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From: Damian Muszynski <damian.muszynski@intel.com>
To: herbert@gondor.apana.org.au
Cc: linux-crypto@vger.kernel.org,
	qat-linux@intel.com,
	Damian Muszynski <damian.muszynski@intel.com>,
	Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Subject: [PATCH 1/3] crypto: qat - fix ring to service map for dcc in 4xxx
Date: Fri, 16 Feb 2024 18:21:54 +0100
Message-ID: <20240216172545.177303-2-damian.muszynski@intel.com>
In-Reply-To: <20240216172545.177303-1-damian.muszynski@intel.com>
References: <20240216172545.177303-1-damian.muszynski@intel.com>
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Organization: Intel Technology Poland sp. z o.o. - ul. Slowackiego 173, 80-298 Gdansk - KRS 101882 - NIP 957-07-52-316
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If a device is configured for data compression chaining (dcc), half of the
engines are loaded with the symmetric crypto image and the rest are loaded
with the compression image.
However, in such configuration all rings can handle compression requests.

Fix the ring to service mapping so that when a device is configured for
dcc, the ring to service mapping reports that all rings in a bank can
be used for compression.

Fixes: a238487f7965 ("crypto: qat - fix ring to service map for QAT GEN4")
Signed-off-by: Damian Muszynski <damian.muszynski@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
---
 drivers/crypto/intel/qat/qat_4xxx/adf_4xxx_hw_data.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/crypto/intel/qat/qat_4xxx/adf_4xxx_hw_data.c b/drivers/crypto/intel/qat/qat_4xxx/adf_4xxx_hw_data.c
index 94a0ebb03d8c..e171cddf6f02 100644
--- a/drivers/crypto/intel/qat/qat_4xxx/adf_4xxx_hw_data.c
+++ b/drivers/crypto/intel/qat/qat_4xxx/adf_4xxx_hw_data.c
@@ -331,6 +331,13 @@ static u16 get_ring_to_svc_map(struct adf_accel_dev *accel_dev)
 	if (!fw_config)
 		return 0;
 
+	/* If dcc, all rings handle compression requests */
+	if (adf_get_service_enabled(accel_dev) == SVC_DCC) {
+		for (i = 0; i < RP_GROUP_COUNT; i++)
+			rps[i] = COMP;
+		goto set_mask;
+	}
+
 	for (i = 0; i < RP_GROUP_COUNT; i++) {
 		switch (fw_config[i].ae_mask) {
 		case ADF_AE_GROUP_0:
@@ -359,6 +366,7 @@ static u16 get_ring_to_svc_map(struct adf_accel_dev *accel_dev)
 		}
 	}
 
+set_mask:
 	ring_to_svc_map = rps[RP_GROUP_0] << ADF_CFG_SERV_RING_PAIR_0_SHIFT |
 			  rps[RP_GROUP_1] << ADF_CFG_SERV_RING_PAIR_1_SHIFT |
 			  rps[RP_GROUP_0] << ADF_CFG_SERV_RING_PAIR_2_SHIFT |
-- 
2.43.0