Esempi in C++ (Cpp) per NPS_PKT_IN_INSTR_BAOFF_DBELLX

Esempio n. 1

File: nitrox_lib.c Progetto: CCNITSilchar/linux

static int nitrox_init_pkt_cmdqs(struct nitrox_device *ndev)
{
	int i, err, size;

	size = ndev->nr_queues * sizeof(struct nitrox_cmdq);
	ndev->pkt_cmdqs = kzalloc(size, GFP_KERNEL);
	if (!ndev->pkt_cmdqs)
		return -ENOMEM;

	for (i = 0; i < ndev->nr_queues; i++) {
		struct nitrox_cmdq *cmdq;
		u64 offset;

		cmdq = &ndev->pkt_cmdqs[i];
		cmdq->ndev = ndev;
		cmdq->qno = i;
		cmdq->instr_size = sizeof(struct nps_pkt_instr);

		offset = NPS_PKT_IN_INSTR_BAOFF_DBELLX(i);
		/* SE ring doorbell address for this queue */
		cmdq->dbell_csr_addr = NITROX_CSR_ADDR(ndev, offset);

		err = cmdq_common_init(cmdq);
		if (err)
			goto pkt_cmdq_fail;
	}
	return 0;

pkt_cmdq_fail:
	nitrox_cleanup_pkt_cmdqs(ndev);
	return err;
}

Esempio n. 2

File: nitrox_hal.c Progetto: EMFPGA/linux_media

static void reset_pkt_input_ring(struct nitrox_device *ndev, int ring)
{
	union nps_pkt_in_instr_ctl pkt_in_ctl;
	union nps_pkt_in_instr_baoff_dbell pkt_in_dbell;
	union nps_pkt_in_done_cnts pkt_in_cnts;
	u64 offset;

	offset = NPS_PKT_IN_INSTR_CTLX(ring);
	/* disable the ring */
	pkt_in_ctl.value = nitrox_read_csr(ndev, offset);
	pkt_in_ctl.s.enb = 0;
	nitrox_write_csr(ndev, offset, pkt_in_ctl.value);
	usleep_range(100, 150);

	/* wait to clear [ENB] */
	do {
		pkt_in_ctl.value = nitrox_read_csr(ndev, offset);
	} while (pkt_in_ctl.s.enb);

	/* clear off door bell counts */
	offset = NPS_PKT_IN_INSTR_BAOFF_DBELLX(ring);
	pkt_in_dbell.value = 0;
	pkt_in_dbell.s.dbell = 0xffffffff;
	nitrox_write_csr(ndev, offset, pkt_in_dbell.value);

	/* clear done counts */
	offset = NPS_PKT_IN_DONE_CNTSX(ring);
	pkt_in_cnts.value = nitrox_read_csr(ndev, offset);
	nitrox_write_csr(ndev, offset, pkt_in_cnts.value);
	usleep_range(50, 100);
}