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Commit 6f671045 authored by Ben Wei's avatar Ben Wei Committed by David S. Miller
Browse files

net/ncsi: add response handlers for PLDM over NC-SI 



This patch adds handlers for PLDM over NC-SI command response.

This enables NC-SI driver recognizes the packet type so the responses
don't get dropped as unknown packet type.

PLDM over NC-SI are not handled in kernel driver for now, but can be
passed back to user space via Netlink for further handling.

Signed-off-by: default avatarBen Wei <benwei@fb.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 38320f69

net/ncsi/ncsi-pkt.h

+5 −0
Original line number Diff line number Diff line
@@ -387,6 +387,9 @@ struct ncsi_aen_hncdsc_pkt { 
#define NCSI_PKT_CMD_OEM	0x50 /* OEM                              */

#define NCSI_PKT_CMD_PLDM	0x51 /* PLDM request over NCSI over RBT  */

#define NCSI_PKT_CMD_GPUUID	0x52 /* Get package UUID                 */

#define NCSI_PKT_CMD_QPNPR	0x56 /* Query Pending NC PLDM request */

#define NCSI_PKT_CMD_SNPR	0x57 /* Send NC PLDM Reply  */





/* NCSI packet responses */

#define NCSI_PKT_RSP_CIS	(NCSI_PKT_CMD_CIS    + 0x80)
@@ -419,6 +422,8 @@ struct ncsi_aen_hncdsc_pkt { 
#define NCSI_PKT_RSP_OEM	(NCSI_PKT_CMD_OEM    + 0x80)

#define NCSI_PKT_RSP_PLDM	(NCSI_PKT_CMD_PLDM   + 0x80)

#define NCSI_PKT_RSP_GPUUID	(NCSI_PKT_CMD_GPUUID + 0x80)

#define NCSI_PKT_RSP_QPNPR	(NCSI_PKT_CMD_QPNPR   + 0x80)

#define NCSI_PKT_RSP_SNPR	(NCSI_PKT_CMD_SNPR   + 0x80)



/* NCSI response code/reason */

#define NCSI_PKT_RSP_C_COMPLETED	0x0000 /* Command Completed        */

net/ncsi/ncsi-rsp.c

+9 −2
Original line number Diff line number Diff line
@@ -1038,6 +1038,11 @@ static int ncsi_rsp_handler_gpuuid(struct ncsi_request *nr) 
	return 0;

}



static int ncsi_rsp_handler_pldm(struct ncsi_request *nr)

{

	return 0;

}



static int ncsi_rsp_handler_netlink(struct ncsi_request *nr)

{

	struct ncsi_dev_priv *ndp = nr->ndp;
@@ -1091,8 +1096,10 @@ static struct ncsi_rsp_handler { 
	{ NCSI_PKT_RSP_GNPTS,  48, ncsi_rsp_handler_gnpts   },

	{ NCSI_PKT_RSP_GPS,     8, ncsi_rsp_handler_gps     },

	{ NCSI_PKT_RSP_OEM,    -1, ncsi_rsp_handler_oem     },

	{ NCSI_PKT_RSP_PLDM,    0, NULL                     },

	{ NCSI_PKT_RSP_GPUUID, 20, ncsi_rsp_handler_gpuuid  }

	{ NCSI_PKT_RSP_PLDM,   -1, ncsi_rsp_handler_pldm    },

	{ NCSI_PKT_RSP_GPUUID, 20, ncsi_rsp_handler_gpuuid  },

	{ NCSI_PKT_RSP_QPNPR,  -1, ncsi_rsp_handler_pldm    },

	{ NCSI_PKT_RSP_SNPR,   -1, ncsi_rsp_handler_pldm    }

};



int ncsi_rcv_rsp(struct sk_buff *skb, struct net_device *dev,