From patchwork Mon Mar 17 16:31:31 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: anisa.su887@gmail.com X-Patchwork-Id: 14019921 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 43E5FC28B28 for ; Mon, 17 Mar 2025 19:49:08 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tuGS1-0007OK-Q0; Mon, 17 Mar 2025 15:48:42 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tuDZT-0003aU-Az for qemu-devel@nongnu.org; Mon, 17 Mar 2025 12:44:14 -0400 Received: from mail-pl1-x634.google.com ([2607:f8b0:4864:20::634]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1tuDZ6-0001EU-M5 for qemu-devel@nongnu.org; Mon, 17 Mar 2025 12:43:51 -0400 Received: by mail-pl1-x634.google.com with SMTP id d9443c01a7336-22409077c06so117371995ad.1 for ; Mon, 17 Mar 2025 09:43:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1742229825; x=1742834625; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=/81TCdkrP4U9ftuJqqmxfWdVPH8Vq1OR4n4vbJaQfuc=; b=DTlxxt54tddpa2kGdQIPQKm8Ow1jsE7GjnQplRmw5XsbXdx2oRHGf6+xon8dOM6GsI n8WDc43GbMYwROS3uLfWLPS22f/fGtFdcbbq1h9/XYkL/DFDItwT727BKzz1wpoIY/Lw GY+7JEi/WBxw24XeWbi9V8km+8AooLMN8xgufw+lunieZ7WacN1zaupWLrHvDAIu7kdb LBkmXCMFObHpzTM0480ec+IDOy2LQe9v7JNfVeDKIYlI5CNb8EYPGDWdXkWy5Yoq0E+i BUHnsHTVerc5yETzUkri8ckQAlO8xzx7tiyuLOHLhrNklnv0cPIQ33uMYz8rCCoGlAMb jMPQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1742229825; x=1742834625; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=/81TCdkrP4U9ftuJqqmxfWdVPH8Vq1OR4n4vbJaQfuc=; b=u2CCZ7KKPXsroSShCHM2uGdG6U1vFD6GdvuAPeXJArKNa1dB38iQ0qxcG02Vh/CDWn BChFfK2SZOI481T2RnStiddVxqlW8V2F1mGA0L8tHlB6UDUe1lY3oF7f9diCXdI80br4 wM/VrBOnf2+0iDdP4CCd1AWJwrF+nGAje87SFQOwvdoTRvF5+0coLL0PGvIyXsGRXKgv t/LfJX8S+z3BOms8JgboHbbGhhKa/HVcWe2S3P3lRMBLK4ubgyykUZUQ/z+RaO3Ji/3P lcQwp+RAc0uDgI52JYui6hHyUfqZg6t0+AxBCrqRB+xrpPFLOXkyJDXLjhYThihRiiAU ZtHw== X-Gm-Message-State: AOJu0Yzr+bn7/VadlKyEgcNEtVOzANcxGkSN4BHj12dtIQ51gf5l6OdX RbVRXwGVCAJEvKwo+PbRpcqikgNW7NlN7j92M/Wo4X2vvAb/xQT54EZNcw== X-Gm-Gg: ASbGnctpVtV/Sknz+eE0hEo9wIaPAcrmxcR7b24jE/D9zBZGyow8WTG7RlyrH+wBbYo 5gytNue+yFgRFfiev+QuOHAkC/J1NvbzwBNmWkXWZA4n1XKVx3WDASUFb3RAUFpfXpOn8oEOtm6 WtrcEXVHIt+2kw2WJdSAqDiVjCUCP9rawnIflJW9sUneHEDMCo2ko5poX8G/ytivm7GcMXgSqhR Km4KPUcQCjlsqQL+tX2tzo6YjlVKBy35/8ETO8DJ0DygAdMhINulzDLdXA7YcS4w8oYfVPmEWaS qBdDkr/llNffqyC5medx+YkC0j2aUphzbfCbFHjQP10d0pTnto2SU2m+JTjgCJMgIA== X-Google-Smtp-Source: AGHT+IFak24zVoWJ9MyZ/aEEihMeyRc3i0vqCnEzyb8zC6JLW9jUB2nMLHXl1QSGf0gpVDtxsB5jkQ== X-Received: by 2002:a17:903:1a2f:b0:223:5a6e:b16 with SMTP id d9443c01a7336-225e0a15ecemr181984885ad.5.1742229824837; Mon, 17 Mar 2025 09:43:44 -0700 (PDT) Received: from deb-101020-bm01.dtc.local ([149.97.161.244]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-225c6888461sm77810085ad.23.2025.03.17.09.43.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Mar 2025 09:43:44 -0700 (PDT) From: anisa.su887@gmail.com To: qemu-devel@nongnu.org Cc: jonathan.cameron@huawei.com, nifan.cxl@gmail.com, dave@stgolabs.net, linux-cxl@vger.kernel.org, Anisa Su Subject: [PATCH 4/9] cxl-mailbox-utils: 0x5601 - FMAPI Get Host Region Config Date: Mon, 17 Mar 2025 16:31:31 +0000 Message-ID: <20250317164204.2299371-5-anisa.su887@gmail.com> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20250317164204.2299371-1-anisa.su887@gmail.com> References: <20250317164204.2299371-1-anisa.su887@gmail.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::634; envelope-from=anisa.su887@gmail.com; helo=mail-pl1-x634.google.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Mon, 17 Mar 2025 15:48:05 -0400 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Anisa Su FM DCD Management command 0x5601 implemented per CXL r3.2 Spec Section 7.6.7.6.2 Signed-off-by: Anisa Su --- hw/cxl/cxl-mailbox-utils.c | 97 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 97 insertions(+) diff --git a/hw/cxl/cxl-mailbox-utils.c b/hw/cxl/cxl-mailbox-utils.c index e9991fd1a7..4bb51bf3e8 100644 --- a/hw/cxl/cxl-mailbox-utils.c +++ b/hw/cxl/cxl-mailbox-utils.c @@ -124,6 +124,7 @@ enum { #define GET_MHD_INFO 0x0 FMAPI_DCD_MGMT = 0x56, #define GET_DCD_INFO 0x0 + #define GET_HOST_DC_REGION_CONFIG 0x1 }; /* CCI Message Format CXL r3.1 Figure 7-19 */ @@ -3399,6 +3400,100 @@ static CXLRetCode cmd_fm_get_dcd_info(const struct cxl_cmd *cmd, return CXL_MBOX_SUCCESS; } +/* + * CXL r3.2 section 7.6.7.6.2: Get Host DC Region Configuration (Opcode 5601h) + */ +static CXLRetCode cmd_fm_get_host_dc_region_config(const struct cxl_cmd *cmd, + uint8_t *payload_in, + size_t len_in, + uint8_t *payload_out, + size_t *len_out, + CXLCCI *cci) +{ + struct { + uint16_t host_id; + uint8_t region_cnt; + uint8_t start_rid; + } QEMU_PACKED *in; + struct { + uint16_t host_id; + uint8_t num_regions; + uint8_t regions_returned; + struct { + uint64_t base; + uint64_t decode_len; + uint64_t region_len; + uint64_t block_size; + uint8_t dsmas_flags; + uint8_t rsvd1[3]; + uint8_t sanitize; + uint8_t rsvd2[3]; + } QEMU_PACKED records[]; + } QEMU_PACKED *out; + struct { + uint32_t num_extents_supported; + uint32_t num_extents_available; + uint32_t num_tags_supported; + uint32_t num_tags_available; + } QEMU_PACKED *extra_out; + CXLType3Dev *ct3d = CXL_TYPE3(cci->d); + uint16_t record_count, out_pl_len, i; + uint8_t start_rid; + + if (ct3d->dc.num_regions == 0) { + return CXL_MBOX_UNSUPPORTED; + } + + in = (void *)payload_in; + if (in->start_rid >= ct3d->dc.num_regions) { + return CXL_MBOX_INVALID_INPUT; + } + + start_rid = in->start_rid; + record_count = MIN(ct3d->dc.num_regions - start_rid, in->region_cnt); + + out = (void *)payload_out; + out_pl_len = sizeof(*out) + record_count * sizeof(out->records[0]); + + extra_out = (void *)(out) + out_pl_len; + out_pl_len += sizeof(*extra_out); + + assert(*len_out <= CXL_MAILBOX_MAX_PAYLOAD_SIZE); + + /* TODO: For now, fix host id to be 0 */ + stw_le_p(&out->host_id, 0); + out->num_regions = ct3d->dc.num_regions; + out->regions_returned = record_count; + + for (i = 0; i < record_count; i++) { + stq_le_p(&out->records[i].base, + ct3d->dc.regions[start_rid + i].base); + stq_le_p(&out->records[i].decode_len, + ct3d->dc.regions[start_rid + i].decode_len / + CXL_CAPACITY_MULTIPLIER); + stq_le_p(&out->records[i].region_len, + ct3d->dc.regions[start_rid + i].len); + stq_le_p(&out->records[i].block_size, + ct3d->dc.regions[start_rid + i].block_size); + out->records[i].dsmas_flags = + ct3d->dc.regions[start_rid + i].dsmas_flags; + out->records[i].sanitize = 0; + } + /* + * TODO: Assign values once extents and tags are introduced + * to use. + */ + stl_le_p(&extra_out->num_extents_supported, CXL_NUM_EXTENTS_SUPPORTED); + stl_le_p(&extra_out->num_extents_available, CXL_NUM_EXTENTS_SUPPORTED - + ct3d->dc.total_extent_count); + stl_le_p(&extra_out->num_tags_supported, CXL_NUM_TAGS_SUPPORTED); + stl_le_p(&extra_out->num_tags_available, CXL_NUM_TAGS_SUPPORTED); + + *len_out = out_pl_len; + + return CXL_MBOX_SUCCESS; +} + static const struct cxl_cmd cxl_cmd_set[256][256] = { [INFOSTAT][BACKGROUND_OPERATION_ABORT] = { "BACKGROUND_OPERATION_ABORT", cmd_infostat_bg_op_abort, 0, 0 }, @@ -3523,6 +3618,8 @@ static const struct cxl_cmd cxl_cmd_set_sw[256][256] = { static const struct cxl_cmd cxl_cmd_set_fm_dcd[256][256] = { [FMAPI_DCD_MGMT][GET_DCD_INFO] = { "GET_DCD_INFO", cmd_fm_get_dcd_info, 0, 0}, + [FMAPI_DCD_MGMT][GET_HOST_DC_REGION_CONFIG] = { "GET_HOST_DC_REGION_CONFIG", + cmd_fm_get_host_dc_region_config, 4, 0}, }; /*