Return-path: Received: from alexa-out-ams-01.qualcomm.com ([185.23.61.162]:21767 "EHLO alexa-out-ams-01.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751464AbeBZSNG (ORCPT ); Mon, 26 Feb 2018 13:13:06 -0500 From: Maya Erez To: Kalle Valo Cc: Lior David , linux-wireless@vger.kernel.org, wil6210@qti.qualcomm.com, Maya Erez Subject: [PATCH v2 2/8] wil6210: support concurrency record in FW file Date: Mon, 26 Feb 2018 20:12:12 +0200 Message-Id: <1519668738-16912-3-git-send-email-merez@codeaurora.org> (sfid-20180226_191324_446372_22904633) In-Reply-To: <1519668738-16912-1-git-send-email-merez@codeaurora.org> References: <1519668738-16912-1-git-send-email-merez@codeaurora.org> Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Lior David New FW which supports multiple virtual interfaces, reports its allowed interface combinations using a special comment record in the FW file. The format of the interface combinations is similar to the kernel wiphy->iface_combinations. When parsing FW file during module initialization, also parse and validate the concurrency record, and initialize wiphy->n_iface_combinations and wiphy->iface_combinations accordingly. Signed-off-by: Lior David Signed-off-by: Maya Erez --- drivers/net/wireless/ath/wil6210/cfg80211.c | 69 +++++++++++++++++++++++++++++ drivers/net/wireless/ath/wil6210/fw.h | 38 +++++++++++++++- drivers/net/wireless/ath/wil6210/fw_inc.c | 52 ++++++++++++++++++++-- drivers/net/wireless/ath/wil6210/wil6210.h | 4 ++ 4 files changed, 158 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c index eeed85c..c959f15 100644 --- a/drivers/net/wireless/ath/wil6210/cfg80211.c +++ b/drivers/net/wireless/ath/wil6210/cfg80211.c @@ -20,6 +20,7 @@ #include #include "wil6210.h" #include "wmi.h" +#include "fw.h" #define WIL_MAX_ROC_DURATION_MS 5000 @@ -1896,6 +1897,71 @@ static void wil_wiphy_init(struct wiphy *wiphy) #endif } +int wil_cfg80211_iface_combinations_from_fw( + struct wil6210_priv *wil, const struct wil_fw_record_concurrency *conc) +{ + struct wiphy *wiphy = wil_to_wiphy(wil); + u32 total_limits = 0; + u16 n_combos; + const struct wil_fw_concurrency_combo *combo; + const struct wil_fw_concurrency_limit *limit; + struct ieee80211_iface_combination *iface_combinations; + struct ieee80211_iface_limit *iface_limit; + int i, j; + + if (wiphy->iface_combinations) { + wil_dbg_misc(wil, "iface_combinations already set, skipping\n"); + return 0; + } + + combo = conc->combos; + n_combos = le16_to_cpu(conc->n_combos); + for (i = 0; i < n_combos; i++) { + total_limits += combo->n_limits; + limit = combo->limits + combo->n_limits; + combo = (struct wil_fw_concurrency_combo *)limit; + } + + iface_combinations = + kzalloc(n_combos * sizeof(struct ieee80211_iface_combination) + + total_limits * sizeof(struct ieee80211_iface_limit), + GFP_KERNEL); + if (!iface_combinations) + return -ENOMEM; + iface_limit = (struct ieee80211_iface_limit *)(iface_combinations + + n_combos); + combo = conc->combos; + for (i = 0; i < n_combos; i++) { + iface_combinations[i].max_interfaces = combo->max_interfaces; + iface_combinations[i].num_different_channels = + combo->n_diff_channels; + iface_combinations[i].beacon_int_infra_match = + combo->same_bi; + iface_combinations[i].n_limits = combo->n_limits; + wil_dbg_misc(wil, + "iface_combination %d: max_if %d, num_ch %d, bi_match %d\n", + i, iface_combinations[i].max_interfaces, + iface_combinations[i].num_different_channels, + iface_combinations[i].beacon_int_infra_match); + limit = combo->limits; + for (j = 0; j < combo->n_limits; j++) { + iface_limit[j].max = le16_to_cpu(limit[j].max); + iface_limit[j].types = le16_to_cpu(limit[j].types); + wil_dbg_misc(wil, + "limit %d: max %d types 0x%x\n", j, + iface_limit[j].max, iface_limit[j].types); + } + iface_combinations[i].limits = iface_limit; + iface_limit += combo->n_limits; + limit += combo->n_limits; + combo = (struct wil_fw_concurrency_combo *)limit; + } + + wiphy->n_iface_combinations = n_combos; + wiphy->iface_combinations = iface_combinations; + return 0; +} + struct wil6210_priv *wil_cfg80211_init(struct device *dev) { struct wiphy *wiphy; @@ -1934,6 +2000,9 @@ void wil_cfg80211_deinit(struct wil6210_priv *wil) if (!wiphy) return; + kfree(wiphy->iface_combinations); + wiphy->iface_combinations = NULL; + wiphy_free(wiphy); /* do not access wil6210_priv after returning from here */ } diff --git a/drivers/net/wireless/ath/wil6210/fw.h b/drivers/net/wireless/ath/wil6210/fw.h index 2c7b24f..3e7a280 100644 --- a/drivers/net/wireless/ath/wil6210/fw.h +++ b/drivers/net/wireless/ath/wil6210/fw.h @@ -14,6 +14,8 @@ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +#ifndef __WIL_FW_H__ +#define __WIL_FW_H__ #define WIL_FW_SIGNATURE (0x36323130) /* '0126' */ #define WIL_FW_FMT_VERSION (1) /* format version driver supports */ @@ -71,7 +73,39 @@ struct wil_fw_record_capabilities { /* type == wil_fw_type_comment */ struct wil_fw_record_comment_hdr hdr; /* capabilities (variable size), see enum wmi_fw_capability */ u8 capabilities[0]; -}; +} __packed; + +/* FW VIF concurrency encoded inside a comment record + * Format is similar to wiphy->iface_combinations + */ +#define WIL_FW_CONCURRENCY_MAGIC (0xfedccdef) +#define WIL_FW_CONCURRENCY_REC_VER 1 +struct wil_fw_concurrency_limit { + __le16 max; /* maximum number of interfaces of these types */ + __le16 types; /* interface types (bit mask of enum nl80211_iftype) */ +} __packed; + +struct wil_fw_concurrency_combo { + u8 n_limits; /* number of wil_fw_concurrency_limit entries */ + u8 max_interfaces; /* max number of concurrent interfaces allowed */ + u8 n_diff_channels; /* total number of different channels allowed */ + u8 same_bi; /* for APs, 1 if all APs must have same BI */ + /* keep last - concurrency limits, variable size by n_limits */ + struct wil_fw_concurrency_limit limits[0]; +} __packed; + +struct wil_fw_record_concurrency { /* type == wil_fw_type_comment */ + /* identifies concurrency record */ + __le32 magic; + /* structure version, currently always 1 */ + u8 version; + /* maximum number of supported MIDs _in addition_ to MID 0 */ + u8 n_mids; + /* number of concurrency combinations that follow */ + __le16 n_combos; + /* keep last - combinations, variable size by n_combos */ + struct wil_fw_concurrency_combo combos[0]; +} __packed; /* brd file info encoded inside a comment record */ #define WIL_BRD_FILE_MAGIC (0xabcddcbb) @@ -175,3 +209,5 @@ struct wil_fw_record_gateway_data4 { /* type == wil_fw_type_gateway_data4 */ __le32 command; struct wil_fw_data_gw4 data[0]; /* total size [data_size], see above */ } __packed; + +#endif /* __WIL_FW_H__ */ diff --git a/drivers/net/wireless/ath/wil6210/fw_inc.c b/drivers/net/wireless/ath/wil6210/fw_inc.c index 914c010..718161b 100644 --- a/drivers/net/wireless/ath/wil6210/fw_inc.c +++ b/drivers/net/wireless/ath/wil6210/fw_inc.c @@ -136,8 +136,8 @@ static int fw_ignore_section(struct wil6210_priv *wil, const void *data, size_t capa_size; if (size < sizeof(*rec)) { - wil_hex_dump_fw("", DUMP_PREFIX_OFFSET, 16, 1, - data, size, true); + wil_err_fw(wil, "capabilities record too short: %zu\n", size); + /* let the FW load anyway */ return 0; } @@ -158,8 +158,7 @@ static int fw_ignore_section(struct wil6210_priv *wil, const void *data, const struct wil_fw_record_brd_file *rec = data; if (size < sizeof(*rec)) { - wil_hex_dump_fw("", DUMP_PREFIX_OFFSET, 16, 1, - data, size, true); + wil_err_fw(wil, "brd_file record too short: %zu\n", size); return 0; } @@ -173,6 +172,44 @@ static int fw_ignore_section(struct wil6210_priv *wil, const void *data, } static int +fw_handle_concurrency(struct wil6210_priv *wil, const void *data, + size_t size) +{ + const struct wil_fw_record_concurrency *rec = data; + const struct wil_fw_concurrency_combo *combo; + const struct wil_fw_concurrency_limit *limit; + size_t remain, lsize; + int i, n_combos; + + if (size < sizeof(*rec)) { + wil_err_fw(wil, "concurrency record too short: %zu\n", size); + /* continue, let the FW load anyway */ + return 0; + } + + n_combos = le16_to_cpu(rec->n_combos); + remain = size - offsetof(struct wil_fw_record_concurrency, combos); + combo = rec->combos; + for (i = 0; i < n_combos; i++) { + if (remain < sizeof(*combo)) + goto out_short; + remain -= sizeof(*combo); + limit = combo->limits; + lsize = combo->n_limits * sizeof(*limit); + if (remain < lsize) + goto out_short; + remain -= lsize; + limit += combo->n_limits; + combo = (struct wil_fw_concurrency_combo *)limit; + } + + return wil_cfg80211_iface_combinations_from_fw(wil, rec); +out_short: + wil_err_fw(wil, "concurrency record truncated\n"); + return 0; +} + +static int fw_handle_comment(struct wil6210_priv *wil, const void *data, size_t size) { @@ -194,6 +231,13 @@ static int fw_ignore_section(struct wil6210_priv *wil, const void *data, wil_dbg_fw(wil, "magic is WIL_BRD_FILE_MAGIC\n"); rc = fw_handle_brd_file(wil, data, size); break; + case WIL_FW_CONCURRENCY_MAGIC: + wil_dbg_fw(wil, "magic is WIL_FW_CONCURRENCY_MAGIC\n"); + rc = fw_handle_concurrency(wil, data, size); + break; + default: + wil_hex_dump_fw("", DUMP_PREFIX_OFFSET, 16, 1, + data, size, true); } return rc; diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h index b33aa7d..81cb27a 100644 --- a/drivers/net/wireless/ath/wil6210/wil6210.h +++ b/drivers/net/wireless/ath/wil6210/wil6210.h @@ -26,6 +26,7 @@ #include #include "wmi.h" #include "wil_platform.h" +#include "fw.h" extern bool no_fw_recovery; extern unsigned int mtu_max; @@ -1012,6 +1013,9 @@ int wil_p2p_listen(struct wil6210_priv *wil, struct wireless_dev *wdev, int wil_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, struct cfg80211_mgmt_tx_params *params, u64 *cookie); +int wil_cfg80211_iface_combinations_from_fw( + struct wil6210_priv *wil, + const struct wil_fw_record_concurrency *conc); #if defined(CONFIG_WIL6210_DEBUGFS) int wil6210_debugfs_init(struct wil6210_priv *wil); -- 1.9.1