From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E28E5242D7C; Tue, 20 May 2025 14:11:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747750283; cv=none; b=qJF4NBe+xqX81glNyDub5pxwU0O3RYT2rtcm+xy3KR7OZPn8Y0G0Klkf384W8H1ro2V+A3qVjQPS+wCrLul2Inozw1a4BJ79NGmbMtCfxVR4UXP6odXZ6Vq/MYkFDsuc9JMF9wEyGDJc4V63R4RbkuhM8eh45rxHjgQuCR29+Vo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747750283; c=relaxed/simple; bh=AKcpQmC5t9EaHsSu97TVXdWsBVD1JHPalepaUo0AqCA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=nUTgDGwUusry9ypCvnpogn1qOJEy/waSIZBjLv3Xlh3Svf5qrVvtDfvu2avBLTVpYMBSwfJ8jOfcmfNmSD9/SUx8XTYfqYBQ0byA3GtY9RHKFVptoA5SG6dylevX0Sws8VQAP/ac+ePzwFRRzeJEsCAqMZgFODdQ4iIXwn+kZuo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=simq6ScU; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="simq6ScU" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 64C2CC4CEE9; Tue, 20 May 2025 14:11:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1747750282; bh=AKcpQmC5t9EaHsSu97TVXdWsBVD1JHPalepaUo0AqCA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=simq6ScU+hSyeBnmqn5h/CScCZ2g9ylezPrytk03xPyNaN95+rfJDwSdwNgebVqhm XU9/UM6VkZfHKmyhBFppR4ZJPxSoEQXyJavpe6Sf2zSi5UcRBkuB46SXredYcv7HM7 eQpCgY8ykBBaKMtnS3v94mLlHWhlgJ1g+R83PD5c= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Michael Kelley , Jakub Kicinski Subject: [PATCH 6.12 100/143] Drivers: hv: Allow vmbus_sendpacket_mpb_desc() to create multiple ranges Date: Tue, 20 May 2025 15:50:55 +0200 Message-ID: <20250520125813.982532166@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250520125810.036375422@linuxfoundation.org> References: <20250520125810.036375422@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Michael Kelley commit 380b75d3078626aadd0817de61f3143f5db6e393 upstream. vmbus_sendpacket_mpb_desc() is currently used only by the storvsc driver and is hardcoded to create a single GPA range. To allow it to also be used by the netvsc driver to create multiple GPA ranges, no longer hardcode as having a single GPA range. Allow the calling driver to specify the rangecount in the supplied descriptor. Update the storvsc driver to reflect this new approach. Cc: # 6.1.x Signed-off-by: Michael Kelley Link: https://patch.msgid.link/20250513000604.1396-2-mhklinux@outlook.com Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- drivers/hv/channel.c | 6 +++--- drivers/scsi/storvsc_drv.c | 1 + 2 files changed, 4 insertions(+), 3 deletions(-) --- a/drivers/hv/channel.c +++ b/drivers/hv/channel.c @@ -1136,9 +1136,10 @@ int vmbus_sendpacket_pagebuffer(struct v EXPORT_SYMBOL_GPL(vmbus_sendpacket_pagebuffer); /* - * vmbus_sendpacket_multipagebuffer - Send a multi-page buffer packet + * vmbus_sendpacket_mpb_desc - Send one or more multi-page buffer packets * using a GPADL Direct packet type. - * The buffer includes the vmbus descriptor. + * The desc argument must include space for the VMBus descriptor. The + * rangecount field must already be set. */ int vmbus_sendpacket_mpb_desc(struct vmbus_channel *channel, struct vmbus_packet_mpb_array *desc, @@ -1160,7 +1161,6 @@ int vmbus_sendpacket_mpb_desc(struct vmb desc->length8 = (u16)(packetlen_aligned >> 3); desc->transactionid = VMBUS_RQST_ERROR; /* will be updated in hv_ringbuffer_write() */ desc->reserved = 0; - desc->rangecount = 1; bufferlist[0].iov_base = desc; bufferlist[0].iov_len = desc_size; --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -1819,6 +1819,7 @@ static int storvsc_queuecommand(struct S return SCSI_MLQUEUE_DEVICE_BUSY; } + payload->rangecount = 1; payload->range.len = length; payload->range.offset = offset_in_hvpg;