netdev - Re: [PATCH 16/25] mlx4

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Message-ID: <aday6mmyshm.fsf@cisco.com>
Date:	Wed, 04 Nov 2009 11:55:49 -0800
From:	Roland Dreier <rdreier@...co.com>
To:	Yevgeny Petrilin <yevgenyp@...lanox.co.il>
Cc:	linux-rdma@...r.kernel.org, netdev@...r.kernel.org,
	liranl@...lanox.co.il, tziporet@...lanox.co.il
Subject: Re: [PATCH 16/25] mlx4_core: boot sriov


 > +	/* Detect if this device is a virtual function */
 > +	switch (id->device) {
 > +	case 0x6341:
 > +	case 0x634b:
 > +	case 0x6733:
 > +	case 0x673d:
 > +	case 0x6369:
 > +	case 0x6751:
 > +	case 0x6765:

This isn't be maintainable or sane.  How about using driver_data in the
PCI device table?

 > +#ifdef CONFIG_PCI_IOV
 > +		if (sr_iov) {

Can we avoid a lot of these ifdefs by just doing

#else
#define sr_iov	0
#endif /* CONFIG_PCI_IOV */

at the beginning and letting the IOV code be optimized away?

 - R.
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