On Thu, 2006-08-17 at 16:11, Roland Dreier wrote:
[snip...]
> diff --git a/drivers/infiniband/hw/ehca/ehca_sqp.c b/drivers/infiniband/hw/ehca/ehca_sqp.c
> new file mode 100644
> index 0000000..d2c5552
> --- /dev/null
> +++ b/drivers/infiniband/hw/ehca/ehca_sqp.c
> @@ -0,0 +1,123 @@
> +/*
> + * IBM eServer eHCA Infiniband device driver for Linux on POWER
> + *
> + * SQP functions
> + *
> + * Authors: Khadija Souissi <[email protected]>
> + * Heiko J Schick <[email protected]>
[snip...]
> +
> +extern int ehca_create_aqp1(struct ehca_shca *shca, struct ehca_sport *sport);
> +extern int ehca_destroy_aqp1(struct ehca_sport *sport);
> +
> +extern int ehca_port_act_time;
> +
> +/**
> + * ehca_define_sqp - Defines special queue pair 1 (GSI QP). When special queue
> + * pair is created successfully, the corresponding port gets active.
> + *
> + * Define Special Queue pair 0 (SMI QP) is still not supported.
> + *
> + * @qp_init_attr: Queue pair init attributes with port and queue pair type
> + */
> +
> +u64 ehca_define_sqp(struct ehca_shca *shca,
> + struct ehca_qp *ehca_qp,
> + struct ib_qp_init_attr *qp_init_attr)
> +{
> +
> + u32 pma_qp_nr = 0;
> + u32 bma_qp_nr = 0;
> + u64 ret = H_SUCCESS;
> + u8 port = qp_init_attr->port_num;
> + int counter = 0;
> +
> + EDEB_EN(7, "port=%x qp_type=%x",
> + port, qp_init_attr->qp_type);
> +
> + shca->sport[port - 1].port_state = IB_PORT_DOWN;
> +
> + switch (qp_init_attr->qp_type) {
> + case IB_QPT_SMI:
> + /* function not supported yet */
> + break;
> + case IB_QPT_GSI:
> + ret = hipz_h_define_aqp1(shca->ipz_hca_handle,
> + ehca_qp->ipz_qp_handle,
> + ehca_qp->galpas.kernel,
> + (u32) qp_init_attr->port_num,
> + &pma_qp_nr, &bma_qp_nr);
> +
> + if (ret != H_SUCCESS) {
> + EDEB_ERR(4, "Can't define AQP1 for port %x. rc=%lx",
> + port, ret);
> + goto ehca_define_aqp1;
> + }
> + break;
> + default:
> + ret = H_PARAMETER;
> + goto ehca_define_aqp1;
> + }
> +
> + while ((shca->sport[port - 1].port_state != IB_PORT_ACTIVE) &&
> + (counter < ehca_port_act_time)) {
> + EDEB(6, "... wait until port %x is active",
> + port);
> + msleep_interruptible(1000);
> + counter++;
> + }
> +
> + if (counter == ehca_port_act_time) {
> + EDEB_ERR(4, "Port %x is not active.", port);
> + ret = H_HARDWARE;
> + }
> +
> +ehca_define_aqp1:
> + EDEB_EX(7, "ret=%lx", ret);
> +
> + return ret;
> +}
I, for one, was hoping that the timer based transition to active for QP1
would have been resolved before being submitted. Any idea on the plan to
resolve this ?
-- Hal
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