| Message ID | 20210422123049.28870-1-juergh@canonical.com |
|---|---|
| Headers | show |
| Series | No iwilwifi driver in Linux 5.4.0-1034-raspi (LP: #1925209) | expand |
Acked-by: Tim Gardner <tim.gardner@canonical.com> Enabling modules isn't always risk free. One should note that PCI devices are hot-plugged. If there is an early bug in the module init, or it mis-handles some incoming packet, odd crashes could ensue. I have seen this with staging drivers. rtg On 4/22/21 6:30 AM, Juerg Haefliger wrote: > [Impact] > > The Raspberry Pi CM4 exposes a PCIe bus and the AX200 Wifi plugin card should therefore be supported. > > [Test Plan] > > $ modinfo iwlwifi > modinfo: ERROR: Module iwlwifi not found. > > [Where Problems Could Occur] > > It's a new module which might need firmware. If that blob is not available, users might ee dmesg errors. And obviously if the module is buggy all hell could break loose. > > [Original description] > > Hello, > > I have installed Ubuntu Core 20 edge built on 19.04.2021(https://cdimage.ubuntu.com/ubuntu-core/20/edge/) in Raspberry Pi CM4. > > Operating System: Ubuntu Core 20 > Kernel: Linux 5.4.0-1034-raspi > Architecture: arm64 > > I have inserted a Intel AX200 Wifi Adapter in PCIe slot in Raspberry Pi CM4. The device is recognised > > $pciutils-snap.lspci > 00:00.0 PCI bridge: Broadcom Inc. and subsidiaries Device 2711 (rev 20) > 01:00.0 Network controller: Intel Corporation Wi-Fi 6 AX200 (rev 1a) > > But the iwlwifi driver is not available. > > $lsmod | grep iwl > $ > > iwlwifi is the driver needed for intel wireless chips(https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi). > > Is there a possibility to enable the iwlwifi driver? > > Thanks > Hema > > Juerg Haefliger (1): > UBUNTU: [Config] raspi: Set IWLWIFI=m > > debian.raspi/config/config.common.ubuntu | 10 +++++++++- > 1 file changed, 9 insertions(+), 1 deletion(-) >
On Thu, 22 Apr 2021 07:02:42 -0600 Tim Gardner <tim.gardner@canonical.com> wrote: > Acked-by: Tim Gardner <tim.gardner@canonical.com> > > Enabling modules isn't always risk free. Yes. That's what I tried to elaborate on in the LP bug. Fell free to amend it. > One should note that PCI > devices are hot-plugged. If there is an early bug in the module init, or > it mis-handles some incoming packet, odd crashes could ensue. I have > seen this with staging drivers. PCI hot-plugging is optional and glancing over the few and partial schematics that are available for the CM4 and its IO board I doubt that it's supported. ...Juerg > rtg > > On 4/22/21 6:30 AM, Juerg Haefliger wrote: > > [Impact] > > > > The Raspberry Pi CM4 exposes a PCIe bus and the AX200 Wifi plugin card should therefore be supported. > > > > [Test Plan] > > > > $ modinfo iwlwifi > > modinfo: ERROR: Module iwlwifi not found. > > > > [Where Problems Could Occur] > > > > It's a new module which might need firmware. If that blob is not available, users might ee dmesg errors. And obviously if the module is buggy all hell could break loose. > > > > [Original description] > > > > Hello, > > > > I have installed Ubuntu Core 20 edge built on 19.04.2021(https://cdimage.ubuntu.com/ubuntu-core/20/edge/) in Raspberry Pi CM4. > > > > Operating System: Ubuntu Core 20 > > Kernel: Linux 5.4.0-1034-raspi > > Architecture: arm64 > > > > I have inserted a Intel AX200 Wifi Adapter in PCIe slot in Raspberry Pi CM4. The device is recognised > > > > $pciutils-snap.lspci > > 00:00.0 PCI bridge: Broadcom Inc. and subsidiaries Device 2711 (rev 20) > > 01:00.0 Network controller: Intel Corporation Wi-Fi 6 AX200 (rev 1a) > > > > But the iwlwifi driver is not available. > > > > $lsmod | grep iwl > > $ > > > > iwlwifi is the driver needed for intel wireless chips(https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi). > > > > Is there a possibility to enable the iwlwifi driver? > > > > Thanks > > Hema > > > > Juerg Haefliger (1): > > UBUNTU: [Config] raspi: Set IWLWIFI=m > > > > debian.raspi/config/config.common.ubuntu | 10 +++++++++- > > 1 file changed, 9 insertions(+), 1 deletion(-) > > >
Applied to fgh:raspi/master-next. Thanks. -rtg On 4/22/21 6:30 AM, Juerg Haefliger wrote: > [Impact] > > The Raspberry Pi CM4 exposes a PCIe bus and the AX200 Wifi plugin card should therefore be supported. > > [Test Plan] > > $ modinfo iwlwifi > modinfo: ERROR: Module iwlwifi not found. > > [Where Problems Could Occur] > > It's a new module which might need firmware. If that blob is not available, users might ee dmesg errors. And obviously if the module is buggy all hell could break loose. > > [Original description] > > Hello, > > I have installed Ubuntu Core 20 edge built on 19.04.2021(https://cdimage.ubuntu.com/ubuntu-core/20/edge/) in Raspberry Pi CM4. > > Operating System: Ubuntu Core 20 > Kernel: Linux 5.4.0-1034-raspi > Architecture: arm64 > > I have inserted a Intel AX200 Wifi Adapter in PCIe slot in Raspberry Pi CM4. The device is recognised > > $pciutils-snap.lspci > 00:00.0 PCI bridge: Broadcom Inc. and subsidiaries Device 2711 (rev 20) > 01:00.0 Network controller: Intel Corporation Wi-Fi 6 AX200 (rev 1a) > > But the iwlwifi driver is not available. > > $lsmod | grep iwl > $ > > iwlwifi is the driver needed for intel wireless chips(https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi). > > Is there a possibility to enable the iwlwifi driver? > > Thanks > Hema > > Juerg Haefliger (1): > UBUNTU: [Config] raspi: Set IWLWIFI=m > > debian.raspi/config/config.common.ubuntu | 10 +++++++++- > 1 file changed, 9 insertions(+), 1 deletion(-) >