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authorHoria Geantă <horia.geanta@nxp.com>2019-07-31 16:08:02 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2019-08-09 08:11:44 +0300
commit51fab3d73054ca5b06b26e20edac0486b052c6f4 (patch)
tree04ce8694cb2bf55f1042a82170e23cf89b6c6c16 /drivers/crypto/caam
parentbc67d04e75260942fb534fb91673103dcad7ca96 (diff)
downloadlinux-51fab3d73054ca5b06b26e20edac0486b052c6f4.tar.xz
crypto: caam/qi - fix error handling in ERN handler
ERN handler calls the caam/qi frontend "done" callback with a status of -EIO. This is incorrect, since the callback expects a status value meaningful for the crypto engine - hence the cryptic messages like the one below: platform caam_qi: 15: unknown error source Fix this by providing the callback with: -the status returned by the crypto engine (fd[status]) in case it contains an error, OR -a QI "No error" code otherwise; this will trigger the message: platform caam_qi: 50000000: Queue Manager Interface: No error which is fine, since QMan driver provides details about the cause of failure Cc: <stable@vger.kernel.org> # v5.1+ Fixes: 67c2315def06 ("crypto: caam - add Queue Interface (QI) backend support") Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Reviewed-by: Iuliana Prodan <iuliana.prodan@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/caam')
-rw-r--r--drivers/crypto/caam/error.c1
-rw-r--r--drivers/crypto/caam/qi.c5
-rw-r--r--drivers/crypto/caam/regs.h1
3 files changed, 6 insertions, 1 deletions
diff --git a/drivers/crypto/caam/error.c b/drivers/crypto/caam/error.c
index 4f0d45865aa2..95da6ae43482 100644
--- a/drivers/crypto/caam/error.c
+++ b/drivers/crypto/caam/error.c
@@ -118,6 +118,7 @@ static const struct {
u8 value;
const char *error_text;
} qi_error_list[] = {
+ { 0x00, "No error" },
{ 0x1F, "Job terminated by FQ or ICID flush" },
{ 0x20, "FD format error"},
{ 0x21, "FD command format error"},
diff --git a/drivers/crypto/caam/qi.c b/drivers/crypto/caam/qi.c
index 0fe618e3804a..19a378bdf331 100644
--- a/drivers/crypto/caam/qi.c
+++ b/drivers/crypto/caam/qi.c
@@ -163,7 +163,10 @@ static void caam_fq_ern_cb(struct qman_portal *qm, struct qman_fq *fq,
dma_unmap_single(drv_req->drv_ctx->qidev, qm_fd_addr(fd),
sizeof(drv_req->fd_sgt), DMA_BIDIRECTIONAL);
- drv_req->cbk(drv_req, -EIO);
+ if (fd->status)
+ drv_req->cbk(drv_req, be32_to_cpu(fd->status));
+ else
+ drv_req->cbk(drv_req, JRSTA_SSRC_QI);
}
static struct qman_fq *create_caam_req_fq(struct device *qidev,
diff --git a/drivers/crypto/caam/regs.h b/drivers/crypto/caam/regs.h
index 8591914d5c51..7c7ea8af6a48 100644
--- a/drivers/crypto/caam/regs.h
+++ b/drivers/crypto/caam/regs.h
@@ -641,6 +641,7 @@ struct caam_job_ring {
#define JRSTA_SSRC_CCB_ERROR 0x20000000
#define JRSTA_SSRC_JUMP_HALT_USER 0x30000000
#define JRSTA_SSRC_DECO 0x40000000
+#define JRSTA_SSRC_QI 0x50000000
#define JRSTA_SSRC_JRERROR 0x60000000
#define JRSTA_SSRC_JUMP_HALT_CC 0x70000000