Re: [PATCH 3/4] Make Intel e1000 driver legacy I/O port free

Auke Kok
2006-06-07T05:11:13Z

Kenji Kaneshige wrote:
> This patch makes Intel e1000 driver legacy I/O port free.
>
> Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>

(adding netdev and the other e1000 maintainers to cc:)

without sending this to any of the listed e1000 maintainers???? *and* not even
including netdev???

I'm going to take a look at it first, and have some other colleagues look at
this and the impact, which is unclear to me at the moment. Please don't commit
this like this.

Auke

>
> ---
> drivers/net/e1000/e1000.h | 6 +
> drivers/net/e1000/e1000_main.c | 130 ++++++++++++++++++++++-------------------
> 2 files changed, 75 insertions(+), 61 deletions(-)
>
> Index: linux-2.6.17-rc6/drivers/net/e1000/e1000.h
> ===================================================================
> --- linux-2.6.17-rc6.orig/drivers/net/e1000/e1000.h 2006-06-06 21:39:11.000000000 +0900
> +++ linux-2.6.17-rc6/drivers/net/e1000/e1000.h 2006-06-06 21:56:41.000000000 +0900
> @@ -77,8 +77,9 @@
> #define BAR_1 1
> #define BAR_5 5
>
> -#define INTEL_E1000_ETHERNET_DEVICE(device_id) {\
> - PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)}
> +#define E1000_NO_IOPORT (1 << 0)
> +#define INTEL_E1000_ETHERNET_DEVICE(device_id, flags) {\
> + PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id), .driver_data = flags}
>
> struct e1000_adapter;
>
> @@ -338,6 +339,7 @@
> #ifdef NETIF_F_TSO
> boolean_t tso_force;
> #endif
> + int bars; /* BARs to be enabled */
> };
>
>
> Index: linux-2.6.17-rc6/drivers/net/e1000/e1000_main.c
> ===================================================================
> --- linux-2.6.17-rc6.orig/drivers/net/e1000/e1000_main.c 2006-06-06 21:39:11.000000000 +0900
> +++ linux-2.6.17-rc6/drivers/net/e1000/e1000_main.c 2006-06-06 21:56:41.000000000 +0900
> @@ -86,54 +86,54 @@
> * {PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)}
> */
> static struct pci_device_id e1000_pci_tbl[] = {
> - INTEL_E1000_ETHERNET_DEVICE(0x1000),
> - INTEL_E1000_ETHERNET_DEVICE(0x1001),
> - INTEL_E1000_ETHERNET_DEVICE(0x1004),
> - INTEL_E1000_ETHERNET_DEVICE(0x1008),
> - INTEL_E1000_ETHERNET_DEVICE(0x1009),
> - INTEL_E1000_ETHERNET_DEVICE(0x100C),
> - INTEL_E1000_ETHERNET_DEVICE(0x100D),
> - INTEL_E1000_ETHERNET_DEVICE(0x100E),
> - INTEL_E1000_ETHERNET_DEVICE(0x100F),
> - INTEL_E1000_ETHERNET_DEVICE(0x1010),
> - INTEL_E1000_ETHERNET_DEVICE(0x1011),
> - INTEL_E1000_ETHERNET_DEVICE(0x1012),
> - INTEL_E1000_ETHERNET_DEVICE(0x1013),
> - INTEL_E1000_ETHERNET_DEVICE(0x1014),
> - INTEL_E1000_ETHERNET_DEVICE(0x1015),
> - INTEL_E1000_ETHERNET_DEVICE(0x1016),
> - INTEL_E1000_ETHERNET_DEVICE(0x1017),
> - INTEL_E1000_ETHERNET_DEVICE(0x1018),
> - INTEL_E1000_ETHERNET_DEVICE(0x1019),
> - INTEL_E1000_ETHERNET_DEVICE(0x101A),
> - INTEL_E1000_ETHERNET_DEVICE(0x101D),
> - INTEL_E1000_ETHERNET_DEVICE(0x101E),
> - INTEL_E1000_ETHERNET_DEVICE(0x1026),
> - INTEL_E1000_ETHERNET_DEVICE(0x1027),
> - INTEL_E1000_ETHERNET_DEVICE(0x1028),
> - INTEL_E1000_ETHERNET_DEVICE(0x105E),
> - INTEL_E1000_ETHERNET_DEVICE(0x105F),
> - INTEL_E1000_ETHERNET_DEVICE(0x1060),
> - INTEL_E1000_ETHERNET_DEVICE(0x1075),
> - INTEL_E1000_ETHERNET_DEVICE(0x1076),
> - INTEL_E1000_ETHERNET_DEVICE(0x1077),
> - INTEL_E1000_ETHERNET_DEVICE(0x1078),
> - INTEL_E1000_ETHERNET_DEVICE(0x1079),
> - 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),
> - 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),
> - INTEL_E1000_ETHERNET_DEVICE(0x1099),
> - INTEL_E1000_ETHERNET_DEVICE(0x109A),
> - INTEL_E1000_ETHERNET_DEVICE(0x10B5),
> - INTEL_E1000_ETHERNET_DEVICE(0x10B9),
> + INTEL_E1000_ETHERNET_DEVICE(0x1000, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x1001, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x1004, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x1008, 0),
> + INTEL_E1000_ETHERNET_DEVICE(0x1009, 0),
> + INTEL_E1000_ETHERNET_DEVICE(0x100C, 0),
> + INTEL_E1000_ETHERNET_DEVICE(0x100D, 0),
> + INTEL_E1000_ETHERNET_DEVICE(0x100E, 0),
> + INTEL_E1000_ETHERNET_DEVICE(0x100F, 0),
> + INTEL_E1000_ETHERNET_DEVICE(0x1010, 0),
> + INTEL_E1000_ETHERNET_DEVICE(0x1011, 0),
> + INTEL_E1000_ETHERNET_DEVICE(0x1012, 0),
> + INTEL_E1000_ETHERNET_DEVICE(0x1013, 0),
> + INTEL_E1000_ETHERNET_DEVICE(0x1014, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x1015, 0),
> + INTEL_E1000_ETHERNET_DEVICE(0x1016, 0),
> + INTEL_E1000_ETHERNET_DEVICE(0x1017, 0),
> + INTEL_E1000_ETHERNET_DEVICE(0x1018, 0),
> + INTEL_E1000_ETHERNET_DEVICE(0x1019, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x101A, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x101D, 0),
> + INTEL_E1000_ETHERNET_DEVICE(0x101E, 0),
> + INTEL_E1000_ETHERNET_DEVICE(0x1026, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x1027, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x1028, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x105E, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x105F, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x1060, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x1075, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x1076, 0),
> + INTEL_E1000_ETHERNET_DEVICE(0x1077, 0),
> + INTEL_E1000_ETHERNET_DEVICE(0x1078, 0),
> + INTEL_E1000_ETHERNET_DEVICE(0x1079, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x107A, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x107B, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x107C, 0),
> + INTEL_E1000_ETHERNET_DEVICE(0x107D, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x107E, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x107F, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x108A, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x108B, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x108C, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x1096, 0),
> + INTEL_E1000_ETHERNET_DEVICE(0x1098, 0),
> + INTEL_E1000_ETHERNET_DEVICE(0x1099, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x109A, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x10B5, E1000_NO_IOPORT),
> + INTEL_E1000_ETHERNET_DEVICE(0x10B9, 0),
> /* required last entry */
> {0,}
> };
> @@ -621,7 +621,14 @@
> int i, err, pci_using_dac;
> uint16_t eeprom_data;
> uint16_t eeprom_apme_mask = E1000_EEPROM_APME;
> - if ((err = pci_enable_device(pdev)))
> + int bars;
> +
> + if (ent->driver_data & E1000_NO_IOPORT)
> + bars = pci_select_bars(pdev, IORESOURCE_MEM);
> + else
> + bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
> +
> + if ((err = pci_enable_device_bars(pdev, bars)))
> return err;
>
> if (!(err = pci_set_dma_mask(pdev, DMA_64BIT_MASK))) {
> @@ -634,7 +641,8 @@
> pci_using_dac = 0;
> }
>
> - if ((err = pci_request_regions(pdev, e1000_driver_name)))
> + err = pci_request_selected_regions(pdev, bars, e1000_driver_name);
> + if (err)
> return err;
>
> pci_set_master(pdev);
> @@ -654,6 +662,7 @@
> adapter->pdev = pdev;
> adapter->hw.back = adapter;
> adapter->msg_enable = (1 << debug) - 1;
> + adapter->bars = bars;
>
> mmio_start = pci_resource_start(pdev, BAR_0);
> mmio_len = pci_resource_len(pdev, BAR_0);
> @@ -664,12 +673,15 @@
> goto err_ioremap;
> }
>
> - for (i = BAR_1; i <= BAR_5; i++) {
> - if (pci_resource_len(pdev, i) == 0)
> - continue;
> - if (pci_resource_flags(pdev, i) & IORESOURCE_IO) {
> - adapter->hw.io_base = pci_resource_start(pdev, i);
> - break;
> + if (!(ent->driver_data & E1000_NO_IOPORT)) {
> + for (i = BAR_1; i <= BAR_5; i++) {
> + if (pci_resource_len(pdev, i) == 0)
> + continue;
> + if (pci_resource_flags(pdev, i) & IORESOURCE_IO) {
> + adapter->hw.io_base =
> + pci_resource_start(pdev, i);
> + break;
> + }
> }
> }
>
> @@ -880,7 +892,7 @@
> err_ioremap:
> free_netdev(netdev);
> err_alloc_etherdev:
> - pci_release_regions(pdev);
> + pci_release_selected_regions(pdev, bars);
> return err;
> }
>
> @@ -935,7 +947,7 @@
> #endif
>
> iounmap(adapter->hw.hw_addr);
> - pci_release_regions(pdev);
> + pci_release_selected_regions(pdev, adapter->bars);
>
> free_netdev(netdev);
>
> @@ -4577,7 +4589,7 @@
> if (retval)
> DPRINTK(PROBE, ERR, "Error in setting power state\n");
> e1000_pci_restore_state(adapter);
> - ret_val = pci_enable_device(pdev);
> + ret_val = pci_enable_device_bars(pdev, adapter->bars);
> pci_set_master(pdev);
>
> retval = pci_enable_wake(pdev, PCI_D3hot, 0);
>
> -
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