From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,MIME_HEADER_CTYPE_ONLY, SPF_HELO_NONE,SPF_PASS,T_TVD_MIME_NO_HEADERS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EF6A7C432BE for ; Sat, 28 Aug 2021 21:58:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CC81860E77 for ; Sat, 28 Aug 2021 21:58:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232712AbhH1V7u (ORCPT ); Sat, 28 Aug 2021 17:59:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44852 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230253AbhH1V7q (ORCPT ); Sat, 28 Aug 2021 17:59:46 -0400 Received: from mail-ej1-x631.google.com (mail-ej1-x631.google.com [IPv6:2a00:1450:4864:20::631]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 89672C061756 for ; Sat, 28 Aug 2021 14:58:54 -0700 (PDT) Received: by mail-ej1-x631.google.com with SMTP id ia27so22008826ejc.10 for ; Sat, 28 Aug 2021 14:58:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=rG5+V2T8QRwyEqVtmTZHKDYUvURQbc0vRtEJVug+4K4=; b=eY0wJxHxO7LJAQO0Usf+6fzdjLsgi4B5NssMFVcKtM1qVF2gcgWLKfH3wYkr34xszX hDYcfDYESiDFzQh6o5Eac+KPmQqeKOoXenb+aGH4WkGjGWOPQZ0XWAiyLbSVp7ZXThiX S+/rfl0L8yc8rgnzC7R1BYqd6bVCfz+VnG9TI= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=rG5+V2T8QRwyEqVtmTZHKDYUvURQbc0vRtEJVug+4K4=; b=JEtkukwl6GN9McuERx9tqT+o4xBBl4zaywWOkm308DYxvhAni5fPZ5CMkh/Jn4IL3C 863H1a8J2ap5xw3xskOZr8bfRj0WAtYKrYqs+s98+6cu3oJvb3jSXSDx009w/krmZj1t gIYSSWVFxrTxKZNOeyqcuKaqGpKn/MMnIUVm5Ay8jSBcU2R+sGmQFGgETm6FT1N0SSp9 RJkKgmaf3/lexvcbRsaRE5Fes1vrrq8dcu8rF0HAOS4E7jgCsXdu/O5FyD/SEeg6S+29 qy4oq7HHJUp7P6sgoNb8Rx8+G8WistdxVYEAgAIByO4xsMcRik1dUKiGL5jeDDks4ELh VFiA== X-Gm-Message-State: AOAM532cl9M6UeTk/F9S6cRS3kkzWaj397r4j6XOiSO/DTXO8y6hPqL3 Ks8yakD1FDDSiNSaarx9PpLWOg== X-Google-Smtp-Source: ABdhPJw3iqUs0LkfdYqWFTR0VFE56l+W7lzMSdFMedOgtDegrsVIxsPoqPZfAUs2d9Q/RlJuAWQ0WA== X-Received: by 2002:a17:906:3699:: with SMTP id a25mr16624005ejc.452.1630187932577; Sat, 28 Aug 2021 14:58:52 -0700 (PDT) Received: from localhost.swdvt.lab.broadcom.net ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id cf11sm5361239edb.65.2021.08.28.14.58.50 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sat, 28 Aug 2021 14:58:52 -0700 (PDT) From: Michael Chan To: davem@davemloft.net Cc: netdev@vger.kernel.org, kuba@kernel.org, edwin.peer@broadcom.com, gospo@broadcom.com Subject: [PATCH net-next 03/11] bnxt_en: move HWRM API implementation into separate file Date: Sat, 28 Aug 2021 17:58:22 -0400 Message-Id: <1630187910-22252-4-git-send-email-michael.chan@broadcom.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1630187910-22252-1-git-send-email-michael.chan@broadcom.com> References: <1630187910-22252-1-git-send-email-michael.chan@broadcom.com> Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="000000000000aee2e205caa5b4c7" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org --000000000000aee2e205caa5b4c7 From: Edwin Peer Move all firmware messaging functions and definitions to new bnxt_hwrm.[ch]. The follow-on patches will make major modifications to these APIs. Signed-off-by: Edwin Peer Signed-off-by: Michael Chan --- drivers/net/ethernet/broadcom/bnxt/Makefile | 2 +- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 273 +--------------- drivers/net/ethernet/broadcom/bnxt/bnxt.h | 84 ----- drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c | 1 + .../net/ethernet/broadcom/bnxt/bnxt_devlink.c | 1 + .../net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 1 + .../net/ethernet/broadcom/bnxt/bnxt_hwrm.c | 298 ++++++++++++++++++ .../net/ethernet/broadcom/bnxt/bnxt_hwrm.h | 100 ++++++ drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c | 1 + .../net/ethernet/broadcom/bnxt/bnxt_sriov.c | 1 + drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c | 1 + drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c | 1 + drivers/net/ethernet/broadcom/bnxt/bnxt_vfr.c | 1 + 13 files changed, 408 insertions(+), 357 deletions(-) create mode 100644 drivers/net/ethernet/broadcom/bnxt/bnxt_hwrm.c create mode 100644 drivers/net/ethernet/broadcom/bnxt/bnxt_hwrm.h diff --git a/drivers/net/ethernet/broadcom/bnxt/Makefile b/drivers/net/ethernet/broadcom/bnxt/Makefile index 2b8ae687b3c1..c6ef7ec2c115 100644 --- a/drivers/net/ethernet/broadcom/bnxt/Makefile +++ b/drivers/net/ethernet/broadcom/bnxt/Makefile @@ -1,6 +1,6 @@ # SPDX-License-Identifier: GPL-2.0-only obj-$(CONFIG_BNXT) += bnxt_en.o -bnxt_en-y := bnxt.o bnxt_sriov.o bnxt_ethtool.o bnxt_dcb.o bnxt_ulp.o bnxt_xdp.o bnxt_ptp.o bnxt_vfr.o bnxt_devlink.o bnxt_dim.o +bnxt_en-y := bnxt.o bnxt_hwrm.o bnxt_sriov.o bnxt_ethtool.o bnxt_dcb.o bnxt_ulp.o bnxt_xdp.o bnxt_ptp.o bnxt_vfr.o bnxt_devlink.o bnxt_dim.o bnxt_en-$(CONFIG_BNXT_FLOWER_OFFLOAD) += bnxt_tc.o bnxt_en-$(CONFIG_DEBUG_FS) += bnxt_debugfs.o diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index dd2f80c394f5..10c39801ad5f 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -60,6 +60,7 @@ #include "bnxt_hsi.h" #include "bnxt.h" +#include "bnxt_hwrm.h" #include "bnxt_ulp.h" #include "bnxt_sriov.h" #include "bnxt_ethtool.h" @@ -4549,278 +4550,6 @@ static void bnxt_enable_int(struct bnxt *bp) } } -void bnxt_hwrm_cmd_hdr_init(struct bnxt *bp, void *request, u16 req_type, - u16 cmpl_ring, u16 target_id) -{ - struct input *req = request; - - req->req_type = cpu_to_le16(req_type); - req->cmpl_ring = cpu_to_le16(cmpl_ring); - req->target_id = cpu_to_le16(target_id); - req->resp_addr = cpu_to_le64(bp->hwrm_cmd_resp_dma_addr); -} - -static int bnxt_hwrm_to_stderr(u32 hwrm_err) -{ - switch (hwrm_err) { - case HWRM_ERR_CODE_SUCCESS: - return 0; - case HWRM_ERR_CODE_RESOURCE_LOCKED: - return -EROFS; - case HWRM_ERR_CODE_RESOURCE_ACCESS_DENIED: - return -EACCES; - case HWRM_ERR_CODE_RESOURCE_ALLOC_ERROR: - return -ENOSPC; - case HWRM_ERR_CODE_INVALID_PARAMS: - case HWRM_ERR_CODE_INVALID_FLAGS: - case HWRM_ERR_CODE_INVALID_ENABLES: - case HWRM_ERR_CODE_UNSUPPORTED_TLV: - case HWRM_ERR_CODE_UNSUPPORTED_OPTION_ERR: - return -EINVAL; - case HWRM_ERR_CODE_NO_BUFFER: - return -ENOMEM; - case HWRM_ERR_CODE_HOT_RESET_PROGRESS: - case HWRM_ERR_CODE_BUSY: - return -EAGAIN; - case HWRM_ERR_CODE_CMD_NOT_SUPPORTED: - return -EOPNOTSUPP; - default: - return -EIO; - } -} - -static int bnxt_hwrm_do_send_msg(struct bnxt *bp, void *msg, u32 msg_len, - int timeout, bool silent) -{ - int i, intr_process, rc, tmo_count; - struct input *req = msg; - u32 *data = msg; - u8 *valid; - u16 cp_ring_id, len = 0; - struct hwrm_err_output *resp = bp->hwrm_cmd_resp_addr; - u16 max_req_len = BNXT_HWRM_MAX_REQ_LEN; - struct hwrm_short_input short_input = {0}; - u32 doorbell_offset = BNXT_GRCPF_REG_CHIMP_COMM_TRIGGER; - u32 bar_offset = BNXT_GRCPF_REG_CHIMP_COMM; - u16 dst = BNXT_HWRM_CHNL_CHIMP; - - if (BNXT_NO_FW_ACCESS(bp) && - le16_to_cpu(req->req_type) != HWRM_FUNC_RESET) - return -EBUSY; - - if (msg_len > BNXT_HWRM_MAX_REQ_LEN) { - if (msg_len > bp->hwrm_max_ext_req_len || - !bp->hwrm_short_cmd_req_addr) - return -EINVAL; - } - - if (bnxt_kong_hwrm_message(bp, req)) { - dst = BNXT_HWRM_CHNL_KONG; - bar_offset = BNXT_GRCPF_REG_KONG_COMM; - doorbell_offset = BNXT_GRCPF_REG_KONG_COMM_TRIGGER; - } - - memset(resp, 0, PAGE_SIZE); - cp_ring_id = le16_to_cpu(req->cmpl_ring); - intr_process = (cp_ring_id == INVALID_HW_RING_ID) ? 0 : 1; - - req->seq_id = cpu_to_le16(bnxt_get_hwrm_seq_id(bp, dst)); - /* currently supports only one outstanding message */ - if (intr_process) - bp->hwrm_intr_seq_id = le16_to_cpu(req->seq_id); - - if ((bp->fw_cap & BNXT_FW_CAP_SHORT_CMD) || - msg_len > BNXT_HWRM_MAX_REQ_LEN) { - void *short_cmd_req = bp->hwrm_short_cmd_req_addr; - u16 max_msg_len; - - /* Set boundary for maximum extended request length for short - * cmd format. If passed up from device use the max supported - * internal req length. - */ - max_msg_len = bp->hwrm_max_ext_req_len; - - memcpy(short_cmd_req, req, msg_len); - if (msg_len < max_msg_len) - memset(short_cmd_req + msg_len, 0, - max_msg_len - msg_len); - - short_input.req_type = req->req_type; - short_input.signature = - cpu_to_le16(SHORT_REQ_SIGNATURE_SHORT_CMD); - short_input.size = cpu_to_le16(msg_len); - short_input.req_addr = - cpu_to_le64(bp->hwrm_short_cmd_req_dma_addr); - - data = (u32 *)&short_input; - msg_len = sizeof(short_input); - - /* Sync memory write before updating doorbell */ - wmb(); - - max_req_len = BNXT_HWRM_SHORT_REQ_LEN; - } - - /* Write request msg to hwrm channel */ - __iowrite32_copy(bp->bar0 + bar_offset, data, msg_len / 4); - - for (i = msg_len; i < max_req_len; i += 4) - writel(0, bp->bar0 + bar_offset + i); - - /* Ring channel doorbell */ - writel(1, bp->bar0 + doorbell_offset); - - if (!pci_is_enabled(bp->pdev)) - return -ENODEV; - - if (!timeout) - timeout = DFLT_HWRM_CMD_TIMEOUT; - /* Limit timeout to an upper limit */ - timeout = min(timeout, HWRM_CMD_MAX_TIMEOUT); - /* convert timeout to usec */ - timeout *= 1000; - - i = 0; - /* Short timeout for the first few iterations: - * number of loops = number of loops for short timeout + - * number of loops for standard timeout. - */ - tmo_count = HWRM_SHORT_TIMEOUT_COUNTER; - timeout = timeout - HWRM_SHORT_MIN_TIMEOUT * HWRM_SHORT_TIMEOUT_COUNTER; - tmo_count += DIV_ROUND_UP(timeout, HWRM_MIN_TIMEOUT); - - if (intr_process) { - u16 seq_id = bp->hwrm_intr_seq_id; - - /* Wait until hwrm response cmpl interrupt is processed */ - while (bp->hwrm_intr_seq_id != (u16)~seq_id && - i++ < tmo_count) { - /* Abort the wait for completion if the FW health - * check has failed. - */ - if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state)) - return -EBUSY; - /* on first few passes, just barely sleep */ - if (i < HWRM_SHORT_TIMEOUT_COUNTER) { - usleep_range(HWRM_SHORT_MIN_TIMEOUT, - HWRM_SHORT_MAX_TIMEOUT); - } else { - if (HWRM_WAIT_MUST_ABORT(bp, req)) - break; - usleep_range(HWRM_MIN_TIMEOUT, - HWRM_MAX_TIMEOUT); - } - } - - if (bp->hwrm_intr_seq_id != (u16)~seq_id) { - if (!silent) - netdev_err(bp->dev, "Resp cmpl intr err msg: 0x%x\n", - le16_to_cpu(req->req_type)); - return -EBUSY; - } - len = le16_to_cpu(resp->resp_len); - valid = ((u8 *)resp) + len - 1; - } else { - int j; - - /* Check if response len is updated */ - for (i = 0; i < tmo_count; i++) { - /* Abort the wait for completion if the FW health - * check has failed. - */ - if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state)) - return -EBUSY; - len = le16_to_cpu(resp->resp_len); - if (len) - break; - /* on first few passes, just barely sleep */ - if (i < HWRM_SHORT_TIMEOUT_COUNTER) { - usleep_range(HWRM_SHORT_MIN_TIMEOUT, - HWRM_SHORT_MAX_TIMEOUT); - } else { - if (HWRM_WAIT_MUST_ABORT(bp, req)) - goto timeout_abort; - usleep_range(HWRM_MIN_TIMEOUT, - HWRM_MAX_TIMEOUT); - } - } - - if (i >= tmo_count) { -timeout_abort: - if (!silent) - netdev_err(bp->dev, "Error (timeout: %d) msg {0x%x 0x%x} len:%d\n", - HWRM_TOTAL_TIMEOUT(i), - le16_to_cpu(req->req_type), - le16_to_cpu(req->seq_id), len); - return -EBUSY; - } - - /* Last byte of resp contains valid bit */ - valid = ((u8 *)resp) + len - 1; - for (j = 0; j < HWRM_VALID_BIT_DELAY_USEC; j++) { - /* make sure we read from updated DMA memory */ - dma_rmb(); - if (*valid) - break; - usleep_range(1, 5); - } - - if (j >= HWRM_VALID_BIT_DELAY_USEC) { - if (!silent) - netdev_err(bp->dev, "Error (timeout: %d) msg {0x%x 0x%x} len:%d v:%d\n", - HWRM_TOTAL_TIMEOUT(i), - le16_to_cpu(req->req_type), - le16_to_cpu(req->seq_id), len, - *valid); - return -EBUSY; - } - } - - /* Zero valid bit for compatibility. Valid bit in an older spec - * may become a new field in a newer spec. We must make sure that - * a new field not implemented by old spec will read zero. - */ - *valid = 0; - rc = le16_to_cpu(resp->error_code); - if (rc && !silent) - netdev_err(bp->dev, "hwrm req_type 0x%x seq id 0x%x error 0x%x\n", - le16_to_cpu(resp->req_type), - le16_to_cpu(resp->seq_id), rc); - return bnxt_hwrm_to_stderr(rc); -} - -int _hwrm_send_message(struct bnxt *bp, void *msg, u32 msg_len, int timeout) -{ - return bnxt_hwrm_do_send_msg(bp, msg, msg_len, timeout, false); -} - -int _hwrm_send_message_silent(struct bnxt *bp, void *msg, u32 msg_len, - int timeout) -{ - return bnxt_hwrm_do_send_msg(bp, msg, msg_len, timeout, true); -} - -int hwrm_send_message(struct bnxt *bp, void *msg, u32 msg_len, int timeout) -{ - int rc; - - mutex_lock(&bp->hwrm_cmd_lock); - rc = _hwrm_send_message(bp, msg, msg_len, timeout); - mutex_unlock(&bp->hwrm_cmd_lock); - return rc; -} - -int hwrm_send_message_silent(struct bnxt *bp, void *msg, u32 msg_len, - int timeout) -{ - int rc; - - mutex_lock(&bp->hwrm_cmd_lock); - rc = bnxt_hwrm_do_send_msg(bp, msg, msg_len, timeout, true); - mutex_unlock(&bp->hwrm_cmd_lock); - return rc; -} - int bnxt_hwrm_func_drv_rgtr(struct bnxt *bp, unsigned long *bmap, int bmap_size, bool async_only) { diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index a4fb1aa12b24..5ff71eeffdd8 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -669,37 +669,7 @@ struct nqe_cn { #define RING_CMP(idx) ((idx) & bp->cp_ring_mask) #define NEXT_CMP(idx) RING_CMP(ADV_RAW_CMP(idx, 1)) -#define BNXT_HWRM_MAX_REQ_LEN (bp->hwrm_max_req_len) -#define BNXT_HWRM_SHORT_REQ_LEN sizeof(struct hwrm_short_input) #define DFLT_HWRM_CMD_TIMEOUT 500 -#define HWRM_CMD_MAX_TIMEOUT 40000 -#define SHORT_HWRM_CMD_TIMEOUT 20 -#define HWRM_CMD_TIMEOUT (bp->hwrm_cmd_timeout) -#define HWRM_RESET_TIMEOUT ((HWRM_CMD_TIMEOUT) * 4) -#define HWRM_COREDUMP_TIMEOUT ((HWRM_CMD_TIMEOUT) * 12) -#define BNXT_HWRM_REQ_MAX_SIZE 128 -#define BNXT_HWRM_REQS_PER_PAGE (BNXT_PAGE_SIZE / \ - BNXT_HWRM_REQ_MAX_SIZE) -#define HWRM_SHORT_MIN_TIMEOUT 3 -#define HWRM_SHORT_MAX_TIMEOUT 10 -#define HWRM_SHORT_TIMEOUT_COUNTER 5 - -#define HWRM_MIN_TIMEOUT 25 -#define HWRM_MAX_TIMEOUT 40 - -#define HWRM_WAIT_MUST_ABORT(bp, req) \ - (le16_to_cpu((req)->req_type) != HWRM_VER_GET && \ - !bnxt_is_fw_healthy(bp)) - -#define HWRM_TOTAL_TIMEOUT(n) (((n) <= HWRM_SHORT_TIMEOUT_COUNTER) ? \ - ((n) * HWRM_SHORT_MIN_TIMEOUT) : \ - (HWRM_SHORT_TIMEOUT_COUNTER * HWRM_SHORT_MIN_TIMEOUT + \ - ((n) - HWRM_SHORT_TIMEOUT_COUNTER) * HWRM_MIN_TIMEOUT)) - -#define HWRM_VALID_BIT_DELAY_USEC 150 - -#define BNXT_HWRM_CHNL_CHIMP 0 -#define BNXT_HWRM_CHNL_KONG 1 #define BNXT_RX_EVENT 1 #define BNXT_AGG_EVENT 2 @@ -2185,55 +2155,6 @@ static inline void bnxt_db_write(struct bnxt *bp, struct bnxt_db_info *db, } } -static inline bool bnxt_cfa_hwrm_message(u16 req_type) -{ - switch (req_type) { - case HWRM_CFA_ENCAP_RECORD_ALLOC: - case HWRM_CFA_ENCAP_RECORD_FREE: - case HWRM_CFA_DECAP_FILTER_ALLOC: - case HWRM_CFA_DECAP_FILTER_FREE: - case HWRM_CFA_EM_FLOW_ALLOC: - case HWRM_CFA_EM_FLOW_FREE: - case HWRM_CFA_EM_FLOW_CFG: - case HWRM_CFA_FLOW_ALLOC: - case HWRM_CFA_FLOW_FREE: - case HWRM_CFA_FLOW_INFO: - case HWRM_CFA_FLOW_FLUSH: - case HWRM_CFA_FLOW_STATS: - case HWRM_CFA_METER_PROFILE_ALLOC: - case HWRM_CFA_METER_PROFILE_FREE: - case HWRM_CFA_METER_PROFILE_CFG: - case HWRM_CFA_METER_INSTANCE_ALLOC: - case HWRM_CFA_METER_INSTANCE_FREE: - return true; - default: - return false; - } -} - -static inline bool bnxt_kong_hwrm_message(struct bnxt *bp, struct input *req) -{ - return (bp->fw_cap & BNXT_FW_CAP_KONG_MB_CHNL && - (bnxt_cfa_hwrm_message(le16_to_cpu(req->req_type)) || - le16_to_cpu(req->target_id) == HWRM_TARGET_ID_KONG)); -} - -static inline void *bnxt_get_hwrm_resp_addr(struct bnxt *bp, void *req) -{ - return bp->hwrm_cmd_resp_addr; -} - -static inline u16 bnxt_get_hwrm_seq_id(struct bnxt *bp, u16 dst) -{ - u16 seq_id; - - if (dst == BNXT_HWRM_CHNL_CHIMP) - seq_id = bp->hwrm_cmd_seq++; - else - seq_id = bp->hwrm_cmd_kong_seq++; - return seq_id; -} - extern const u16 bnxt_lhint_arr[]; int bnxt_alloc_rx_data(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, @@ -2243,11 +2164,6 @@ u32 bnxt_fw_health_readl(struct bnxt *bp, int reg_idx); void bnxt_set_tpa_flags(struct bnxt *bp); void bnxt_set_ring_params(struct bnxt *); int bnxt_set_rx_skb_mode(struct bnxt *bp, bool page_mode); -void bnxt_hwrm_cmd_hdr_init(struct bnxt *, void *, u16, u16, u16); -int _hwrm_send_message(struct bnxt *, void *, u32, int); -int _hwrm_send_message_silent(struct bnxt *bp, void *msg, u32 len, int timeout); -int hwrm_send_message(struct bnxt *, void *, u32, int); -int hwrm_send_message_silent(struct bnxt *, void *, u32, int); int bnxt_hwrm_func_drv_rgtr(struct bnxt *bp, unsigned long *bmap, int bmap_size, bool async_only); int bnxt_get_nr_rss_ctxs(struct bnxt *bp, int rx_rings); diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c index 8a68df4d9e59..df898665763a 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c @@ -18,6 +18,7 @@ #include #include "bnxt_hsi.h" #include "bnxt.h" +#include "bnxt_hwrm.h" #include "bnxt_dcb.h" #ifdef CONFIG_BNXT_DCB diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c index 2cd8bb37e641..00b284a028c5 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c @@ -12,6 +12,7 @@ #include #include "bnxt_hsi.h" #include "bnxt.h" +#include "bnxt_hwrm.h" #include "bnxt_vfr.h" #include "bnxt_devlink.h" #include "bnxt_ethtool.h" diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c index 5852ae3b26a2..b6aaf14bd7fd 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c @@ -24,6 +24,7 @@ #include #include "bnxt_hsi.h" #include "bnxt.h" +#include "bnxt_hwrm.h" #include "bnxt_xdp.h" #include "bnxt_ptp.h" #include "bnxt_ethtool.h" diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_hwrm.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_hwrm.c new file mode 100644 index 000000000000..6a1d8d619397 --- /dev/null +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_hwrm.c @@ -0,0 +1,298 @@ +/* Broadcom NetXtreme-C/E network driver. + * + * Copyright (c) 2020 Broadcom Limited + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "bnxt_hsi.h" +#include "bnxt.h" +#include "bnxt_hwrm.h" + +void bnxt_hwrm_cmd_hdr_init(struct bnxt *bp, void *request, u16 req_type, + u16 cmpl_ring, u16 target_id) +{ + struct input *req = request; + + req->req_type = cpu_to_le16(req_type); + req->cmpl_ring = cpu_to_le16(cmpl_ring); + req->target_id = cpu_to_le16(target_id); + req->resp_addr = cpu_to_le64(bp->hwrm_cmd_resp_dma_addr); +} + +static int bnxt_hwrm_to_stderr(u32 hwrm_err) +{ + switch (hwrm_err) { + case HWRM_ERR_CODE_SUCCESS: + return 0; + case HWRM_ERR_CODE_RESOURCE_LOCKED: + return -EROFS; + case HWRM_ERR_CODE_RESOURCE_ACCESS_DENIED: + return -EACCES; + case HWRM_ERR_CODE_RESOURCE_ALLOC_ERROR: + return -ENOSPC; + case HWRM_ERR_CODE_INVALID_PARAMS: + case HWRM_ERR_CODE_INVALID_FLAGS: + case HWRM_ERR_CODE_INVALID_ENABLES: + case HWRM_ERR_CODE_UNSUPPORTED_TLV: + case HWRM_ERR_CODE_UNSUPPORTED_OPTION_ERR: + return -EINVAL; + case HWRM_ERR_CODE_NO_BUFFER: + return -ENOMEM; + case HWRM_ERR_CODE_HOT_RESET_PROGRESS: + case HWRM_ERR_CODE_BUSY: + return -EAGAIN; + case HWRM_ERR_CODE_CMD_NOT_SUPPORTED: + return -EOPNOTSUPP; + default: + return -EIO; + } +} + +static int bnxt_hwrm_do_send_msg(struct bnxt *bp, void *msg, u32 msg_len, + int timeout, bool silent) +{ + int i, intr_process, rc, tmo_count; + struct input *req = msg; + u32 *data = msg; + u8 *valid; + u16 cp_ring_id, len = 0; + struct hwrm_err_output *resp = bp->hwrm_cmd_resp_addr; + u16 max_req_len = BNXT_HWRM_MAX_REQ_LEN; + struct hwrm_short_input short_input = {0}; + u32 doorbell_offset = BNXT_GRCPF_REG_CHIMP_COMM_TRIGGER; + u32 bar_offset = BNXT_GRCPF_REG_CHIMP_COMM; + u16 dst = BNXT_HWRM_CHNL_CHIMP; + + if (BNXT_NO_FW_ACCESS(bp) && + le16_to_cpu(req->req_type) != HWRM_FUNC_RESET) + return -EBUSY; + + if (msg_len > BNXT_HWRM_MAX_REQ_LEN) { + if (msg_len > bp->hwrm_max_ext_req_len || + !bp->hwrm_short_cmd_req_addr) + return -EINVAL; + } + + if (bnxt_kong_hwrm_message(bp, req)) { + dst = BNXT_HWRM_CHNL_KONG; + bar_offset = BNXT_GRCPF_REG_KONG_COMM; + doorbell_offset = BNXT_GRCPF_REG_KONG_COMM_TRIGGER; + } + + memset(resp, 0, PAGE_SIZE); + cp_ring_id = le16_to_cpu(req->cmpl_ring); + intr_process = (cp_ring_id == INVALID_HW_RING_ID) ? 0 : 1; + + req->seq_id = cpu_to_le16(bnxt_get_hwrm_seq_id(bp, dst)); + /* currently supports only one outstanding message */ + if (intr_process) + bp->hwrm_intr_seq_id = le16_to_cpu(req->seq_id); + + if ((bp->fw_cap & BNXT_FW_CAP_SHORT_CMD) || + msg_len > BNXT_HWRM_MAX_REQ_LEN) { + void *short_cmd_req = bp->hwrm_short_cmd_req_addr; + u16 max_msg_len; + + /* Set boundary for maximum extended request length for short + * cmd format. If passed up from device use the max supported + * internal req length. + */ + max_msg_len = bp->hwrm_max_ext_req_len; + + memcpy(short_cmd_req, req, msg_len); + if (msg_len < max_msg_len) + memset(short_cmd_req + msg_len, 0, + max_msg_len - msg_len); + + short_input.req_type = req->req_type; + short_input.signature = + cpu_to_le16(SHORT_REQ_SIGNATURE_SHORT_CMD); + short_input.size = cpu_to_le16(msg_len); + short_input.req_addr = + cpu_to_le64(bp->hwrm_short_cmd_req_dma_addr); + + data = (u32 *)&short_input; + msg_len = sizeof(short_input); + + /* Sync memory write before updating doorbell */ + wmb(); + + max_req_len = BNXT_HWRM_SHORT_REQ_LEN; + } + + /* Write request msg to hwrm channel */ + __iowrite32_copy(bp->bar0 + bar_offset, data, msg_len / 4); + + for (i = msg_len; i < max_req_len; i += 4) + writel(0, bp->bar0 + bar_offset + i); + + /* Ring channel doorbell */ + writel(1, bp->bar0 + doorbell_offset); + + if (!pci_is_enabled(bp->pdev)) + return -ENODEV; + + if (!timeout) + timeout = DFLT_HWRM_CMD_TIMEOUT; + /* Limit timeout to an upper limit */ + timeout = min(timeout, HWRM_CMD_MAX_TIMEOUT); + /* convert timeout to usec */ + timeout *= 1000; + + i = 0; + /* Short timeout for the first few iterations: + * number of loops = number of loops for short timeout + + * number of loops for standard timeout. + */ + tmo_count = HWRM_SHORT_TIMEOUT_COUNTER; + timeout = timeout - HWRM_SHORT_MIN_TIMEOUT * HWRM_SHORT_TIMEOUT_COUNTER; + tmo_count += DIV_ROUND_UP(timeout, HWRM_MIN_TIMEOUT); + + if (intr_process) { + u16 seq_id = bp->hwrm_intr_seq_id; + + /* Wait until hwrm response cmpl interrupt is processed */ + while (bp->hwrm_intr_seq_id != (u16)~seq_id && + i++ < tmo_count) { + /* Abort the wait for completion if the FW health + * check has failed. + */ + if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state)) + return -EBUSY; + /* on first few passes, just barely sleep */ + if (i < HWRM_SHORT_TIMEOUT_COUNTER) { + usleep_range(HWRM_SHORT_MIN_TIMEOUT, + HWRM_SHORT_MAX_TIMEOUT); + } else { + if (HWRM_WAIT_MUST_ABORT(bp, req)) + break; + usleep_range(HWRM_MIN_TIMEOUT, + HWRM_MAX_TIMEOUT); + } + } + + if (bp->hwrm_intr_seq_id != (u16)~seq_id) { + if (!silent) + netdev_err(bp->dev, "Resp cmpl intr err msg: 0x%x\n", + le16_to_cpu(req->req_type)); + return -EBUSY; + } + len = le16_to_cpu(resp->resp_len); + valid = ((u8 *)resp) + len - 1; + } else { + int j; + + /* Check if response len is updated */ + for (i = 0; i < tmo_count; i++) { + /* Abort the wait for completion if the FW health + * check has failed. + */ + if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state)) + return -EBUSY; + len = le16_to_cpu(resp->resp_len); + if (len) + break; + /* on first few passes, just barely sleep */ + if (i < HWRM_SHORT_TIMEOUT_COUNTER) { + usleep_range(HWRM_SHORT_MIN_TIMEOUT, + HWRM_SHORT_MAX_TIMEOUT); + } else { + if (HWRM_WAIT_MUST_ABORT(bp, req)) + goto timeout_abort; + usleep_range(HWRM_MIN_TIMEOUT, + HWRM_MAX_TIMEOUT); + } + } + + if (i >= tmo_count) { +timeout_abort: + if (!silent) + netdev_err(bp->dev, "Error (timeout: %d) msg {0x%x 0x%x} len:%d\n", + HWRM_TOTAL_TIMEOUT(i), + le16_to_cpu(req->req_type), + le16_to_cpu(req->seq_id), len); + return -EBUSY; + } + + /* Last byte of resp contains valid bit */ + valid = ((u8 *)resp) + len - 1; + for (j = 0; j < HWRM_VALID_BIT_DELAY_USEC; j++) { + /* make sure we read from updated DMA memory */ + dma_rmb(); + if (*valid) + break; + usleep_range(1, 5); + } + + if (j >= HWRM_VALID_BIT_DELAY_USEC) { + if (!silent) + netdev_err(bp->dev, "Error (timeout: %d) msg {0x%x 0x%x} len:%d v:%d\n", + HWRM_TOTAL_TIMEOUT(i), + le16_to_cpu(req->req_type), + le16_to_cpu(req->seq_id), len, + *valid); + return -EBUSY; + } + } + + /* Zero valid bit for compatibility. Valid bit in an older spec + * may become a new field in a newer spec. We must make sure that + * a new field not implemented by old spec will read zero. + */ + *valid = 0; + rc = le16_to_cpu(resp->error_code); + if (rc && !silent) + netdev_err(bp->dev, "hwrm req_type 0x%x seq id 0x%x error 0x%x\n", + le16_to_cpu(resp->req_type), + le16_to_cpu(resp->seq_id), rc); + return bnxt_hwrm_to_stderr(rc); +} + +int _hwrm_send_message(struct bnxt *bp, void *msg, u32 msg_len, int timeout) +{ + return bnxt_hwrm_do_send_msg(bp, msg, msg_len, timeout, false); +} + +int _hwrm_send_message_silent(struct bnxt *bp, void *msg, u32 msg_len, + int timeout) +{ + return bnxt_hwrm_do_send_msg(bp, msg, msg_len, timeout, true); +} + +int hwrm_send_message(struct bnxt *bp, void *msg, u32 msg_len, int timeout) +{ + int rc; + + mutex_lock(&bp->hwrm_cmd_lock); + rc = _hwrm_send_message(bp, msg, msg_len, timeout); + mutex_unlock(&bp->hwrm_cmd_lock); + return rc; +} + +int hwrm_send_message_silent(struct bnxt *bp, void *msg, u32 msg_len, + int timeout) +{ + int rc; + + mutex_lock(&bp->hwrm_cmd_lock); + rc = bnxt_hwrm_do_send_msg(bp, msg, msg_len, timeout, true); + mutex_unlock(&bp->hwrm_cmd_lock); + return rc; +} + diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_hwrm.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_hwrm.h new file mode 100644 index 000000000000..940c792b54c7 --- /dev/null +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_hwrm.h @@ -0,0 +1,100 @@ +/* Broadcom NetXtreme-C/E network driver. + * + * Copyright (c) 2020 Broadcom Limited + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation. + */ + +#ifndef BNXT_HWRM_H +#define BNXT_HWRM_H + +#include "bnxt_hsi.h" + +#define BNXT_HWRM_MAX_REQ_LEN (bp->hwrm_max_req_len) +#define BNXT_HWRM_SHORT_REQ_LEN sizeof(struct hwrm_short_input) +#define HWRM_CMD_MAX_TIMEOUT 40000 +#define SHORT_HWRM_CMD_TIMEOUT 20 +#define HWRM_CMD_TIMEOUT (bp->hwrm_cmd_timeout) +#define HWRM_RESET_TIMEOUT ((HWRM_CMD_TIMEOUT) * 4) +#define HWRM_COREDUMP_TIMEOUT ((HWRM_CMD_TIMEOUT) * 12) +#define BNXT_HWRM_REQ_MAX_SIZE 128 +#define BNXT_HWRM_REQS_PER_PAGE (BNXT_PAGE_SIZE / \ + BNXT_HWRM_REQ_MAX_SIZE) +#define HWRM_SHORT_MIN_TIMEOUT 3 +#define HWRM_SHORT_MAX_TIMEOUT 10 +#define HWRM_SHORT_TIMEOUT_COUNTER 5 + +#define HWRM_MIN_TIMEOUT 25 +#define HWRM_MAX_TIMEOUT 40 + +#define HWRM_WAIT_MUST_ABORT(bp, req) \ + (le16_to_cpu((req)->req_type) != HWRM_VER_GET && \ + !bnxt_is_fw_healthy(bp)) + +#define HWRM_TOTAL_TIMEOUT(n) (((n) <= HWRM_SHORT_TIMEOUT_COUNTER) ? \ + ((n) * HWRM_SHORT_MIN_TIMEOUT) : \ + (HWRM_SHORT_TIMEOUT_COUNTER * HWRM_SHORT_MIN_TIMEOUT + \ + ((n) - HWRM_SHORT_TIMEOUT_COUNTER) * HWRM_MIN_TIMEOUT)) + +#define HWRM_VALID_BIT_DELAY_USEC 150 + +#define BNXT_HWRM_CHNL_CHIMP 0 +#define BNXT_HWRM_CHNL_KONG 1 + +static inline bool bnxt_cfa_hwrm_message(u16 req_type) +{ + switch (req_type) { + case HWRM_CFA_ENCAP_RECORD_ALLOC: + case HWRM_CFA_ENCAP_RECORD_FREE: + case HWRM_CFA_DECAP_FILTER_ALLOC: + case HWRM_CFA_DECAP_FILTER_FREE: + case HWRM_CFA_EM_FLOW_ALLOC: + case HWRM_CFA_EM_FLOW_FREE: + case HWRM_CFA_EM_FLOW_CFG: + case HWRM_CFA_FLOW_ALLOC: + case HWRM_CFA_FLOW_FREE: + case HWRM_CFA_FLOW_INFO: + case HWRM_CFA_FLOW_FLUSH: + case HWRM_CFA_FLOW_STATS: + case HWRM_CFA_METER_PROFILE_ALLOC: + case HWRM_CFA_METER_PROFILE_FREE: + case HWRM_CFA_METER_PROFILE_CFG: + case HWRM_CFA_METER_INSTANCE_ALLOC: + case HWRM_CFA_METER_INSTANCE_FREE: + return true; + default: + return false; + } +} + +static inline bool bnxt_kong_hwrm_message(struct bnxt *bp, struct input *req) +{ + return (bp->fw_cap & BNXT_FW_CAP_KONG_MB_CHNL && + (bnxt_cfa_hwrm_message(le16_to_cpu(req->req_type)) || + le16_to_cpu(req->target_id) == HWRM_TARGET_ID_KONG)); +} + +static inline void *bnxt_get_hwrm_resp_addr(struct bnxt *bp, void *req) +{ + return bp->hwrm_cmd_resp_addr; +} + +static inline u16 bnxt_get_hwrm_seq_id(struct bnxt *bp, u16 dst) +{ + u16 seq_id; + + if (dst == BNXT_HWRM_CHNL_CHIMP) + seq_id = bp->hwrm_cmd_seq++; + else + seq_id = bp->hwrm_cmd_kong_seq++; + return seq_id; +} + +void bnxt_hwrm_cmd_hdr_init(struct bnxt *, void *, u16, u16, u16); +int _hwrm_send_message(struct bnxt *bp, void *msg, u32 len, int timeout); +int _hwrm_send_message_silent(struct bnxt *bp, void *msg, u32 len, int timeout); +int hwrm_send_message(struct bnxt *bp, void *msg, u32 len, int timeout); +int hwrm_send_message_silent(struct bnxt *bp, void *msg, u32 len, int timeout); +#endif diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c index 2fe3c9081f8d..4cc2379027cf 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c @@ -18,6 +18,7 @@ #include #include "bnxt_hsi.h" #include "bnxt.h" +#include "bnxt_hwrm.h" #include "bnxt_ptp.h" int bnxt_ptp_parse(struct sk_buff *skb, u16 *seq_id, u16 *hdr_off) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c index 7fa881e1cd80..7b0e308e44c2 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c @@ -17,6 +17,7 @@ #include #include "bnxt_hsi.h" #include "bnxt.h" +#include "bnxt_hwrm.h" #include "bnxt_ulp.h" #include "bnxt_sriov.h" #include "bnxt_vfr.h" diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c index 5e4429b14b8c..c0c3cc426f7b 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c @@ -22,6 +22,7 @@ #include "bnxt_hsi.h" #include "bnxt.h" +#include "bnxt_hwrm.h" #include "bnxt_sriov.h" #include "bnxt_tc.h" #include "bnxt_vfr.h" diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c index 187ff643ad2a..f621cffccd3a 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c @@ -22,6 +22,7 @@ #include "bnxt_hsi.h" #include "bnxt.h" +#include "bnxt_hwrm.h" #include "bnxt_ulp.h" static int bnxt_register_dev(struct bnxt_en_dev *edev, int ulp_id, diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_vfr.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_vfr.c index dd66302343a2..3ed712a08207 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_vfr.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_vfr.c @@ -15,6 +15,7 @@ #include "bnxt_hsi.h" #include "bnxt.h" +#include "bnxt_hwrm.h" #include "bnxt_vfr.h" #include "bnxt_devlink.h" #include "bnxt_tc.h" -- 2.18.1 --000000000000aee2e205caa5b4c7 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIIQbQYJKoZIhvcNAQcCoIIQXjCCEFoCAQExDzANBglghkgBZQMEAgEFADALBgkqhkiG9w0BBwGg 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