On Tue, Aug 4, 2015 at 8:10 PM, Sagi Grimberg sa...@dev.mellanox.co.il wrote:
Why SIZE_4K and not PAGE_SIZE?
Yes, I'll change that to PAGE_SIZE.
Thanks.
Would non-4KB pages (e.g. PPC 64KB) be an issue? Would this work between
hosts with different page sizes?
iser was always using 4K
Why SIZE_4K and not PAGE_SIZE?
Yes, I'll change that to PAGE_SIZE.
Thanks.
Would non-4KB pages (e.g. PPC 64KB) be an issue? Would this work between hosts
with different page sizes?
iser was always using 4K segments for reasons I don't perfectly
understand. Maybe Or can comment on this?
On Aug 2, 2015, at 4:01 AM, Sagi Grimberg sa...@dev.mellanox.co.il wrote:
+static void
+iser_calc_scsi_params(struct iser_conn *iser_conn,
+ unsigned int max_sectors)
+{
+struct iser_device *device = iser_conn-ib_conn.device;
+unsigned short sg_tablesize,
+static void
+iser_calc_scsi_params(struct iser_conn *iser_conn,
+ unsigned int max_sectors)
+{
+struct iser_device *device = iser_conn-ib_conn.device;
+unsigned short sg_tablesize, sup_sg_tablesize;
+
+sg_tablesize = DIV_ROUND_UP(max_sectors * 512, SIZE_4K);
+
On 7/30/2015 1:22 PM, Or Gerlitz wrote:
On Thu, Jul 30, 2015 at 11:06 AM, Sagi Grimberg sa...@mellanox.com wrote:
iser support up to 512KB data transfer in a single scsi
command. In order to support up to 8MB, iser needs to pre-allocate
larger memory regions and larger page vectors.
We
On 7/30/2015 3:06 AM, Sagi Grimberg wrote:
iser support up to 512KB data transfer in a single scsi
command. In order to support up to 8MB, iser needs to pre-allocate
larger memory regions and larger page vectors.
Given that a few target implementations don't support data transfers
of more than
