From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:54213) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Ur7rp-0002dx-8B for qemu-devel@nongnu.org; Mon, 24 Jun 2013 10:35:46 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Ur7rm-0006dE-4c for qemu-devel@nongnu.org; Mon, 24 Jun 2013 10:35:41 -0400 Received: from mx1.redhat.com ([209.132.183.28]:29137) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Ur7rl-0006d7-Sp for qemu-devel@nongnu.org; Mon, 24 Jun 2013 10:35:38 -0400 Message-ID: <51C85932.90003@redhat.com> Date: Mon, 24 Jun 2013 16:35:30 +0200 From: Paolo Bonzini MIME-Version: 1.0 References: <1371934712-11714-1-git-send-email-pl@kamp.de> <1371934712-11714-2-git-send-email-pl@kamp.de> In-Reply-To: <1371934712-11714-2-git-send-email-pl@kamp.de> Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH 1/8] iscsi: add logical block provisioning information to iscsilun List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Peter Lieven Cc: Kevin Wolf , ronniesahlberg@gmail.com, qemu-devel@nongnu.org, Stefan Hajnoczi Il 22/06/2013 22:58, Peter Lieven ha scritto: > Signed-off-by: Peter Lieven > --- > block/iscsi.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 47 insertions(+) > > diff --git a/block/iscsi.c b/block/iscsi.c > index 0bbf0b1..a38a1bf 100644 > --- a/block/iscsi.c > +++ b/block/iscsi.c > @@ -49,6 +49,11 @@ typedef struct IscsiLun { > uint64_t num_blocks; > int events; > QEMUTimer *nop_timer; > + uint8_t lbpme; > + uint8_t lbprz; > + uint8_t lbpu; > + uint8_t lbpws; > + uint8_t lbpws10; > } IscsiLun; > > typedef struct IscsiAIOCB { > @@ -948,6 +953,8 @@ static int iscsi_readcapacity_sync(IscsiLun *iscsilun) > } else { > iscsilun->block_size = rc16->block_length; > iscsilun->num_blocks = rc16->returned_lba + 1; > + iscsilun->lbpme = rc16->lbpme; > + iscsilun->lbprz = rc16->lbprz; > } > } > break; > @@ -1130,6 +1137,46 @@ static int iscsi_open(BlockDriverState *bs, QDict *options, int flags) > bs->sg = 1; > } > > + if (iscsilun->lbpme) { > + struct scsi_inquiry_logical_block_provisioning *inq_lbp; > + int full_size; > + > + task = iscsi_inquiry_sync(iscsi, iscsilun->lun, 1, > + SCSI_INQUIRY_PAGECODE_LOGICAL_BLOCK_PROVISIONING, > + 64); > + if (task == NULL || task->status != SCSI_STATUS_GOOD) { > + error_report("iSCSI: Inquiry command failed : %s", > + iscsi_get_error(iscsilun->iscsi)); > + ret = -EINVAL; > + goto out; > + } > + full_size = scsi_datain_getfullsize(task); > + if (full_size > task->datain.size) { > + scsi_free_scsi_task(task); > + > + /* we need more data for the full list */ > + task = iscsi_inquiry_sync(iscsi, iscsilun->lun, 1, > + SCSI_INQUIRY_PAGECODE_LOGICAL_BLOCK_PROVISIONING, > + full_size); > + if (task == NULL || task->status != SCSI_STATUS_GOOD) { > + error_report("iSCSI: Inquiry command failed : %s", > + iscsi_get_error(iscsilun->iscsi)); > + ret = -EINVAL; > + goto out; > + } > + } > + > + inq_lbp = scsi_datain_unmarshall(task); > + if (inq_lbp == NULL) { > + error_report("iSCSI: failed to unmarshall inquiry datain blob"); > + ret = -EINVAL; > + goto out; > + } > + iscsilun->lbpu = inq_lbp->lbpu; > + iscsilun->lbpws = inq_lbp->lbpws; > + iscsilun->lbpws10 = inq_lbp->lbpws10; > + } > + > #if defined(LIBISCSI_FEATURE_NOP_COUNTER) > /* Set up a timer for sending out iSCSI NOPs */ > iscsilun->nop_timer = qemu_new_timer_ms(rt_clock, iscsi_nop_timed_event, iscsilun); > Reviewed-by: Paolo Bonzini