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Subject[PATCH] crypto: caam/qi2 - add support for dpseci_reset()
Date
From: Andrei Botila <andrei.botila@nxp.com>

Add support for dpseci_reset() command for DPSECI objects.
For DPSECI DPAA2 objects with version lower than v5.4 reset command
was broken in MC f/w.

Signed-off-by: Andrei Botila <andrei.botila@nxp.com>
---
drivers/crypto/caam/caamalg_qi2.c | 11 +++++++++++
drivers/crypto/caam/dpseci.c | 18 ++++++++++++++++++
drivers/crypto/caam/dpseci.h | 2 ++
drivers/crypto/caam/dpseci_cmd.h | 1 +
4 files changed, 32 insertions(+)

diff --git a/drivers/crypto/caam/caamalg_qi2.c b/drivers/crypto/caam/caamalg_qi2.c
index 28669cbecf77..ed52f0f4fb2c 100644
--- a/drivers/crypto/caam/caamalg_qi2.c
+++ b/drivers/crypto/caam/caamalg_qi2.c
@@ -4698,6 +4698,9 @@ static void dpaa2_dpseci_free(struct dpaa2_caam_priv *priv)
struct device *dev = priv->dev;
struct fsl_mc_device *ls_dev = to_fsl_mc_device(dev);

+ if (DPSECI_VER(priv->major_ver, priv->minor_ver) > DPSECI_VER(5, 3))
+ dpseci_reset(priv->mc_io, 0, ls_dev->mc_handle);
+
dpaa2_dpseci_congestion_free(priv);
dpseci_close(priv->mc_io, 0, ls_dev->mc_handle);
}
@@ -4894,6 +4897,14 @@ static int __cold dpaa2_dpseci_setup(struct fsl_mc_device *ls_dev)

dev_info(dev, "dpseci v%d.%d\n", priv->major_ver, priv->minor_ver);

+ if (DPSECI_VER(priv->major_ver, priv->minor_ver) > DPSECI_VER(5, 3)) {
+ err = dpseci_reset(priv->mc_io, 0, ls_dev->mc_handle);
+ if (err) {
+ dev_err(dev, "dpseci_reset() failed\n");
+ goto err_get_vers;
+ }
+ }
+
err = dpseci_get_attributes(priv->mc_io, 0, ls_dev->mc_handle,
&priv->dpseci_attr);
if (err) {
diff --git a/drivers/crypto/caam/dpseci.c b/drivers/crypto/caam/dpseci.c
index 8a68531ded0b..039df6c5790c 100644
--- a/drivers/crypto/caam/dpseci.c
+++ b/drivers/crypto/caam/dpseci.c
@@ -103,6 +103,24 @@ int dpseci_disable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
return mc_send_command(mc_io, &cmd);
}

+/**
+ * dpseci_reset() - Reset the DPSECI, returns the object to initial state
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPSECI object
+ *
+ * Return: '0' on success, error code otherwise
+ */
+int dpseci_reset(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ cmd.header = mc_encode_cmd_header(DPSECI_CMDID_RESET,
+ cmd_flags,
+ token);
+ return mc_send_command(mc_io, &cmd);
+}
+
/**
* dpseci_is_enabled() - Check if the DPSECI is enabled.
* @mc_io: Pointer to MC portal's I/O object
diff --git a/drivers/crypto/caam/dpseci.h b/drivers/crypto/caam/dpseci.h
index 4550e134d166..6dcd9be8144b 100644
--- a/drivers/crypto/caam/dpseci.h
+++ b/drivers/crypto/caam/dpseci.h
@@ -59,6 +59,8 @@ int dpseci_enable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token);

int dpseci_disable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token);

+int dpseci_reset(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token);
+
int dpseci_is_enabled(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
int *en);

diff --git a/drivers/crypto/caam/dpseci_cmd.h b/drivers/crypto/caam/dpseci_cmd.h
index 6ab77ead6e3d..71a007c85adb 100644
--- a/drivers/crypto/caam/dpseci_cmd.h
+++ b/drivers/crypto/caam/dpseci_cmd.h
@@ -33,6 +33,7 @@
#define DPSECI_CMDID_ENABLE DPSECI_CMD_V1(0x002)
#define DPSECI_CMDID_DISABLE DPSECI_CMD_V1(0x003)
#define DPSECI_CMDID_GET_ATTR DPSECI_CMD_V1(0x004)
+#define DPSECI_CMDID_RESET DPSECI_CMD_V1(0x005)
#define DPSECI_CMDID_IS_ENABLED DPSECI_CMD_V1(0x006)

#define DPSECI_CMDID_SET_RX_QUEUE DPSECI_CMD_V1(0x194)
--
2.17.1
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