> -----Original Message-----
> From: Chris Moore
> Sent: Tuesday, November 04, 2014 8:28 AM
> To: target-devel (target-devel@xxxxxxxxxxxxxxx)
> Subject: [PATCH] IB/isert: Adjust CQ size to HW limits
>
>
> This is the isert version of the patch that Minh Tran submitted for iser.
> isert has the same issue of trying to create a CQ with more CQEs than are
> supported by the hardware.
>
> Signed-off-by: Chris Moore <chris.moore@xxxxxxxxxx>
>
Sorry to bother you with this, but I'm unfamiliar with the process. Is there something
I need to do to get this picked up in 3.18?
Thanks,
Chris
> ---
>
> diff --git a/drivers/infiniband/ulp/isert/ib_isert.c
> b/drivers/infiniband/ulp/isert/ib_isert.c
> index 3effa93..f837a23 100644
> --- a/drivers/infiniband/ulp/isert/ib_isert.c
> +++ b/drivers/infiniband/ulp/isert/ib_isert.c
> @@ -225,12 +225,16 @@ isert_create_device_ib_res(struct isert_device
> *device)
> struct isert_cq_desc *cq_desc;
> struct ib_device_attr *dev_attr;
> int ret = 0, i, j;
> + int max_rx_cqe, max_tx_cqe;
>
> dev_attr = &device->dev_attr;
> ret = isert_query_device(ib_dev, dev_attr);
> if (ret)
> return ret;
>
> + max_rx_cqe = min(ISER_MAX_RX_CQ_LEN, dev_attr->max_cqe);
> + max_tx_cqe = min(ISER_MAX_TX_CQ_LEN, dev_attr->max_cqe);
> +
> /* asign function handlers */
> if (dev_attr->device_cap_flags &
> IB_DEVICE_MEM_MGT_EXTENSIONS &&
> dev_attr->device_cap_flags &
> IB_DEVICE_SIGNATURE_HANDOVER) { @@ -272,7 +276,7 @@
> isert_create_device_ib_res(struct isert_device *device)
> isert_cq_rx_callback,
> isert_cq_event_callback,
> (void *)&cq_desc[i],
> - ISER_MAX_RX_CQ_LEN, i);
> + max_rx_cqe, i);
> if (IS_ERR(device->dev_rx_cq[i])) {
> ret = PTR_ERR(device->dev_rx_cq[i]);
> device->dev_rx_cq[i] = NULL;
> @@ -284,7 +288,7 @@ isert_create_device_ib_res(struct isert_device
> *device)
> isert_cq_tx_callback,
> isert_cq_event_callback,
> (void *)&cq_desc[i],
> - ISER_MAX_TX_CQ_LEN, i);
> + max_tx_cqe, i);
> if (IS_ERR(device->dev_tx_cq[i])) {
> ret = PTR_ERR(device->dev_tx_cq[i]);
> device->dev_tx_cq[i] = NULL;
--
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