{"id":2196618,"url":"http://patchwork.ozlabs.org/api/1.0/patches/2196618/?format=json","project":{"id":28,"url":"http://patchwork.ozlabs.org/api/1.0/projects/28/?format=json","name":"Linux PCI development","link_name":"linux-pci","list_id":"linux-pci.vger.kernel.org","list_email":"linux-pci@vger.kernel.org","web_url":null,"scm_url":null,"webscm_url":null},"msgid":"<20260215150334.3391943-2-den@valinux.co.jp>","date":"2026-02-15T15:03:32","name":"[1/3] PCI: endpoint: pci-epf-test: Advertise dynamic inbound mapping support","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"bd5e5b70b9f62e33728ed76c28a293b4ed76d987","submitter":{"id":91573,"url":"http://patchwork.ozlabs.org/api/1.0/people/91573/?format=json","name":"Koichiro Den","email":"den@valinux.co.jp"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-pci/patch/20260215150334.3391943-2-den@valinux.co.jp/mbox/","series":[{"id":492222,"url":"http://patchwork.ozlabs.org/api/1.0/series/492222/?format=json","date":"2026-02-15T15:03:34","name":"PCI: endpoint tests: Make doorbell test capability-aware","version":1,"mbox":"http://patchwork.ozlabs.org/series/492222/mbox/"}],"check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2196618/checks/","tags":{},"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-pci@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=valinux.co.jp header.i=@valinux.co.jp\n header.a=rsa-sha256 header.s=selector1 header.b=keO3O9Sq;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n 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bh=ZrR2uLeIdlr3v2FJx/c56hEHtAdxPyxjEy8+4eIVw3I=;\n b=keO3O9Sq4xsr7erSxoekpY4C7m0kyiKawFSVXH7hxgfLdDoXWky9Rhlw4adeYTLlR1jYGjjccG7BXzWtOcTjkz46vxOY1KrytEoG8eq2Y6ff7v0Qck1RJDJMn0XddzkZd7NXmpQCsxwsOFWmilAdMK+WsUeqI/balep35tsOPcc=","From":"Koichiro Den ","To":"mani@kernel.org,\n\tkwilczynski@kernel.org,\n\tkishon@kernel.org,\n\tbhelgaas@google.com,\n\tshuah@kernel.org,\n\tcassel@kernel.org,\n\tFrank.Li@nxp.com","Cc":"linux-pci@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org,\n\tlinux-kselftest@vger.kernel.org","Subject":"[PATCH 1/3] PCI: endpoint: pci-epf-test: Advertise dynamic inbound\n mapping support","Date":"Mon, 16 Feb 2026 00:03:32 +0900","Message-ID":"<20260215150334.3391943-2-den@valinux.co.jp>","X-Mailer":"git-send-email 2.51.0","In-Reply-To":"<20260215150334.3391943-1-den@valinux.co.jp>","References":"<20260215150334.3391943-1-den@valinux.co.jp>","Content-Transfer-Encoding":"8bit","Content-Type":"text/plain","X-ClientProxiedBy":"TYCP286CA0169.JPNP286.PROD.OUTLOOK.COM\n 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d6d84ec6-5007-4437-114c-08de6ca3676d","X-MS-Exchange-CrossTenant-AuthSource":"TY7P286MB7722.JPNP286.PROD.OUTLOOK.COM","X-MS-Exchange-CrossTenant-AuthAs":"Internal","X-MS-Exchange-CrossTenant-OriginalArrivalTime":"15 Feb 2026 15:03:40.4319\n (UTC)","X-MS-Exchange-CrossTenant-FromEntityHeader":"Hosted","X-MS-Exchange-CrossTenant-Id":"7a57bee8-f73d-4c5f-a4f7-d72c91c8c111","X-MS-Exchange-CrossTenant-MailboxType":"HOSTED","X-MS-Exchange-CrossTenant-UserPrincipalName":"\n TahlkCE8yRUFpM8z5K5MjDQlzfHWe2p/7YAVajD3WGZ3Oj9c+/y7cD12Pwmm5HXnoXCi36A80gSWdV2abeDa/w==","X-MS-Exchange-Transport-CrossTenantHeadersStamped":"TY4P286MB7240"},"content":"The doorbell test requires the EPC driver to support dynamic inbound\nmapping so the host can map the doorbell target address into a BAR\naperture.\n\nExpose epc_features->dynamic_inbound_mapping via a new\nCAP_DYNAMIC_INBOUND_MAPPING bit in the pci-epf-test capability register,\nso the host-side pci_endpoint_test driver can detect missing support and\nreturn -EOPNOTSUPP instead of running the test fruitlessly.\n\nSuggested-by: Niklas Cassel \nSigned-off-by: Koichiro Den \n---\n drivers/pci/endpoint/functions/pci-epf-test.c | 4 ++++\n 1 file changed, 4 insertions(+)","diff":"diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c\nindex 0cb7af0919dc..c0db207ff143 100644\n--- a/drivers/pci/endpoint/functions/pci-epf-test.c\n+++ b/drivers/pci/endpoint/functions/pci-epf-test.c\n@@ -64,6 +64,7 @@\n #define CAP_MSIX\t\t\tBIT(2)\n #define CAP_INTX\t\t\tBIT(3)\n #define CAP_SUBRANGE_MAPPING\t\tBIT(4)\n+#define CAP_DYNAMIC_INBOUND_MAPPING\tBIT(5)\n \n #define PCI_EPF_TEST_BAR_SUBRANGE_NSUB\t2\n \n@@ -1102,6 +1103,9 @@ static void pci_epf_test_set_capabilities(struct pci_epf *epf)\n \tif (epf_test->epc_features->intx_capable)\n \t\tcaps |= CAP_INTX;\n \n+\tif (epf_test->epc_features->dynamic_inbound_mapping)\n+\t\tcaps |= CAP_DYNAMIC_INBOUND_MAPPING;\n+\n \tif (epf_test->epc_features->dynamic_inbound_mapping &&\n \t epf_test->epc_features->subrange_mapping)\n \t\tcaps |= CAP_SUBRANGE_MAPPING;\n","prefixes":["1/3"]}