From 54a4de3da65b9c6930a24285e9192a2a5744874a Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Mon, 10 Jun 2013 18:03:17 +0100
Subject: [PATCH] sfc: Store port number in private data, not
net_device::dev_id
We should not use net_device::dev_id to indicate the port number, as
this affects the way the local part of IPv6 addresses is normally
generated.
This field was intended for use where multiple devices may share a
single assigned MAC address and need to have different IPv6 addresses.
Siena's two ports each have their own MAC addresses.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/ethernet/sfc/net_driver.h | 3 ++-
drivers/net/ethernet/sfc/siena.c | 2 +-
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h
index 39d6bd77f0157..9a2914cfd3453 100644
--- a/drivers/net/ethernet/sfc/net_driver.h
+++ b/drivers/net/ethernet/sfc/net_driver.h
@@ -784,6 +784,7 @@ struct efx_nic {
char name[IFNAMSIZ];
struct pci_dev *pci_dev;
+ unsigned int port_num;
const struct efx_nic_type *type;
int legacy_irq;
bool legacy_irq_enabled;
@@ -916,7 +917,7 @@ static inline int efx_dev_registered(struct efx_nic *efx)
static inline unsigned int efx_port_num(struct efx_nic *efx)
{
- return efx->net_dev->dev_id;
+ return efx->port_num;
}
/**
diff --git a/drivers/net/ethernet/sfc/siena.c b/drivers/net/ethernet/sfc/siena.c
index 51669244d1548..8c91775e3c5f1 100644
--- a/drivers/net/ethernet/sfc/siena.c
+++ b/drivers/net/ethernet/sfc/siena.c
@@ -304,7 +304,7 @@ static int siena_probe_nic(struct efx_nic *efx)
}
efx_reado(efx, ®, FR_AZ_CS_DEBUG);
- efx->net_dev->dev_id = EFX_OWORD_FIELD(reg, FRF_CZ_CS_PORT_NUM) - 1;
+ efx->port_num = EFX_OWORD_FIELD(reg, FRF_CZ_CS_PORT_NUM) - 1;
efx_mcdi_init(efx);
--
2.39.5