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From: longli@linuxonhyperv.com
To: Stephen Hemminger <stephen@networkplumber.org>,
	Wei Hu <weh@microsoft.com>
Cc: dev@dpdk.org, Long Li <longli@microsoft.com>, stable@dpdk.org
Subject: [PATCH 3/4] bus/vmbus: Use Hyper-V page size for mapping to UIO pages
Date: Fri, 18 Apr 2025 12:32:49 -0700	[thread overview]
Message-ID: <1745004770-9795-4-git-send-email-longli@linuxonhyperv.com> (raw)
In-Reply-To: <1745004770-9795-1-git-send-email-longli@linuxonhyperv.com>

From: Long Li <longli@microsoft.com>

The interrupt and monitor pages mapped from Hyper-V via kernel are always
4k in sizes. Use Hyper-V page size to map them.

Fixes: 831dba47bd ("bus/vmbus: add Hyper-V virtual bus support")
Cc: stable@dpdk.org
Signed-off-by: Long Li <longli@microsoft.com>
---
 drivers/bus/vmbus/linux/vmbus_uio.c  | 2 +-
 drivers/bus/vmbus/vmbus_common_uio.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/bus/vmbus/linux/vmbus_uio.c b/drivers/bus/vmbus/linux/vmbus_uio.c
index 8edec869ac..fbafc5027d 100644
--- a/drivers/bus/vmbus/linux/vmbus_uio.c
+++ b/drivers/bus/vmbus/linux/vmbus_uio.c
@@ -268,7 +268,7 @@ static int vmbus_uio_map_subchan(const struct rte_vmbus_device *dev,
 	}
 	file_size = sb.st_size;
 
-	if (file_size == 0 || (file_size & (rte_mem_page_size() - 1))) {
+	if (file_size == 0 || (file_size & (HYPERV_PAGE_SIZE - 1))) {
 		VMBUS_LOG(ERR, "incorrect size %s: %zu",
 			  ring_path, file_size);
 
diff --git a/drivers/bus/vmbus/vmbus_common_uio.c b/drivers/bus/vmbus/vmbus_common_uio.c
index d55aee6537..c6e7e07302 100644
--- a/drivers/bus/vmbus/vmbus_common_uio.c
+++ b/drivers/bus/vmbus/vmbus_common_uio.c
@@ -204,7 +204,7 @@ vmbus_uio_map_resource(struct rte_vmbus_device *dev)
 	}
 
 	dev->int_page = (uint32_t *)((char *)uio_res->maps[HV_INT_PAGE_MAP].addr
-				     + (rte_mem_page_size() >> 1));
+				     + (HYPERV_PAGE_SIZE >> 1));
 	dev->monitor_page = uio_res->maps[HV_MON_PAGE_MAP].addr;
 	return 0;
 }
-- 
2.34.1


  parent reply	other threads:[~2025-04-18 19:33 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-18 19:32 [PATCH 0/4] Fix incorrect page size and address caclulations on systems with 64k (or other) page sizes longli
2025-04-18 19:32 ` [PATCH 1/4] bus/vmbus: Align ring buffer data region to system page boundary longli
2025-04-18 19:32 ` [PATCH 2/4] bus/vmbus: Define Hyper-V page size longli
2025-04-18 19:32 ` longli [this message]
2025-04-18 19:32 ` [PATCH 4/4] net/netvsc: Use Hyper-V page size for the driver longli
2025-04-21 15:33 ` [EXTERNAL] [PATCH 0/4] Fix incorrect page size and address caclulations on systems with 64k (or other) page sizes Wei Hu

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