From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f169.google.com (mail-pf1-f169.google.com [209.85.210.169]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EE51827FD4F for ; Thu, 5 Jun 2025 23:42:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.169 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749166965; cv=none; b=feKPj5wJvbGcvMZCt+QPUa4ASZ5a0AjIDuyIQbcvlpNcLFSgj9oZo8k6tLiBMnjigVpA6AyZZngg4bBeojsbrjB4mFE+gRKh2XLFep3779ToOozM/iOicPaP6o8Yxnqslu2b3bvYP6Nz4OyPlqyvretrjVh4rrwyb2i0MdD7nSE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749166965; c=relaxed/simple; bh=l4CG3eXmri+zYbomHZCmylaRZY32iQiyHFoj/C7/5es=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ryKZDIs0T5epZdW5cnZP4aowPjW5oRnPCzUXzpBUqeN1zarKMCXOratHdifGLojK2oe82cH77V05X25H5ntykDqpd8tMjKon7o3tzbLY5pGHXiiggGb8cbuX6hXtNTyze6u2qN0iOjH8obWiouQDW7Xfa3nfbfxVhdFnW0P0Jv0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=K40vqZ8N; arc=none smtp.client-ip=209.85.210.169 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="K40vqZ8N" Received: by mail-pf1-f169.google.com with SMTP id d2e1a72fcca58-742af84818cso1176600b3a.1 for ; Thu, 05 Jun 2025 16:42:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1749166963; x=1749771763; darn=vger.kernel.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=4oEmtdkJsqGS/x/sZAr6F/pr5dRN3cjaHb+H2YFOvnI=; b=K40vqZ8NkUoIQ5v8OKjIFYWFlIT/Qj1zVt8u8l35pbsjTnXx962cCZ0PQ2zJ/RgVuG xsF6wbQIz4dNVUMOObxUJPIHisPazuMuPTx1nEBBBOfdCqHsZ1YH2NKppI8Gcod5wWZw 0gWmT6nbHyyLEvd8wKEy3jtwPh43iH12KnDJhHO02XI+sFiqQAPRW+xPEWq4l3RuP20M mtdpMlXXUjbCxnNeVLl7HKCJ0LrPI5uIUKlPpzMIvpqA0baDwgO4Q8lv8i+IS4F3FGcu 3Rk7JupZtm8yzHS4e/4A3JSO8UBRr5phq7g7Bzku6LuP6Qgaz/Pmfp1aW0n1/uOWA8qj 0O9A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1749166963; x=1749771763; 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=4oEmtdkJsqGS/x/sZAr6F/pr5dRN3cjaHb+H2YFOvnI=; b=oZ6TyZboGeuvuwUdAYzt0Ct5NM34koJNJ382uITN0GEAfIuuiSCc1+Vw40ZYjmylwo HDxaGmh3jAV9GLpekAJ67JW13EJW5AxwIkEiprF6r5UrY1WEAcAAGRcBGzBMkYFkJP0/ 8wPISfDEbQH9AttmnHe9rO/TNENevz603LvPNpYiIBrMZVcblW3OF22Qoei7+aywpXDh a52QCJDLEzxSAqnMTIn/x5hu0uZcNdGimc+ztsVuA8qHqkDmkjIMP6Eke5xD0+P0Id4e A56bqKQ8DndHDPS1vzFdp6Bl7wZ26IDm/C1t1pb68s+62YIUQLD0aClXIomeDFtWSaU8 UXdw== X-Forwarded-Encrypted: i=1; AJvYcCVMqU3/GbZvH3IeArQN47G8YzWlYoxwU1vvo7BAWqgulEoWOI8Eqdd6iiFQSfVhI9it6gBTgJzM2qM=@vger.kernel.org X-Gm-Message-State: AOJu0YyK9eFmc4ehfeBqNIN1sztJA798tG11mHcbNcmlntbii36e3bsw jMY6jEMIM2F56TT3MuHVfFdnqCoF/Z0MQ+AiDacwY/VsoDfPWgzPUTu/ X-Gm-Gg: ASbGnctwikDk67lHTuOmOSQCKDYBdHo+cfssOHH2iu7nYxFqnplzEStDqzfZqQRGGzT 2SK3aixGdVUTKhtqM2/BHHMby4LZPyfdLi9AmB/E/3ZaLkPtk3AXfiDJQf9oaMD84ylt7zvQbnl goHf/W9k+Tzfd21F05h2JcK+vE0m6jcQbtvn4ECeJVK+eD0riv124FOgRtDxbF/0yI+b321fVMj QbBVDef+xjB7XK8M95R8Ab6+I2hfreTga820RHaVEUBCsT/HFLq0L5+hTeanKlrgT92uADDbKCt zTPpirSD/F9ULG6Tpzgo3S+kjYGydnmZ1seG/rTUwWezeJI0PiU4o8CAE43eH/HDfJZCAPCi+4c SFXFOMk4= X-Google-Smtp-Source: AGHT+IFRCuu4cMYQof8Df+JoU1vvBbDbst0D/wIifD7pQn/OeD7hJZhbK404iYgZEQ47fpKgebP2Ig== X-Received: by 2002:a05:6a00:9a4:b0:736:a6e0:e66d with SMTP id d2e1a72fcca58-74827e7ea01mr1995951b3a.6.1749166963189; Thu, 05 Jun 2025 16:42:43 -0700 (PDT) Received: from deb-101020-bm01.dtc.local ([149.97.161.244]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7482b0847b9sm213916b3a.104.2025.06.05.16.42.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Jun 2025 16:42:42 -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 , Fan Ni Subject: [QEMU PATCH v3 7/9] cxl-mailbox-utils: 0x5603 - FMAPI Get DC Region Extent Lists Date: Thu, 5 Jun 2025 23:42:21 +0000 Message-ID: <20250605234227.970187-8-anisa.su887@gmail.com> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20250605234227.970187-1-anisa.su887@gmail.com> References: <20250605234227.970187-1-anisa.su887@gmail.com> Precedence: bulk X-Mailing-List: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Anisa Su FM DCD Management command 0x5603 implemented per CXL r3.2 Spec Section 7.6.7.6.4 Very similar to previously implemented command 0x4801. Reviewed-by: Fan Ni Signed-off-by: Anisa Su --- hw/cxl/cxl-mailbox-utils.c | 76 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) diff --git a/hw/cxl/cxl-mailbox-utils.c b/hw/cxl/cxl-mailbox-utils.c index 47b1509a0e..004e502b22 100644 --- a/hw/cxl/cxl-mailbox-utils.c +++ b/hw/cxl/cxl-mailbox-utils.c @@ -122,6 +122,7 @@ enum { #define GET_DCD_INFO 0x0 #define GET_HOST_DC_REGION_CONFIG 0x1 #define SET_DC_REGION_CONFIG 0x2 + #define GET_DC_REGION_EXTENT_LIST 0x3 }; /* CCI Message Format CXL r3.1 Figure 7-19 */ @@ -3466,6 +3467,79 @@ static CXLRetCode cmd_fm_set_dc_region_config(const struct cxl_cmd *cmd, return CXL_MBOX_SUCCESS; } +/* CXL r3.2 section 7.6.7.6.4 Get DC Region Extent Lists (Opcode 5603h) */ +static CXLRetCode cmd_fm_get_dc_region_extent_list(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 rsvd[2]; + uint32_t extent_cnt; + uint32_t start_extent_id; + } QEMU_PACKED *in = (void *)payload_in; + struct { + uint16_t host_id; + uint8_t rsvd[2]; + uint32_t start_extent_id; + uint32_t extents_returned; + uint32_t total_extents; + uint32_t list_generation_num; + uint8_t rsvd2[4]; + CXLDCExtentRaw records[]; + } QEMU_PACKED *out = (void *)payload_out; + QEMU_BUILD_BUG_ON(sizeof(*in) != 0xc); + CXLType3Dev *ct3d = CXL_TYPE3(cci->d); + CXLDCExtent *ent; + CXLDCExtentRaw *out_rec; + uint16_t record_count = 0, record_done = 0, i = 0; + uint16_t out_pl_len, max_size; + + if (in->host_id != 0) { + return CXL_MBOX_INVALID_INPUT; + } + + if (in->start_extent_id > ct3d->dc.nr_extents_accepted) { + return CXL_MBOX_INVALID_INPUT; + } + + record_count = MIN(in->extent_cnt, + ct3d->dc.nr_extents_accepted - in->start_extent_id); + max_size = CXL_MAILBOX_MAX_PAYLOAD_SIZE - sizeof(*out); + record_count = MIN(record_count, max_size / sizeof(out->records[0])); + out_pl_len = sizeof(*out) + record_count * sizeof(out->records[0]); + + stw_le_p(&out->host_id, in->host_id); + stl_le_p(&out->start_extent_id, in->start_extent_id); + stl_le_p(&out->extents_returned, record_count); + stl_le_p(&out->total_extents, ct3d->dc.nr_extents_accepted); + stl_le_p(&out->list_generation_num, ct3d->dc.ext_list_gen_seq); + + if (record_count > 0) { + QTAILQ_FOREACH(ent, &ct3d->dc.extents, node) { + if (i++ < in->start_extent_id) { + continue; + } + out_rec = &out->records[record_done]; + stq_le_p(&out_rec->start_dpa, ent->start_dpa); + stq_le_p(&out_rec->len, ent->len); + memcpy(&out_rec->tag, ent->tag, 0x10); + stw_le_p(&out_rec->shared_seq, ent->shared_seq); + + record_done++; + if (record_done == record_count) { + break; + } + } + } + + *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 }, @@ -3591,6 +3665,8 @@ static const struct cxl_cmd cxl_cmd_set_fm_dcd[256][256] = { CXL_MBOX_CONFIG_CHANGE_CXL_RESET | CXL_MBOX_IMMEDIATE_CONFIG_CHANGE | CXL_MBOX_IMMEDIATE_DATA_CHANGE) }, + [FMAPI_DCD_MGMT][GET_DC_REGION_EXTENT_LIST] = { "GET_DC_REGION_EXTENT_LIST", + cmd_fm_get_dc_region_extent_list, 12, 0 }, }; /* -- 2.47.2