Date: Thu, 13 Oct 2022 08:41:19 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 265786] broadcom storage controller: bus_dmamap_load_ccb() is failing with EINPROGRESS for 1MB IOs Message-ID: <bug-265786-227-e6RnBKPOiL@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-265786-227@https.bugs.freebsd.org/bugzilla/> References: <bug-265786-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D265786 --- Comment #2 from Chandrakanth Patil <chandrakanth.patil@broadcom.com> --- (In reply to Warner Losh from comment #1) Hi warner, Below is the Bug ID link where you mentioned that increasing the maxphys wi= ll resolve the issue: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D2401= 45 Couple of queries I have on your response: 1. when bus_dmamap_load_ccb() returns "EINPROGRESS" does it=20 mean DMA memory allocation is failing due to the unavailability of DMA memory=20 and what course of action the driver should take after this. do we need = to=20 return those IOs with specific error codes? so that those IOs could be r= e-=20 tried. 2. Does it mean FreeBSD doesn't support 1MB IOs? in that do we need to redu= ce the=20 max transfer size to < 1MB? if yes, then what could be the correct max IO size=20=20=20=20=20 NOTE: hardware supports a max transfer size of 1MB --=20 You are receiving this mail because: You are the assignee for the bug.=
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