ath10k: deduplicate wmi service ready logic
[cascardo/linux.git] / drivers / net / wireless / ath / ath10k / wmi.c
index cec0c28..a7c11b2 100644 (file)
@@ -2205,30 +2205,113 @@ static int ath10k_wmi_alloc_host_mem(struct ath10k *ar, u32 req_id,
        return 0;
 }
 
+static int ath10k_wmi_main_pull_svc_rdy_ev(struct sk_buff *skb,
+                                          struct wmi_svc_rdy_ev_arg *arg)
+{
+       struct wmi_service_ready_event *ev;
+       size_t i, n;
+
+       if (skb->len < sizeof(*ev))
+               return -EPROTO;
+
+       ev = (void *)skb->data;
+       skb_pull(skb, sizeof(*ev));
+       arg->min_tx_power = ev->hw_min_tx_power;
+       arg->max_tx_power = ev->hw_max_tx_power;
+       arg->ht_cap = ev->ht_cap_info;
+       arg->vht_cap = ev->vht_cap_info;
+       arg->sw_ver0 = ev->sw_version;
+       arg->sw_ver1 = ev->sw_version_1;
+       arg->phy_capab = ev->phy_capability;
+       arg->num_rf_chains = ev->num_rf_chains;
+       arg->eeprom_rd = ev->hal_reg_capabilities.eeprom_rd;
+       arg->num_mem_reqs = ev->num_mem_reqs;
+       arg->service_map = ev->wmi_service_bitmap;
+
+       n = min_t(size_t, __le32_to_cpu(arg->num_mem_reqs),
+                 ARRAY_SIZE(arg->mem_reqs));
+       for (i = 0; i < n; i++)
+               arg->mem_reqs[i] = &ev->mem_reqs[i];
+
+       if (skb->len <
+           __le32_to_cpu(arg->num_mem_reqs) * sizeof(arg->mem_reqs[0]))
+               return -EPROTO;
+
+       return 0;
+}
+
+static int ath10k_wmi_10x_pull_svc_rdy_ev(struct sk_buff *skb,
+                                         struct wmi_svc_rdy_ev_arg *arg)
+{
+       struct wmi_10x_service_ready_event *ev;
+       int i, n;
+
+       if (skb->len < sizeof(*ev))
+               return -EPROTO;
+
+       ev = (void *)skb->data;
+       skb_pull(skb, sizeof(*ev));
+       arg->min_tx_power = ev->hw_min_tx_power;
+       arg->max_tx_power = ev->hw_max_tx_power;
+       arg->ht_cap = ev->ht_cap_info;
+       arg->vht_cap = ev->vht_cap_info;
+       arg->sw_ver0 = ev->sw_version;
+       arg->phy_capab = ev->phy_capability;
+       arg->num_rf_chains = ev->num_rf_chains;
+       arg->eeprom_rd = ev->hal_reg_capabilities.eeprom_rd;
+       arg->num_mem_reqs = ev->num_mem_reqs;
+       arg->service_map = ev->wmi_service_bitmap;
+
+       n = min_t(size_t, __le32_to_cpu(arg->num_mem_reqs),
+                 ARRAY_SIZE(arg->mem_reqs));
+       for (i = 0; i < n; i++)
+               arg->mem_reqs[i] = &ev->mem_reqs[i];
+
+       if (skb->len <
+           __le32_to_cpu(arg->num_mem_reqs) * sizeof(arg->mem_reqs[0]))
+               return -EPROTO;
+
+       return 0;
+}
+
 static void ath10k_wmi_service_ready_event_rx(struct ath10k *ar,
                                              struct sk_buff *skb)
 {
-       struct wmi_service_ready_event *ev = (void *)skb->data;
+       struct wmi_svc_rdy_ev_arg arg = {};
+       u32 num_units, req_id, unit_size, num_mem_reqs, num_unit_info, i;
        DECLARE_BITMAP(svc_bmap, WMI_SERVICE_MAX) = {};
+       int ret;
 
-       if (skb->len < sizeof(*ev)) {
-               ath10k_warn(ar, "Service ready event was %d B but expected %zu B. Wrong firmware version?\n",
-                           skb->len, sizeof(*ev));
+       if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features)) {
+               ret = ath10k_wmi_10x_pull_svc_rdy_ev(skb, &arg);
+               wmi_10x_svc_map(arg.service_map, svc_bmap);
+       } else {
+               ret = ath10k_wmi_main_pull_svc_rdy_ev(skb, &arg);
+               wmi_main_svc_map(arg.service_map, svc_bmap);
+       }
+
+       if (ret) {
+               ath10k_warn(ar, "failed to parse service ready: %d\n", ret);
                return;
        }
 
-       ar->hw_min_tx_power = __le32_to_cpu(ev->hw_min_tx_power);
-       ar->hw_max_tx_power = __le32_to_cpu(ev->hw_max_tx_power);
-       ar->ht_cap_info = __le32_to_cpu(ev->ht_cap_info);
-       ar->vht_cap_info = __le32_to_cpu(ev->vht_cap_info);
+       ar->hw_min_tx_power = __le32_to_cpu(arg.min_tx_power);
+       ar->hw_max_tx_power = __le32_to_cpu(arg.max_tx_power);
+       ar->ht_cap_info = __le32_to_cpu(arg.ht_cap);
+       ar->vht_cap_info = __le32_to_cpu(arg.vht_cap);
        ar->fw_version_major =
-               (__le32_to_cpu(ev->sw_version) & 0xff000000) >> 24;
-       ar->fw_version_minor = (__le32_to_cpu(ev->sw_version) & 0x00ffffff);
+               (__le32_to_cpu(arg.sw_ver0) & 0xff000000) >> 24;
+       ar->fw_version_minor = (__le32_to_cpu(arg.sw_ver0) & 0x00ffffff);
        ar->fw_version_release =
-               (__le32_to_cpu(ev->sw_version_1) & 0xffff0000) >> 16;
-       ar->fw_version_build = (__le32_to_cpu(ev->sw_version_1) & 0x0000ffff);
-       ar->phy_capability = __le32_to_cpu(ev->phy_capability);
-       ar->num_rf_chains = __le32_to_cpu(ev->num_rf_chains);
+               (__le32_to_cpu(arg.sw_ver1) & 0xffff0000) >> 16;
+       ar->fw_version_build = (__le32_to_cpu(arg.sw_ver1) & 0x0000ffff);
+       ar->phy_capability = __le32_to_cpu(arg.phy_capab);
+       ar->num_rf_chains = __le32_to_cpu(arg.num_rf_chains);
+       ar->ath_common.regulatory.current_rd = __le32_to_cpu(arg.eeprom_rd);
+
+       ath10k_debug_read_service_map(ar, svc_bmap, sizeof(svc_bmap));
+       ath10k_dbg_dump(ar, ATH10K_DBG_WMI, NULL, "wmi svc: ",
+                       arg.service_map, sizeof(arg.service_map));
 
        /* only manually set fw features when not using FW IE format */
        if (ar->fw_api == 1 && ar->fw_version_build > 636)
@@ -2243,14 +2326,6 @@ static void ath10k_wmi_service_ready_event_rx(struct ath10k *ar,
        ar->supp_tx_chainmask = (1 << ar->num_rf_chains) - 1;
        ar->supp_rx_chainmask = (1 << ar->num_rf_chains) - 1;
 
-       ar->ath_common.regulatory.current_rd =
-               __le32_to_cpu(ev->hal_reg_capabilities.eeprom_rd);
-
-       wmi_main_svc_map(ev->wmi_service_bitmap, svc_bmap);
-       ath10k_debug_read_service_map(ar, svc_bmap, sizeof(svc_bmap));
-       ath10k_dbg_dump(ar, ATH10K_DBG_WMI, NULL, "wmi svc: ",
-                       ev->wmi_service_bitmap, sizeof(ev->wmi_service_bitmap));
-
        if (strlen(ar->hw->wiphy->fw_version) == 0) {
                snprintf(ar->hw->wiphy->fw_version,
                         sizeof(ar->hw->wiphy->fw_version),
@@ -2261,96 +2336,18 @@ static void ath10k_wmi_service_ready_event_rx(struct ath10k *ar,
                         ar->fw_version_build);
        }
 
-       /* FIXME: it probably should be better to support this */
-       if (__le32_to_cpu(ev->num_mem_reqs) > 0) {
-               ath10k_warn(ar, "target requested %d memory chunks; ignoring\n",
-                           __le32_to_cpu(ev->num_mem_reqs));
-       }
-
-       ath10k_dbg(ar, ATH10K_DBG_WMI,
-                  "wmi event service ready sw_ver 0x%08x sw_ver1 0x%08x abi_ver %u phy_cap 0x%08x ht_cap 0x%08x vht_cap 0x%08x vht_supp_msc 0x%08x sys_cap_info 0x%08x mem_reqs %u num_rf_chains %u\n",
-                  __le32_to_cpu(ev->sw_version),
-                  __le32_to_cpu(ev->sw_version_1),
-                  __le32_to_cpu(ev->abi_version),
-                  __le32_to_cpu(ev->phy_capability),
-                  __le32_to_cpu(ev->ht_cap_info),
-                  __le32_to_cpu(ev->vht_cap_info),
-                  __le32_to_cpu(ev->vht_supp_mcs),
-                  __le32_to_cpu(ev->sys_cap_info),
-                  __le32_to_cpu(ev->num_mem_reqs),
-                  __le32_to_cpu(ev->num_rf_chains));
-
-       complete(&ar->wmi.service_ready);
-}
-
-static void ath10k_wmi_10x_service_ready_event_rx(struct ath10k *ar,
-                                                 struct sk_buff *skb)
-{
-       u32 num_units, req_id, unit_size, num_mem_reqs, num_unit_info, i;
-       int ret;
-       struct wmi_service_ready_event_10x *ev = (void *)skb->data;
-       DECLARE_BITMAP(svc_bmap, WMI_SERVICE_MAX) = {};
-
-       if (skb->len < sizeof(*ev)) {
-               ath10k_warn(ar, "Service ready event was %d B but expected %zu B. Wrong firmware version?\n",
-                           skb->len, sizeof(*ev));
-               return;
-       }
-
-       ar->hw_min_tx_power = __le32_to_cpu(ev->hw_min_tx_power);
-       ar->hw_max_tx_power = __le32_to_cpu(ev->hw_max_tx_power);
-       ar->ht_cap_info = __le32_to_cpu(ev->ht_cap_info);
-       ar->vht_cap_info = __le32_to_cpu(ev->vht_cap_info);
-       ar->fw_version_major =
-               (__le32_to_cpu(ev->sw_version) & 0xff000000) >> 24;
-       ar->fw_version_minor = (__le32_to_cpu(ev->sw_version) & 0x00ffffff);
-       ar->phy_capability = __le32_to_cpu(ev->phy_capability);
-       ar->num_rf_chains = __le32_to_cpu(ev->num_rf_chains);
-
-       if (ar->num_rf_chains > WMI_MAX_SPATIAL_STREAM) {
-               ath10k_warn(ar, "hardware advertises support for more spatial streams than it should (%d > %d)\n",
-                           ar->num_rf_chains, WMI_MAX_SPATIAL_STREAM);
-               ar->num_rf_chains = WMI_MAX_SPATIAL_STREAM;
-       }
-
-       ar->supp_tx_chainmask = (1 << ar->num_rf_chains) - 1;
-       ar->supp_rx_chainmask = (1 << ar->num_rf_chains) - 1;
-
-       ar->ath_common.regulatory.current_rd =
-               __le32_to_cpu(ev->hal_reg_capabilities.eeprom_rd);
-
-       wmi_10x_svc_map(ev->wmi_service_bitmap, svc_bmap);
-       ath10k_debug_read_service_map(ar, svc_bmap, sizeof(svc_bmap));
-       ath10k_dbg_dump(ar, ATH10K_DBG_WMI, NULL, "wmi svc: ",
-                       ev->wmi_service_bitmap, sizeof(ev->wmi_service_bitmap));
-
-       if (strlen(ar->hw->wiphy->fw_version) == 0) {
-               snprintf(ar->hw->wiphy->fw_version,
-                        sizeof(ar->hw->wiphy->fw_version),
-                        "%u.%u",
-                        ar->fw_version_major,
-                        ar->fw_version_minor);
-       }
-
-       num_mem_reqs = __le32_to_cpu(ev->num_mem_reqs);
-
-       if (num_mem_reqs > ATH10K_MAX_MEM_REQS) {
+       num_mem_reqs = __le32_to_cpu(arg.num_mem_reqs);
+       if (num_mem_reqs > WMI_MAX_MEM_REQS) {
                ath10k_warn(ar, "requested memory chunks number (%d) exceeds the limit\n",
                            num_mem_reqs);
                return;
        }
 
-       if (!num_mem_reqs)
-               goto exit;
-
-       ath10k_dbg(ar, ATH10K_DBG_WMI, "firmware has requested %d memory chunks\n",
-                  num_mem_reqs);
-
        for (i = 0; i < num_mem_reqs; ++i) {
-               req_id = __le32_to_cpu(ev->mem_reqs[i].req_id);
-               num_units = __le32_to_cpu(ev->mem_reqs[i].num_units);
-               unit_size = __le32_to_cpu(ev->mem_reqs[i].unit_size);
-               num_unit_info = __le32_to_cpu(ev->mem_reqs[i].num_unit_info);
+               req_id = __le32_to_cpu(arg.mem_reqs[i]->req_id);
+               num_units = __le32_to_cpu(arg.mem_reqs[i]->num_units);
+               unit_size = __le32_to_cpu(arg.mem_reqs[i]->unit_size);
+               num_unit_info = __le32_to_cpu(arg.mem_reqs[i]->num_unit_info);
 
                if (num_unit_info & NUM_UNITS_IS_NUM_PEERS)
                        /* number of units to allocate is number of
@@ -2364,7 +2361,7 @@ static void ath10k_wmi_10x_service_ready_event_rx(struct ath10k *ar,
                ath10k_dbg(ar, ATH10K_DBG_WMI,
                           "wmi mem_req_id %d num_units %d num_unit_info %d unit size %d actual units %d\n",
                           req_id,
-                          __le32_to_cpu(ev->mem_reqs[i].num_units),
+                          __le32_to_cpu(arg.mem_reqs[i]->num_units),
                           num_unit_info,
                           unit_size,
                           num_units);
@@ -2375,18 +2372,18 @@ static void ath10k_wmi_10x_service_ready_event_rx(struct ath10k *ar,
                        return;
        }
 
-exit:
        ath10k_dbg(ar, ATH10K_DBG_WMI,
-                  "wmi event service ready sw_ver 0x%08x abi_ver %u phy_cap 0x%08x ht_cap 0x%08x vht_cap 0x%08x vht_supp_msc 0x%08x sys_cap_info 0x%08x mem_reqs %u num_rf_chains %u\n",
-                  __le32_to_cpu(ev->sw_version),
-                  __le32_to_cpu(ev->abi_version),
-                  __le32_to_cpu(ev->phy_capability),
-                  __le32_to_cpu(ev->ht_cap_info),
-                  __le32_to_cpu(ev->vht_cap_info),
-                  __le32_to_cpu(ev->vht_supp_mcs),
-                  __le32_to_cpu(ev->sys_cap_info),
-                  __le32_to_cpu(ev->num_mem_reqs),
-                  __le32_to_cpu(ev->num_rf_chains));
+                  "wmi event service ready min_tx_power 0x%08x max_tx_power 0x%08x ht_cap 0x%08x vht_cap 0x%08x sw_ver0 0x%08x sw_ver1 0x%08x phy_capab 0x%08x num_rf_chains 0x%08x eeprom_rd 0x%08x num_mem_reqs 0x%08x\n",
+                  __le32_to_cpu(arg.min_tx_power),
+                  __le32_to_cpu(arg.max_tx_power),
+                  __le32_to_cpu(arg.ht_cap),
+                  __le32_to_cpu(arg.vht_cap),
+                  __le32_to_cpu(arg.sw_ver0),
+                  __le32_to_cpu(arg.sw_ver1),
+                  __le32_to_cpu(arg.phy_capab),
+                  __le32_to_cpu(arg.num_rf_chains),
+                  __le32_to_cpu(arg.eeprom_rd),
+                  __le32_to_cpu(arg.num_mem_reqs));
 
        complete(&ar->wmi.service_ready);
 }
@@ -2634,7 +2631,7 @@ static void ath10k_wmi_10x_process_rx(struct ath10k *ar, struct sk_buff *skb)
                ath10k_wmi_event_vdev_resume_req(ar, skb);
                break;
        case WMI_10X_SERVICE_READY_EVENTID:
-               ath10k_wmi_10x_service_ready_event_rx(ar, skb);
+               ath10k_wmi_service_ready_event_rx(ar, skb);
                break;
        case WMI_10X_READY_EVENTID:
                ath10k_wmi_ready_event_rx(ar, skb);
@@ -2745,7 +2742,7 @@ static void ath10k_wmi_10_2_process_rx(struct ath10k *ar, struct sk_buff *skb)
                ath10k_wmi_event_vdev_resume_req(ar, skb);
                break;
        case WMI_10_2_SERVICE_READY_EVENTID:
-               ath10k_wmi_10x_service_ready_event_rx(ar, skb);
+               ath10k_wmi_service_ready_event_rx(ar, skb);
                break;
        case WMI_10_2_READY_EVENTID:
                ath10k_wmi_ready_event_rx(ar, skb);