From fcafcbcb6fd14c0707ca8c01079d992361474a53 Mon Sep 17 00:00:00 2001 From: Scott Long Date: Sun, 25 Jan 2015 22:29:23 +0000 Subject: [PATCH] Fix the ioctl interface to properly support fetching the header of regular and extended config pages. Obtained from: Netflix, Inc. MFC after: 3 days --- sys/dev/mps/mps.c | 14 ++++++++++---- sys/dev/mps/mps_user.c | 4 ++++ 2 files changed, 14 insertions(+), 4 deletions(-) diff --git a/sys/dev/mps/mps.c b/sys/dev/mps/mps.c index 20c7f75308d2..0957602ccc19 100644 --- a/sys/dev/mps/mps.c +++ b/sys/dev/mps/mps.c @@ -2621,9 +2621,12 @@ mps_read_config_page(struct mps_softc *sc, struct mps_config_params *params) cm->cm_data = params->buffer; cm->cm_length = params->length; - cm->cm_sge = &req->PageBufferSGE; - cm->cm_sglsize = sizeof(MPI2_SGE_IO_UNION); - cm->cm_flags = MPS_CM_FLAGS_SGE_SIMPLE | MPS_CM_FLAGS_DATAIN; + if (cm->cm_data != NULL) { + cm->cm_sge = &req->PageBufferSGE; + cm->cm_sglsize = sizeof(MPI2_SGE_IO_UNION); + cm->cm_flags = MPS_CM_FLAGS_SGE_SIMPLE | MPS_CM_FLAGS_DATAIN; + } else + cm->cm_sge = NULL; cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE; cm->cm_complete_data = params; @@ -2680,9 +2683,12 @@ mps_config_complete(struct mps_softc *sc, struct mps_command *cm) goto done; } params->status = reply->IOCStatus; - if (params->hdr.Ext.ExtPageType != 0) { + if (params->hdr.Struct.PageType == MPI2_CONFIG_PAGETYPE_EXTENDED) { params->hdr.Ext.ExtPageType = reply->ExtPageType; params->hdr.Ext.ExtPageLength = reply->ExtPageLength; + params->hdr.Ext.PageType = reply->Header.PageType; + params->hdr.Ext.PageNumber = reply->Header.PageNumber; + params->hdr.Ext.PageVersion = reply->Header.PageVersion; } else { params->hdr.Struct.PageType = reply->Header.PageType; params->hdr.Struct.PageNumber = reply->Header.PageNumber; diff --git a/sys/dev/mps/mps_user.c b/sys/dev/mps/mps_user.c index 16ec4e4e623a..63f78b6ccd46 100644 --- a/sys/dev/mps/mps_user.c +++ b/sys/dev/mps/mps_user.c @@ -309,6 +309,10 @@ mps_user_read_extcfg_header(struct mps_softc *sc, hdr->PageNumber = ext_page_req->header.PageNumber; hdr->ExtPageType = ext_page_req->header.ExtPageType; params.page_address = le32toh(ext_page_req->page_address); + params.buffer = NULL; + params.length = 0; + params.callback = NULL; + if ((error = mps_read_config_page(sc, ¶ms)) != 0) { /* * Leave the request. Without resetting the chip, it's