From: Oded Gabbay <ogabbay@kernel.org>
To: linux-kernel@vger.kernel.org
Cc: SW_Drivers@habana.ai
Subject: [PATCH] habanalabs/gaudi: increase MAX CS to 16K
Date: Wed, 4 Nov 2020 16:08:59 +0200 [thread overview]
Message-ID: <20201104140908.10178-3-ogabbay@kernel.org> (raw)
In-Reply-To: <20201104140908.10178-1-ogabbay@kernel.org>
We need to have the MAX CS be much larger than the size of the
different queues. In GAUDI we have around 8 groups of queues, and each
group has 1K queue size. To prevent head-of-the-line blocking, we need
to make sure there is sufficient number of available CS allocations
even if one or more of those queues are full.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
---
drivers/misc/habanalabs/gaudi/gaudiP.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/misc/habanalabs/gaudi/gaudiP.h b/drivers/misc/habanalabs/gaudi/gaudiP.h
index 1dcf7c41e698..c3c24e8da4e2 100644
--- a/drivers/misc/habanalabs/gaudi/gaudiP.h
+++ b/drivers/misc/habanalabs/gaudi/gaudiP.h
@@ -60,7 +60,7 @@
#define GAUDI_DEFAULT_CARD_NAME "HL2000"
-#define GAUDI_MAX_PENDING_CS 1024
+#define GAUDI_MAX_PENDING_CS SZ_16K
#if !IS_MAX_PENDING_CS_VALID(GAUDI_MAX_PENDING_CS)
#error "GAUDI_MAX_PENDING_CS must be power of 2 and greater than 1"
--
2.17.1
next prev parent reply other threads:[~2020-11-04 14:10 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-04 14:08 [PATCH] habanalabs: add 'needs reset' state in driver Oded Gabbay
2020-11-04 14:08 ` [PATCH] habanalabs: fix hard reset print and comment Oded Gabbay
2020-11-04 14:08 ` Oded Gabbay [this message]
2020-11-04 14:09 ` [PATCH] habanalabs/gaudi: remove pcie_en strap toggle Oded Gabbay
2020-11-04 14:09 ` [PATCH] habanalabs: Move repeatedly included headers to habanalabs.h Oded Gabbay
2020-11-04 14:09 ` [PATCH] habanalabs: release signal if collective wait was dropped Oded Gabbay
2020-11-04 14:09 ` [PATCH] habanalabs: remove duplicate print Oded Gabbay
2020-11-04 14:09 ` [PATCH] habanalabs: reset device upon fw read failure Oded Gabbay
2020-11-04 14:09 ` [PATCH] habanalabs: restore vm_pgoff after mmap Oded Gabbay
2020-11-04 14:09 ` [PATCH] habanalabs: Separate CS job completion from its deallocation Oded Gabbay
2020-11-04 14:09 ` [PATCH] habanalabs: Skip updating CI of internal queues if not in use Oded Gabbay
2020-11-04 14:09 ` [PATCH] habanalabs: Small refactoring of cs_do_release() Oded Gabbay
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