Commit e236ab0d authored by Srujana Challa's avatar Srujana Challa Committed by Herbert Xu
Browse files

crypto: octeontx2 - increase CPT HW instruction queue length 



LDWB is getting incorrectly used in HW when
CPT_AF_LF()_PTR_CTL[IQB_LDWB]=1 and CPT instruction queue has less than
320 free entries. So, increase HW instruction queue size by 320 and give
320 entries less for SW/NIX RX as a SW workaround.

Signed-off-by: default avatarSrujana Challa <schalla@marvell.com>
Signed-off-by: default avatarShijith Thotton <sthotton@marvell.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 9eef6e97

drivers/crypto/marvell/octeontx2/otx2_cptlf.h

+15 −4
Original line number Diff line number Diff line
@@ -26,12 +26,22 @@ 
 */

#define OTX2_CPT_INST_QLEN_MSGS	((OTX2_CPT_SIZE_DIV40 - 1) * 40)



/*

 * LDWB is getting incorrectly used when IQB_LDWB = 1 and CPT instruction

 * queue has less than 320 free entries. So, increase HW instruction queue

 * size by 320 and give 320 entries less for SW/NIX RX as a workaround.

 */

#define OTX2_CPT_INST_QLEN_EXTRA_BYTES  (320 * OTX2_CPT_INST_SIZE)

#define OTX2_CPT_EXTRA_SIZE_DIV40       (320/40)



/* CPT instruction queue length in bytes */

#define OTX2_CPT_INST_QLEN_BYTES (OTX2_CPT_SIZE_DIV40 * 40 * \

				  OTX2_CPT_INST_SIZE)

#define OTX2_CPT_INST_QLEN_BYTES                                               \

		((OTX2_CPT_SIZE_DIV40 * 40 * OTX2_CPT_INST_SIZE) +             \

		OTX2_CPT_INST_QLEN_EXTRA_BYTES)



/* CPT instruction group queue length in bytes */

#define OTX2_CPT_INST_GRP_QLEN_BYTES (OTX2_CPT_SIZE_DIV40 * 16)

#define OTX2_CPT_INST_GRP_QLEN_BYTES                                           \

		((OTX2_CPT_SIZE_DIV40 + OTX2_CPT_EXTRA_SIZE_DIV40) * 16)



/* CPT FC length in bytes */

#define OTX2_CPT_Q_FC_LEN 128
@@ -179,7 +189,8 @@ static inline void otx2_cptlf_do_set_iqueue_size(struct otx2_cptlf_info *lf) 
{

	union otx2_cptx_lf_q_size lf_q_size = { .u = 0x0 };



	lf_q_size.s.size_div40 = OTX2_CPT_SIZE_DIV40;

	lf_q_size.s.size_div40 = OTX2_CPT_SIZE_DIV40 +

				 OTX2_CPT_EXTRA_SIZE_DIV40;

	otx2_cpt_write64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,

			 OTX2_CPT_LF_Q_SIZE, lf_q_size.u);

}