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qedr: Add LL2 RoCE interface 

Add light L2 interface for RoCE.

Signed-off-by: Rajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Ram Amrani 2016-10-10 13:15:37 +03:00 committed by Doug Ledford
parent afa0e13be7
commit 1d1424c8f8
2 changed files with 34 additions and 2 deletions
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34
drivers/infiniband/hw/qedr/main.c
View File

@ -724,6 +724,38 @@ static void qedr_shutdown(struct qedr_dev *dev)
qedr_remove(dev);
}
static void qedr_mac_address_change(struct qedr_dev *dev)
{
union ib_gid *sgid = &dev->sgid_tbl[0];
u8 guid[8], mac_addr[6];
int rc;
/* Update SGID */
ether_addr_copy(&mac_addr[0], dev->ndev->dev_addr);
guid[0] = mac_addr[0] ^ 2;
guid[1] = mac_addr[1];
guid[2] = mac_addr[2];
guid[3] = 0xff;
guid[4] = 0xfe;
guid[5] = mac_addr[3];
guid[6] = mac_addr[4];
guid[7] = mac_addr[5];
sgid->global.subnet_prefix = cpu_to_be64(0xfe80000000000000LL);
memcpy(&sgid->raw[8], guid, sizeof(guid));
/* Update LL2 */
rc = dev->ops->roce_ll2_set_mac_filter(dev->cdev,
dev->gsi_ll2_mac_address,
dev->ndev->dev_addr);
ether_addr_copy(dev->gsi_ll2_mac_address, dev->ndev->dev_addr);
qedr_ib_dispatch_event(dev, 1, IB_EVENT_GID_CHANGE);
if (rc)
DP_ERR(dev, "Error updating mac filter\n");
}
/* event handling via NIC driver ensures that all the NIC specific
* initialization done before RoCE driver notifies
* event to stack.
@ -741,7 +773,7 @@ static void qedr_notify(struct qedr_dev *dev, enum qede_roce_event event)
qedr_shutdown(dev);
break;
case QEDE_CHANGE_ADDR:
qedr_ib_dispatch_event(dev, 1, IB_EVENT_GID_CHANGE);
qedr_mac_address_change(dev);
break;
default:
pr_err("Event not supported\n");

2
drivers/infiniband/hw/qedr/qedr.h
View File

@ -147,7 +147,7 @@ struct qedr_dev {
u8 dp_level;
u8 num_hwfns;
uint wq_multiplier;
u8 gsi_ll2_mac_address[ETH_ALEN];
};
#define QEDR_MAX_SQ_PBL (0x8000)