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From:   Giovanni Cabiddu <giovanni.cabiddu@intel.com>
To:     herbert@gondor.apana.org.au
Cc:     linux-crypto@vger.kernel.org, qat-linux@intel.com,
        Giovanni Cabiddu <giovanni.cabiddu@intel.com>,
        Fiona Trahe <fiona.trahe@intel.com>
Subject: [PATCH 2/3] crypto: qat - add hook to initialize vector routing table
Date:   Fri, 13 Nov 2020 16:46:42 +0000
Message-Id: <20201113164643.103383-3-giovanni.cabiddu@intel.com>
In-Reply-To: <20201113164643.103383-1-giovanni.cabiddu@intel.com>
References: <20201113164643.103383-1-giovanni.cabiddu@intel.com>
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Add an hook to initialize the vector routing table with the default
values before MSIx is enabled.
The new function set_msix_rttable() is called only if present in the
struct adf_hw_device_data of the device. This is to allow for QAT
devices that do not support that functionality.

Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Fiona Trahe <fiona.trahe@intel.com>
---
 drivers/crypto/qat/qat_common/adf_accel_devices.h | 1 +
 drivers/crypto/qat/qat_common/adf_isr.c           | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/drivers/crypto/qat/qat_common/adf_accel_devices.h b/drivers/crypto/qat/qat_common/adf_accel_devices.h
index 1484f10dbfdf..26164d71f1d6 100644
--- a/drivers/crypto/qat/qat_common/adf_accel_devices.h
+++ b/drivers/crypto/qat/qat_common/adf_accel_devices.h
@@ -175,6 +175,7 @@ struct adf_hw_device_data {
 	void (*enable_ints)(struct adf_accel_dev *accel_dev);
 	int (*enable_vf2pf_comms)(struct adf_accel_dev *accel_dev);
 	void (*reset_device)(struct adf_accel_dev *accel_dev);
+	void (*set_msix_rttable)(struct adf_accel_dev *accel_dev);
 	char *(*uof_get_name)(u32 obj_num);
 	u32 (*uof_get_num_objs)(void);
 	u32 (*uof_get_ae_mask)(u32 obj_num);
diff --git a/drivers/crypto/qat/qat_common/adf_isr.c b/drivers/crypto/qat/qat_common/adf_isr.c
index 5444f0ea0a1d..c45853463530 100644
--- a/drivers/crypto/qat/qat_common/adf_isr.c
+++ b/drivers/crypto/qat/qat_common/adf_isr.c
@@ -21,6 +21,9 @@ static int adf_enable_msix(struct adf_accel_dev *accel_dev)
 	struct adf_hw_device_data *hw_data = accel_dev->hw_device;
 	u32 msix_num_entries = 1;
 
+	if (hw_data->set_msix_rttable)
+		hw_data->set_msix_rttable(accel_dev);
+
 	/* If SR-IOV is disabled, add entries for each bank */
 	if (!accel_dev->pf.vf_info) {
 		int i;
-- 
2.28.0