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cxgb4/chtls/cxgbit: Keeping the max ofld immediate data size same in cxgb4 and ulds

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[ Upstream commit 2355a6773a2cb0d2dce13432dde78497f1d6617b ]

The Max imm data size in cxgb4 is not similar to the max imm data size
in the chtls. This caused an mismatch in output of is_ofld_imm() of
cxgb4 and chtls. So fixed this by keeping the max wreq size of imm data
same in both chtls and cxgb4 as MAX_IMM_OFLD_TX_DATA_WR_LEN.

As cxgb4's max imm. data value for ofld packets is changed to
MAX_IMM_OFLD_TX_DATA_WR_LEN. Using the same in cxgbit also.

Fixes: 36bedb3f2e ("crypto: chtls - Inline TLS record Tx")
Signed-off-by: Ayush Sawal <ayush.sawal@chelsio.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Ayush Sawal 2021-02-15 17:12:26 +05:30 committed by Greg Kroah-Hartman
parent 21248186f9
commit e6d0245601
4 changed files with 12 additions and 8 deletions
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3
drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
View File

@ -46,6 +46,9 @@
#define MAX_ULD_QSETS 16
#define MAX_ULD_NPORTS 4
/* ulp_mem_io + ulptx_idata + payload + padding */
#define MAX_IMM_ULPTX_WR_LEN (32 + 8 + 256 + 8)
/* CPL message priority levels */
enum {
CPL_PRIORITY_DATA = 0, /* data messages */

11
drivers/net/ethernet/chelsio/cxgb4/sge.c
View File

@ -2842,17 +2842,22 @@ int t4_mgmt_tx(struct adapter *adap, struct sk_buff *skb)
* @skb: the packet
*
* Returns true if a packet can be sent as an offload WR with immediate
* data. We currently use the same limit as for Ethernet packets.
* data.
* FW_OFLD_TX_DATA_WR limits the payload to 255 bytes due to 8-bit field.
* However, FW_ULPTX_WR commands have a 256 byte immediate only
* payload limit.
*/
static inline int is_ofld_imm(const struct sk_buff *skb)
{
struct work_request_hdr *req = (struct work_request_hdr *)skb->data;
unsigned long opcode = FW_WR_OP_G(ntohl(req->wr_hi));
if (opcode == FW_CRYPTO_LOOKASIDE_WR)
if (unlikely(opcode == FW_ULPTX_WR))
return skb->len <= MAX_IMM_ULPTX_WR_LEN;
else if (opcode == FW_CRYPTO_LOOKASIDE_WR)
return skb->len <= SGE_MAX_WR_LEN;
else
return skb->len <= MAX_IMM_TX_PKT_LEN;
return skb->len <= MAX_IMM_OFLD_TX_DATA_WR_LEN;
}
/**

3
drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.h
View File

@ -50,9 +50,6 @@
#define MIN_RCV_WND (24 * 1024U)
#define LOOPBACK(x) (((x) & htonl(0xff000000)) == htonl(0x7f000000))
/* ulp_mem_io + ulptx_idata + payload + padding */
#define MAX_IMM_ULPTX_WR_LEN (32 + 8 + 256 + 8)
/* for TX: a skb must have a headroom of at least TX_HEADER_LEN bytes */
#define TX_HEADER_LEN \
(sizeof(struct fw_ofld_tx_data_wr) + sizeof(struct sge_opaque_hdr))

3
drivers/target/iscsi/cxgbit/cxgbit_target.c
View File

@ -86,8 +86,7 @@ static int cxgbit_is_ofld_imm(const struct sk_buff *skb)
if (likely(cxgbit_skcb_flags(skb) & SKCBF_TX_ISO))
length += sizeof(struct cpl_tx_data_iso);
#define MAX_IMM_TX_PKT_LEN 256
return length <= MAX_IMM_TX_PKT_LEN;
return length <= MAX_IMM_OFLD_TX_DATA_WR_LEN;
}
/*