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[net] Gracefully handle shared e1000/1000e driver PCI ID's

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Both the old e1000 driver and the new e1000e driver can drive some
PCI-Express e1000 cards, and we should avoid ambiguity about which
driver will pick up the support for those cards when both drivers are
enabled.

This solves the problem by having the old driver support those cards if
the new driver isn't configured, but otherwise ceding support for PCI
Express versions of the e1000 chipset to the newer driver.  Thus
allowing both legacy configurations where only the old driver is active
(and handles all chips it knows about) and the new configuration with
the new driver handling the more modern PCIE variants.

Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Linus Torvalds 2008-01-31 00:30:15 +11:00
parent 44c45eb911
commit 60e233172e
2 changed files with 37 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/net/Kconfig
View File

@ -1992,7 +1992,7 @@ config E1000_DISABLE_PACKET_SPLIT
config E1000E
tristate "Intel(R) PRO/1000 PCI-Express Gigabit Ethernet support"
depends on PCI && EXPERIMENTAL
depends on PCI
---help---
This driver supports the PCI-Express Intel(R) PRO/1000 gigabit
ethernet family of adapters. For PCI or PCI-X e1000 adapters,
@ -2009,6 +2009,9 @@ config E1000E
To compile this driver as a module, choose M here. The module
will be called e1000e.
config E1000E_ENABLED
def_bool E1000E != n
config IP1000
tristate "IP1000 Gigabit Ethernet support"
depends on PCI && EXPERIMENTAL

60
drivers/net/e1000/e1000_main.c
View File

@ -47,6 +47,12 @@ static const char e1000_copyright[] = "Copyright (c) 1999-2006 Intel Corporation
* Macro expands to...
* {PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)}
*/
#ifdef CONFIG_E1000E_ENABLED
#define PCIE(x)
#else
#define PCIE(x) x,
#endif
static struct pci_device_id e1000_pci_tbl[] = {
INTEL_E1000_ETHERNET_DEVICE(0x1000),
INTEL_E1000_ETHERNET_DEVICE(0x1001),
@ -73,14 +79,14 @@ static struct pci_device_id e1000_pci_tbl[] = {
INTEL_E1000_ETHERNET_DEVICE(0x1026),
INTEL_E1000_ETHERNET_DEVICE(0x1027),
INTEL_E1000_ETHERNET_DEVICE(0x1028),
INTEL_E1000_ETHERNET_DEVICE(0x1049),
INTEL_E1000_ETHERNET_DEVICE(0x104A),
INTEL_E1000_ETHERNET_DEVICE(0x104B),
INTEL_E1000_ETHERNET_DEVICE(0x104C),
INTEL_E1000_ETHERNET_DEVICE(0x104D),
INTEL_E1000_ETHERNET_DEVICE(0x105E),
INTEL_E1000_ETHERNET_DEVICE(0x105F),
INTEL_E1000_ETHERNET_DEVICE(0x1060),
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x1049))
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x104A))
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x104B))
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x104C))
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x104D))
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x105E))
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x105F))
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x1060))
INTEL_E1000_ETHERNET_DEVICE(0x1075),
INTEL_E1000_ETHERNET_DEVICE(0x1076),
INTEL_E1000_ETHERNET_DEVICE(0x1077),
@ -89,28 +95,28 @@ static struct pci_device_id e1000_pci_tbl[] = {
INTEL_E1000_ETHERNET_DEVICE(0x107A),
INTEL_E1000_ETHERNET_DEVICE(0x107B),
INTEL_E1000_ETHERNET_DEVICE(0x107C),
INTEL_E1000_ETHERNET_DEVICE(0x107D),
INTEL_E1000_ETHERNET_DEVICE(0x107E),
INTEL_E1000_ETHERNET_DEVICE(0x107F),
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x107D))
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x107E))
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x107F))
INTEL_E1000_ETHERNET_DEVICE(0x108A),
INTEL_E1000_ETHERNET_DEVICE(0x108B),
INTEL_E1000_ETHERNET_DEVICE(0x108C),
INTEL_E1000_ETHERNET_DEVICE(0x1096),
INTEL_E1000_ETHERNET_DEVICE(0x1098),
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x108B))
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x108C))
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x1096))
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x1098))
INTEL_E1000_ETHERNET_DEVICE(0x1099),
INTEL_E1000_ETHERNET_DEVICE(0x109A),
INTEL_E1000_ETHERNET_DEVICE(0x10A4),
INTEL_E1000_ETHERNET_DEVICE(0x10A5),
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x109A))
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x10A4))
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x10A5))
INTEL_E1000_ETHERNET_DEVICE(0x10B5),
INTEL_E1000_ETHERNET_DEVICE(0x10B9),
INTEL_E1000_ETHERNET_DEVICE(0x10BA),
INTEL_E1000_ETHERNET_DEVICE(0x10BB),
INTEL_E1000_ETHERNET_DEVICE(0x10BC),
INTEL_E1000_ETHERNET_DEVICE(0x10C4),
INTEL_E1000_ETHERNET_DEVICE(0x10C5),
INTEL_E1000_ETHERNET_DEVICE(0x10D5),
INTEL_E1000_ETHERNET_DEVICE(0x10D9),
INTEL_E1000_ETHERNET_DEVICE(0x10DA),
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x10B9))
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x10BA))
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x10BB))
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x10BC))
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x10C4))
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x10C5))
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x10D5))
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x10D9))
PCIE( INTEL_E1000_ETHERNET_DEVICE(0x10DA))
/* required last entry */
{0,}
};