Why doesn't the MRG 1.3 RT kernel 2.6.33.7-rt29.47.el5rt detect bnx2 NIC while the previous RT kernel 2.6.24.7-149.el5rt detects them ?

Issue

• Why doesn't the MRG 1.3 RT kernel 2.6.33.7-rt29.47.el5rt detect bnx2 NIC while the previous RT kernel 2.6.24.7-149.el5rt  detects them ?

       With kernel  2.6.33.7-rt29.47.el5rt, following message is noticed in /var/log/dmesg

      bnx2 0000:04:00.1: PCI INT B -> GSI 19 (level, low) -> IRQ 19
      bnx2 0000:04:00.1: setting latency timer to 64
      bnx2 0000:04:00.1: firmware: requesting bnx2/bnx2-mips-09-5.0.0.j9.fw
      bnx2: Can't load firmware file "bnx2/bnx2-mips-09-5.0.0.j9.fw"      bnx2 0000:04:00.1: PCI INT B disabled
      bnx2: probe of 0000:04:00.1 failed with error -2