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Miller" , Jakub Kicinski , Aviad Brikman , Eliav Farber , Oleksandr Savchenko , Shay Bar , Viktor Barna Subject: [RFC v1 119/256] cl8k: add noise.c Date: Thu, 17 Jun 2021 16:00:06 +0000 Message-Id: <20210617160223.160998-120-viktor.barna@celeno.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210617160223.160998-1-viktor.barna@celeno.com> References: <20210617160223.160998-1-viktor.barna@celeno.com> X-Originating-IP: [62.216.42.54] X-ClientProxiedBy: PR3PR09CA0018.eurprd09.prod.outlook.com (2603:10a6:102:b7::23) To AM9P192MB1412.EURP192.PROD.OUTLOOK.COM (2603:10a6:20b:38b::16) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from localhost.localdomain (62.216.42.54) by PR3PR09CA0018.eurprd09.prod.outlook.com (2603:10a6:102:b7::23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4242.18 via Frontend Transport; Thu, 17 Jun 2021 16:04:44 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: ae1a978f-3db3-4e9b-804c-08d931a9a010 X-MS-TrafficTypeDiagnostic: AM0P192MB0402: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:1728; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:AM9P192MB1412.EURP192.PROD.OUTLOOK.COM;PTR:;CAT:NONE;SFS:(39850400004)(136003)(376002)(396003)(366004)(346002)(6916009)(6512007)(9686003)(6666004)(52116002)(2616005)(186003)(16526019)(38100700002)(38350700002)(1076003)(6506007)(5660300002)(107886003)(55236004)(86362001)(6486002)(8936002)(956004)(26005)(8676002)(30864003)(508600001)(2906002)(36756003)(54906003)(316002)(66946007)(66556008)(4326008)(66476007)(83380400001)(69590400013)(32563001);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: celeno.com X-MS-Exchange-CrossTenant-Network-Message-Id: ae1a978f-3db3-4e9b-804c-08d931a9a010 X-MS-Exchange-CrossTenant-AuthSource: AM9P192MB1412.EURP192.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Jun 2021 16:04:45.6775 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: f313103b-4c9f-4fd3-b5cf-b97f91c4afa8 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: BkvsIGkLwVBXYnh+hFJUvneVE/5oaamlotXyMYjN9yR+UFK3C6Zl6BoX2S0fk9Jg/w5fS7hYkONwwbx3ID0ekg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0P192MB0402 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Viktor Barna (Part of the split. Please, take a look at the cover letter for more details). Signed-off-by: Viktor Barna --- drivers/net/wireless/celeno/cl8k/noise.c | 499 +++++++++++++++++++++++ 1 file changed, 499 insertions(+) create mode 100644 drivers/net/wireless/celeno/cl8k/noise.c -- 2.30.0 diff --git a/drivers/net/wireless/celeno/cl8k/noise.c b/drivers/net/wireless/celeno/cl8k/noise.c new file mode 100644 index 000000000000..0bfd025196a6 --- /dev/null +++ b/drivers/net/wireless/celeno/cl8k/noise.c @@ -0,0 +1,499 @@ +// SPDX-License-Identifier: MIT +/* Copyright(c) 2019-2021, Celeno Communications Ltd. */ + +#include +#include "hw.h" +#include "noise.h" +#include "reg/reg_riu.h" +#include "utils/utils.h" + +#define NOISE_LOWER_LIMIT -100 +#define NOISE_UPPER_LIMIT -30 +/* Range is -100dBm to -30dBm */ +#define NOISE_SCALE_RANGE (NOISE_UPPER_LIMIT - NOISE_LOWER_LIMIT + 1) +#define NOISE_MAX_SAMPLES U8_MAX +#define MAX_20M_SUB_BAND 8 +#define MAX_SEC_BW_CNT 3 +#define MAX_ANT_PER_REG 4 + +static s8 cl_noise_process_sample(u32 sample, u8 cnt) +{ + s8 val = (s8)((sample >> (8 * cnt)) & 0xff); + + if (val < NOISE_LOWER_LIMIT) + val = NOISE_LOWER_LIMIT; + else if (val > NOISE_UPPER_LIMIT) + val = NOISE_UPPER_LIMIT; + + return val; +} + +static bool cl_noise_is_hist_line_empty(u8 *hist, u8 cnt) +{ + u8 i; + + for (i = 0; i < cnt; i++) + if (hist[i] != 0) + return false; + + return true; +} + +static int cl_noise_print_hist(struct cl_hw *cl_hw, bool nasp_stats) +{ + struct cl_noise_db *noise_db = &cl_hw->noise_db; + struct cl_noise_reg *reg = NULL; + u8 hist[NOISE_SCALE_RANGE][MAX_ANTENNAS] = { { 0 } }; + u8 num_antennas = cl_hw->num_antennas; + s8 val_stat; + u8 i = 0, j = 0; + char *buf = NULL; + ssize_t buf_size; + int err = 0; + int len = 0; + + if (list_empty(&noise_db->reg_list)) + return 0; + + list_for_each_entry(reg, &noise_db->reg_list, list) { + for (i = 0; i < min_t(u8, num_antennas, MAX_ANT_PER_REG); i++) { + if (nasp_stats) + val_stat = cl_noise_process_sample(reg->nasp_prim20_per_ant, i); + else + val_stat = cl_noise_process_sample(reg->np_prim20_per_ant, i); + + hist[(val_stat * -1) + NOISE_UPPER_LIMIT][i]++; + } + + if (num_antennas <= MAX_ANT_PER_REG) + continue; + + for (i = 0; i < num_antennas - MAX_ANT_PER_REG; i++) { + if (nasp_stats) + val_stat = cl_noise_process_sample(reg->nasp_prim20_per_ant2, i); + else + val_stat = cl_noise_process_sample(reg->np_prim20_per_ant2, i); + + hist[(val_stat * -1) + NOISE_UPPER_LIMIT][i + MAX_ANT_PER_REG]++; + } + } + + cl_snprintf(&buf, &len, &buf_size, + "Noise %sstrength histogram (dBm):\n", nasp_stats ? "and signal " : ""); + + cl_snprintf(&buf, &len, &buf_size, "------------------"); + for (j = 0; j < num_antennas; j++) + cl_snprintf(&buf, &len, &buf_size, "-------"); + + cl_snprintf(&buf, &len, &buf_size, "\n| Noise Strength "); + + for (j = 0; j < num_antennas; j++) + cl_snprintf(&buf, &len, &buf_size, "| Ant%u ", j); + + cl_snprintf(&buf, &len, &buf_size, "|\n|----------------"); + + for (j = 0; j < num_antennas; j++) + cl_snprintf(&buf, &len, &buf_size, "+------"); + + cl_snprintf(&buf, &len, &buf_size, "|\n"); + + for (i = 0; i < NOISE_SCALE_RANGE; i++) { + if (cl_noise_is_hist_line_empty(hist[i], num_antennas)) + continue; + + cl_snprintf(&buf, &len, &buf_size, "|%9d ", -i + NOISE_UPPER_LIMIT); + for (j = 0; j < num_antennas; j++) + cl_snprintf(&buf, &len, &buf_size, "| %3u ", hist[i][j]); + + cl_snprintf(&buf, &len, &buf_size, "|\n"); + } + + cl_snprintf(&buf, &len, &buf_size, "|----------------"); + for (j = 0; j < num_antennas; j++) + cl_snprintf(&buf, &len, &buf_size, "+------"); + + cl_snprintf(&buf, &len, &buf_size, "|\n"); + + err = cl_vendor_reply(cl_hw, buf, len); + kfree(buf); + + return err; +} + +static int cl_noise_print_hist_per_channel(struct cl_hw *cl_hw, + bool nasp_stats) +{ + struct cl_noise_db *noise_db = &cl_hw->noise_db; + struct cl_noise_reg *reg = NULL; + u8 ch_bw = cl_hw->conf->ce_channel_bandwidth; + u8 ch_cnt = 1 << ch_bw; + u8 hist[NOISE_SCALE_RANGE][MAX_20M_SUB_BAND] = { { 0 } }; + s8 val1, val2; + u8 i = 0, j = 0; + char *buf = NULL; + ssize_t buf_size; + int err = 0; + int len = 0; + + if (list_empty(&noise_db->reg_list)) + return 0; + + list_for_each_entry(reg, &noise_db->reg_list, list) { + for (i = 0; i < min_t(u8, ch_cnt, MAX_ANT_PER_REG); i++) { + if (nasp_stats) { + val1 = cl_noise_process_sample(reg->nasp_sub20_per_chn, i); + + if (ch_bw == CHNL_BW_160) + val2 = cl_noise_process_sample(reg->nasp_sub20_per_chn2, i); + } else { + val1 = cl_noise_process_sample(reg->np_sub20_per_chn, i); + + if (ch_bw == CHNL_BW_160) + val2 = cl_noise_process_sample(reg->np_sub20_per_chn2, i); + } + + hist[(val1 * -1) + NOISE_UPPER_LIMIT][i]++; + if (ch_bw == CHNL_BW_160) + hist[(val2 * -1) + NOISE_UPPER_LIMIT][i + MAX_ANT_PER_REG]++; + } + } + + cl_snprintf(&buf, &len, &buf_size, + "Noise %sstrength per 20 Mhz channel histogram ant %u (dBm):\n" + "------------------", + nasp_stats ? "and signal " : "", noise_db->active_ant); + + for (j = 0; j < ch_cnt; j++) + cl_snprintf(&buf, &len, &buf_size, "--------"); + + cl_snprintf(&buf, &len, &buf_size, "\n| Noise Strength "); + for (j = 0; j < ch_cnt; j++) + cl_snprintf(&buf, &len, &buf_size, "| Chan%u ", j); + + cl_snprintf(&buf, &len, &buf_size, "|\n|----------------"); + + for (j = 0; j < ch_cnt; j++) + cl_snprintf(&buf, &len, &buf_size, "+-------"); + + cl_snprintf(&buf, &len, &buf_size, "|\n"); + + for (i = 0; i < NOISE_SCALE_RANGE; i++) { + if (cl_noise_is_hist_line_empty(hist[i], ch_cnt)) + continue; + + cl_snprintf(&buf, &len, &buf_size, "|%9d ", -i + NOISE_UPPER_LIMIT); + + for (j = 0; j < ch_cnt; j++) + cl_snprintf(&buf, &len, &buf_size, "| %3u ", hist[i][j]); + + cl_snprintf(&buf, &len, &buf_size, "|\n"); + } + + cl_snprintf(&buf, &len, &buf_size, "|----------------"); + + for (j = 0; j < ch_cnt; j++) + cl_snprintf(&buf, &len, &buf_size, "+-------"); + + cl_snprintf(&buf, &len, &buf_size, "|\n"); + + err = cl_vendor_reply(cl_hw, buf, len); + kfree(buf); + + return err; +} + +static int cl_noise_print_hist_dens(struct cl_hw *cl_hw, bool nasp_stats) +{ + struct cl_noise_db *noise_db = &cl_hw->noise_db; + struct cl_noise_reg *reg = NULL; + u8 hist[NOISE_SCALE_RANGE][MAX_SEC_BW_CNT] = { { 0 } }; + u8 ch_bw = cl_hw->conf->ce_channel_bandwidth; + s8 val; + u8 i = 0, j = 0; + char *buf = NULL; + ssize_t buf_size; + int err = 0; + int len = 0; + + if (list_empty(&noise_db->reg_list) || ch_bw == 0) + return 0; + + list_for_each_entry(reg, &noise_db->reg_list, list) { + for (i = 0; i < ch_bw; i++) { + if (nasp_stats) + val = cl_noise_process_sample(reg->nasp_sec20_dens_per_ant, i); + else + val = cl_noise_process_sample(reg->np_sec20_dens_per_ant, i); + + hist[(val * -1) + NOISE_UPPER_LIMIT][i]++; + } + } + + cl_snprintf(&buf, &len, &buf_size, + "Noise %spower density histogram ant %u (dBm/20Mhz):\n", + nasp_stats ? "and signal " : "", noise_db->active_ant); + + cl_snprintf(&buf, &len, &buf_size, "-----------------"); + + for (j = 0; j < ch_bw; j++) + cl_snprintf(&buf, &len, &buf_size, "--------"); + + cl_snprintf(&buf, &len, &buf_size, "\n| Noise Density "); + + for (j = 0; j < ch_bw; j++) + cl_snprintf(&buf, &len, &buf_size, "| SEC%u ", 20 * (1 << j)); + + cl_snprintf(&buf, &len, &buf_size, "|\n|---------------"); + for (j = 0; j < ch_bw; j++) + cl_snprintf(&buf, &len, &buf_size, "+-------"); + + cl_snprintf(&buf, &len, &buf_size, "|\n"); + + for (i = 0; i < NOISE_SCALE_RANGE; i++) { + if (cl_noise_is_hist_line_empty(hist[i], ch_bw)) + continue; + + cl_snprintf(&buf, &len, &buf_size, "|%9d ", -i + NOISE_UPPER_LIMIT); + for (j = 0; j < ch_bw; j++) + cl_snprintf(&buf, &len, &buf_size, "| %3u ", hist[i][j]); + + cl_snprintf(&buf, &len, &buf_size, "|\n"); + } + + cl_snprintf(&buf, &len, &buf_size, "|---------------"); + for (j = 0; j < ch_bw; j++) + cl_snprintf(&buf, &len, &buf_size, "+-------"); + + cl_snprintf(&buf, &len, &buf_size, "|\n"); + + err = cl_vendor_reply(cl_hw, buf, len); + kfree(buf); + + return err; +} + +static int cl_noise_cli_help(struct cl_hw *cl_hw) +{ + char *buf = kzalloc(PAGE_SIZE, GFP_KERNEL); + int err = 0; + + if (!buf) + return -ENOMEM; + + snprintf(buf, PAGE_SIZE, + "stats usage:\n" + "-a : Set antenna\n" + "-b : En/Dis noise histogram [0-stop, max samples-255]\n" + "-c : Print 20Mhz channels noise power\n" + "-d : Print 20Mhz channels noise and signal power\n" + "-e : Print noise density histogram\n" + "-f : Print noise and signal density histogram\n" + "-g : Print noise power histogram\n" + "-h : Print noise and signal power histogram\n" + "-r : Reset histogram\n"); + + err = cl_vendor_reply(cl_hw, buf, strlen(buf)); + kfree(buf); + + return err; +} + +static void cl_noise_set_ant(struct cl_hw *cl_hw, u8 active_ant) +{ + struct cl_noise_db *noise_db = &cl_hw->noise_db; + u8 max_ant = cl_hw->num_antennas - 1; + + if (noise_db->sample_cnt != 0) { + pr_warn("Can't set antenna during statistics collection\n"); + return; + } + + if (active_ant > max_ant) { + pr_err("Invalid antennas configuration. Should be 0-%u!\n", max_ant); + return; + } + + if (active_ant == noise_db->active_ant) { + pr_warn("Ant %u already set!\n", active_ant); + return; + } + + /* Antenna is different now so clear all stats */ + cl_noise_close(cl_hw); + + riu_rwnxagcccactrl_cca_main_ant_sel_setf(cl_hw, active_ant); + + noise_db->active_ant = active_ant; + + pr_debug("Antenna selected : %u\n", active_ant); +} + +void cl_noise_init(struct cl_hw *cl_hw) +{ + struct cl_noise_db *noise_db = &cl_hw->noise_db; + + INIT_LIST_HEAD(&noise_db->reg_list); +} + +void cl_noise_close(struct cl_hw *cl_hw) +{ + struct cl_noise_db *noise_db = &cl_hw->noise_db; + struct cl_noise_reg *elem = NULL; + struct cl_noise_reg *tmp = NULL; + + list_for_each_entry_safe(elem, tmp, &noise_db->reg_list, list) { + list_del(&elem->list); + kfree(elem); + } +} + +void cl_noise_maintenance(struct cl_hw *cl_hw) +{ + struct cl_noise_db *noise_db = &cl_hw->noise_db; + struct cl_noise_reg *reg = NULL; + u8 ch_bw = cl_hw->conf->ce_channel_bandwidth; + + if (noise_db->sample_cnt == 0) + return; + + reg = kzalloc(sizeof(*reg), GFP_ATOMIC); + + if (!reg) + return; + + /*collect statistics */ + reg->np_prim20_per_ant = riu_agcinbdpow_20_pnoisestat_get(cl_hw); + reg->np_sub20_per_chn = riu_agcinbdpownoiseper_20_stat_0_get(cl_hw); + reg->np_sec20_dens_per_ant = riu_agcinbdpowsecnoisestat_get(cl_hw); + reg->nasp_prim20_per_ant = riu_inbdpowformac_0_get(cl_hw); + reg->nasp_sub20_per_chn = riu_inbdpowformac_3_get(cl_hw); + reg->nasp_sec20_dens_per_ant = riu_inbdpowformac_2_get(cl_hw); + + if (ch_bw == CHNL_BW_160) { + reg->np_sub20_per_chn2 = riu_agcinbdpownoiseper_20_stat_1_get(cl_hw); + reg->nasp_sub20_per_chn2 = riu_inbdpowformac_4_get(cl_hw); + } + + if (cl_hw->num_antennas > MAX_ANT_PER_REG) { + reg->np_prim20_per_ant2 = riu_agcinbdpow_20_pnoisestat_2_get(cl_hw); + reg->nasp_prim20_per_ant2 = riu_inbdpowformac_1_get(cl_hw); + } + + list_add(®->list, &noise_db->reg_list); + + noise_db->sample_cnt--; + + if (noise_db->sample_cnt == 0) + pr_debug("record done\n"); +} + +int cl_noise_cli(struct cl_hw *cl_hw, struct cli_params *cli_params) +{ + struct cl_noise_db *noise_db = &cl_hw->noise_db; + bool set_ant = false; + bool hist_enable = false; + bool hist_per_channel = false; + bool hist_mac_per_channel = false; + bool hist_dens = false; + bool hist_mac_dens = false; + bool hist_pwr_print = false; + bool hist_mac_pwr_print = false; + bool hist_reset = false; + u32 param = (u32)cli_params->params[0]; + u32 expected_params = -1; + + switch (cli_params->option) { + case 'a': + set_ant = true; + expected_params = 1; + break; + case 'b': + hist_enable = true; + expected_params = 1; + break; + case 'c': + hist_per_channel = true; + expected_params = 0; + break; + case 'd': + hist_mac_per_channel = true; + expected_params = 0; + break; + case 'e': + hist_dens = true; + expected_params = 0; + break; + case 'f': + hist_mac_dens = true; + expected_params = 0; + break; + case 'g': + hist_pwr_print = true; + expected_params = 0; + break; + case 'h': + hist_mac_pwr_print = true; + expected_params = 0; + break; + case 'r': + hist_reset = true; + expected_params = 0; + break; + case '?': + return cl_noise_cli_help(cl_hw); + default: + cl_dbg_err(cl_hw, "Illegal option (%c) - try '?' for help\n", cli_params->option); + goto out_err; + } + + if (expected_params != cli_params->num_params) { + cl_dbg_err(cl_hw, "Wrong number of arguments (expected %u) (actual %u)\n", + expected_params, cli_params->num_params); + goto out_err; + } + + if (set_ant) { + cl_noise_set_ant(cl_hw, (u8)param); + + return 0; + } + + if (hist_enable) { + if (param > NOISE_MAX_SAMPLES) { + pr_err("Error! Max samples should be < %u\n", NOISE_MAX_SAMPLES); + } else { + pr_debug("%s record histogram\n", param ? "Start" : "Stop"); + noise_db->sample_cnt = param; + } + + return 0; + } + + if (hist_per_channel) + return cl_noise_print_hist_per_channel(cl_hw, false); + + if (hist_mac_per_channel) + return cl_noise_print_hist_per_channel(cl_hw, true); + + if (hist_dens) + return cl_noise_print_hist_dens(cl_hw, false); + + if (hist_mac_dens) + return cl_noise_print_hist_dens(cl_hw, true); + + if (hist_pwr_print) + return cl_noise_print_hist(cl_hw, false); + + if (hist_mac_pwr_print) + return cl_noise_print_hist(cl_hw, true); + + if (hist_reset) { + pr_debug("Clear histogram\n"); + cl_noise_close(cl_hw); + return 0; + } + +out_err: + return -EIO; +} +