From: Alejandro Lucero <alejandro.lucero@netronome.com>
To: dev@dpdk.org
Cc: stable@dpdk.org, anatoly.burakov@intel.com,
maxime.coquelin@redhat.com, ferruh.yigit@intel.com
Subject: [dpdk-stable] [PATCH v3 5/6] net/nfp: check hugepages IOVAs based on DMA mask
Date: Wed, 4 Jul 2018 13:53:57 +0100 [thread overview]
Message-ID: <1530708838-2682-6-git-send-email-alejandro.lucero@netronome.com> (raw)
In-Reply-To: <1530708838-2682-1-git-send-email-alejandro.lucero@netronome.com>
NFP devices can not handle DMA addresses requiring more than
40 bits. This patch uses rte_dev_check_dma_mask with 40 bits
and avoids device initialization if memory out of NFP range.
Signed-off-by: Alejandro Lucero <alejandro.lucero@netronome.com>
---
drivers/net/nfp/nfp_net.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/net/nfp/nfp_net.c b/drivers/net/nfp/nfp_net.c
index d9cd047..5976f37 100644
--- a/drivers/net/nfp/nfp_net.c
+++ b/drivers/net/nfp/nfp_net.c
@@ -2649,6 +2649,14 @@ uint32_t nfp_net_txq_full(struct nfp_net_txq *txq)
pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
+ /* NFP can not handle DMA addresses requiring more than 40 bits */
+ if (rte_eth_dev_check_dma_mask(40) < 0) {
+ RTE_LOG(INFO, PMD, "device %s can not be used:",
+ pci_dev->device.name);
+ RTE_LOG(INFO, PMD, "\trestricted dma mask to 40 bits!\n");
+ return -ENODEV;
+ };
+
if ((pci_dev->id.device_id == PCI_DEVICE_ID_NFP4000_PF_NIC) ||
(pci_dev->id.device_id == PCI_DEVICE_ID_NFP6000_PF_NIC)) {
port = get_pf_port_number(eth_dev->data->name);
--
1.9.1
next prev parent reply other threads:[~2018-07-04 12:54 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-04 12:53 [dpdk-stable] [PATCH v3 0/6] use IOVAs check " Alejandro Lucero
2018-07-04 12:53 ` [dpdk-stable] [PATCH v3 1/6] mem: add function for checking memsegs IOVAs addresses Alejandro Lucero
2018-07-10 8:56 ` Eelco Chaudron
2018-07-10 9:34 ` Alejandro Lucero
2018-07-10 10:06 ` Eelco Chaudron
2018-07-10 10:52 ` Alejandro Lucero
2018-07-10 11:14 ` Eelco Chaudron
2018-07-10 11:33 ` Burakov, Anatoly
2018-07-10 11:43 ` Alejandro Lucero
2018-07-10 11:55 ` Eelco Chaudron
2018-07-10 11:40 ` Alejandro Lucero
2018-07-04 12:53 ` [dpdk-stable] [PATCH v3 2/6] ethdev: add function for checking IOVAs by a device Alejandro Lucero
2018-07-07 17:30 ` [dpdk-stable] [dpdk-dev] " Andrew Rybchenko
2018-07-10 8:57 ` [dpdk-stable] " Eelco Chaudron
2018-07-10 9:42 ` Alejandro Lucero
2018-07-10 9:44 ` Alejandro Lucero
2018-07-04 12:53 ` [dpdk-stable] [PATCH v3 3/6] bus/pci: use IOVAs check when setting IOVA mode Alejandro Lucero
2018-07-10 10:14 ` Eelco Chaudron
2018-07-10 15:37 ` Alejandro Lucero
2018-07-04 12:53 ` [dpdk-stable] [PATCH v3 4/6] mem: use address hint for mapping hugepages Alejandro Lucero
2018-07-10 11:15 ` Eelco Chaudron
2018-07-04 12:53 ` Alejandro Lucero [this message]
2018-07-10 10:17 ` [dpdk-stable] [PATCH v3 5/6] net/nfp: check hugepages IOVAs based on DMA mask Eelco Chaudron
2018-07-04 12:53 ` [dpdk-stable] [PATCH v3 6/6] net/nfp: support IOVA VA mode Alejandro Lucero
2018-07-10 10:18 ` Eelco Chaudron
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