Re: [PATCH v1] IB: Move PCI dependency from root KConfig to HW's KConfigs

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On Mon, Sep 04, 2017 at 05:48:29PM +0200, Jack Wang wrote:
> 2017-09-04 17:28 GMT+02:00 Yuval Shaia <yuval.shaia@xxxxxxxxxx>:
> > No reason to have dependency on PCI for the entire infiniband stack so
> > move it to KConfig of only the drivers that actually using PCI.
> >
> > Signed-off-by: Yuval Shaia <yuval.shaia@xxxxxxxxxx>
> > ---
> > v0 -> v1:
> >         * As suggested by Thomas Bogendoerfer:
> >                 * Remove unneeded header inclusion from ipoib
> >                 * Remove PCI dependency from ipoib's Kconfig
> > ---
> >  drivers/infiniband/Kconfig                | 1 -
> >  drivers/infiniband/hw/cxgb3/Kconfig       | 1 +
> >  drivers/infiniband/hw/cxgb4/Kconfig       | 1 +
> >  drivers/infiniband/hw/hfi1/Kconfig        | 1 +
> >  drivers/infiniband/hw/i40iw/Kconfig       | 1 +
> >  drivers/infiniband/hw/qedr/Kconfig        | 1 +
> >  drivers/infiniband/hw/qib/Kconfig         | 1 +
> >  drivers/infiniband/sw/rdmavt/Kconfig      | 1 +
> >  drivers/infiniband/ulp/ipoib/ipoib_main.c | 1 -
> >  9 files changed, 7 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig
> > index 234fe01904e7..568088a9298c 100644
> > --- a/drivers/infiniband/Kconfig
> > +++ b/drivers/infiniband/Kconfig
> > @@ -1,6 +1,5 @@
> >  menuconfig INFINIBAND
> >         tristate "InfiniBand support"
> > -       depends on PCI || BROKEN
> >         depends on HAS_IOMEM
> >         depends on NET
> >         depends on INET
> > diff --git a/drivers/infiniband/hw/cxgb3/Kconfig b/drivers/infiniband/hw/cxgb3/Kconfig
> > index 2b6352b85485..bd32926afa77 100644
> > --- a/drivers/infiniband/hw/cxgb3/Kconfig
> > +++ b/drivers/infiniband/hw/cxgb3/Kconfig
> > @@ -1,5 +1,6 @@
> >  config INFINIBAND_CXGB3
> >         tristate "Chelsio RDMA Driver"
> > +       depends on PCI || BROKEN
> >         depends on CHELSIO_T3 && INET
> >         select GENERIC_ALLOCATOR
> >         ---help---
> > diff --git a/drivers/infiniband/hw/cxgb4/Kconfig b/drivers/infiniband/hw/cxgb4/Kconfig
> > index afe8b28e0878..7910fdd88619 100644
> > --- a/drivers/infiniband/hw/cxgb4/Kconfig
> > +++ b/drivers/infiniband/hw/cxgb4/Kconfig
> > @@ -1,6 +1,7 @@
> >  config INFINIBAND_CXGB4
> >         tristate "Chelsio T4/T5 RDMA Driver"
> >         depends on CHELSIO_T4 && INET && (IPV6 || IPV6=n)
> > +       depends on PCI || BROKEN
> >         select CHELSIO_LIB
> >         select GENERIC_ALLOCATOR
> >         ---help---
> > diff --git a/drivers/infiniband/hw/hfi1/Kconfig b/drivers/infiniband/hw/hfi1/Kconfig
> > index f6ea0881765a..5072d083f53b 100644
> > --- a/drivers/infiniband/hw/hfi1/Kconfig
> > +++ b/drivers/infiniband/hw/hfi1/Kconfig
> > @@ -1,6 +1,7 @@
> >  config INFINIBAND_HFI1
> >         tristate "Intel OPA Gen1 support"
> >         depends on X86_64 && INFINIBAND_RDMAVT && I2C
> > +       depends on PCI || BROKEN
> >         select MMU_NOTIFIER
> >         select CRC32
> >         select I2C_ALGOBIT
> > diff --git a/drivers/infiniband/hw/i40iw/Kconfig b/drivers/infiniband/hw/i40iw/Kconfig
> > index 6e7d27a14061..9cfef1370445 100644
> > --- a/drivers/infiniband/hw/i40iw/Kconfig
> > +++ b/drivers/infiniband/hw/i40iw/Kconfig
> > @@ -1,6 +1,7 @@
> >  config INFINIBAND_I40IW
> >         tristate "Intel(R) Ethernet X722 iWARP Driver"
> >         depends on INET && I40E
> > +       depends on PCI || BROKEN
> >         select GENERIC_ALLOCATOR
> >         ---help---
> >         Intel(R) Ethernet X722 iWARP Driver
> > diff --git a/drivers/infiniband/hw/qedr/Kconfig b/drivers/infiniband/hw/qedr/Kconfig
> > index 6c9f3923e838..8db2966f52c2 100644
> > --- a/drivers/infiniband/hw/qedr/Kconfig
> > +++ b/drivers/infiniband/hw/qedr/Kconfig
> > @@ -1,6 +1,7 @@
> >  config INFINIBAND_QEDR
> >         tristate "QLogic RoCE driver"
> >         depends on 64BIT && QEDE
> > +       depends on PCI || BROKEN
> >         select QED_LL2
> >         select QED_RDMA
> >         ---help---
> > diff --git a/drivers/infiniband/hw/qib/Kconfig b/drivers/infiniband/hw/qib/Kconfig
> > index e0fdb9201423..522a6fcaa9d8 100644
> > --- a/drivers/infiniband/hw/qib/Kconfig
> > +++ b/drivers/infiniband/hw/qib/Kconfig
> > @@ -1,6 +1,7 @@
> >  config INFINIBAND_QIB
> >         tristate "Intel PCIe HCA support"
> >         depends on 64BIT && INFINIBAND_RDMAVT
> > +       depends on PCI || BROKEN
> >         ---help---
> >         This is a low-level driver for Intel PCIe QLE InfiniBand host
> >         channel adapters.  This driver does not support the Intel
> > diff --git a/drivers/infiniband/sw/rdmavt/Kconfig b/drivers/infiniband/sw/rdmavt/Kconfig
> > index fdd001ce13d8..605bfb1da9df 100644
> > --- a/drivers/infiniband/sw/rdmavt/Kconfig
> > +++ b/drivers/infiniband/sw/rdmavt/Kconfig
> > @@ -1,6 +1,7 @@
> >  config INFINIBAND_RDMAVT
> >         tristate "RDMA verbs transport library"
> >         depends on 64BIT
> > +       depends on PCI || BROKEN
> >         select DMA_VIRT_OPS
> >         ---help---
> >         This is a common software verbs provider for RDMA networks.
> 
> does the RDMAVT really depends on PCI, to me looks not, we can also
> remove  the included in drivers/infiniband/sw/rdmavt/vt.h?

I thought that this is used by the set of macros just below (rvt_pr_*
family).
Anyway, tried that and got compilation errors.
(See function get_pci_dev declaration in include/rdma/rdma_vt.h)

> 
> Other than this, I think the change make sense to me!
> 
> Cheers,
> Jack
> 
> > diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
> > index 6c77df34869d..3fc3b7b20297 100644
> > --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
> > +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
> > @@ -51,7 +51,6 @@
> >  #include <net/addrconf.h>
> >  #include <linux/inetdevice.h>
> >  #include <rdma/ib_cache.h>
> > -#include <linux/pci.h>
> >
> >  #define DRV_VERSION "1.0.0"
> >
> > --
> > 2.13.5
> >
> > --
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