> -----Original Message-----
> From: Gagandeep Singh [mailto:g.si...@nxp.com]
> Sent: Tuesday, May 12, 2020 11:49 AM
> To: wangyunjian <wangyunj...@huawei.com>; dev@dpdk.org
> Cc: Hemant Agrawal <hemant.agra...@nxp.com>; Lilijun (Jerry)
> <jerry.lili...@huawei.com>; xudingke <xudin...@huawei.com>;
> sta...@dpdk.org
> Subject: RE: [dpdk-dev] [PATCH v2] crypto/caam_jr: fix wrong check of fd
>
>
>
> > -----Original Message-----
> > From: wangyunjian <wangyunj...@huawei.com>
> > Sent: Monday, May 11, 2020 10:07 AM
> > To: dev@dpdk.org
> > Cc: Gagandeep Singh <g.si...@nxp.com>; Hemant Agrawal
> > <hemant.agra...@nxp.com>; jerry.lili...@huawei.com;
> > xudin...@huawei.com; Yunjian Wang <wangyunj...@huawei.com>;
> > sta...@dpdk.org
> > Subject: [dpdk-dev] [PATCH v2] crypto/caam_jr: fix wrong check of fd
> >
> > From: Yunjian Wang <wangyunj...@huawei.com>
> >
> > Zero is a valid fd. It will fail to check the fd if the fd is zero.
> > The "job_ring->uio_fd" is an fd, so define it as "int".
> >
> > Fixes: e7a45f3cc245 ("crypto/caam_jr: add UIO specific operations")
> > Fixes: a5e1018d5e67 ("crypto/caam_jr: add routines to configure HW")
> > Cc: sta...@dpdk.org
> >
> > Signed-off-by: Yunjian Wang <wangyunj...@huawei.com>
> > ---
> > v2:
> > * Change "job_ring->uio_fd" type suggested by Gagandeep Singh
> > ---
> > drivers/crypto/caam_jr/caam_jr.c | 6 ++++--
> > drivers/crypto/caam_jr/caam_jr_hw_specific.h | 2 +-
> > drivers/crypto/caam_jr/caam_jr_pvt.h | 5 +++--
> > drivers/crypto/caam_jr/caam_jr_uio.c | 21 ++++++++++++++------
> > 4 files changed, 23 insertions(+), 11 deletions(-)
> >
> > diff --git a/drivers/crypto/caam_jr/caam_jr.c
> > b/drivers/crypto/caam_jr/caam_jr.c
> > index 5a29dd169..f62d46546 100644
> > --- a/drivers/crypto/caam_jr/caam_jr.c
> > +++ b/drivers/crypto/caam_jr/caam_jr.c
> > @@ -2074,7 +2074,7 @@ static struct rte_security_ops
> > caam_jr_security_ops = { static void close_job_ring(struct
> > sec_job_ring_t *job_ring) {
> > - if (job_ring->irq_fd) {
> > + if (job_ring->irq_fd != -1) {
> > /* Producer index is frozen. If consumer index is not equal
> > * with producer index, then we have descs to flush.
> > */
> > @@ -2187,7 +2187,7 @@ caam_jr_dev_uninit(struct rte_cryptodev *dev)
> > *
> > */
> > static void *
> > -init_job_ring(void *reg_base_addr, uint32_t irq_id)
> > +init_job_ring(void *reg_base_addr, int irq_id)
> > {
> > struct sec_job_ring_t *job_ring = NULL;
> > int i, ret = 0;
> > @@ -2466,6 +2466,8 @@
> > RTE_PMD_REGISTER_CRYPTO_DRIVER(caam_jr_crypto_drv,
> > cryptodev_caam_jr_drv.driver,
> >
> > RTE_INIT(caam_jr_init_log)
> > {
> > + sec_init();
> > +
> Why are you calling a fd initialization function in log registration
> constructor?
> This is not the right place for any initialization other than logs.
> Also, sec_init function will not work here, as you are using "g_uio_jr_num"
> whose value will always be 0 during this function call.
Thanks, my bad. I should use 'MAX_SEC_JOB_RINGS'.
The default values of 'g_job_rings' and 'g_uio_job_ring' are 0.
As a result, the validity cannot be checked. what about following:
void sec_uio_job_rings_init(void)
{
int i;
for (i = 0; i < MAX_SEC_JOB_RINGS; i++)
g_uio_job_ring[i].uio_fd = -1;
}
void sec_job_rings_init(void)
{
int i;
for (i = 0; i < MAX_SEC_JOB_RINGS; i++)
g_job_rings[i].irq_fd = -1;
}
RTE_INIT(caam_jr_init)
{
sec_uio_job_rings_init();
sec_job_rings_init();
}
>
> > caam_jr_logtype = rte_log_register("pmd.crypto.caam");
> > if (caam_jr_logtype >= 0)
> > rte_log_set_level(caam_jr_logtype, RTE_LOG_NOTICE); diff --git
> > a/drivers/crypto/caam_jr/caam_jr_hw_specific.h
> > b/drivers/crypto/caam_jr/caam_jr_hw_specific.h
> > index 5f58a585d..ec4539d1b 100644
> > --- a/drivers/crypto/caam_jr/caam_jr_hw_specific.h
> > +++ b/drivers/crypto/caam_jr/caam_jr_hw_specific.h
> > @@ -360,7 +360,7 @@ struct sec_job_ring_t {
> > * bitwise operations.
> > */
> >
> > - uint32_t irq_fd; /* The file descriptor used for polling from
> > + int irq_fd; /* The file descriptor used for polling from
> > * user space for interrupts notifications
> > */
> > uint32_t jr_mode; /* Model used by SEC Driver to receive
> > diff --git a/drivers/crypto/caam_jr/caam_jr_pvt.h
> > b/drivers/crypto/caam_jr/caam_jr_pvt.h
> > index 98cd4438a..fa9e86ea6 100644
> > --- a/drivers/crypto/caam_jr/caam_jr_pvt.h
> > +++ b/drivers/crypto/caam_jr/caam_jr_pvt.h
> > @@ -216,16 +216,17 @@ calc_chksum(void *buffer, int len) } struct
> > uio_job_ring {
> > uint32_t jr_id;
> > - uint32_t uio_fd;
> > + int uio_fd;
> > void *register_base_addr;
> > int map_size;
> > int uio_minor_number;
> > };
> >
> > int sec_cleanup(void);
> > +void sec_init(void);
> > int sec_configure(void);
> > struct uio_job_ring *config_job_ring(void); -void
> > free_job_ring(uint32_t uio_fd);
> > +void free_job_ring(int uio_fd);
> >
> > /* For Dma memory allocation of specified length and alignment */
> > static inline void * diff --git a/drivers/crypto/caam_jr/caam_jr_uio.c
> > b/drivers/crypto/caam_jr/caam_jr_uio.c
> > index b1bb44ca4..133b32084 100644
> > --- a/drivers/crypto/caam_jr/caam_jr_uio.c
> > +++ b/drivers/crypto/caam_jr/caam_jr_uio.c
> > @@ -145,7 +145,7 @@ file_read_first_line(const char root[], const char
> > subdir[],
> > "%s/%s/%s", root, subdir, filename);
> >
> > fd = open(absolute_file_name, O_RDONLY);
> > - SEC_ASSERT(fd > 0, fd, "Error opening file %s",
> > + SEC_ASSERT(fd >= 0, fd, "Error opening file %s",
> > absolute_file_name);
> >
> > /* read UIO device name from first line in file */ @@ -322,7 +322,7
> > @@ uio_map_registers(int uio_device_fd, int uio_device_id, }
> >
> > void
> > -free_job_ring(uint32_t uio_fd)
> > +free_job_ring(int uio_fd)
> > {
> > struct uio_job_ring *job_ring = NULL;
> > int i;
>
> Please update the check "if (!uio_fd)".
OK, I will fix it.
>
> > @@ -347,7 +347,7 @@ free_job_ring(uint32_t uio_fd)
> > job_ring->jr_id, job_ring->uio_fd);
> > close(job_ring->uio_fd);
> > g_uio_jr_num--;
> > - job_ring->uio_fd = 0;
> > + job_ring->uio_fd = -1;
> > if (job_ring->register_base_addr == NULL)
> > return;
> >
> > @@ -370,7 +370,7 @@ uio_job_ring *config_job_ring(void)
> > int i;
> >
> > for (i = 0; i < MAX_SEC_JOB_RINGS; i++) {
> > - if (g_uio_job_ring[i].uio_fd == 0) {
> > + if (g_uio_job_ring[i].uio_fd == -1) {
> > job_ring = &g_uio_job_ring[i];
> > g_uio_jr_num++;
> > break;
> > @@ -389,7 +389,7 @@ uio_job_ring *config_job_ring(void)
> >
> > /* Open device file */
> > job_ring->uio_fd = open(uio_device_file_name, O_RDWR);
> > - SEC_ASSERT(job_ring->uio_fd > 0, NULL,
> > + SEC_ASSERT(job_ring->uio_fd >= 0, NULL,
> > "Failed to open UIO device file for job ring %d",
> > job_ring->jr_id);
> >
> > @@ -488,12 +488,21 @@ sec_cleanup(void)
> > /* I need to close the fd after shutdown UIO commands need to be
> > * sent using the fd
> > */
> > - if (job_ring->uio_fd != 0) {
> > + if (job_ring->uio_fd != -1) {
> > CAAM_JR_INFO(
> > "Closed device file for job ring %d , fd = %d",
> > job_ring->jr_id, job_ring->uio_fd);
> > close(job_ring->uio_fd);
> > + job_ring->uio_fd = -1;
> > }
> > }
> > return 0;
> > }
> > +
> > +void sec_init(void)
> > +{
> > + int i;
> > +
> > + for (i = 0; i < g_uio_jr_num; i++)
> > + g_uio_job_ring[i].uio_fd = -1;
> > +}
> > --
> > 2.19.1
> >
>
> There are still some functions(sec_uio_send_command, caam_jr_enable_irqs,
> caam_jr_disable_irqs) in caam_jr_uio.c, which are accepting uio_fd parameter
> as uint32_t, please update them also.
>
I will update them in next version.
