device_family >= IWL_DEVICE_FAMILY_22560) {
phy_data.d0 = desc->v3.phy_data0;
phy_data.d1 = desc->v3.phy_data1;
phy_data.d2 = desc->v3.phy_data2;
phy_data.d3 = desc->v3.phy_data3;
} else {
phy_data.d0 = desc->v1.phy_data0;
phy_data.d1 = desc->v1.phy_data1;
phy_data.d2 = desc->v1.phy_data2;
phy_data.d3 = desc->v1.phy_data3;
}
if (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD)
info_type = le32_get_bits(phy_data.d1,
IWL_RX_PHY_DATA1_INFO_TYPE_MASK);
he = skb_put_data(skb, &known, sizeof(known)); he = skb_put_data(skb, &known, sizeof(known));
radiotap_len += sizeof(known); radiotap_len += sizeof(known);
rx_status->flag |= RX_FLAG_RADIOTAP_HE; rx_status->flag |= RX_FLAG_RADIOTAP_HE;
if (info_type == IWL_RX_PHY_INFO_TYPE_HE_MU || if (phy_data->info_type == IWL_RX_PHY_INFO_TYPE_HE_MU ||
info_type == IWL_RX_PHY_INFO_TYPE_HE_MU_EXT) { phy_data->info_type == IWL_RX_PHY_INFO_TYPE_HE_MU_EXT) {
he_mu = skb_put_data(skb, &mu_known, sizeof(mu_known)); he_mu = skb_put_data(skb, &mu_known, sizeof(mu_known));
radiotap_len += sizeof(mu_known); radiotap_len += sizeof(mu_known);
rx_status->flag |= RX_FLAG_RADIOTAP_HE_MU; rx_status->flag |= RX_FLAG_RADIOTAP_HE_MU;
@ -1179,18 +1154,18 @@ static void iwl_mvm_rx_he(struct iwl_mvm *mvm, struct sk_buff *skb,
/* temporarily hide the radiotap data */ /* temporarily hide the radiotap data */
__skb_pull(skb, radiotap_len); __skb_pull(skb, radiotap_len);
if (info_type == IWL_RX_PHY_INFO_TYPE_HE_SU) { if (phy_data->info_type == IWL_RX_PHY_INFO_TYPE_HE_SU) {
/* report the AMPDU-EOF bit on single frames */ /* report the AMPDU-EOF bit on single frames */
if (!queue && !(phy_info & IWL_RX_MPDU_PHY_AMPDU)) { if (!queue && !(phy_info & IWL_RX_MPDU_PHY_AMPDU)) {
rx_status->flag |= RX_FLAG_AMPDU_DETAILS; rx_status->flag |= RX_FLAG_AMPDU_DETAILS;
rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN; rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN;
if (phy_data.d0 & cpu_to_le32(IWL_RX_PHY_DATA0_HE_DELIM_EOF)) if (phy_data->d0 & cpu_to_le32(IWL_RX_PHY_DATA0_HE_DELIM_EOF))
rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT; rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT;
} }
} }
if (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD) if (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD)
iwl_mvm_decode_he_phy_data(mvm, &phy_data, he, he_mu, rx_status, iwl_mvm_decode_he_phy_data(mvm, phy_data, he, he_mu, rx_status,
rate_n_flags, queue); rate_n_flags, queue);
/* update aggregation data for monitor sake on default queue */ /* update aggregation data for monitor sake on default queue */
@ -1203,7 +1178,7 @@ static void iwl_mvm_rx_he(struct iwl_mvm *mvm, struct sk_buff *skb,
(he_type == RATE_MCS_HE_TYPE_MU || (he_type == RATE_MCS_HE_TYPE_MU ||
he_type == RATE_MCS_HE_TYPE_SU)) { he_type == RATE_MCS_HE_TYPE_SU)) {
rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN; rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN;
if (phy_data.d0 & cpu_to_le32(IWL_RX_PHY_DATA0_HE_DELIM_EOF)) if (phy_data->d0 & cpu_to_le32(IWL_RX_PHY_DATA0_HE_DELIM_EOF))
rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT; rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT;
} }
} }
@ -1290,6 +1265,33 @@ static void iwl_mvm_rx_he(struct iwl_mvm *mvm, struct sk_buff *skb,
IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE); IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE);
} }
static void iwl_mvm_decode_lsig(struct sk_buff *skb,
struct iwl_mvm_rx_phy_data *phy_data)
{
struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);
struct ieee80211_radiotap_lsig *lsig;
switch (phy_data->info_type) {
case IWL_RX_PHY_INFO_TYPE_HT:
case IWL_RX_PHY_INFO_TYPE_VHT_SU:
case IWL_RX_PHY_INFO_TYPE_VHT_MU:
case IWL_RX_PHY_INFO_TYPE_HE_TB_EXT:
case IWL_RX_PHY_INFO_TYPE_HE_SU:
case IWL_RX_PHY_INFO_TYPE_HE_MU:
case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT:
case IWL_RX_PHY_INFO_TYPE_HE_TB:
lsig = skb_put(skb, sizeof(*lsig));
lsig->data1 = cpu_to_le16(IEEE80211_RADIOTAP_LSIG_DATA1_LENGTH_KNOWN);
lsig->data2 = le16_encode_bits(le32_get_bits(phy_data->d1,
IWL_RX_PHY_DATA1_LSIG_LEN_MASK),
IEEE80211_RADIOTAP_LSIG_DATA2_LENGTH);
rx_status->flag |= RX_FLAG_RADIOTAP_LSIG;
break;
default:
break;
}
}
void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi, void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
struct iwl_rx_cmd_buffer *rxb, int queue) struct iwl_rx_cmd_buffer *rxb, int queue)
{ {
@ -1304,6 +1306,10 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
struct sk_buff *skb; struct sk_buff *skb;
u8 crypt_len = 0, channel, energy_a, energy_b; u8 crypt_len = 0, channel, energy_a, energy_b;
size_t desc_size; size_t desc_size;
struct iwl_mvm_rx_phy_data phy_data = {
.d4 = desc->phy_data4,
.info_type = IWL_RX_PHY_INFO_TYPE_NONE,
};
if (unlikely(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))) if (unlikely(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)))
return; return;
@ -1315,6 +1321,11 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
energy_a = desc->v3.energy_a; energy_a = desc->v3.energy_a;
energy_b = desc->v3.energy_b; energy_b = desc->v3.energy_b;
desc_size = sizeof(*desc); desc_size = sizeof(*desc);
phy_data.d0 = desc->v3.phy_data0;
phy_data.d1 = desc->v3.phy_data1;
phy_data.d2 = desc->v3.phy_data2;
phy_data.d3 = desc->v3.phy_data3;
} else { } else {
rate_n_flags = le32_to_cpu(desc->v1.rate_n_flags); rate_n_flags = le32_to_cpu(desc->v1.rate_n_flags);
channel = desc->v1.channel; channel = desc->v1.channel;
@ -1322,8 +1333,18 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
energy_a = desc->v1.energy_a; energy_a = desc->v1.energy_a;
energy_b = desc->v1.energy_b; energy_b = desc->v1.energy_b;
desc_size = IWL_RX_DESC_SIZE_V1; desc_size = IWL_RX_DESC_SIZE_V1;
phy_data.d0 = desc->v1.phy_data0;
phy_data.d1 = desc->v1.phy_data1;
phy_data.d2 = desc->v1.phy_data2;
phy_data.d3 = desc->v1.phy_data3;
} }
if (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD)
phy_data.info_type =
le32_get_bits(phy_data.d1,
IWL_RX_PHY_DATA1_INFO_TYPE_MASK);
hdr = (void *)(pkt->data + desc_size); hdr = (void *)(pkt->data + desc_size);
/* Dont use dev_alloc_skb(), we'll have enough headroom once /* Dont use dev_alloc_skb(), we'll have enough headroom once
* ieee80211_hdr pulled. * ieee80211_hdr pulled.
@ -1362,7 +1383,10 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
} }
if (rate_n_flags & RATE_MCS_HE_MSK) if (rate_n_flags & RATE_MCS_HE_MSK)
iwl_mvm_rx_he(mvm, skb, desc, rate_n_flags, phy_info, queue); iwl_mvm_rx_he(mvm, skb, &phy_data, rate_n_flags,
phy_info, queue);
iwl_mvm_decode_lsig(skb, &phy_data);
rx_status = IEEE80211_SKB_RXCB(skb); rx_status = IEEE80211_SKB_RXCB(skb);