From 84318a9f01ce13650ea23eb6362066bb95ccc9fe Mon Sep 17 00:00:00 2001 From: Quinn Tran Date: Wed, 23 Jun 2021 22:25:58 -0700 Subject: scsi: qla2xxx: edif: Add send, receive, and accept for auth_els Some FC adapters from Marvell offer the ability to encrypt data in flight (EDIF). This feature requires an application to act as an authenticator. Add the ability for authentication application to send and retrieve messages as part of the authentication process via existing FC_BSG_HST_ELS_NOLOGIN BSG interface. To send a message, application is expected to format the data in the AUTH ELS format. Refer to FC-SP2 for details. If a message was received, application is required to reply with either a LS_ACC or LS_RJT complete the exchange using the same interface. Otherwise, remote device will treat it as a timeout. Link: https://lore.kernel.org/r/20210624052606.21613-4-njavali@marvell.com Reviewed-by: Hannes Reinecke Reviewed-by: Himanshu Madhani Co-developed-by: Larry Wisneski Signed-off-by: Larry Wisneski Co-developed-by: Duane Grigsby Signed-off-by: Duane Grigsby Co-developed-by: Rick Hicksted Jr Signed-off-by: Rick Hicksted Jr Signed-off-by: Quinn Tran Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_iocb.c | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) (limited to 'drivers/scsi/qla2xxx/qla_iocb.c') diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c index 1376aafe1c5c..77bacf2c2340 100644 --- a/drivers/scsi/qla2xxx/qla_iocb.c +++ b/drivers/scsi/qla2xxx/qla_iocb.c @@ -3053,6 +3053,43 @@ done: return rval; } +/* it is assume qpair lock is held */ +void qla_els_pt_iocb(struct scsi_qla_host *vha, + struct els_entry_24xx *els_iocb, + struct qla_els_pt_arg *a) +{ + els_iocb->entry_type = ELS_IOCB_TYPE; + els_iocb->entry_count = 1; + els_iocb->sys_define = 0; + els_iocb->entry_status = 0; + els_iocb->handle = QLA_SKIP_HANDLE; + els_iocb->nport_handle = a->nport_handle; + els_iocb->rx_xchg_address = a->rx_xchg_address; + els_iocb->tx_dsd_count = cpu_to_le16(1); + els_iocb->vp_index = a->vp_idx; + els_iocb->sof_type = EST_SOFI3; + els_iocb->rx_dsd_count = cpu_to_le16(0); + els_iocb->opcode = a->els_opcode; + + els_iocb->d_id[0] = a->did.b.al_pa; + els_iocb->d_id[1] = a->did.b.area; + els_iocb->d_id[2] = a->did.b.domain; + /* For SID the byte order is different than DID */ + els_iocb->s_id[1] = vha->d_id.b.al_pa; + els_iocb->s_id[2] = vha->d_id.b.area; + els_iocb->s_id[0] = vha->d_id.b.domain; + + els_iocb->control_flags = cpu_to_le16(a->control_flags); + + els_iocb->tx_byte_count = cpu_to_le32(a->tx_byte_count); + els_iocb->tx_len = cpu_to_le32(a->tx_len); + put_unaligned_le64(a->tx_addr, &els_iocb->tx_address); + + els_iocb->rx_byte_count = cpu_to_le32(a->rx_byte_count); + els_iocb->rx_len = cpu_to_le32(a->rx_len); + put_unaligned_le64(a->rx_addr, &els_iocb->rx_address); +} + static void qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) { @@ -3751,6 +3788,10 @@ qla2x00_start_sp(srb_t *sp) case SRB_ELS_CMD_HST: qla24xx_els_iocb(sp, pkt); break; + case SRB_ELS_CMD_HST_NOLOGIN: + qla_els_pt_iocb(sp->vha, pkt, &sp->u.bsg_cmd.u.els_arg); + ((struct els_entry_24xx *)pkt)->handle = sp->handle; + break; case SRB_CT_CMD: IS_FWI2_CAPABLE(ha) ? qla24xx_ct_iocb(sp, pkt) : -- cgit v1.2.3