search for: sg_nent

...t mode=38. > > Usually the next entry of one sg will be @sg@ + 1, but if this sg element > is part of a chained scatterlist, it could jump to the start of a new > scatterlist array. Let's fix it by sg_next() on calculation of src/dst > scatterlist. > > BTW I add a check for sg_nents_for_len() its return value since > sg_nents_for_len() function could fail. > > Cc: Gonglei <arei.gonglei at huawei.com> > Cc: Herbert Xu <herbert at gondor.apana.org.au> > Cc: "Michael S. Tsirkin" <mst at redhat.com> > Cc: Jason Wang <jasowang at re...

...ypto_algs.c @@ -350,13 +350,18 @@ __virtio_crypto_skcipher_do_req(struct v int err; unsigned long flags; struct scatterlist outhdr, iv_sg, status_sg, **sgs; - int i; u64 dst_len; unsigned int num_out = 0, num_in = 0; int sg_total; uint8_t *iv; + struct scatterlist *sg; src_nents = sg_nents_for_len(req->src, req->cryptlen); + if (src_nents < 0) { + pr_err("Invalid number of src SG.\n"); + return src_nents; + } + dst_nents = sg_nents(req->dst); pr_debug("virtio_crypto: Number of sgs (src_nents: %d, dst_nents: %d)\n", @@ -443,12 +448,12 @@ __virt...

...ypto_algs.c @@ -350,13 +350,18 @@ __virtio_crypto_skcipher_do_req(struct v int err; unsigned long flags; struct scatterlist outhdr, iv_sg, status_sg, **sgs; - int i; u64 dst_len; unsigned int num_out = 0, num_in = 0; int sg_total; uint8_t *iv; + struct scatterlist *sg; src_nents = sg_nents_for_len(req->src, req->cryptlen); + if (src_nents < 0) { + pr_err("Invalid number of src SG.\n"); + return src_nents; + } + dst_nents = sg_nents(req->dst); pr_debug("virtio_crypto: Number of sgs (src_nents: %d, dst_nents: %d)\n", @@ -443,12 +448,12 @@ __virt...

...tio_crypto_ablkcipher_do_req(struct virtio_crypto_sym_request *vc_sym_req, int err; unsigned long flags; struct scatterlist outhdr, iv_sg, status_sg, **sgs; - int i; u64 dst_len; unsigned int num_out = 0, num_in = 0; int sg_total; uint8_t *iv; + struct scatterlist *sg; src_nents = sg_nents_for_len(req->src, req->nbytes); + if (src_nents < 0) { + pr_err("Invalid number of src SG.\n"); + return src_nents; + } + dst_nents = sg_nents(req->dst); pr_debug("virtio_crypto: Number of sgs (src_nents: %d, dst_nents: %d)\n", @@ -445,12 +450,12 @@ __virtio...

...tio_crypto_ablkcipher_do_req(struct virtio_crypto_sym_request *vc_sym_req, int err; unsigned long flags; struct scatterlist outhdr, iv_sg, status_sg, **sgs; - int i; u64 dst_len; unsigned int num_out = 0, num_in = 0; int sg_total; uint8_t *iv; + struct scatterlist *sg; src_nents = sg_nents_for_len(req->src, req->nbytes); + if (src_nents < 0) { + pr_err("Invalid number of src SG.\n"); + return src_nents; + } + dst_nents = sg_nents(req->dst); pr_debug("virtio_crypto: Number of sgs (src_nents: %d, dst_nents: %d)\n", @@ -441,12 +446,12 @@ __virtio...

...tio_crypto_ablkcipher_do_req(struct virtio_crypto_sym_request *vc_sym_req, int err; unsigned long flags; struct scatterlist outhdr, iv_sg, status_sg, **sgs; - int i; u64 dst_len; unsigned int num_out = 0, num_in = 0; int sg_total; uint8_t *iv; + struct scatterlist *sg; src_nents = sg_nents_for_len(req->src, req->nbytes); + if (src_nents < 0) { + pr_err("Invalid number of src SG.\n"); + return src_nents; + } + dst_nents = sg_nents(req->dst); pr_debug("virtio_crypto: Number of sgs (src_nents: %d, dst_nents: %d)\n", @@ -459,12 +464,12 @@ __virtio...

...ypto_algs.c @@ -350,13 +350,18 @@ __virtio_crypto_skcipher_do_req(struct v int err; unsigned long flags; struct scatterlist outhdr, iv_sg, status_sg, **sgs; - int i; u64 dst_len; unsigned int num_out = 0, num_in = 0; int sg_total; uint8_t *iv; + struct scatterlist *sg; src_nents = sg_nents_for_len(req->src, req->cryptlen); + if (src_nents < 0) { + pr_err("Invalid number of src SG.\n"); + return src_nents; + } + dst_nents = sg_nents(req->dst); pr_debug("virtio_crypto: Number of sgs (src_nents: %d, dst_nents: %d)\n", @@ -443,12 +448,12 @@ __virt...

...ypto_algs.c @@ -350,13 +350,18 @@ __virtio_crypto_skcipher_do_req(struct v int err; unsigned long flags; struct scatterlist outhdr, iv_sg, status_sg, **sgs; - int i; u64 dst_len; unsigned int num_out = 0, num_in = 0; int sg_total; uint8_t *iv; + struct scatterlist *sg; src_nents = sg_nents_for_len(req->src, req->cryptlen); + if (src_nents < 0) { + pr_err("Invalid number of src SG.\n"); + return src_nents; + } + dst_nents = sg_nents(req->dst); pr_debug("virtio_crypto: Number of sgs (src_nents: %d, dst_nents: %d)\n", @@ -443,12 +448,12 @@ __virt...

...rypto_skcipher_ivsize(tfm); struct virtio_crypto *vcrypto = ctx->vcrypto; struct virtio_crypto_op_data_req *req_data; int src_nents, dst_nents; @@ -359,7 +360,7 @@ __virtio_crypto_ablkcipher_do_req(struct virtio_crypto_sym_request *vc_sym_req, int sg_total; uint8_t *iv; - src_nents = sg_nents_for_len(req->src, req->nbytes); + src_nents = sg_nents_for_len(req->src, req->cryptlen); dst_nents = sg_nents(req->dst); pr_debug("virtio_crypto: Number of sgs (src_nents: %d, dst_nents: %d)\n", @@ -396,7 +397,7 @@ __virtio_crypto_ablkcipher_do_req(struct virtio_cryp...

...rypto_skcipher_ivsize(tfm); struct virtio_crypto *vcrypto = ctx->vcrypto; struct virtio_crypto_op_data_req *req_data; int src_nents, dst_nents; @@ -359,7 +360,7 @@ __virtio_crypto_ablkcipher_do_req(struct virtio_crypto_sym_request *vc_sym_req, int sg_total; uint8_t *iv; - src_nents = sg_nents_for_len(req->src, req->nbytes); + src_nents = sg_nents_for_len(req->src, req->cryptlen); dst_nents = sg_nents(req->dst); pr_debug("virtio_crypto: Number of sgs (src_nents: %d, dst_nents: %d)\n", @@ -396,7 +397,7 @@ __virtio_crypto_ablkcipher_do_req(struct virtio_cryp...

...("%s:\n", __func__); > +} > + > +enum rdma_link_layer virtio_rdma_port_link_layer(struct ib_device *ibdev, > + u8 port) > +{ > + return IB_LINK_LAYER_ETHERNET; > +} > + > +int virtio_rdma_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, > + int sg_nents, unsigned int *sg_offset) > +{ > + printk("%s:\n", __func__); > + > + return 0; > +} > + > +int virtio_rdma_mmap(struct ib_ucontext *ibcontext, struct vm_area_struct *vma) > +{ > + printk("%s:\n", __func__); > + > + return 0; > +} > + >...

...r(struct ib_device *device, char *str) +{ + printk("%s:\n", __func__); +} + +enum rdma_link_layer virtio_rdma_port_link_layer(struct ib_device *ibdev, + u8 port) +{ + return IB_LINK_LAYER_ETHERNET; +} + +int virtio_rdma_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, + int sg_nents, unsigned int *sg_offset) +{ + printk("%s:\n", __func__); + + return 0; +} + +int virtio_rdma_mmap(struct ib_ucontext *ibcontext, struct vm_area_struct *vma) +{ + printk("%s:\n", __func__); + + return 0; +} + +int virtio_rdma_modify_port(struct ib_device *ibdev, u8 port, int ma...

...tterwalk.h> > +#include <linux/atomic.h> > + > +#include <uapi/linux/virtio_crypto.h> > +#include "virtio_crypto_common.h" > + > +static DEFINE_MUTEX(algs_lock); > +static unsigned int virtio_crypto_active_devs; > + > +static u64 virtio_crypto_alg_sg_nents_length(struct scatterlist *sg) > +{ > + u64 total = 0; > + > + for (total = 0; sg; sg = sg_next(sg)) > + total += sg->length; > + > + return total; > +} > + > +static int virtio_crypto_alg_validate_key(int key_len, int *alg) > +{ > + switch (key_len) { >...

...tterwalk.h> > +#include <linux/atomic.h> > + > +#include <uapi/linux/virtio_crypto.h> > +#include "virtio_crypto_common.h" > + > +static DEFINE_MUTEX(algs_lock); > +static unsigned int virtio_crypto_active_devs; > + > +static u64 virtio_crypto_alg_sg_nents_length(struct scatterlist *sg) > +{ > + u64 total = 0; > + > + for (total = 0; sg; sg = sg_next(sg)) > + total += sg->length; > + > + return total; > +} > + > +static int virtio_crypto_alg_validate_key(int key_len, int *alg) > +{ > + switch (key_len) { >...

...atomic.h> > > + > > +#include <uapi/linux/virtio_crypto.h> > > +#include "virtio_crypto_common.h" > > + > > +static DEFINE_MUTEX(algs_lock); > > +static unsigned int virtio_crypto_active_devs; > > + > > +static u64 virtio_crypto_alg_sg_nents_length(struct scatterlist *sg) > > +{ > > + u64 total = 0; > > + > > + for (total = 0; sg; sg = sg_next(sg)) > > + total += sg->length; > > + > > + return total; > > +} > > + > > +static int virtio_crypto_alg_validate_key(int key_len,...

Data center backends use more and more RDMA or RoCE devices and more and more software runs in virtualized environment. There is a need for a standard to enable RDMA/RoCE on Virtual Machines. Virtio is the optimal solution since is the de-facto para-virtualizaton technology and also because the Virtio specification allows Hardware Vendors to support Virtio protocol natively in order to achieve

Data center backends use more and more RDMA or RoCE devices and more and more software runs in virtualized environment. There is a need for a standard to enable RDMA/RoCE on Virtual Machines. Virtio is the optimal solution since is the de-facto para-virtualizaton technology and also because the Virtio specification allows Hardware Vendors to support Virtio protocol natively in order to achieve

...<linux/err.h> +#include <crypto/scatterwalk.h> +#include <linux/atomic.h> + +#include <uapi/linux/virtio_crypto.h> +#include "virtio_crypto_common.h" + +static DEFINE_MUTEX(algs_lock); +static unsigned int virtio_crypto_active_devs; + +static u64 virtio_crypto_alg_sg_nents_length(struct scatterlist *sg) +{ + u64 total = 0; + + for (total = 0; sg; sg = sg_next(sg)) + total += sg->length; + + return total; +} + +static int virtio_crypto_alg_validate_key(int key_len, int *alg) +{ + switch (key_len) { + case AES_KEYSIZE_128: + case AES_KEYSIZE_192: + case AES_KEYSIZ...

...<linux/err.h> +#include <crypto/scatterwalk.h> +#include <linux/atomic.h> + +#include <uapi/linux/virtio_crypto.h> +#include "virtio_crypto_common.h" + +static DEFINE_MUTEX(algs_lock); +static unsigned int virtio_crypto_active_devs; + +static u64 virtio_crypto_alg_sg_nents_length(struct scatterlist *sg) +{ + u64 total = 0; + + for (total = 0; sg; sg = sg_next(sg)) + total += sg->length; + + return total; +} + +static int +virtio_crypto_alg_validate_key(int key_len, uint32_t *alg) +{ + switch (key_len) { + case AES_KEYSIZE_128: + case AES_KEYSIZE_192: + case AES_...

...<linux/err.h> +#include <crypto/scatterwalk.h> +#include <linux/atomic.h> + +#include <uapi/linux/virtio_crypto.h> +#include "virtio_crypto_common.h" + +static DEFINE_MUTEX(algs_lock); +static unsigned int virtio_crypto_active_devs; + +static u64 virtio_crypto_alg_sg_nents_length(struct scatterlist *sg) +{ + u64 total = 0; + + for (total = 0; sg; sg = sg_next(sg)) + total += sg->length; + + return total; +} + +static int +virtio_crypto_alg_validate_key(int key_len, uint32_t *alg) +{ + switch (key_len) { + case AES_KEYSIZE_128: + case AES_KEYSIZE_192: + case AES_...