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Commit bf9ab22c authored by Steve Wise's avatar Steve Wise Committed by Greg Kroah-Hartman
Browse files

iw_cxgb4: set correct FetchBurstMax for QPs 



commit b414fa01c31318383ae29d9d23cb9ca4184bbd86 upstream.

The current QP FetchBurstMax value is 256B, which
is incorrect since a WR can exceed that value.  The
result being a partial WR fetched by hardware, and
a fatal "bad WR" error posted by the SGE.

So bump the FetchBurstMax to 512B.

Signed-off-by: default avatarSteve Wise <swise@opengridcomputing.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 13363b69

drivers/infiniband/hw/cxgb4/qp.c

+3 −2
Original line number Diff line number Diff line
@@ -321,7 +321,8 @@ static int create_qp(struct c4iw_rdev *rdev, struct t4_wq *wq, 
		FW_RI_RES_WR_DCAEN_V(0) |

		FW_RI_RES_WR_DCACPU_V(0) |

		FW_RI_RES_WR_FBMIN_V(2) |

		FW_RI_RES_WR_FBMAX_V(2) |

		(t4_sq_onchip(&wq->sq) ? FW_RI_RES_WR_FBMAX_V(2) :

					 FW_RI_RES_WR_FBMAX_V(3)) |

		FW_RI_RES_WR_CIDXFTHRESHO_V(0) |

		FW_RI_RES_WR_CIDXFTHRESH_V(0) |

		FW_RI_RES_WR_EQSIZE_V(eqsize));
@@ -345,7 +346,7 @@ static int create_qp(struct c4iw_rdev *rdev, struct t4_wq *wq, 
		FW_RI_RES_WR_DCAEN_V(0) |

		FW_RI_RES_WR_DCACPU_V(0) |

		FW_RI_RES_WR_FBMIN_V(2) |

		FW_RI_RES_WR_FBMAX_V(2) |

		FW_RI_RES_WR_FBMAX_V(3) |

		FW_RI_RES_WR_CIDXFTHRESHO_V(0) |

		FW_RI_RES_WR_CIDXFTHRESH_V(0) |

		FW_RI_RES_WR_EQSIZE_V(eqsize));