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-rw-r--r--drivers/ata/libata-core.c4
-rw-r--r--drivers/target/iscsi/Kconfig4
-rw-r--r--drivers/target/iscsi/iscsi_target.c153
-rw-r--r--drivers/target/iscsi/iscsi_target_login.c50
-rw-r--r--drivers/target/iscsi/iscsi_target_login.h1
-rw-r--r--drivers/target/iscsi/iscsi_target_nego.c21
6 files changed, 53 insertions, 180 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index c085dd81ebe7..63ec2f218431 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4143,6 +4143,10 @@ static const struct ata_dev_quirks_entry __ata_dev_quirks[] = {
{ "Samsung SSD 860*", NULL, ATA_QUIRK_NO_NCQ_TRIM |
ATA_QUIRK_ZERO_AFTER_TRIM |
ATA_QUIRK_NO_NCQ_ON_ATI },
+ { "Samsung SSD 870 QVO*", NULL, ATA_QUIRK_NO_NCQ_TRIM |
+ ATA_QUIRK_ZERO_AFTER_TRIM |
+ ATA_QUIRK_NO_NCQ_ON_ATI |
+ ATA_QUIRK_NOLPM },
{ "Samsung SSD 870*", NULL, ATA_QUIRK_NO_NCQ_TRIM |
ATA_QUIRK_ZERO_AFTER_TRIM |
ATA_QUIRK_NO_NCQ_ON_ATI },
diff --git a/drivers/target/iscsi/Kconfig b/drivers/target/iscsi/Kconfig
index 922b207bc69d..70d76f3dd693 100644
--- a/drivers/target/iscsi/Kconfig
+++ b/drivers/target/iscsi/Kconfig
@@ -2,9 +2,9 @@
config ISCSI_TARGET
tristate "SCSI Target Mode Stack"
depends on INET
+ select CRC32
select CRYPTO
- select CRYPTO_CRC32C
- select CRYPTO_CRC32C_INTEL if X86
+ select CRYPTO_HASH
help
Say M to enable the SCSI target mode stack. A SCSI target mode stack
is software that makes local storage available over a storage network
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 6002283cbeba..091c1efccfb7 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -8,7 +8,7 @@
*
******************************************************************************/
-#include <crypto/hash.h>
+#include <linux/crc32c.h>
#include <linux/string.h>
#include <linux/kthread.h>
#include <linux/completion.h>
@@ -490,8 +490,8 @@ void iscsit_aborted_task(struct iscsit_conn *conn, struct iscsit_cmd *cmd)
}
EXPORT_SYMBOL(iscsit_aborted_task);
-static void iscsit_do_crypto_hash_buf(struct ahash_request *, const void *,
- u32, u32, const void *, void *);
+static u32 iscsit_crc_buf(const void *buf, u32 payload_length,
+ u32 padding, const void *pad_bytes);
static void iscsit_tx_thread_wait_for_tcp(struct iscsit_conn *);
static int
@@ -510,9 +510,7 @@ iscsit_xmit_nondatain_pdu(struct iscsit_conn *conn, struct iscsit_cmd *cmd,
if (conn->conn_ops->HeaderDigest) {
u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
- iscsit_do_crypto_hash_buf(conn->conn_tx_hash, hdr,
- ISCSI_HDR_LEN, 0, NULL,
- header_digest);
+ *header_digest = iscsit_crc_buf(hdr, ISCSI_HDR_LEN, 0, NULL);
iov[0].iov_len += ISCSI_CRC_LEN;
tx_size += ISCSI_CRC_LEN;
@@ -537,11 +535,9 @@ iscsit_xmit_nondatain_pdu(struct iscsit_conn *conn, struct iscsit_cmd *cmd,
}
if (conn->conn_ops->DataDigest) {
- iscsit_do_crypto_hash_buf(conn->conn_tx_hash,
- data_buf, data_buf_len,
- padding, &cmd->pad_bytes,
- &cmd->data_crc);
-
+ cmd->data_crc = iscsit_crc_buf(data_buf, data_buf_len,
+ padding,
+ &cmd->pad_bytes);
iov[niov].iov_base = &cmd->data_crc;
iov[niov++].iov_len = ISCSI_CRC_LEN;
tx_size += ISCSI_CRC_LEN;
@@ -566,8 +562,8 @@ iscsit_xmit_nondatain_pdu(struct iscsit_conn *conn, struct iscsit_cmd *cmd,
static int iscsit_map_iovec(struct iscsit_cmd *cmd, struct kvec *iov, int nvec,
u32 data_offset, u32 data_length);
static void iscsit_unmap_iovec(struct iscsit_cmd *);
-static u32 iscsit_do_crypto_hash_sg(struct ahash_request *, struct iscsit_cmd *,
- u32, u32, u32, u8 *);
+static u32 iscsit_crc_sglist(const struct iscsit_cmd *cmd, u32 data_length,
+ u32 padding, const u8 *pad_bytes);
static int
iscsit_xmit_datain_pdu(struct iscsit_conn *conn, struct iscsit_cmd *cmd,
const struct iscsi_datain *datain)
@@ -584,10 +580,8 @@ iscsit_xmit_datain_pdu(struct iscsit_conn *conn, struct iscsit_cmd *cmd,
if (conn->conn_ops->HeaderDigest) {
u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
- iscsit_do_crypto_hash_buf(conn->conn_tx_hash, cmd->pdu,
- ISCSI_HDR_LEN, 0, NULL,
- header_digest);
-
+ *header_digest = iscsit_crc_buf(cmd->pdu, ISCSI_HDR_LEN, 0,
+ NULL);
iov[0].iov_len += ISCSI_CRC_LEN;
tx_size += ISCSI_CRC_LEN;
@@ -614,12 +608,8 @@ iscsit_xmit_datain_pdu(struct iscsit_conn *conn, struct iscsit_cmd *cmd,
}
if (conn->conn_ops->DataDigest) {
- cmd->data_crc = iscsit_do_crypto_hash_sg(conn->conn_tx_hash,
- cmd, datain->offset,
- datain->length,
- cmd->padding,
- cmd->pad_bytes);
-
+ cmd->data_crc = iscsit_crc_sglist(cmd, datain->length,
+ cmd->padding, cmd->pad_bytes);
iov[iov_count].iov_base = &cmd->data_crc;
iov[iov_count++].iov_len = ISCSI_CRC_LEN;
tx_size += ISCSI_CRC_LEN;
@@ -1404,77 +1394,45 @@ iscsit_handle_scsi_cmd(struct iscsit_conn *conn, struct iscsit_cmd *cmd,
return iscsit_get_immediate_data(cmd, hdr, dump_payload);
}
-static u32 iscsit_do_crypto_hash_sg(
- struct ahash_request *hash,
- struct iscsit_cmd *cmd,
- u32 data_offset,
- u32 data_length,
- u32 padding,
- u8 *pad_bytes)
+static u32 iscsit_crc_sglist(const struct iscsit_cmd *cmd, u32 data_length,
+ u32 padding, const u8 *pad_bytes)
{
- u32 data_crc;
- struct scatterlist *sg;
- unsigned int page_off;
-
- crypto_ahash_init(hash);
-
- sg = cmd->first_data_sg;
- page_off = cmd->first_data_sg_off;
-
- if (data_length && page_off) {
- struct scatterlist first_sg;
- u32 len = min_t(u32, data_length, sg->length - page_off);
-
- sg_init_table(&first_sg, 1);
- sg_set_page(&first_sg, sg_page(sg), len, sg->offset + page_off);
-
- ahash_request_set_crypt(hash, &first_sg, NULL, len);
- crypto_ahash_update(hash);
-
- data_length -= len;
- sg = sg_next(sg);
- }
+ struct scatterlist *sg = cmd->first_data_sg;
+ unsigned int page_off = cmd->first_data_sg_off;
+ u32 crc = ~0;
while (data_length) {
- u32 cur_len = min_t(u32, data_length, sg->length);
+ u32 cur_len = min_t(u32, data_length, sg->length - page_off);
+ const void *virt;
- ahash_request_set_crypt(hash, sg, NULL, cur_len);
- crypto_ahash_update(hash);
+ virt = kmap_local_page(sg_page(sg)) + sg->offset + page_off;
+ crc = crc32c(crc, virt, cur_len);
+ kunmap_local(virt);
- data_length -= cur_len;
/* iscsit_map_iovec has already checked for invalid sg pointers */
sg = sg_next(sg);
- }
- if (padding) {
- struct scatterlist pad_sg;
-
- sg_init_one(&pad_sg, pad_bytes, padding);
- ahash_request_set_crypt(hash, &pad_sg, (u8 *)&data_crc,
- padding);
- crypto_ahash_finup(hash);
- } else {
- ahash_request_set_crypt(hash, NULL, (u8 *)&data_crc, 0);
- crypto_ahash_final(hash);
+ page_off = 0;
+ data_length -= cur_len;
}
- return data_crc;
+ if (padding)
+ crc = crc32c(crc, pad_bytes, padding);
+
+ return ~crc;
}
-static void iscsit_do_crypto_hash_buf(struct ahash_request *hash,
- const void *buf, u32 payload_length, u32 padding,
- const void *pad_bytes, void *data_crc)
+static u32 iscsit_crc_buf(const void *buf, u32 payload_length,
+ u32 padding, const void *pad_bytes)
{
- struct scatterlist sg[2];
+ u32 crc = ~0;
- sg_init_table(sg, ARRAY_SIZE(sg));
- sg_set_buf(sg, buf, payload_length);
- if (padding)
- sg_set_buf(sg + 1, pad_bytes, padding);
+ crc = crc32c(crc, buf, payload_length);
- ahash_request_set_crypt(hash, sg, data_crc, payload_length + padding);
+ if (padding)
+ crc = crc32c(crc, pad_bytes, padding);
- crypto_ahash_digest(hash);
+ return ~crc;
}
int
@@ -1662,11 +1620,8 @@ iscsit_get_dataout(struct iscsit_conn *conn, struct iscsit_cmd *cmd,
if (conn->conn_ops->DataDigest) {
u32 data_crc;
- data_crc = iscsit_do_crypto_hash_sg(conn->conn_rx_hash, cmd,
- be32_to_cpu(hdr->offset),
- payload_length, padding,
- cmd->pad_bytes);
-
+ data_crc = iscsit_crc_sglist(cmd, payload_length, padding,
+ cmd->pad_bytes);
if (checksum != data_crc) {
pr_err("ITT: 0x%08x, Offset: %u, Length: %u,"
" DataSN: 0x%08x, CRC32C DataDigest 0x%08x"
@@ -1925,10 +1880,8 @@ static int iscsit_handle_nop_out(struct iscsit_conn *conn, struct iscsit_cmd *cm
}
if (conn->conn_ops->DataDigest) {
- iscsit_do_crypto_hash_buf(conn->conn_rx_hash, ping_data,
- payload_length, padding,
- cmd->pad_bytes, &data_crc);
-
+ data_crc = iscsit_crc_buf(ping_data, payload_length,
+ padding, cmd->pad_bytes);
if (checksum != data_crc) {
pr_err("Ping data CRC32C DataDigest"
" 0x%08x does not match computed 0x%08x\n",
@@ -2328,10 +2281,7 @@ iscsit_handle_text_cmd(struct iscsit_conn *conn, struct iscsit_cmd *cmd,
goto reject;
if (conn->conn_ops->DataDigest) {
- iscsit_do_crypto_hash_buf(conn->conn_rx_hash,
- text_in, rx_size, 0, NULL,
- &data_crc);
-
+ data_crc = iscsit_crc_buf(text_in, rx_size, 0, NULL);
if (checksum != data_crc) {
pr_err("Text data CRC32C DataDigest"
" 0x%08x does not match computed"
@@ -2688,10 +2638,8 @@ static int iscsit_handle_immediate_data(
if (conn->conn_ops->DataDigest) {
u32 data_crc;
- data_crc = iscsit_do_crypto_hash_sg(conn->conn_rx_hash, cmd,
- cmd->write_data_done, length, padding,
- cmd->pad_bytes);
-
+ data_crc = iscsit_crc_sglist(cmd, length, padding,
+ cmd->pad_bytes);
if (checksum != data_crc) {
pr_err("ImmediateData CRC32C DataDigest 0x%08x"
" does not match computed 0x%08x\n", checksum,
@@ -4116,10 +4064,8 @@ static void iscsit_get_rx_pdu(struct iscsit_conn *conn)
break;
}
- iscsit_do_crypto_hash_buf(conn->conn_rx_hash, buffer,
- ISCSI_HDR_LEN, 0, NULL,
- &checksum);
-
+ checksum = iscsit_crc_buf(buffer, ISCSI_HDR_LEN, 0,
+ NULL);
if (digest != checksum) {
pr_err("HeaderDigest CRC32C failed,"
" received 0x%08x, computed 0x%08x\n",
@@ -4406,15 +4352,6 @@ int iscsit_close_connection(
*/
iscsit_check_conn_usage_count(conn);
- ahash_request_free(conn->conn_tx_hash);
- if (conn->conn_rx_hash) {
- struct crypto_ahash *tfm;
-
- tfm = crypto_ahash_reqtfm(conn->conn_rx_hash);
- ahash_request_free(conn->conn_rx_hash);
- crypto_free_ahash(tfm);
- }
-
if (conn->sock)
sock_release(conn->sock);
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c
index 90b870f234f0..c2ac9a99ebbb 100644
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -8,7 +8,6 @@
*
******************************************************************************/
-#include <crypto/hash.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/kthread.h>
@@ -71,46 +70,6 @@ out_login:
return NULL;
}
-/*
- * Used by iscsi_target_nego.c:iscsi_target_locate_portal() to setup
- * per struct iscsit_conn libcrypto contexts for crc32c and crc32-intel
- */
-int iscsi_login_setup_crypto(struct iscsit_conn *conn)
-{
- struct crypto_ahash *tfm;
-
- /*
- * Setup slicing by CRC32C algorithm for RX and TX libcrypto contexts
- * which will default to crc32c_intel.ko for cpu_has_xmm4_2, or fallback
- * to software 1x8 byte slicing from crc32c.ko
- */
- tfm = crypto_alloc_ahash("crc32c", 0, CRYPTO_ALG_ASYNC);
- if (IS_ERR(tfm)) {
- pr_err("crypto_alloc_ahash() failed\n");
- return -ENOMEM;
- }
-
- conn->conn_rx_hash = ahash_request_alloc(tfm, GFP_KERNEL);
- if (!conn->conn_rx_hash) {
- pr_err("ahash_request_alloc() failed for conn_rx_hash\n");
- crypto_free_ahash(tfm);
- return -ENOMEM;
- }
- ahash_request_set_callback(conn->conn_rx_hash, 0, NULL, NULL);
-
- conn->conn_tx_hash = ahash_request_alloc(tfm, GFP_KERNEL);
- if (!conn->conn_tx_hash) {
- pr_err("ahash_request_alloc() failed for conn_tx_hash\n");
- ahash_request_free(conn->conn_rx_hash);
- conn->conn_rx_hash = NULL;
- crypto_free_ahash(tfm);
- return -ENOMEM;
- }
- ahash_request_set_callback(conn->conn_tx_hash, 0, NULL, NULL);
-
- return 0;
-}
-
static int iscsi_login_check_initiator_version(
struct iscsit_conn *conn,
u8 version_max,
@@ -1165,15 +1124,6 @@ old_sess_out:
iscsit_dec_session_usage_count(conn->sess);
}
- ahash_request_free(conn->conn_tx_hash);
- if (conn->conn_rx_hash) {
- struct crypto_ahash *tfm;
-
- tfm = crypto_ahash_reqtfm(conn->conn_rx_hash);
- ahash_request_free(conn->conn_rx_hash);
- crypto_free_ahash(tfm);
- }
-
if (conn->param_list) {
iscsi_release_param_list(conn->param_list);
conn->param_list = NULL;
diff --git a/drivers/target/iscsi/iscsi_target_login.h b/drivers/target/iscsi/iscsi_target_login.h
index e8760735486b..03c7d695d58f 100644
--- a/drivers/target/iscsi/iscsi_target_login.h
+++ b/drivers/target/iscsi/iscsi_target_login.h
@@ -9,7 +9,6 @@ struct iscsi_login;
struct iscsi_np;
struct sockaddr_storage;
-extern int iscsi_login_setup_crypto(struct iscsit_conn *);
extern int iscsi_check_for_session_reinstatement(struct iscsit_conn *);
extern int iscsi_login_post_auth_non_zero_tsih(struct iscsit_conn *, u16, u32);
extern int iscsit_setup_np(struct iscsi_np *,
diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c
index fa3fb5f4e6bc..16e3ded98c32 100644
--- a/drivers/target/iscsi/iscsi_target_nego.c
+++ b/drivers/target/iscsi/iscsi_target_nego.c
@@ -1194,14 +1194,7 @@ int iscsi_target_locate_portal(
goto get_target;
sess->sess_ops->SessionType = 1;
- /*
- * Setup crc32c modules from libcrypto
- */
- if (iscsi_login_setup_crypto(conn) < 0) {
- pr_err("iscsi_login_setup_crypto() failed\n");
- ret = -1;
- goto out;
- }
+
/*
* Serialize access across the discovery struct iscsi_portal_group to
* process login attempt.
@@ -1258,17 +1251,7 @@ get_target:
}
conn->tpg_np = tpg_np;
pr_debug("Located Portal Group Object: %hu\n", conn->tpg->tpgt);
- /*
- * Setup crc32c modules from libcrypto
- */
- if (iscsi_login_setup_crypto(conn) < 0) {
- pr_err("iscsi_login_setup_crypto() failed\n");
- kref_put(&tpg_np->tpg_np_kref, iscsit_login_kref_put);
- iscsit_put_tiqn_for_login(tiqn);
- conn->tpg = NULL;
- ret = -1;
- goto out;
- }
+
/*
* Serialize access across the struct iscsi_portal_group to
* process login attempt.