[infiniband] Generate more specific errors in response to failure MADs
Generate errors within individual MAD transaction consumers such as ib_pathrec.c and ib_mcast.c, rather than within ib_mi.c. This allows for more meaningful error messages to eventually be displayed to the user.
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@ -148,6 +148,8 @@ static void ib_cm_req_complete ( struct ib_device *ibdev,
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size_t private_data_len = 0;
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/* Report failures */
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if ( ( rc == 0 ) && ( mad->hdr.status != htons ( IB_MGMT_STATUS_OK ) ))
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rc = -EIO;
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if ( rc != 0 ) {
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DBGC ( conn, "CM %p connection request failed: %s\n",
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conn, strerror ( rc ) );
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@ -195,7 +197,7 @@ static void ib_cm_req_complete ( struct ib_device *ibdev,
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default:
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DBGC ( conn, "CM %p unexpected response (attribute %04x)\n",
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conn, ntohs ( mad->hdr.attr_id ) );
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rc = -EIO;
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rc = -ENOTSUP;
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break;
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}
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@ -86,6 +86,8 @@ static void ib_mcast_complete ( struct ib_device *ibdev,
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unsigned long qkey;
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/* Report failures */
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if ( ( rc == 0 ) && ( mad->hdr.status != htons ( IB_MGMT_STATUS_OK ) ))
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rc = -ENOTCONN;
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if ( rc != 0 ) {
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DBGC ( ibdev, "IBDEV %p QPN %lx join failed: %s\n",
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ibdev, qp->qpn, strerror ( rc ) );
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@ -76,18 +76,14 @@ static int ib_mi_handle ( struct ib_device *ibdev,
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struct ib_mad_hdr *hdr = &mad->hdr;
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struct ib_mad_transaction *madx;
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struct ib_mad_agent *agent;
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int rc;
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/* Look for a matching transaction by TID */
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list_for_each_entry ( madx, &mi->madx, list ) {
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if ( memcmp ( &hdr->tid, &madx->mad.hdr.tid,
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sizeof ( hdr->tid ) ) != 0 )
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continue;
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/* Get transaction result status */
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rc = ( ( hdr->status == htons ( IB_MGMT_STATUS_OK ) ) ?
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0 : -EIO );
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/* Found a matching transaction */
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madx->op->complete ( ibdev, mi, madx, rc, mad, av );
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madx->op->complete ( ibdev, mi, madx, 0, mad, av );
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return 0;
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}
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@ -53,6 +53,8 @@ static void ib_path_complete ( struct ib_device *ibdev,
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struct ib_path_record *pathrec = &mad->sa.sa_data.path_record;
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/* Report failures */
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if ( ( rc == 0 ) && ( mad->hdr.status != htons ( IB_MGMT_STATUS_OK ) ))
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rc = -ENETUNREACH;
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if ( rc != 0 ) {
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DBGC ( ibdev, "IBDEV %p path lookup for %08x:%08x:%08x:%08x "
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"failed: %s\n", ibdev, htonl ( dgid->u.dwords[0] ),
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