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Miller" , devicetree@vger.kernel.org, Rob Herring , linux-mmc@vger.kernel.org, =?utf-8?q?Pali_Roh=C3=A1r?= , Ulf Hansson , =?utf-8?b?SsOpcsO0bWUg?= =?utf-8?q?Pouiller?= Subject: [PATCH v4 21/24] wfx: add debug.c/debug.h Date: Wed, 23 Dec 2020 16:39:22 +0100 Message-Id: <20201223153925.73742-22-Jerome.Pouiller@silabs.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201223153925.73742-1-Jerome.Pouiller@silabs.com> References: <20201223153925.73742-1-Jerome.Pouiller@silabs.com> X-Originating-IP: [82.67.86.106] X-ClientProxiedBy: SA0PR12CA0024.namprd12.prod.outlook.com (2603:10b6:806:6f::29) To SN6PR11MB2718.namprd11.prod.outlook.com (2603:10b6:805:63::18) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from pc-42.silabs.com (82.67.86.106) by SA0PR12CA0024.namprd12.prod.outlook.com (2603:10b6:806:6f::29) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3700.27 via Frontend Transport; Wed, 23 Dec 2020 15:40:28 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: d852495f-8214-4ce6-730b-08d8a7591435 X-MS-TrafficTypeDiagnostic: SN6PR11MB2815: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:989; 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X-MS-Exchange-AntiSpam-MessageData: =?utf-8?q?jGAg9/XTZ6P9JTXt76px+sv/ywZ?= =?utf-8?q?xGIeCd3ecKkzq8utICzVVw5dI7ZMpDBrmm5K5ED17meJVngUQXdMnVYz?= =?utf-8?q?+c/hKYTGU8HwbUqeLsjRpsP4ri+KIRMxP8CIzM0T6JHDli/ifrizgcDu?= =?utf-8?q?5bR+C7+YHu7cnUv0zfrYz2KJsNJg3vjjKTHSf9Bj+vhzG9yH+X+uf8HT?= =?utf-8?q?bpaZwJ7nix6/JSDWichv56Kkax8qLQwlUra1rS4fBqaqFcdibvrTKcxI?= =?utf-8?q?kGsqYIg1B7tUmWysbqXUI4s11CiBUP6XI+TYdYjRjWg4my0bs+cdoIrh?= =?utf-8?q?lm2zfqPrEPkqcXDekROu5IUb8VioLipG0eTs5moMFFfJ2WKZhdOX9Hou?= =?utf-8?q?gocoSLKvSXPrzd9hji9TWI5ThPL0n5GKmeuFj8Uue5MsvKiVBVYzW5sa?= =?utf-8?q?Nk5VqHKmJHTNYNFHXf1FcCDr3JLFhMW6tM8cL59N5Br5bDuR1DK9QmPD?= =?utf-8?q?6z4SMRXU5cg0NyWtZlPWnTFnLLrSyv06mp0lwjpvUdW15jhBkARQV8Li?= =?utf-8?q?bQgARbpE3BJHe955Nka6Y3VssIhzFeZ4roCUP26QLfhakHLWLVKKAHzB?= =?utf-8?q?4JPLFIlnhjvS8CTz2GssDSPXwI2hQILD+tITeuAswjbt2P2ADUSi/nDw?= =?utf-8?q?/etv5e4/kw0TT3AaWvpSLMYH+w1bKGoioMTuckyl/nrGC5sUErsIJ8Bg?= =?utf-8?q?1QwODozTXYeEKffsnFFZpuB+Vf6h+J7v486YWpvMN7PgiPD9yrWSUPxi?= =?utf-8?q?hK6P8p+4ZTGhEblVXr9Wp+XLzZMe15glCWJgo6vsSAFuthWEcUqhzBjn?= =?utf-8?q?DaXI5I5udltolQbW+BOwhS8d6/EUkCK/vJoBaDpfmSP8Ig9CeogcoHG5?= =?utf-8?q?yykE4RLftJ/hmvhdhbv+FpVCF4bh6GdugFrXdk8Jx14xanSviIyc3trt?= =?utf-8?q?fF3HU65YmzZTYhFZRucrSwJWBRRwBP2JOIpNPBXxAsD2tVbgJ/bo/z1V?= =?utf-8?q?NT6JgaocZDC8KeVz2TaWjwN8I9ZQAe2sWNt85BQ66m4aF?= X-OriginatorOrg: silabs.com X-MS-Exchange-CrossTenant-AuthSource: SN6PR11MB2718.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Dec 2020 15:40:30.4960 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 54dbd822-5231-4b20-944d-6f4abcd541fb X-MS-Exchange-CrossTenant-Network-Message-Id: d852495f-8214-4ce6-730b-08d8a7591435 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: mcXbFllEVrEXZlM3ilEKdXOb6wk3wmkTCq0QBYmILQy86bRiAjP0Rfoay6vRPCGprohs1GcWWRkBSpMGen+P2w== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN6PR11MB2815 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Jérôme Pouiller Signed-off-by: Jérôme Pouiller --- drivers/net/wireless/silabs/wfx/debug.c | 361 ++++++++++++++++++++++++ drivers/net/wireless/silabs/wfx/debug.h | 19 ++ 2 files changed, 380 insertions(+) create mode 100644 drivers/net/wireless/silabs/wfx/debug.c create mode 100644 drivers/net/wireless/silabs/wfx/debug.h diff --git a/drivers/net/wireless/silabs/wfx/debug.c b/drivers/net/wireless/silabs/wfx/debug.c new file mode 100644 index 000000000000..3f7101213df3 --- /dev/null +++ b/drivers/net/wireless/silabs/wfx/debug.c @@ -0,0 +1,361 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Debugfs interface. + * + * Copyright (c) 2017-2020, Silicon Laboratories, Inc. + * Copyright (c) 2010, ST-Ericsson + */ +#include +#include +#include + +#include "debug.h" +#include "wfx.h" +#include "sta.h" +#include "main.h" +#include "hif_tx.h" +#include "hif_tx_mib.h" + +#define CREATE_TRACE_POINTS +#include "traces.h" + +static const struct trace_print_flags hif_msg_print_map[] = { + hif_msg_list, +}; + +static const struct trace_print_flags hif_mib_print_map[] = { + hif_mib_list, +}; + +static const struct trace_print_flags wfx_reg_print_map[] = { + wfx_reg_list, +}; + +static const char *get_symbol(unsigned long val, + const struct trace_print_flags *symbol_array) +{ + int i; + + for (i = 0; symbol_array[i].mask != -1; i++) { + if (val == symbol_array[i].mask) + return symbol_array[i].name; + } + + return "unknown"; +} + +const char *get_hif_name(unsigned long id) +{ + return get_symbol(id, hif_msg_print_map); +} + +const char *get_mib_name(unsigned long id) +{ + return get_symbol(id, hif_mib_print_map); +} + +const char *get_reg_name(unsigned long id) +{ + return get_symbol(id, wfx_reg_print_map); +} + +static int wfx_counters_show(struct seq_file *seq, void *v) +{ + int ret, i; + struct wfx_dev *wdev = seq->private; + struct hif_mib_extended_count_table counters[3]; + + for (i = 0; i < ARRAY_SIZE(counters); i++) { + ret = hif_get_counters_table(wdev, i, counters + i); + if (ret < 0) + return ret; + if (ret > 0) + return -EIO; + } + + seq_printf(seq, "%-24s %12s %12s %12s\n", + "", "global", "iface 0", "iface 1"); + +#define PUT_COUNTER(name) \ + seq_printf(seq, "%-24s %12d %12d %12d\n", #name, \ + le32_to_cpu(counters[2].count_##name), \ + le32_to_cpu(counters[0].count_##name), \ + le32_to_cpu(counters[1].count_##name)) + + PUT_COUNTER(tx_packets); + PUT_COUNTER(tx_multicast_frames); + PUT_COUNTER(tx_frames_success); + PUT_COUNTER(tx_frame_failures); + PUT_COUNTER(tx_frames_retried); + PUT_COUNTER(tx_frames_multi_retried); + + PUT_COUNTER(rts_success); + PUT_COUNTER(rts_failures); + PUT_COUNTER(ack_failures); + + PUT_COUNTER(rx_packets); + PUT_COUNTER(rx_frames_success); + PUT_COUNTER(rx_packet_errors); + PUT_COUNTER(plcp_errors); + PUT_COUNTER(fcs_errors); + PUT_COUNTER(rx_decryption_failures); + PUT_COUNTER(rx_mic_failures); + PUT_COUNTER(rx_no_key_failures); + PUT_COUNTER(rx_frame_duplicates); + PUT_COUNTER(rx_multicast_frames); + PUT_COUNTER(rx_cmacicv_errors); + PUT_COUNTER(rx_cmac_replays); + PUT_COUNTER(rx_mgmt_ccmp_replays); + + PUT_COUNTER(rx_beacon); + PUT_COUNTER(miss_beacon); + +#undef PUT_COUNTER + + for (i = 0; i < ARRAY_SIZE(counters[0].reserved); i++) + seq_printf(seq, "reserved[%02d]%12s %12d %12d %12d\n", i, "", + le32_to_cpu(counters[2].reserved[i]), + le32_to_cpu(counters[0].reserved[i]), + le32_to_cpu(counters[1].reserved[i])); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(wfx_counters); + +static const char * const channel_names[] = { + [0] = "1M", + [1] = "2M", + [2] = "5.5M", + [3] = "11M", + /* Entries 4 and 5 does not exist */ + [6] = "6M", + [7] = "9M", + [8] = "12M", + [9] = "18M", + [10] = "24M", + [11] = "36M", + [12] = "48M", + [13] = "54M", + [14] = "MCS0", + [15] = "MCS1", + [16] = "MCS2", + [17] = "MCS3", + [18] = "MCS4", + [19] = "MCS5", + [20] = "MCS6", + [21] = "MCS7", +}; + +static int wfx_rx_stats_show(struct seq_file *seq, void *v) +{ + struct wfx_dev *wdev = seq->private; + struct hif_rx_stats *st = &wdev->rx_stats; + int i; + + mutex_lock(&wdev->rx_stats_lock); + seq_printf(seq, "Timestamp: %dus\n", st->date); + seq_printf(seq, "Low power clock: frequency %uHz, external %s\n", + le32_to_cpu(st->pwr_clk_freq), + st->is_ext_pwr_clk ? "yes" : "no"); + seq_printf(seq, + "Num. of frames: %d, PER (x10e4): %d, Throughput: %dKbps/s\n", + st->nb_rx_frame, st->per_total, st->throughput); + seq_puts(seq, " Num. of PER RSSI SNR CFO\n"); + seq_puts(seq, " frames (x10e4) (dBm) (dB) (kHz)\n"); + for (i = 0; i < ARRAY_SIZE(channel_names); i++) { + if (channel_names[i]) + seq_printf(seq, "%5s %8d %8d %8d %8d %8d\n", + channel_names[i], + le32_to_cpu(st->nb_rx_by_rate[i]), + le16_to_cpu(st->per[i]), + (s16)le16_to_cpu(st->rssi[i]) / 100, + (s16)le16_to_cpu(st->snr[i]) / 100, + (s16)le16_to_cpu(st->cfo[i])); + } + mutex_unlock(&wdev->rx_stats_lock); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(wfx_rx_stats); + +static int wfx_tx_power_loop_show(struct seq_file *seq, void *v) +{ + struct wfx_dev *wdev = seq->private; + struct hif_tx_power_loop_info *st = &wdev->tx_power_loop_info; + int tmp; + + mutex_lock(&wdev->tx_power_loop_info_lock); + tmp = le16_to_cpu(st->tx_gain_dig); + seq_printf(seq, "Tx gain digital: %d\n", tmp); + tmp = le16_to_cpu(st->tx_gain_pa); + seq_printf(seq, "Tx gain PA: %d\n", tmp); + tmp = (s16)le16_to_cpu(st->target_pout); + seq_printf(seq, "Target Pout: %d.%02d dBm\n", tmp / 4, (tmp % 4) * 25); + tmp = (s16)le16_to_cpu(st->p_estimation); + seq_printf(seq, "FEM Pout: %d.%02d dBm\n", tmp / 4, (tmp % 4) * 25); + tmp = le16_to_cpu(st->vpdet); + seq_printf(seq, "Vpdet: %d mV\n", tmp); + seq_printf(seq, "Measure index: %d\n", st->measurement_index); + mutex_unlock(&wdev->tx_power_loop_info_lock); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(wfx_tx_power_loop); + +static ssize_t wfx_send_pds_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct wfx_dev *wdev = file->private_data; + char *buf; + int ret; + + if (*ppos != 0) { + dev_dbg(wdev->dev, "PDS data must be written in one transaction"); + return -EBUSY; + } + buf = memdup_user(user_buf, count); + if (IS_ERR(buf)) + return PTR_ERR(buf); + *ppos = *ppos + count; + ret = wfx_send_pds(wdev, buf, count); + kfree(buf); + if (ret < 0) + return ret; + return count; +} + +static const struct file_operations wfx_send_pds_fops = { + .open = simple_open, + .write = wfx_send_pds_write, +}; + +struct dbgfs_hif_msg { + struct wfx_dev *wdev; + struct completion complete; + u8 reply[1024]; + int ret; +}; + +static ssize_t wfx_send_hif_msg_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct dbgfs_hif_msg *context = file->private_data; + struct wfx_dev *wdev = context->wdev; + struct hif_msg *request; + + if (completion_done(&context->complete)) { + dev_dbg(wdev->dev, "read previous result before start a new one\n"); + return -EBUSY; + } + if (count < sizeof(struct hif_msg)) + return -EINVAL; + + /* wfx_cmd_send() checks that reply buffer is wide enough, but does not + * return precise length read. User have to know how many bytes should + * be read. Filling reply buffer with a memory pattern may help user. + */ + memset(context->reply, 0xFF, sizeof(context->reply)); + request = memdup_user(user_buf, count); + if (IS_ERR(request)) + return PTR_ERR(request); + if (le16_to_cpu(request->len) != count) { + kfree(request); + return -EINVAL; + } + context->ret = wfx_cmd_send(wdev, request, context->reply, + sizeof(context->reply), false); + + kfree(request); + complete(&context->complete); + return count; +} + +static ssize_t wfx_send_hif_msg_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct dbgfs_hif_msg *context = file->private_data; + int ret; + + if (count > sizeof(context->reply)) + return -EINVAL; + ret = wait_for_completion_interruptible(&context->complete); + if (ret) + return ret; + if (context->ret < 0) + return context->ret; + /* Be careful, write() is waiting for a full message while read() + * only returns a payload + */ + if (copy_to_user(user_buf, context->reply, count)) + return -EFAULT; + + return count; +} + +static int wfx_send_hif_msg_open(struct inode *inode, struct file *file) +{ + struct dbgfs_hif_msg *context = kzalloc(sizeof(*context), GFP_KERNEL); + + if (!context) + return -ENOMEM; + context->wdev = inode->i_private; + init_completion(&context->complete); + file->private_data = context; + return 0; +} + +static int wfx_send_hif_msg_release(struct inode *inode, struct file *file) +{ + struct dbgfs_hif_msg *context = file->private_data; + + kfree(context); + return 0; +} + +static const struct file_operations wfx_send_hif_msg_fops = { + .open = wfx_send_hif_msg_open, + .release = wfx_send_hif_msg_release, + .write = wfx_send_hif_msg_write, + .read = wfx_send_hif_msg_read, +}; + +static int wfx_ps_timeout_set(void *data, u64 val) +{ + struct wfx_dev *wdev = (struct wfx_dev *)data; + struct wfx_vif *wvif; + + wdev->force_ps_timeout = val; + wvif = NULL; + while ((wvif = wvif_iterate(wdev, wvif)) != NULL) + wfx_update_pm(wvif); + return 0; +} + +static int wfx_ps_timeout_get(void *data, u64 *val) +{ + struct wfx_dev *wdev = (struct wfx_dev *)data; + + *val = wdev->force_ps_timeout; + return 0; +} + +DEFINE_DEBUGFS_ATTRIBUTE(wfx_ps_timeout_fops, wfx_ps_timeout_get, wfx_ps_timeout_set, "%lld\n"); + +int wfx_debug_init(struct wfx_dev *wdev) +{ + struct dentry *d; + + d = debugfs_create_dir("wfx", wdev->hw->wiphy->debugfsdir); + debugfs_create_file("counters", 0444, d, wdev, &wfx_counters_fops); + debugfs_create_file("rx_stats", 0444, d, wdev, &wfx_rx_stats_fops); + debugfs_create_file("tx_power_loop", 0444, d, wdev, + &wfx_tx_power_loop_fops); + debugfs_create_file("send_pds", 0200, d, wdev, &wfx_send_pds_fops); + debugfs_create_file("send_hif_msg", 0600, d, wdev, + &wfx_send_hif_msg_fops); + debugfs_create_file("ps_timeout", 0600, d, wdev, &wfx_ps_timeout_fops); + + return 0; +} diff --git a/drivers/net/wireless/silabs/wfx/debug.h b/drivers/net/wireless/silabs/wfx/debug.h new file mode 100644 index 000000000000..4b9c49a9fffb --- /dev/null +++ b/drivers/net/wireless/silabs/wfx/debug.h @@ -0,0 +1,19 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Debugfs interface. + * + * Copyright (c) 2017-2019, Silicon Laboratories, Inc. + * Copyright (c) 2011, ST-Ericsson + */ +#ifndef WFX_DEBUG_H +#define WFX_DEBUG_H + +struct wfx_dev; + +int wfx_debug_init(struct wfx_dev *wdev); + +const char *get_hif_name(unsigned long id); +const char *get_mib_name(unsigned long id); +const char *get_reg_name(unsigned long id); + +#endif