From patchwork Fri Sep 27 18:46:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Karan Tilak Kumar X-Patchwork-Id: 831273 Received: from rcdn-iport-3.cisco.com (rcdn-iport-3.cisco.com [173.37.86.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8E0EA1C1AA6; Fri, 27 Sep 2024 18:49:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=173.37.86.74 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727462956; cv=none; b=Yx5H1tqmIbUHUE5g7EVSHCjxjKf8h06HFspl+/OfgerQ+zdpXfqsCTZzvNsVGVhxG82mksEkb3z05Mk120LOFJEX4Z6/54q0g73NC2KfAEjzDs60GVKiVD4uSIKdovVQTzjmNbz89j0zDu1i0ME40WU8Vg0SuKqZQVR+OtrDP/c= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727462956; c=relaxed/simple; bh=fvMgX986tUVxwpP22TgR3jua+TVhct+8EPAJ1oLq2Tk=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=NhfiSrZlxRRqz7M9BAWmVrkOs9aeU2Nbe2ipGYnZ9d3bTrb6aobboEZ0TrRtJbjZh2X+GRCIYotuLax934IvSEPQ4hTkrVIXwdxywdH/GlXTjVagrMDwiItr+S81rUPde81shCYC7a5cBDRgXm7vkfxYjKD5IW88+PgL6WtDyzg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=cisco.com; spf=pass smtp.mailfrom=cisco.com; dkim=pass (1024-bit key) header.d=cisco.com header.i=@cisco.com header.b=gUAC7GZy; arc=none smtp.client-ip=173.37.86.74 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=cisco.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=cisco.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=cisco.com header.i=@cisco.com header.b="gUAC7GZy" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cisco.com; i=@cisco.com; l=27275; q=dns/txt; s=iport; t=1727462953; x=1728672553; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=vkuQPIEGzE6PnYxb7iXPs+d94C/9sMRzO0zzleLcfqg=; b=gUAC7GZyr/G0GUcyQNwtFrba4ZCDVan7auAJjcKqAIzWjn96ZszgAOB0 A0DTKfAxw83RlsVyj29CGGRFaDmJb75nmo/qXjHznZeCY8SMfMvAY5LTL q0hscJPyV/ToZ9B42+DzxjsGJLei2eAY2FNAvfEmlZjfgdJFbXBWM+vjH w=; X-CSE-ConnectionGUID: H9cSUZT+QvKUImy9a7J9Eg== X-CSE-MsgGUID: N+t4cpSvTb+drRbL557d2w== X-IronPort-AV: E=Sophos;i="6.11,159,1725321600"; d="scan'208";a="267608677" Received: from rcdn-core-5.cisco.com ([173.37.93.156]) by rcdn-iport-3.cisco.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Sep 2024 18:48:03 +0000 Received: from localhost.cisco.com ([10.193.101.253]) (authenticated bits=0) by rcdn-core-5.cisco.com (8.15.2/8.15.2) with ESMTPSA id 48RIkQaj022754 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Fri, 27 Sep 2024 18:48:03 GMT From: Karan Tilak Kumar To: sebaddel@cisco.com Cc: arulponn@cisco.com, djhawar@cisco.com, gcboffa@cisco.com, mkai2@cisco.com, satishkh@cisco.com, aeasi@cisco.com, jejb@linux.ibm.com, martin.petersen@oracle.com, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, Karan Tilak Kumar Subject: [PATCH v3 02/14] scsi: fnic: Add headers and definitions for FDLS Date: Fri, 27 Sep 2024 11:46:01 -0700 Message-Id: <20240927184613.52172-3-kartilak@cisco.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20240927184613.52172-1-kartilak@cisco.com> References: <20240927184613.52172-1-kartilak@cisco.com> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Authenticated-User: kartilak@cisco.com X-Outbound-SMTP-Client: 10.193.101.253, [10.193.101.253] X-Outbound-Node: rcdn-core-5.cisco.com Add headers and definitions for FDLS (Fabric Discovery and Login Services). Reviewed-by: Sesidhar Baddela Signed-off-by: Gian Carlo Boffa Signed-off-by: Arulprabhu Ponnusamy Signed-off-by: Arun Easi Signed-off-by: Karan Tilak Kumar --- Changes between v2 and v3: Incorporate review comments from Hannes: Replace redundant structure definitions with standard definitions. Remove multiple endian macro copies. Remove static OXIDs macro definitions. Changes between v1 and v2: Incorporate review comments from Hannes: Remove redundant patch description. Replace htonll() with get_unaligned_be64(). Replace raw values with macro names. Remove fnic_del_fabric_timer_sync macro. Remove fnic_del_tport_timer_sync macro. Add fnic_del_fabric_timer_sync function declaration. Add fnic_del_tport_timer_sync function declaration. Replace definitions with standard definitions from fc_els.h. Move FDMI function declaration to this patch. Incorporate review comments from John: Replace int return value with void. --- drivers/scsi/fnic/fdls_fc.h | 381 ++++++++++++++++++++++++++++++ drivers/scsi/fnic/fnic_fdls.h | 431 ++++++++++++++++++++++++++++++++++ 2 files changed, 812 insertions(+) create mode 100644 drivers/scsi/fnic/fdls_fc.h create mode 100644 drivers/scsi/fnic/fnic_fdls.h diff --git a/drivers/scsi/fnic/fdls_fc.h b/drivers/scsi/fnic/fdls_fc.h new file mode 100644 index 000000000000..25dc89a4fc2f --- /dev/null +++ b/drivers/scsi/fnic/fdls_fc.h @@ -0,0 +1,381 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright 2008 Cisco Systems, Inc. All rights reserved. + * Copyright 2007 Nuova Systems, Inc. All rights reserved. + */ + +#ifndef _FDLS_FC_H_ +#define _FDLS_FC_H_ + +/* This file contains the declarations for FC fabric services + * and target discovery + * + * Request and Response for + * 1. FLOGI + * 2. PLOGI to Fabric Controller + * 3. GPN_ID, GPN_FT + * 4. RSCN + * 5. PLOGI to Target + * 6. PRLI to Target + */ + +#include +#include +#include +#include +#include +#include + +#ifndef MIN +#define MIN(x, y) (x < y ? x : y) +#endif /* MIN */ + +#define FNIC_FCP_SP_RD_XRDY_DIS 0x00000002 +#define FNIC_FCP_SP_TARGET 0x00000010 +#define FNIC_FCP_SP_INITIATOR 0x00000020 +#define FNIC_FCP_SP_CONF_CMPL 0x00000080 +#define FNIC_FCP_SP_RETRY 0x00000100 + +#define FNIC_E_D_TOV (0x7d0) +#define FNIC_FC_CONCUR_SEQS (0xFF) +#define FNIC_FC_RO_INFO (0x1F) + +/* Little Endian */ +#define FNIC_UNSUPPORTED_RESP_OXID (0xffff) +#define FNIC_UNASSIGNED_RXID (0xffff) +#define FNIC_ELS_REQ_FCTL (0x000029) +#define FNIC_ELS_REP_FCTL (0x000099) + +#define FNIC_FCP_RSP_FCTL (0x000099) +#define FNIC_REQ_ABTS_FCTL (0x000009) + +#define FNIC_FC_PH_VER_HI (0x20) +#define FNIC_FC_PH_VER_LO (0x20) +#define FNIC_FC_PH_VER (0x2020) +#define FNIC_FC_B2B_CREDIT (0x0A) +#define FNIC_FC_B2B_RDF_SZ (0x0800) + +#define FNIC_FC_FEATURES (0x0080) + +#define ETH_TYPE_FCOE 0x8906 +#define ETH_TYPE_FIP 0x8914 + +#define FC_DIR_SERVER 0xFFFFFC +#define FC_FABRIC_CONTROLLER 0xFFFFFD +#define FC_DOMAIN_CONTR 0xFFFFFE + +#define FNIC_FC_GPN_LAST_ENTRY (0x80) + +#define FNIC_BA_ACC_RCTL 0x84 +#define FNIC_BA_RJT_RCTL 0x85 +#define FC_ABTS_RCTL 0x81 + +/* FNIC FDMI Register HBA Macros */ +#define FNIC_FDMI_NUM_PORTS 0x1000000 +#define FNIC_FDMI_NUM_HBA_ATTRS 0x9000000 +#define FNIC_FDMI_TYPE_NODE_NAME 0X100 +#define FNIC_FDMI_TYPE_MANUFACTURER 0X200 +#define FNIC_FDMI_MANUFACTURER "Cisco Systems" +#define FNIC_FDMI_TYPE_SERIAL_NUMBER 0X300 +#define FNIC_FDMI_TYPE_MODEL 0X400 +#define FNIC_FDMI_TYPE_MODEL_DES 0X500 +#define FNIC_FDMI_MODEL_DESCRIPTION "Cisco Virtual Interface Card" +#define FNIC_FDMI_TYPE_HARDWARE_VERSION 0X600 +#define FNIC_FDMI_TYPE_DRIVER_VERSION 0X700 +#define FNIC_FDMI_TYPE_ROM_VERSION 0X800 +#define FNIC_FDMI_TYPE_FIRMWARE_VERSION 0X900 +#define FNIC_FDMI_NN_LEN 0xc00 +#define FNIC_FDMI_MANU_LEN 0x1800 +#define FNIC_FDMI_SERIAL_LEN 0x1400 +#define FNIC_FDMI_MODEL_LEN 0x1000 +#define FNIC_FDMI_MODEL_DES_LEN 0x3c00 +#define FNIC_FDMI_HW_VER_LEN 0x1400 +#define FNIC_FDMI_DR_VER_LEN 0x2000 +#define FNIC_FDMI_ROM_VER_LEN 0xc00 +#define FNIC_FDMI_FW_VER_LEN 0x1400 + +/* FNIC FDMI Register PA Macros */ +#define FNIC_FDMI_TYPE_FC4_TYPES 0X100 +#define FNIC_FDMI_TYPE_SUPPORTED_SPEEDS 0X200 +#define FNIC_FDMI_TYPE_CURRENT_SPEED 0X300 +#define FNIC_FDMI_TYPE_MAX_FRAME_SIZE 0X400 +#define FNIC_FDMI_TYPE_OS_NAME 0X500 +#define FNIC_FDMI_TYPE_HOST_NAME 0X600 +#define FNIC_FDMI_NUM_PORT_ATTRS 0x6000000 +#define FNIC_FDMI_FC4_LEN 0x2400 +#define FNIC_FDMI_SUPP_SPEED_LEN 0x800 +#define FNIC_FDMI_CUR_SPEED_LEN 0x800 +#define FNIC_FDMI_MFS_LEN 0x800 +#define FNIC_FDMI_MFS 0x0080000 +#define FNIC_FDMI_OS_NAME_LEN 0x1400 +#define FNIC_FDMI_HN_LEN 0x1C00 + +#define FNIC_LOGI_RDF_SIZE(_logi) ((_logi)->fl_csp.sp_bb_data) +#define FNIC_LOGI_R_A_TOV(_logi) ((_logi)->fl_csp.sp_r_a_tov) +#define FNIC_LOGI_E_D_TOV(_logi) ((_logi)->fl_csp.sp_e_d_tov) +#define FNIC_LOGI_FEATURES(_logi) ((_logi)->fl_csp.sp_features) +#define FNIC_LOGI_PORT_NAME(_logi) ((_logi)->fl_wwpn) +#define FNIC_LOGI_NODE_NAME(_logi) ((_logi)->fl_wwnn) + +#define FNIC_LOGI_SET_NPORT_NAME(_logi, _pName) \ + (FNIC_LOGI_PORT_NAME(_logi) = get_unaligned_be64(&_pName)) +#define FNIC_LOGI_SET_NODE_NAME(_logi, _pName) \ + (FNIC_LOGI_NODE_NAME(_logi) = get_unaligned_be64(&_pName)) +#define FNIC_LOGI_SET_RDF_SIZE(_logi, _rdf_size) \ + (FNIC_LOGI_RDF_SIZE(_logi) = cpu_to_be16(_rdf_size)) +#define FNIC_LOGI_SET_E_D_TOV(_logi, _e_d_tov) \ + (FNIC_LOGI_E_D_TOV(_logi) = htonl(_e_d_tov)) +#define FNIC_LOGI_SET_R_A_TOV(_logi, _r_a_tov) \ + (FNIC_LOGI_R_A_TOV(_logi) = htonl(_r_a_tov)) + +#define FNIC_STD_SET_S_ID(_fchdr, _sid) memcpy((_fchdr)->fh_s_id, _sid, 3) +#define FNIC_STD_SET_D_ID(_fchdr, _did) memcpy((_fchdr)->fh_d_id, _did, 3) +#define FNIC_STD_SET_OX_ID(_fchdr, _oxid) ((_fchdr)->fh_ox_id = _oxid) +#define FNIC_STD_SET_RX_ID(_fchdr, _rxid) ((_fchdr)->fh_rx_id = _rxid) + +#define FNIC_STD_SET_R_CTL(_fchdr, _rctl) ((_fchdr)->fh_r_ctl = _rctl) +#define FNIC_STD_SET_TYPE(_fchdr, _type) ((_fchdr)->fh_type = _type) +#define FNIC_STD_SET_F_CTL(_fchdr, _fctl) \ + put_unaligned_be24(_fctl, (_fchdr)->fh_f_ctl) + +#define FNIC_STD_SET_NPORT_NAME(_ptr, _wwpn) put_unaligned_be64(_wwpn, _ptr) +#define FNIC_STD_SET_NODE_NAME(_ptr, _wwnn) put_unaligned_be64(_wwnn, _ptr) +#define FNIC_STD_SET_PORT_ID(__req, __portid) \ + memcpy(__req->fr_fid.fp_fid, __portid, 3) +#define FNIC_STD_SET_PORT_NAME(_req, _pName) \ + (put_unaligned_be64(_pName, &_req->fr_wwn)) + +#define FNIC_STD_GET_OX_ID(_fchdr) ((_fchdr)->fh_ox_id) +#define FNIC_STD_GET_RX_ID(_fchdr) ((_fchdr)->fh_rx_id) +#define FNIC_STD_GET_S_ID(_fchdr) ((_fchdr)->fh_s_id) +#define FNIC_STD_GET_D_ID(_fchdr) ((_fchdr)->fh_d_id) +#define FNIC_STD_GET_TYPE(_fchdr) ((_fchdr)->fh_type) +#define FNIC_STD_GET_F_CTL(_fchdr) ((_fchdr)->fh_f_ctl) +#define FNIC_STD_GET_R_CTL(_fchdr) ((_fchdr)->fh_r_ctl) + +#define FNIC_STD_GET_FC_CT_CMD(__fcct_hdr) (be16_to_cpu(__fcct_hdr->ct_cmd)) + +#define FNIC_FCOE_SOF (0x2E) +#define FNIC_FCOE_EOF (0x42) + +#define FNIC_FCOE_MAX_FRAME_SZ (2048) +#define FNIC_FCOE_MIN_FRAME_SZ (280) +#define FNIC_FC_MAX_PAYLOAD_LEN (2048) +#define FNIC_MIN_DATA_FIELD_SIZE (256) +#define FNIC_R_A_TOV_DEF (10 * 1000) /* msec */ +#define FNIC_E_D_TOV_DEF (2 * 1000) /* msec */ + +#define FNIC_FC_EDTOV_NSEC (0x400) +#define FNIC_NSEC_TO_MSEC (0x1000000) +#define FCP_PRLI_FUNC_TARGET (0x0010) + +#define FNIC_FC_R_CTL_SOLICITED_DATA (0x21) +#define FNIC_FC_F_CTL_LAST_END_SEQ (0x98) +#define FNIC_FC_F_CTL_LAST_END_SEQ_INT (0x99) +#define FNIC_FC_F_CTL_FIRST_LAST_SEQINIT (0x29) +#define FNIC_FC_R_CTL_FC4_SCTL (0x03) +#define FNIC_FC_CS_CTL (0x00) + +#define FNIC_FC_FRAME_UNSOLICITED(_fchdr) \ + (_fchdr->fh_r_ctl == FC_RCTL_ELS_REQ) +#define FNIC_FC_FRAME_SOLICITED_DATA(_fchdr) \ + (_fchdr->fh_r_ctl == FNIC_FC_R_CTL_SOLICITED_DATA) +#define FNIC_FC_FRAME_SOLICITED_CTRL_REPLY(_fchdr) \ + (_fchdr->fh_r_ctl == FC_RCTL_ELS_REP) +#define FNIC_FC_FRAME_FCTL_LAST_END_SEQ(_fchdr) \ + (_fchdr->fh_f_ctl[0] == FNIC_FC_F_CTL_LAST_END_SEQ) +#define FNIC_FC_FRAME_FCTL_LAST_END_SEQ_INT(_fchdr) \ + (_fchdr->fh_f_ctl[0] == FNIC_FC_F_CTL_LAST_END_SEQ_INT) +#define FNIC_FC_FRAME_FCTL_FIRST_LAST_SEQINIT(_fchdr) \ + (_fchdr->fh_f_ctl[0] == FNIC_FC_F_CTL_FIRST_LAST_SEQINIT) +#define FNIC_FC_FRAME_FC4_SCTL(_fchdr) \ + (_fchdr->fh_r_ctl == FNIC_FC_R_CTL_FC4_SCTL) +#define FNIC_FC_FRAME_TYPE_BLS(_fchdr) (_fchdr->fh_type == FC_TYPE_BLS) +#define FNIC_FC_FRAME_TYPE_ELS(_fchdr) (_fchdr->fh_type == FC_TYPE_ELS) +#define FNIC_FC_FRAME_TYPE_FC_GS(_fchdr) (_fchdr->fh_type == FC_TYPE_CT) +#define FNIC_FC_FRAME_CS_CTL(_fchdr) (_fchdr->fh_cs_ctl == FNIC_FC_CS_CTL) + +#define FNIC_FC_C3_RDF (0xfff) +#define FNIC_FC_PLOGI_RSP_RDF(_plogi_rsp) \ + (MIN(_plogi_rsp->u.csp_plogi.b2b_rdf_size, \ + (_plogi_rsp->spc3[4] & FNIC_FC_C3_RDF))) +#define FNIC_FC_PLOGI_RSP_CONCUR_SEQ(_plogi_rsp) \ + (MIN(_plogi_rsp->els.fl_csp.sp_tot_seq, \ + (be16_to_cpu(_plogi_rsp->els.fl_cssp[2].cp_con_seq) & 0xff))) + +/* Frame header */ +struct fnic_eth_hdr_s { + uint8_t dst_mac[6]; + uint8_t src_mac[6]; + uint16_t ether_type; +} __packed; + +struct fnic_fcoe_hdr_s { + uint8_t ver; + uint8_t rsvd[12]; + uint8_t sof; +} __packed; + +/* FLOGI/PLOGI struct */ +struct fc_std_flogi { + struct fc_frame_header fchdr; + struct fc_els_flogi els; +} __packed; + +#define FC_ELS_RSP_ACC_SIZE (sizeof(struct fc_frame_header) + \ + sizeof(struct fc_els_ls_acc)) +#define FC_ELS_RSP_REJ_SIZE (sizeof(struct fc_frame_header) + \ + sizeof(struct fc_els_ls_rjt)) + +struct fc_std_els_rsp { + struct fc_frame_header fchdr; + union { + u8 rsp_cmd; + struct fc_els_ls_acc acc; + struct fc_els_ls_rjt rej; + } u; +} __packed; + +struct fc_std_els_adisc { + struct fc_frame_header fchdr; + struct fc_els_adisc els; +} __packed; + +struct fc_std_rls_acc { + struct fc_frame_header fchdr; + struct fc_els_rls_resp els; +} __packed; + +struct fc_std_abts_ba_acc { + struct fc_frame_header fchdr; + struct fc_ba_acc acc; +} __packed; + +struct fc_std_abts_ba_rjt { + struct fc_frame_header fchdr; + struct fc_ba_rjt rjt; +} __packed; + +struct fc_std_els_prli { + struct fc_frame_header fchdr; + struct fc_els_prli els_prli; + struct fc_els_spp sp; +} __packed; + +struct fc_std_rpn_id { + struct fc_frame_header fchdr; + struct fc_ct_hdr fc_std_ct_hdr; + struct fc_ns_rn_id rpn_id; +} __packed; + +struct fc_std_fdmi_rhba { + struct fc_frame_header fchdr; + struct fc_ct_hdr fc_std_ct_hdr; + uint64_t hba_identifier; + uint32_t num_ports; + uint64_t port_name; + uint32_t num_hba_attributes; + uint16_t type_nn; + uint16_t length_nn; + uint64_t node_name; + uint16_t type_manu; + uint16_t length_manu; + uint8_t manufacturer[20]; + uint16_t type_serial; + uint16_t length_serial; + uint8_t serial_num[16]; + uint16_t type_model; + uint16_t length_model; + uint8_t model[12]; + uint16_t type_model_des; + uint16_t length_model_des; + uint8_t model_description[56]; + uint16_t type_hw_ver; + uint16_t length_hw_ver; + uint8_t hardware_ver[16]; + uint16_t type_dr_ver; + uint16_t length_dr_ver; + uint8_t driver_ver[28]; + uint16_t type_rom_ver; + uint16_t length_rom_ver; + uint8_t rom_ver[8]; + uint16_t type_fw_ver; + uint16_t length_fw_ver; + uint8_t firmware_ver[16]; +} __packed; + +struct fc_std_fdmi_rpa { + struct fc_frame_header fchdr; + struct fc_ct_hdr fc_std_ct_hdr; + uint64_t port_name; + uint32_t num_port_attributes; + uint16_t type_fc4; + uint16_t length_fc4; + uint8_t fc4_type[32]; + uint16_t type_supp_speed; + uint16_t length_supp_speed; + uint32_t supported_speed; + uint16_t type_cur_speed; + uint16_t length_cur_speed; + uint32_t current_speed; + uint16_t type_max_frame_size; + uint16_t length_max_frame_size; + uint32_t max_frame_size; + uint16_t type_os_name; + uint16_t length_os_name; + uint8_t os_name[16]; + uint16_t type_host_name; + uint16_t length_host_name; + uint8_t host_name[24]; +} __packed; + +struct fc_std_rft_id { + struct fc_frame_header fchdr; + struct fc_ct_hdr fc_std_ct_hdr; + struct fc_ns_rft_id rft_id; +} __packed; + +struct fc_std_rff_id { + struct fc_frame_header fchdr; + struct fc_ct_hdr fc_std_ct_hdr; + struct fc_ns_rff_id rff_id; +} __packed; + +struct fc_std_gpn_ft { + struct fc_frame_header fchdr; + struct fc_ct_hdr fc_std_ct_hdr; + struct fc_ns_gid_ft gpn_ft; +} __packed; + +/* Accept CT_IU for GPN_FT */ +struct fc_gpn_ft_rsp_iu { + uint8_t ctrl; + uint8_t fcid[3]; + uint32_t rsvd; + uint64_t wwpn; +} __packed; + +struct fc_std_rls { + struct fc_frame_header fchdr; + struct fc_els_rls els; +} __packed; + +struct fc_std_scr { + struct fc_frame_header fchdr; + struct fc_els_scr scr; +} __packed; + +struct fc_std_rscn { + struct fc_frame_header fchdr; + struct fc_els_rscn els; +} __packed; + +struct fc_std_logo { + struct fc_frame_header fchdr; + struct fc_els_logo els; +} __packed; + +#define FNIC_FCOE_FCHDR_OFFSET \ + (sizeof(struct fnic_eth_hdr_s) + sizeof(struct fnic_fcoe_hdr_s)) + +#endif /* _FDLS_FC_H */ diff --git a/drivers/scsi/fnic/fnic_fdls.h b/drivers/scsi/fnic/fnic_fdls.h new file mode 100644 index 000000000000..0097ba836ff1 --- /dev/null +++ b/drivers/scsi/fnic/fnic_fdls.h @@ -0,0 +1,431 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright 2008 Cisco Systems, Inc. All rights reserved. + * Copyright 2007 Nuova Systems, Inc. All rights reserved. + */ + +#ifndef _FNIC_FDLS_H_ +#define _FNIC_FDLS_H_ + +#include "fnic_stats.h" +#include "fdls_fc.h" + +/* FDLS - Fabric discovery and login services + * -> VLAN discovery + * -> retry every retry delay seconds until it succeeds. + * <- List of VLANs + * + * -> Solicitation + * <- Solicitation response (Advertisement) + * + * -> FCF selection & FLOGI ( FLOGI timeout - 2 * E_D_TOV) + * <- FLOGI response + * + * -> FCF keep alive + * <- FCF keep alive + * + * -> PLOGI to FFFFFC (DNS) (PLOGI timeout - 2 * R_A_TOV) + * -> ABTS if timeout (ABTS tomeout - 2 * R_A_TOV) + * <- PLOGI response + * -> Retry PLOGI to FFFFFC (DNS) - Number of retries from vnic.cfg + * + * -> SCR to FFFFFC (DNS) (SCR timeout - 2 * R_A_TOV) + * -> ABTS if timeout (ABTS tomeout - 2 * R_A_TOV) + * <- SCR response + * -> Retry SCR - Number of retries 2 + * + * -> GPN_FT to FFFFFC (GPN_FT timeout - 2 * R_A_TOV)a + * -> Retry on BUSY until it succeeds + * -> Retry on BUSY until it succeeds + * -> 2 retries on timeout + * + * -> RFT_ID to FFFFFC (DNS) (RFT_ID timeout - 3 * R_A_TOV) + * -> ABTS if timeout (ABTS tomeout - 2 * R_A_TOV) + * -> Retry RFT_ID to FFFFFC (DNS) (Number of retries 2 ) + * -> Ignore if both retires fail. + * + * Session establishment with targets + * For each PWWN + * -> PLOGI to FCID of that PWWN (PLOGI timeout 2 * R_A_TOV) + * -> ABTS if timeout (ABTS tomeout - 2 * R_A_TOV) + * <- PLOGI response + * -> Retry PLOGI. Num retries using vnic.cfg + * + * -> PRLI to FCID of that PWWN (PRLI timeout 2 * R_A_TOV) + * -> ABTS if timeout (ABTS tomeout - 2 * R_A_TOV) + * <- PRLI response + * -> Retry PRLI. Num retries using vnic.cfg + * + */ + +#define FDLS_RETRY_COUNT 2 + +#define FDLS_FABRIC_OXID_POOL_SZ (32) +#define FDLS_FABRIC_OXID_POOL_BASE (0x1000) +#define FDLS_FABRIC_OXID_POOL_END (FDLS_FABRIC_OXID_POOL_BASE + FDLS_FABRIC_OXID_POOL_SZ - 1) + +#define FDLS_FDMI_OXID_POOL_BASE (FDLS_FABRIC_OXID_POOL_END + 1) +#define FDLS_FDMI_OXID_POOL_SZ (8) +#define FDLS_FDMI_OXID_POOL_END (FDLS_FDMI_OXID_POOL_BASE + FDLS_FDMI_OXID_POOL_SZ - 1) + +#define FDLS_TGT_OXID_BLOCK_SZ (0x200) +#define FDLS_PLOGI_OXID_BASE (0x2000) +#define FDLS_PRLI_OXID_BASE (0x2200) +#define FDLS_ADISC_OXID_BASE (0x2400) +#define FDLS_TGT_OXID_POOL_END (FDLS_PLOGI_OXID_BASE + FDLS_TGT_OXID_POOL_SZ) +#define FDLS_TGT_OXID_POOL_SZ (0x800) + +#define FNIC_FDLS_FABRIC_ABORT_ISSUED 0x1 +#define FNIC_FDLS_FPMA_LEARNT 0x2 + +/* tport flags */ +#define FNIC_FDLS_TPORT_IN_GPN_FT_LIST 0x1 +#define FNIC_FDLS_TGT_ABORT_ISSUED 0x2 +#define FNIC_FDLS_TPORT_SEND_ADISC 0x4 +#define FNIC_FDLS_RETRY_FRAME 0x8 +#define FNIC_FDLS_TPORT_BUSY 0x10 +#define FNIC_FDLS_TPORT_TERMINATING 0x20 +#define FNIC_FDLS_TPORT_DELETED 0x40 +#define FNIC_FDLS_SCSI_REGISTERED 0x200 +#define FNIC_TPORT_CAN_BE_FREED 0x400 + +/* Retry supported by rport(returned by prli service parameters) */ +#define FDLS_FC_RP_FLAGS_RETRY 0x1 + +#define fdls_set_state(_fdls_fabric, _state) ((_fdls_fabric)->state = _state) +#define fdls_get_state(_fdls_fabric) ((_fdls_fabric)->state) + +#define FNIC_FDMI_ACTIVE 0x8 +#define FNIC_FIRST_LINK_UP 0x2 + +#define fdls_set_tport_state(_tport, _state) (_tport->state = _state) +#define fdls_get_tport_state(_tport) (_tport->state) + +#define FNIC_PORTSPEED_10GBIT 1 +#define FNIC_FRAME_HT_ROOM (2148) +#define FNIC_FCOE_FRAME_MAXSZ (2112) + +struct fnic_fip_fcf_s { + uint16_t vlan_id; + uint8_t fcf_mac[6]; + uint8_t fcf_priority; + uint32_t fka_adv_period; + uint8_t ka_disabled; +}; + +enum fnic_fdls_state_e { + FDLS_STATE_INIT = 0, + FDLS_STATE_LINKDOWN, + FDLS_STATE_FABRIC_LOGO, + FDLS_STATE_FLOGO_DONE, + FDLS_STATE_FABRIC_FLOGI, + FDLS_STATE_FABRIC_PLOGI, + FDLS_STATE_RPN_ID, + FDLS_STATE_REGISTER_FC4_TYPES, + FDLS_STATE_REGISTER_FC4_FEATURES, + FDLS_STATE_SCR, + FDLS_STATE_GPN_FT, + FDLS_STATE_TGT_DISCOVERY, + FDLS_STATE_RSCN_GPN_FT, + FDLS_STATE_SEND_GPNFT +}; + +struct fnic_fdls_fabric_s { + enum fnic_fdls_state_e state; + uint32_t flags; + struct list_head tport_list; /* List of discovered tports */ + struct timer_list retry_timer; + int del_timer_inprogress; + int del_fdmi_timer_inprogress; + int retry_counter; + int timer_pending; + int fdmi_retry; + struct timer_list fdmi_timer; + int fdmi_pending; +}; + +struct fnic_fdls_fip_s { + uint32_t state; + uint32_t flogi_retry; +}; + +/* Message to tport_event_handler */ +enum fnic_tgt_msg_id { + TGT_EV_NONE = 0, + TGT_EV_RPORT_ADD, + TGT_EV_RPORT_DEL, + TGT_EV_TPORT_DELETE, + TGT_EV_REMOVE +}; + +struct fnic_tport_event_s { + struct list_head links; + enum fnic_tgt_msg_id event; + void *arg1; +}; + +enum fdls_tgt_state_e { + FDLS_TGT_STATE_INIT = 0, + FDLS_TGT_STATE_PLOGI, + FDLS_TGT_STATE_PRLI, + FDLS_TGT_STATE_READY, + FDLS_TGT_STATE_LOGO_RECEIVED, + FDLS_TGT_STATE_ADISC, + FDL_TGT_STATE_PLOGO, + FDLS_TGT_STATE_OFFLINING, + FDLS_TGT_STATE_OFFLINE +}; + +struct fnic_tport_s { + struct list_head links; /* To link the tports */ + enum fdls_tgt_state_e state; + uint32_t flags; + uint32_t fcid; + uint64_t wwpn; + uint64_t wwnn; + uint16_t oxid_used; + uint16_t tgt_flags; + atomic_t in_flight; /* io counter */ + uint16_t max_payload_size; + uint16_t r_a_tov; + uint16_t e_d_tov; + uint16_t lun0_delay; + int max_concur_seqs; + uint32_t fcp_csp; + struct timer_list retry_timer; + int del_timer_inprogress; + int retry_counter; + int timer_pending; + unsigned int num_pending_cmds; + int nexus_restart_count; + int exch_reset_in_progress; + void *iport; + struct work_struct tport_del_work; + struct completion *tport_del_done; + struct delayed_work tport_scan_work; + struct fc_rport *rport; + char str_wwpn[20]; + char str_wwnn[20]; +}; + +/* OXID pool related structures */ +struct reclaim_entry_s { + struct list_head links; + uint16_t oxid; /* oxid that needs to be freed after 2*r_a_tov */ + unsigned long timestamp; /* in jiffies. Use this to waiting time */ +}; + +/* this data structure contains all other info about the pool */ +struct fnic_oxid_pool_meta_s { + /* Base of the oxid pool before encoding with expected rsp type */ + uint16_t oxid_base; + int sz; /* size of the pool or block */ + int next_idx; /* used for cycling through the oxid pool */ + struct list_head reclaim_list; /* list of oxids to be reclaimed later */ +}; + +/* used for allocating oxids for fabric and fdmi requests */ +struct fnic_fabric_oxid_pool_s { + DECLARE_BITMAP(bitmap, FDLS_FABRIC_OXID_POOL_SZ); + struct fnic_oxid_pool_meta_s meta; + + /* + * fabric reqs are serialized and only one req at a time. + * Tracking the oxid for sending abort + */ + uint16_t active_oxid_fabric_req; + + /* fdmi only */ + uint16_t active_oxid_fdmi_plogi; + uint16_t active_oxid_fdmi_rhba; + uint16_t active_oxid_fdmi_rpa; +}; + +/* used for allocating oxids for target requests */ +struct fnic_tgt_oxid_pool_s { + DECLARE_BITMAP(bitmap, FDLS_TGT_OXID_BLOCK_SZ); + struct fnic_oxid_pool_meta_s meta; /* contains all other info */ +}; + +/* iport */ +enum fnic_iport_state_e { + FNIC_IPORT_STATE_INIT = 0, + FNIC_IPORT_STATE_LINK_WAIT, + FNIC_IPORT_STATE_FIP, + FNIC_IPORT_STATE_FABRIC_DISC, + FNIC_IPORT_STATE_READY +}; + +struct fnic_iport_s { + enum fnic_iport_state_e state; + struct fnic *fnic; + uint64_t boot_time; + uint32_t flags; + int usefip; + uint8_t hwmac[6]; /* HW MAC Addr */ + uint8_t fpma[6]; /* Fabric Provided MA */ + uint8_t fcfmac[6]; /* MAC addr of Fabric */ + uint16_t vlan_id; + uint32_t fcid; + + /* oxid pool for fabric reqs */ + struct fnic_fabric_oxid_pool_s fabric_oxid_pool; + /* oxid pool for fdmi */ + struct fnic_fabric_oxid_pool_s fdmi_oxid_pool; + /* oxid pool for target plogi */ + struct fnic_tgt_oxid_pool_s plogi_oxid_pool; + /* oxid pool for target prli */ + struct fnic_tgt_oxid_pool_s prli_oxid_pool; + /* oxid pool for target adisc */ + struct fnic_tgt_oxid_pool_s adisc_oxid_pool; + + struct fnic_fip_fcf_s selected_fcf; + struct fnic_fdls_fip_s fip; + struct fnic_fdls_fabric_s fabric; + struct list_head tport_list; + struct list_head tport_list_pending_del; + /* list of tports for which we are yet to send PLOGO */ + struct list_head inprocess_tport_list; + struct list_head deleted_tport_list; + struct work_struct tport_event_work; + uint32_t e_d_tov; /* msec */ + uint32_t r_a_tov; /* msec */ + uint32_t link_supported_speeds; + uint32_t max_flogi_retries; + uint32_t max_plogi_retries; + uint32_t plogi_timeout; + uint32_t service_params; + uint64_t wwpn; + uint64_t wwnn; + uint16_t max_payload_size; + spinlock_t deleted_tport_lst_lock; + struct completion *flogi_reg_done; + char str_wwpn[20]; + char str_wwnn[20]; + }; + struct rport_dd_data_s { + struct fnic_tport_s *tport; + struct fnic_iport_s *iport; +}; + +enum fnic_recv_frame_type_e { + FNIC_FABRIC_FLOGI_RSP = 1, + FNIC_FABRIC_PLOGI_RSP, + FNIC_FABRIC_RPN_RSP, + FNIC_FABRIC_RFT_RSP, + FNIC_FABRIC_RFF_RSP, + FNIC_FABRIC_SCR_RSP, + FNIC_FABRIC_GPN_FT_RSP, + FNIC_FDMI_PLOGI_RSP, + FNIC_FDMI_REG_HBA_RSP, + FNIC_FDMI_RPA_RSP, + FNIC_TPORT_PLOGI_RSP, + FNIC_TPORT_PRLI_RSP, + FNIC_TPORT_ADISC_RSP, + FNIC_TPORT_LOGO_RSP, + FNIC_BLS_ABTS_REQ, + FNIC_FABRIC_LOGO_RSP, + FNIC_BLS_ABTS_RSP, + FNIC_ELS_PLOGI_REQ, + FNIC_ELS_RSCN_REQ, + FNIC_ELS_LOGO_REQ, + FNIC_ELS_ECHO_REQ, + FNIC_ELS_ADISC, + FNIC_ELS_RLS, + FNIC_ELS_RRQ, + FNIC_ELS_UNSUPPORTED_REQ, +}; + +enum fnic_port_speeds { + DCEM_PORTSPEED_NONE = 0, + DCEM_PORTSPEED_1G = 1000, + DCEM_PORTSPEED_2G = 2000, + DCEM_PORTSPEED_4G = 4000, + DCEM_PORTSPEED_8G = 8000, + DCEM_PORTSPEED_10G = 10000, + DCEM_PORTSPEED_16G = 16000, + DCEM_PORTSPEED_20G = 20000, + DCEM_PORTSPEED_25G = 25000, + DCEM_PORTSPEED_32G = 32000, + DCEM_PORTSPEED_40G = 40000, + DCEM_PORTSPEED_4x10G = 41000, + DCEM_PORTSPEED_50G = 50000, + DCEM_PORTSPEED_64G = 64000, + DCEM_PORTSPEED_100G = 100000, + DCEM_PORTSPEED_128G = 128000, +}; + +/* Function Declarations */ +/* fdls_disc.c */ +void fnic_fdls_disc_init(struct fnic_iport_s *iport); +void fnic_fdls_disc_start(struct fnic_iport_s *iport); +void fnic_fdls_recv_frame(struct fnic_iport_s *iport, void *rx_frame, + int len, int fchdr_offset); +void fnic_fdls_link_down(struct fnic_iport_s *iport); +void fdls_init_tgt_oxid_pool(struct fnic_iport_s *iport); +void fdls_init_oxid_pool(struct fnic_iport_s *iport); +uint16_t fdls_alloc_oxid(struct fnic_iport_s *iport, + struct fnic_oxid_pool_meta_s *meta, unsigned long *bitmap); +uint16_t fdls_alloc_fabric_oxid(struct fnic_iport_s *iport, + struct fnic_fabric_oxid_pool_s *oxid_pool, int exp_rsp_type); +int fnic_fdls_expected_rsp(struct fnic_iport_s *iport, uint16_t oxid); +void fdls_free_fabric_oxid(struct fnic_iport_s *iport, + struct fnic_fabric_oxid_pool_s *oxid_pool, + uint16_t oxid); +void fdls_free_oxid(struct fnic_iport_s *iport, + struct fnic_oxid_pool_meta_s *meta, + unsigned long *bitmap, uint16_t oxid); +void fdls_tgt_logout(struct fnic_iport_s *iport, + struct fnic_tport_s *tport); +inline void fnic_del_fabric_timer_sync(struct fnic *fnic); +inline void fnic_del_tport_timer_sync(struct fnic *fnic, + struct fnic_tport_s *tport); +void fdls_send_fabric_logo(struct fnic_iport_s *iport); +int fnic_fdls_validate_and_get_frame_type(struct fnic_iport_s *iport, + void *rx_frame, int len, + int fchdr_offset); +void fdls_send_tport_abts(struct fnic_iport_s *iport, + struct fnic_tport_s *tport); +bool fdls_delete_tport(struct fnic_iport_s *iport, + struct fnic_tport_s *tport); +void fdls_fdmi_timer_callback(struct timer_list *t); + +/* fnic_fcs.c */ +void fnic_fdls_init(struct fnic *fnic, int usefip); +void fnic_send_fcoe_frame(struct fnic_iport_s *iport, void *payload, + int payload_sz); +void fnic_fcoe_send_vlan_req(struct fnic *fnic); +int fnic_send_fip_frame(struct fnic_iport_s *iport, + void *payload, int payload_sz); +void fnic_fdls_learn_fcoe_macs(struct fnic_iport_s *iport, void *rx_frame, + uint8_t *fcid); + +void fnic_fdls_add_tport(struct fnic_iport_s *iport, + struct fnic_tport_s *tport, unsigned long flags); +void fnic_fdls_remove_tport(struct fnic_iport_s *iport, + struct fnic_tport_s *tport, + unsigned long flags); + +/* fip.c */ +void fnic_fcoe_send_vlan_req(struct fnic *fnic); +void fnic_common_fip_cleanup(struct fnic *fnic); +int fdls_fip_recv_frame(struct fnic *fnic, void *frame); +void fnic_handle_fcs_ka_timer(struct timer_list *t); +void fnic_handle_enode_ka_timer(struct timer_list *t); +void fnic_handle_vn_ka_timer(struct timer_list *t); +void fnic_handle_fip_timer(struct timer_list *t); +extern void fdls_fabric_timer_callback(struct timer_list *t); + +/* fnic_scsi.c */ +void fnic_scsi_fcpio_reset(struct fnic *fnic); +extern void fdls_fabric_timer_callback(struct timer_list *t); +void fnic_rport_exch_reset(struct fnic *fnic, u32 fcid); +int fnic_fdls_register_portid(struct fnic_iport_s *iport, u32 port_id, + void *fp); +struct fnic_tport_s *fnic_find_tport_by_fcid(struct fnic_iport_s *iport, + uint32_t fcid); +struct fnic_tport_s *fnic_find_tport_by_wwpn(struct fnic_iport_s *iport, + uint64_t wwpn); + +#endif /* _FNIC_FDLS_H_ */ +